Flower Structure of soybeans

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Slide 1: 

Soybean Floral Biology Floral Biology of Soybean Glycine max

Slide 2: 

Soybean Floral Biology Field view of Soybean

Slide 3: 

Soybean Floral Biology The Plant

Slide 4: 

Soybean Floral Biology The Plant

Slide 5: 

Soybean Floral Biology The cultivated soybean bears flowers in clusters of 3 to 15 blossoms in the axil of a branch. Many flowers are shed without forming pods. Inflorescence

Slide 6: 

Soybean Floral Biology Inflorescence Older flowers (fertilized) Younger flowers

Slide 7: 

Soybean Floral Biology Inflorescence The cultivated soybean bears flowers in the axil of a branch.

Slide 8: 

Soybean Floral Biology The cultivated soybean bears flowers in the axil of a branch. Inflorescence Close-up

Slide 9: 

The cultivated soybean bears flowers in the axil of a branch. Inflorescence Soybean Floral Biology Close-up

Slide 10: 

Soybean Floral Biology Young flower buds Calyx Corolla Calyx Corolla Calyx Corolla Sepals Flowers of soybean are very small, about 4-6mm long. It is very difficult to emasculate them because of small size and delicate attachment on the stem

Slide 11: 

Soybean Floral Biology Calyx Gamosepalous 5 sepals fused at the base Fertilized ovary (showing developing pod)

Slide 12: 

Soybean Floral Biology The corolla consists of five petals, which enclose a pistil and ten stamens. Nine stamens develop in a tube around the pistil; the tenth stamen remains free. Standard (folded & unfolded) Wing Keel Sepals attached to standard

Slide 13: 

Soybean Floral Biology Different views of reproductive parts Free stamen 9 fused stamens Calyx Calyx Calyx Calyx 9 fused stamens anthers Reproductive organs remain enclosed in keels

Slide 14: 

Soybean Floral Biology Gynoecium removed from the flower GYNOECIUM (Before fertilization) 1.5 mm length

Slide 15: 

Soybean Floral Biology Gynoecium removed from the flower GYNOECIUM (After fertilization) Stigma Style Ovary

Slide 16: 

Soybean Floral Biology Variation for hairiness of pods

Slide 17: 

Soybean Floral Biology Various stages of pod development After fertilization, still enclosed in keels (dried)

Slide 18: 

Soybean Floral Biology Developing Grain CLOSE-UP

Slide 19: 

Soybean Floral Biology Developing Grains (later stage) CLOSE-UP

Slide 20: 

Soybean Floral Biology Fruiting Pattern on the Plant

Slide 21: 

Soybean Floral Biology Fruiting on the Plant Close-up

Slide 22: 

Soybean Floral Biology Hairy Pods Fruiting on the Plant Close-up

Slide 23: 

Soybean Floral Biology Mature Pod

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