论文部分内容阅读
在蔬菜杂交制种过程中,经常遇到两个亲本的花期不能相遇,种子发育不饱满以及坏天气下授粉不良等问题。另外,十字花科蔬菜还有种子成熟不一致,出现裂荚损失的问题,出现上述问题,若不解决,势必影响蔬菜制种的产量和质量。 1 杂交亲本花期不遇的对策 1.1 调整播种期、定植期:将晚开花亲本,按花期相差天数提前相同天数播种育苗或采用保护栽培设施促使其加速生长,使两
In the hybridization of vegetables in the process of planting, often encounter two parents can not meet the flowering, seed development is not full and polluting poor bad weather and other issues. In addition, cruciferous vegetables and seeds mature inconsistencies, the emergence of split pod loss problems, the above problems, if not resolved, is bound to affect the yield and quality of vegetable seed production. 1 hybrid parents flowering measures 1.1 adjust the sowing period, planting: the late flowering parents, according to the number of days of flowering days ahead of the same number of days to sow seedlings or use of protective culture facilities to promote its accelerated growth, so that the two