Floral biology
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This document discusses the structures and characteristics of flowers from three plant families: Cruciferae, Euforbiaceae, and Compositeae. It describes the parts of typical flowers from each family and provides examples of crop plants from each, including mustard and radish from Cruciferae, castor from Euforbiaceae, and sunflower from Compositeae. Diagrams are included to illustrate flower structures like pistils, stamens, and different types of inflorescences. The pollination process and floral formulas are also summarized for some of the crop plants.
Floral biology
- 1. AN PERSENTATION ON FLOWER VIVEK SINGH DEVA RAM 12MSSDCI020 12MSSDCI049 Dept of GPB &SST Allahabad school of agriculture S.H.I.A.T.S. Allahabad (India )
- 3. MUSTARD FLOWER Flower Flower is a reproductive parts of the plant. With the maturation of age , the plant bears yellowish flowers. Flowers grow on young branches in a special way. This branch is called peduncle and the arrangement is called inflorescence Flower Structure.flv
- 4. Flower part Stigma: The stigma is the sticky surface where pollen lands and is collected to fertilize the ovules. Style: The style is part of the pistil and holds the stigma above the ovary. Filament: The filament provides support for the anther in the stamen Ovule: The ovules contain egg cells and become the seeds after pollination. Ovary: The ovary houses the ovules and will become the fruit after pollination Calyx: The whorl of sepals on the outside of a flower is referred to as the calyx. Corolla: The whorl of petals is called the corolla.
- 5. Flower part Anther: The anther is part of the stamen and produces the pollen Microsporangium: The microsprangium is located in the anther and produces microspores, which become male gametophytes. These male gametophytes will later be used in forming the pollen grains Stamen: The stamen is the male reproductive organ in the plant. It consists of the anther and filament.
- 6. Cruciferae Flower structure Actinomorphic Bisexual Calyx 2+2 Corolla 4 Androecium 2+4 Superior ovary 2
- 8. Some crop of cruciferae radish mustard
- 10. Male Flower - Calyx membranous, splitting into 3-5 valvate segments, stamens vary many filaments crowded, variously connate or in branching clusters, anther cells distinct, distant, sub globose, divergent, pistillode . Female flowers Calyx spathaceous, caducous, ovary 3 celled, styles short or long, spreading. Often very large, entire 2-fid or 3- partite, feathery or papillose; cells 1 ovuled. Male flowers Female flowers
- 11. Mostly male spike Fruits clustered only at the upper one third of the spike. The remaining lower two-third is occupied by male flowers, which wither and thus give an empty look. The local varieties of Castor in Telangana region of A.P and also many other states are of this type. Mostly female spike Pistillate flowers appears from the base of the spike covering the entire length with fruits. The staminate flowers are clustered at the base of the peduncle and some times dispersed in female flowers at the lower end only.
- 12. Floral digram
- 13. SOME CROP OF EUFORBIACEAE CASTER TERMIND
- 14. Composite family most exam. Crop sunflower Family Compositeae
- 15. Flower part
- 16. Flower part The difference between the ray and disk flowers, and see how the achiness (fruits, explained below) are neatly stacked atop the low, conical receptacle. The achiness in the middle, at the very top of the receptacle, are white because they are still immature. Later they will turn black
- 17. Pollination & fertilization in sunflower
- 18. Floral diagram & floral formula
- 19. Some crop of composite Targets erect - marigold Lactic sativa - Lettuce