4-Concept of fruit bud formation.ppt
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This document discusses different types of buds based on function, activity, position, and morphology. Buds are undeveloped stems that contain embryonic leaves, lateral buds, or flower parts. Buds can be classified as vegetative, reproductive, simple, mixed, or compound based on their function. They can also be classified as dormant, growing, apical/terminal, lateral/axillary, or adventitious based on their activity and position. Morphologically, buds can be scaly/covered, hairy, or naked. Examples are provided for each bud type.
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There are two main types of fruits - simple fruits which develop from a single ovary, and aggregate/multiple fruits which develop from multiple ovaries or flowers. Simple fruits can be fleshy like berries, drupes, and pomes, or dry like legumes, follicles, capsules, achenes, and nuts. Fleshy fruits like berries become soft and juicy, while a drupe has a hard stone or pit surrounding its seed. A pome is an accessory fruit with multiple carpels fused together. Dry fruits either open at maturity to release seeds like legumes and follicles, or stay closed like achenes and nuts.
Biology Lesson 3.1
Flowers are the reproductive structures of angiosperm plants that contain male and female organs. They are found at the end of stems, called pedicels, and have four main parts: pistils, which are the female organs containing ovaries, styles and stigmas; stamens, which are the male organs containing filaments and pollen-producing anthers; sepals, which are green structures protecting the developing bud; and petals, which are colorful structures that attract pollinators. Flowers can be complete or incomplete, perfect or imperfect, depending on whether they contain all flower parts or are missing some parts. They can also be arranged as single flowers or in clusters called inflorescences.
Structure and development of fruit
1. Fruit develops from the ovary of flowering plants after fertilization. It consists of an outer protective layer called the pericarp that surrounds the seeds.
2. The pericarp is made up of three layers - the epicarp, mesocarp and endocarp. Fleshy fruits like berries and drupes have a fleshy mesocarp that forms the edible portion.
3. Fruits are classified as simple, aggregate, or composite. Simple fruits develop from one flower, aggregate fruits from one flower with multiple ovaries, and composite fruits from an inflorescence where multiple flowers fuse together.
Plant morphology
This document discusses the morphology of plants. It describes the three basic plant organs as roots, stems, and leaves. For each organ, it outlines their characteristics, functions, types and modifications. For roots, it discusses the root cap, zones of a root, taproot vs fibrous root systems, and storage and support root modifications. For stems, it covers nodes, internodes, buds and their types, as well as underground, sub-aerial and aerial stem modifications. Finally, it outlines leaf structure including petioles, blades, epidermis, stomata and mesophyll, and describes buds and their locations.
BOTANY POWERPOINT.pptxFLOWER, FRUIT, SEEDS
The document discusses plant reproduction and fruit development. It describes the main parts of flowers - sepals, petals, stamens, and carpels. It then explains different types of inflorescences, or flower arrangements, and methods of plant reproduction including sexual reproduction through pollination and fertilization, as well as asexual reproduction methods like cloning and vegetative propagation. Finally, it defines different types of fruits like simple fruits, aggregate fruits, and accessory fruits, describing their structures and key examples.
Morphology of flowering plants part2
Morphology of flowering plants part 2 for Std 11th NEET
Infloresence, Flower, fruit , seed and angiosperm families, floral formula and floral diagram
The Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs.
In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to bring beauty to their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.
In this lesson you will learn about :
1) Flower - Definition & Functions
2) Floral Symmetry
3) Pedicellate & Sessile Flowers
4) Insertion of Floral Leaves on the Thalamus
5) Parts of a Flower
6) Some Important Terms related to Flowers
7) Floral Whorls - Calyx, Corolla, Androecium and Gynoecium
8) Placentation
9) Inflorescenece
I hope this document is helpful to you. Please share the document with your friends if you think this will benefit them. Get ready for the next lesson. Thanks.
8-Pollination & Fecundation.ppt
This document provides information on pollination and fruit setting in plants. It discusses flower structure and types of flowers, including complete, incomplete, perfect, imperfect and other classifications. It describes pollen dehiscence, pistil receptivity, self-pollination, cross-pollination, fecundation, and the prerequisites and vegetative responses to successful pollination and fruit setting. Key terms defined include peduncle, receptacle, pollination, fertilization, and different types of fruit drop.
Plants organ system
Plants have several major organ systems that allow them to survive and reproduce. These include roots that absorb water and minerals, stems that provide structure and transport nutrients, leaves which perform photosynthesis, and reproductive structures like flowers and seeds. Plant tissues include meristematic tissues that facilitate growth and permanent tissues that carry out specialized functions. Together these organ systems and tissues enable key plant processes and allow plants to sustain life on Earth.
Morphology of fruits
This presentation is about fruit and its types. This presentation may be helpful to UG and PG students.
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- 1. Week 3 Lecture 2 Flower Bud Initiation & Development
- 2. BUD: Buds are undeveloped and un-elongated stems composed of a very short axis of meristem cells from which arise embryonic leaves, lateral buds and some time only flower parts.
- 3. Bud Classification: 1- On the basis of function Vegetative Buds Reproductive buds Simple buds Mixed buds Compound buds
- 4. 2- On the basis of activity 1. Dormant bud 2. Growing bud
- 5. 3- On the basis of position 1. Apical or terminal buds 2. Lateral or axillary buds 3. Adventitious buds
- 6. On the basis of Morphology • Scaly bud/Covered bud • Hairy bud • Naked bud
- 7. Vegetative bud: Those buds which bear unfolded or unexpanded leaves together with primodium of vegetative buds Flower bud: Those buds in which bear unfolded or unexpanded parts contain only flower parts. They may contain brackets, hairs and are called fruit bud Simple bud: Those buds which contains either flowers parts or vegetative tissues. Example: Cherry, Peach, Plum etc.
- 8. Mixed bud: Those buds which contain flower parts as well ad vegetative parts. Example: Apple, Pear, Quince etc. Compound buds: Those buds which contain two or more vegetative buds or mixed buds. Example: Grapes. In grapes both branches and leaves on single bud some time leaves as well as tendrils and fruit bunch. Mixed Flower Buds in pear
- 9. Apical or Terminal bud: Those buds which develop at the apex of long shoots or spurs; Example: Mango, Banana, Walnut, Letchi, Loquat, Apple, Pear etc. Lateral or Axillary bud: Those buds which develop at the axil of leaves or on the nodes of branches. Example: Plum, Cherry, Citrus, Date palm, Mulberry etc.
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- 11. 1. Growing bud The sprouted bud which started to grow is called as growing bud 1. Scaly bud/ covered . Covered with scale or leaves to protect the embryonic 2. Naked not covered with scales 3. Hairy . Covered with hairs