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Fruits are mature ovules

No a fruit is not a mature ovule. After fertilization has taken place in a flower the fruit formation process initiates. Some changes takes place as... See full answer below A fruit is A) a mature ovary. Ovules are attached to the placenta in the ovary through a stalk-like structure known as a funiculus (plural, funiculi). (v)Apple and cashewnuts are not called true fruits. (v)Apple and cashewnuts are not called true fruits. A mature ovule includes the embryo sporophyte, its reserves of food, and the seed coat Fruits are defined differently by different people. In a botanical sense, a fruit is usually restricted to sweet, fleshy foods like bananas, oranges, and peaches. But in a biological sense, cereal grains, nuts, and tomatoes are mature ovaries, and thus, fruits. The fruit encases and protects the seed while it grows

So if we look at seeds, we know that they will be mature. Abu ALS Sow seeds are mature av you ALS, whereas fruit or fruits are mature ovaries. This makes sense, right? Because our ovaries contain the AV, you'll and the ob u ALS will contain an egg which can then be fertilized by the pollen drain and develop into a seat Solutions for Chapter 29 Problem 9SQ: Seeds are mature _____; fruits are mature _____.a. ovaries; ovulesb. ovules; stamensc. ovules; ovariesd. stamens; ovaries Get solutions Get solutions Get solutions done loading Looking for the textbook Solution for Seeds are mature _____; fruits are mature _____.a. ovaries; ovulesb. ovules; stamensc. ovules; ovariesd. stamens; ovarie

Great Prices On Ovules - Ovules On eBa

  1. but this question that we're looking at seeds and fruits, both a mature parts of a plant, but which parts mature into them. We have a reason of yours. Be fuels and steeples. See off using ovaries. Woody Recep schools and every is. So the answer for this one is see of yours material into seats, ovaries, mature indifference
  2. As the ovules inside develop into seeds, the ovary lengthens to many times its original size. It is now much larger than the sepals, which can still be seen at the top of the developing fruit. When mature, the fruit splits open, releasing the many small winge
  3. Some fruits have seeds (mature ovules) enclosed within the ovary (apples, peaches, oranges, squash and cucumbers). The peel of an orange, the pea pod, the sunflower shell, and the skin flesh and pit of a peach are all derived from the pericarp. Other fruit have seeds that are situated on the periphery of the pericarp (corncob, strawberry flesh)
  4. Start studying Fruits. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Home Subjects. Fruits. STUDY. Flashcards. Learn. Write. Spell. Test. PLAY. Match. Gravity. Created by. learoxy. Terms in this set (16) Seed-mature ovule. Fruit-mature ovary. Dehiscent-parent plant retains the ovary wall-ovary breaks open.
  5. Solutions for Chapter 31 Problem 4SQ: Seeds are mature _____; fruits are mature _____.a. ovaries; ovulesb. ovules; stamensc. ovules; ovariesd. stamens; ovaries Get solutions Get solutions Get solutions done loading Looking for the textbook

organs and fruits, ovaries that contain mature ovules. All angiosperms are included in one phylum known as Anthophyta (Anthos in greek - flower). Today Anthophyta are the most diverse and widespread plant group on earth, with more than 250,000 species. Further, these species fall into two large categories, the monocots and dicots. The basi Textbook solution for Biology: The Unity and Diversity of Life (MindTap Course 15th Edition Cecie Starr Chapter 29 Problem 9SQ. We have step-by-step solutions for your textbooks written by Bartleby experts Fruits are classified according to whether they develop from a a generative cell that divides to form two sperm and a tube cell that produces a pollen tube. The ovule, one of which is the egg. The life cycle of an angiosperm begins with the formation of a mature flower on a sporophyte plant and culminates in a. As the fruit matures, the seeds also mature. Fruits may be classified as simple, aggregate, multiple, or accessory, depending on their origin (Figure 3). If the fruit develops from a single carpel or fused carpels of a single ovary, it is known as a simple fruit, as seen in nuts and beans Botanically, a fruit is a mature ovary and its associated parts. It usually contains seeds, which have developed from the enclosed ovule after fertilization, although development without fertilization, called parthenocarpy, is known, for example, in bananas

Is fruit a mature ovule? Study

  1. The ovule-producing reproductive organ of a flower, consisting of the stigma, style, and ovary. A fruit is A) a mature ovary. B) a mature ovule. C) a seed plus its integuments. D) a fused carpel. E) an enlarged embryo sac. A) a mature ovary. Double fertilization means tha
  2. iature plant). The rest of the ovule is very important. The outer covering of the ovule develops into a protective seed coat
  3. Fruit consists of fertilized, mature ovules (seeds) plus the ovary wall, which may be fleshy, as in an apple, or dry and hard, as in an acorn. In some fruits, the seeds are enclosed within the ovary (e.g., apples, peaches, oranges, squash and cucumbers). In others, seeds are situated on the outside of fruit tissue (e.g., corn and strawberries)
  4. Early people recognized the nutritional value of seeds and fruits, and they harvested them from wild plants, and later they figured out how to grow them for food. Biologically, seeds are mature ovules that contain the embryonic plants of the next generation. The tremendous production of seeds ensures the renewal of plant populations

a fruit is a mature ovule - BEMFT UNISB

  1. The key difference between ovary and ovule is that the ovary is a part of the female reproductive structure that develops into a fruit of flowering plants while the ovule is a structure that develops into a seed of seed plants. The flower is the reproductive structure of flowering plants. Some flowers are perfect while some are imperfect flowers
  2. The seeds and fruits are the results of fertilization or sexual reproduction in plants. The ovary in angiosperms develops into the fruit whereas the ovules become the seeds enclosed within the fruit. Seeds are found both in gymnosperms and angiosperms. Let us individually learn about seeds and fruits
  3. Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers.They are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits.Aggregate fruits are formed from a single compound flower and contain many ovaries or fruitlets. Examples include raspberries and blackberries
  4. Ta b le # 3: Fr u i t s A fruit is a mature ovary, sometimes other flower parts such as the receptacle also make up the fruit. Fruits can be simple or compound. They can also be feshy or dry. Simple fruits are derived from a single flower with a single ovary

female gametophytes (ovules), which then produce the female gametes (eggs). A flower may have one or more carpels, and they may be either fused or separate. At the top of the carpel is the stigma, which receives the pollen. The ovary, which encloses the ovules, is at the base of the carpel. Fertilized ovules mature into seeds. The ovary becomes. and ovule development, the SHP genes are required for the differentiation of the dehiscence zone in mature fruit10. Separation of the dehiscence-zone cells is required for the normal seed-dispersal process. The SHP genes, which are expressed in the dehiscence zones of developing fruit, are also expressed in ovules7,8 angiosperm - angiosperm - Seeds: Seeds are the mature ovules. They contain the developing embryo and the nutritive tissue for the seedling. Seeds are surrounded by one or two integuments, which develop into a seed coat that is usually hard. They are enclosed in the ovary of a carpel and thus are protected from the elements and predators. The ovule is attached to the ovary wall until maturity. The mature gynoecium of Arabidopsis is composed of an apical stigma, a short style, and a basal ovary that contains the developing ovules. After the ovules are fertilized, the fruit elongates and differentiates a number of distinct cell types, allowing for the successful maturation and the eventual dispersal of the seeds In mature fruits the proportion of ovules expanding (showing some development over virgin ovules) ranged from 89-95% and did not increase with resource availability, suggesting that unexpanded ovules were either unfertilized or obligately aborted shortly after fertilization. The proportion of expanded ovules maturing in mature fruits was near.

The name angiosperm (greek angion, container) denotes the seeds content in fruits or mature ovaries. These plants bear flowers, a special structure carrying reproductive organs and fruits, ovaries that contain mature ovules. All angiosperms are included in one phylum known as Anthophyta (Anthos in greek - flower). Today Anthophyta are the. Do Ovules Mature Into Fruits. Do Ovules Mature Into Fruits? No. In the flowering plant after fertilization, the ovary matures into a fruit. The ovule is the structure, which develops into a seed during the fertilization process and consists of the female reproductive cells 8) A fruit is : a) a mature ovary b) a mature ovule c) a seed plus its integuments d) a fused carpel e) an enlarged embryo sac. After the transfer of pollen grains from the anther to the stigma of the female flower, the pollen tube is formed from the pollen grain which carries the sperm into the ovary where it fertilizes the ovule forming the.

Mature ovary contains fertilized ovule which is called as seed and is covered by pericarp in a fruit. Types of fruit: Based on the parts of flower: 1. True fruit - Fruit develops only from an ovary 2. False fruit - Fruit develops over and above the ovary, the thalamus or other part of flower is involved When dividing ovule production into different positions within fruit for analysis of the pollination results, we observed that the stylar end showed a significantly higher mature seed set, but a. A mature ovule includes the embryo sporophyte, its reserves of food, and the seed coat. This is collectively called: a. a spore b. a fruit c. the endosper

Fruits Are Actually Mature Ovaries - KnowledgeNut

  1. Ovule, plant structure that develops into a seed when fertilized. A mature ovule consists of a food tissue covered by one or two future seed coats, known as integuments. Each ovule is attached by its base to the stalk (funiculus) that bears it
  2. On the maturity of the fruit only one ovule develops into a mature seed The juicy aril which is an outgrowth of the testa from micropylar end surrounds the whole seed' The fleshy and juicy aril is edible. The pericarp is hard and leathery and bears numerous echmulate tubercles on it. It becomes brownish red at maturity
  3. A fruit mainly consists of two parts: (i) The pericarp developed from the ovary wall and. (ii) The seeds developed from the ovules. In certain cases (e.g., oranges, grapes bananas, etc.) the ovary may develop into the fruit without fertilization. Such fruit is seedless and known as parthenocarpic fruit
  4. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds. . The fertilized ovule develops into a seed. How many ovules are in an embryo sac? The ovary contains one or more ovules, which in turn contain one female gametophyte, also referred to in angiosperms as the embryo sac
  5. Mature ovule forms seeds inside the ovary and ovary mature to form fruits
  6. The oldest fossils of ovules (Samenanlagen) or seeds (fertilized, mature ovules) are from the late Devonian (>365 MYBP, Runcaria even 385 MYBP). The earliest seed plants with seeds or seed-like structures are Devonian seed ferns (Lyginopteridposida, Pteridosperms). Several different types of preovules or preovule-like structures are known

SOLVED:Seeds are mature ________ ; fruits are ma

35.4: Fruit Development, Structure, and Function. Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy Fruit consists of fertilized, mature ovules (seeds) plus the ovary wall, which may be fleshy, as in an apple, or dry and hard, as in an acorn. In some fruits, the seeds are enclosed within the ovary (e.g., apples, peaches, oranges, squash and cucumbers). In others, seeds are situated on the outside of fruit tissue (e.g., corn and strawberries)

Fruit - mature ovary. Once the eggs within the ovules have been fertilized and the ovary starts to expand, it is usually called a fruit. Functions (one or more of these may exist for same fruit): dispersal of seed, nutrition for developing embryos, protection of seed. Land plant relationship - mature ovule's integuments thicken into seed coat; seed = embryo + food reserves +seed coat - fruit = mature ovary w/ seeds (ovules) inside; may or may not have modified floral structures incorporated into it. E. Fruit and Seed Dispersal-fruits have evolved to take advantage of air currents, water currents and animals for dispersal of seed At least 50 mature fruits from each tree were collected. The fruits were opened and the number of ovules was recorded. Furthermore, each ovule/seed was classified according to its condition as (a) unfertilized ovules, (b) fertilized but aborted seeds, (c) seed developed but damaged by insects, and (d) mature seeds. Aborted seeds were easily. Fruits are defined as mature ovaries originated from a coordinated development between ovules (precursors of seeds) and carpels (precursors of the fruit body). Disconnecting the ovule development from carpel development is a long-desired goal in agriculture to generate seedless fruits easier to consume. However, pollination and fertilization are required to promote hormone pathways—i.e. Ovules contain a flowering plant's female sex germs. When they are fertilized by male sex germs, they mature into seeds. It's worth thinking about the fact that ovules are future seeds. For, it means that the ovary containing the ovules must become... the future fruit

Solanum lycopersicum, tomato: life cycle, flower and fruit

Solved: Seeds are mature __________; fruits are mature

  1. A fruit results from the fertilizing and maturing of one or more flowers; the gynoecium of the flower(s) forms all or part of the fruit. Inside the ovary(ies) are one or more ovules where a megagametophyte —the female gametophyte, also called the embryo sac— produces an egg cell for the purpose of fertilization. After double fertilization, these ovules will become seeds
  2. Ovule: The integuments together with the nucellus form the ovule. Later stages include the megagametophyte and embryo. Megagametophyte = Female gametophyte: In the seed plants is retained on the sporophyte in the nucellus. In the gymnosperms, the megagametophye is present in the mature ovule (seed) where it functions as the food storag
  3. in autumn and see! Fruits called pods dry out as they mature and rip open, flinging out the seeds. Figure #1 Within the ovary, the ovules may have different arrangements within chambers called locules. Ovary: female reproductive structure of flower, which usually develops into the fruit. Ovule: egg-bearing structure of the flowe
  4. A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is : (a) Plant is dioecious and bears only pistillate flowers Both pollen and ovules mature simultaneously (d) Both anther and stigma are of equal lengths. Answer. Answer: (c) Both pollen and ovules mature simultaneously

Answered: Seeds are mature ______; fruits are bartleb

Ovule is an integumented megasporangium that encloses an embryo sac. Common type of ovule is anatropous. Parts of mature angiospermic ovule are: (1) Funicle : It is the stalk of the ovule. It is attached to placenta by funicle. In anatropous ovules the funicle is fused with the body of the ovule lengthwise to form raphe Fruits developed an early-aborted seed type with an immature, soft and edible seed coat. Seed number (-80%) and seed weight (-46%) were reduced in mature fruits. MH also hampered cell division in ovary walls, mesocarp and endocarp, thus reducing daily fruitlet growth and increasing fruit abscission

varies from ovule to ovule within the same fruit. Formation of the mature embryo sac with respect to floral development is apparently cultivar-dependent and may also be influenced by other external and internal factors. Megaspore or embryo sac development at anthesis ranges from the megaspore tetrad stage through the fully developed embryo sac As fertilized ovules develop into seeds, the ovary wall develops into the fruit. In science, the term fruit refers to a mature ovary that contains seeds. Fruit anatomy Types of dry fruits Types of fleshy fruits Fruit dispersal The form of the fruit gives clues about its dispersal Working model of SlAGL6 involvement in tomato fruit set. Mature wild type ovules express SlAGL6 in the integument (i) especially in its innermost layer the endothelium (et) that is adjacent to the embryo sac (es). These ovules express relatively high levels of SlARF5 and relatively low levels of SlKLUH The center flowers of a head do not have ovules while the outer flowers possess both male and female parts. The plants are self-incompatible and need pollen from another plant in order to set seed. Pollen transfer is accomplished by bees and beetles attracted to the flowers by nectar rewards and scent. showing mature fruits (brown) crowned. A fruit is a. A) mature ovary. B) mature ovule. C) seed plus its integuments. D) fused carpel. back 60. A. front 61. Double fertilization means that. A) flowers must be pollinated twice to yield fruits and seeds. B) every egg must receive two sperm to produce an embryo

SOLVED:Seeds are mature _____ ; fruits are matur

Fruit and Seed development start with the fertilization of the flower. A healthy flower has two distinct parts for reproduction. The male part contains the anther and pollen grains. Whereas the female part contains Stigma, style, ovary, and ovules. The anther is the male reproductive part of the flower that develops the pollen grain PowerPoint Slide 13: Segment Two - Fruits PowerPoint Slide 14: Parts of a Fruit Seeds mature ovule represent both parents Ovary wall fleshy or dry represents maternal plant Fruits consist of the fertilized and mature ovules called seeds and the ovary wall that may be fleshy as in the apple or dry and hard as in maple fruit (samara) In total, 100 mature fruits from each maternal tree were collected in October 2011. Each fruit was divided into four positions (A, B, C and D), proceeding from the distal end to the basal end of the fruit. All seeds (ovules) at each position were collected from each fruit The ovary surrounding the ovules develops into a fruit that contains one or more seeds. What is a mature ovule called? Ovule, plant structure that develops into a seed when fertilized. A mature ovule consists of a food tissue covered by one or two future seed coats, known as integuments Accessory fruits include other flower parts, in addition to ovary tissues. Ovaries may be superior or inferior, depending on the site of attachment of petals. Plant ovaries surround ovules with pericarp tissues, including exocarp, mesocarp, and endocarp. A true fruit is a ripened ovary or carpel, which contains seeds

Parthenocarpy is the process which produces fruits from unfertilised ovules in plants. Unfertilised ovules develop into fruits prior to fertilisation. Such fruits do not contain seeds. However, parthenogenesis can be described as a process in which unfertilised ovum develops into an individual (virgin birth) without fertilisation Phaseolus coccineus typically has six linearly arranged ovules per ovary. The three ovules near the stylar end of the fruit (positions one, two, and three) are more likely to produce mature seeds, to produce heavier seeds, and to produce more vigorous progeny than the ovules in positions near the peduncular/basal end of the fruit (ovule positions four, five, and six). We conducted a series of. the fruit whereas the ovules become the seeds enclosed within the fruit. Seeds are found both in gymnosperms and angiosperms. Let us value of fruits to humans.FRUITS:A fruit is the mature ovary of a flower containing the fertilized ovules. Ethylene, a plant hormone, promotes the ripening of fruit. Seeds are fertilized/ripened/mature ovules (that are found within ovaries), and the seed coat is made of the maternal tissue called integuments. The ovary is part of the flower that contains the ovules. So in fruits, like watermelon, the rind and what we eat is all ovary, and the seeds are the black things inside (to confuse matters, the.

In the present work, we study the ovule, seed, and fruit development in six Bulbostylis species in order to characterize the genus in a comparative approach and to identify the characteristics that can be used in taxonomy and phylogeny. Flowers and fruits at different developmental stages were analyzed using LM and SEM after processing according to standard techniques looking at in seeds and fruits. Also, a fruit key is available as a separate handout. Remember that we will be considering only a small fraction of the structural diversity present among seeds of gymnosperms and the seeds and fruits of angiosperms. Seeds Gymnosperms Obtain a prepared slide of an immature pine ovule and of a mature pine ovule. As ovules mature into seeds, the ovary develops into a fruit, i.e., the transformation of ovules into seeds and ovary into fruit proceeds simultaneously. The wall of the ovary develops into the wall of fruit called pericarp. The fruits may be fleshy as in guava, orange, mango, etc., or may be dry, as in groundnut, and mustard, etc

Fruit development - Vanderbilt Universit

fruit

The ovules after fertilization develop into the seeds. Food Storage in the Seed. As the fruit matures, the seeds also mature. Fruits may be classified as simple, aggregate, multiple, or accessory, depending on their origin. If the fruit develops from a single carpel or fused carpels of a single ovary, it is known as a simple fruit, as seen. It is often described as a fertilised ovule. Seeds are formed inside fruits. A seed typically consists of seed coat(s), cotyledon(s) and an embryo axis. The cotyledons of the embryo are simple structures, generally thick and swollen due to storage of food reserves (as in legumes). Mature seeds may be non-albuminous or albuminous. Non-Albuminous.

Seeds fruits

Fruits Flashcards Quizle

Solved: Seeds are mature _____; fruits are mature ______

ApocarpousGynoecium-1

Seeds are mature ______; fruits are mature _______

Reproduction

Fruits are classified according to whether they develop

fruit, matured ovary of the pistil of a flower, containing the seed seed, fertilized and ripened ovule, consisting of the plant embryo, varying amounts of stored food material, and a protective outer seed coat. Seeds are frequently confused with the fruit enclosing them in flowering plants, especially in grains and nuts fertilization initiates the development of the ovary into a mature avocado fruit, and the ovule into the seed, inside of which is the embryo. This embryo can then develop into the young seedling avocado tree of the next generation. The seed provides plant growth regulators necessary for fruit set and fruit development a. The mature embryo has an axis of two cotyledons in dicots and one cotyledon in monocot. The upper end of the embryo axis is called the plumule and the lower end is called the radicle. Question 19. All fruits are produced from the ovary of a fertilized flower. Write an exception to this statement and explain. Answer Fruits are seed coverings. They are mature plant ovaries that cover mature plant ovules, more commonly called seeds. Some fruits, called simple fruits, come from flowers that have only one ovary and, therefore, have a simple round shape with one or more seeds. For example, peaches and tomatoes come from flowers with only one ovary

Development Seeds and Fruit Biology for Majors I

Fruits. An unfertilized ovary, as shown in Figure \(\PageIndex{6}\), contains one or more developing ovules produced in compartments called locules.Each ovule is attached to a nutritional region of the ovary called the placenta by a strand of tissue called the funiculus.The sporophyte supports the developing ovule through this tissue pathway In contrast, some species of temperate Quercus take about 18 months from flowering to production of mature seeds. In most species fertilization of one or more ovules must precede fruit formation. In a few species, however, fruits are set and mature without seed development and without fertilization of an egg

Biology M4 Flowers to fruits and seeds

fruit Definition, Description, Types, Examples, & Facts

'Afourer' ovary presents 10 fused carpels with up to 5 ovules per carpel. In our experiments, naturally cross-pollinated mature fruit recorded 4 seeds per fruit, on average, ranging from 1 to 13. Thus, mature fruit showed typical mature fully developed seeds (Fig. 1A and B) and unfertilized ovules (Fig. 1C) Dehiscent fruits are those that are dehisced (open by rupturing) when they mature. Dehiscent fruits are of following type-Follicle is a dry dehiscent fruit developed from a single carpel and on maturity, it ruptures from a single place and forms only a single suture. For Ex- Larkspu Each fruit contains from one to ten ovules, with three to five being most common. A variable number of the ovules mature into large brown seeds (with different numbers of seeds appearing in each fruit on the same tree, usually between one and four). The fruits are the sweetest when soft and orange

Chapter 38 Angiosperm Reproduction and Biotechnology

The development of fruits without fertilisation of the ovary, is called (a) parthenogenesis (b) parthenocarpy (c) agamospermy (d) apomixis. Answer. pollen matures before maturity of ovule. (b) ovules mature before maturity of pollen. (c) both pollen and ovules mature simultaneously. (d) both anther and stigma are of equal lengths. Answer The ovary contains ovules, which develop into seeds upon fertilization. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds. What is a mature ovule with a fertilized egg called? After fertilization occurs, each ovule develops into a seed. • Each seed contains a tiny, undeveloped plant called an embryo The number of flowers that then mature into olives is dependent on a number of factors. but here are two main points: 1) It takes a great deal of energy to develop the pistil (or ovule - think of this like the human ovum). if the flowers are pollinated, fruit may fail to form if sprayed with an abscission agent. These are sprays that. It is specifically that particular part of the entire pistil that tends to hold all the ovules. The location of the ovary happens to be below or above the connection point and it is connected to the sepals and the petals as well. To be precise, the mature ovary forms the fruit or seeds that tend to grow in the plant

Taenia Tapeworm Scolex Prepared Microscope SlideSeed Plants - Biology 211 with Boury at Iowa State

Seed and Fruit Development Biology 343 - Plants and Peopl

In pomegranate, having viable, well-developed ovules at the time of pollen tube growth is a prerequisite to the formation of arils in the mature fruit. Fruit size in pomegranate is clearly related to the number of arils within a fruit (Wetzstein et al., 2011b). The lack of developed ovules commonly observed in lateral flowers and in smaller. Mature phloem is a live tissue,whereas xylem is dead when mature.Explain why it is necessary for phloem to be alive to be functional,whereas xylem can function as dead tissue: Help math. recipe calls for 4 pounds of fruit. You have 60 ounces of fruit. a. Do you have as much fruit as you need? b 38) Among plants known as legumes (beans, peas, alfalfa, clover, etc.) the seeds are contained in a fruit that is itself called a legume, better known as a pod. Upon opening such pods, it is commonly observed that some ovules have become mature seeds, whereas other ovules have not. Thus, which of the following statements is (are) true algorithm (Mićić et al., 2009) of ovules for fertilization in inflorescence and opened a question of border number of set ovules as factors of fruit retaining in the trees in intensive orchard management systems (Djurić and Mićić, 2012): rootstock greatly modifies vigour and there is great pressure of agrochemicals through mineral nutrition

Reproductive Plant Part

contains ovules so small as to be scarcely visible without a magnifying glass. Fruit and seeds are present in mini- ature form in the flower as ovary and ovules, hence the importance of the flower in the development of the seed. Each female flower in the corn plant has an ovary containing a single ovule, and the mature grain, or fruit, is singl 'Unshu'.ndarin. The process of eabryo sac formation varies from ovule to ovule within the same fruit. Foraation of the mature embryo sac with respect to floral developaent is apparently c~tivar-dependent and may also be influenced by other external and internal factors The tissues of the ovule surrounding the embryo form the seed, while the tissues of the ovary, sometimes with some of the surrounding structures, form the fruit. The fruit is the ripened ovary (ovaries) with the enclosed seeds, if any, and in some cases may include other parts of the parent flower Ovule development In Orchidaceae, one of the unique features of ovule devel - opment is that mature ovules are usually not present at the time of pollination (Wirth and Withner 1959). The ovule development triggered by a successful pollination usually takes several weeks to complete (Arditti 1992, Yeung and Law 1997). In G. elata and G.