What are the responses of soybean growth and development to light?
Soybean is a short-day crop, with a daylength range of 9-18 hours. The shorter the light, the more it promotes flower bud differentiation and advances flowering and maturity. When soybean grows its first compound leaf, it begins to respond to light. Generally, seedlings can complete the light stage after 5-12 days of short-day conditions. The appearance of flower calyx primordia on the plant marks the completion of the light stage. Due to long-term adaptation to light conditions in different regions, the short-day response of soybean varies considerably. Southern soybean varieties have a stronger short-day response, while northern soybean varieties are insensitive to daylength, so special attention should be paid when introducing varieties.
Soybean is a short-day crop, with a daylength range of 9-18 hours. The shorter the light, the more it promotes flower bud differentiation and advances flowering and maturity. When soybean grows its first compound leaf, it begins to respond to light. Generally, seedlings can complete the light stage after 5-12 days of short-day conditions. The appearance of flower calyx primordia on the plant marks the completion of the light stage.
Due to long-term adaptation to light conditions in different regions, the short-day response of soybean varies considerably. Southern soybean varieties have a stronger short-day response, while northern soybean varieties are insensitive to daylength, so special attention should be paid when introducing varieties.