The stage controlling seed number per ear during ear differentiation, safe booting date and safe heading date of wheat in Sichuan were discussed.
本文还讨论了四川小麦幼穗分化过程中引致穗粒数变异的时期，以及安全孕穗、抽穗期。
Temperature influenced preharvest sprouting to some extent. The inhibiting substance in seed coat and ear was also discussed.
本文还讨论了颖片、芒中的抑制物质及温度对穗发芽的影响。
The main mutant-types induced by EMS were ear visibles, seed visibles, stem visibles, leaf character mutation, fertility mutation and mature period mutation.
EMS诱变产生的主要突变类型有：穗部形态突变、籽粒形态突变、茎秆形态突变、叶片性状突变、育性突变及熟期突变等。
Methods Experiment group was treated by electrotherapy combined with pressing seed method for stimulating ear point group, control group was treated by methadone maintenance therapy.
方法实验组用电针结合耳压法，对照组用美沙酮维持疗法。
The effect of the formation process of the ear-stem vascular system on the differentiation and development of the spikelets, florets and seed set was also discussed.
本文还就穗-茎维管系统的形成过程对小穗小花分化、结实的可能影响作了讨论。
The seed number per ear was closely correlated with the first and secondary panicle branches.
每穗粒数与一、二次枝梗数密切相关。
The results showed that ear length, the number of the spikelets and the florets, and the 1000-seed weight were badly influenced by watering and fertilizing in different periods after the boot stage.
结果表明，羊草孕穗以后的各生长发育时期，补给水肥对其穗长、小穗数、小花数和千粒重均有不良影响。
The results showed that ear length, the number of the spikelets and the florets, and the 1000-seed weight were badly influenced by watering and fertilizing in different periods after the boot stage.
结果表明，羊草孕穗以后的各生长发育时期，补给水肥对其穗长、小穗数、小花数和千粒重均有不良影响。
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