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根据育种观察,在济南地区气候条件下,夏大豆杂交在早晨5～6点能采到有用花粉,但在自然条件下花粉生活力保持时间很短,降低了杂交成荚率.同时,由于在自然条件下花粉生活力下降快,使花期不遇的亲本更无法杂交,影响了亲本材料的利用.以往对不同熟期的亲本杂交多采用分期播种或短光照处理的办法,增加了田间工作量和劳动强度.为了解夏大豆花粉生活力变化规律,探索延长花粉保存期的方法,以扩大杂
According to the breeding observation, under the climate conditions in Jinan, summer soybean hybrid can be harvested from 5 to 6 o’clock in the morning, but pollen viability maintained for a short time under natural conditions, reducing the rate of hybridization into pods. At the same time, Under natural conditions, pollen viability decreased rapidly, so that the infancy of the flowering period of the parents even more unable to cross, affecting the utilization of the parent material.In the past for different maturity of the parental hybrids using more sowing or short light treatment methods, increasing the field workload and Labor intensity in order to understand the law of summer soybean pollen viability and explore ways to extend the pollen preservation period,