论文部分内容阅读
根据小区试验和制种生产实践,基本明确了杂交粳稻常优1号制种单产3750kg hm2穗粒结构指标,总结出了达到该产量水平应选择适宜播栽期;确定株行距和行比,保证足够基本苗;科学合理栽培;调节生育进程,确保父母本花期相遇;应用辅助授粉,提高异交结实率,最终提高产量等一系列制种高产技术措施。
According to the plot experiment and seed production practice, it was basically clear that the grain yield of 3750kg hm2 per hectare of hybrid japonica rice Changyou 1 was consistent with the grain sowing date. The suitable sowing date should be selected to achieve the yield level. Enough basic seedlings; scientific and reasonable cultivation; adjust the fertility process to ensure that the parents of the flowering meet; application of secondary pollination to improve the rate of outcrossed seed set, and ultimately increase production and a series of high yielding technical measures.