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在杂交粳稻组合常优5号制种中,采用10行水稻制种专用插秧机,研究分析了母本不同播种量育秧对制种产量结构及产量的影响。结果表明:不同播种量对母本的秧苗素质有明显的影响,播种量为55 g/盘处理有利于壮秧,提高秧苗移栽后的活棵和分蘖、成穗;55 g/盘播种量处理在有效穗数、每穗实粒数和千粒重这3项产量结构中,有效穗数和千粒重与其他处理一致,但每穗实粒数极显著高于其他处理,最终制种产量达到3.12 t/hm~2,显著高于其他处理。
In the hybrid japonica rice combination Changyou 5, 10 rice transplanting rice transplanters were used to study the effects of seedling transplanting with different seeding rates on seed yield structure and yield. The results showed that different sowing rates had significant effects on the quality of seedlings of female parent. The sowing rate of 55 g / dish was good for strong seedling, and the number of live trees, In terms of effective spikes, spikelets per panicle and 1000-grain weight, the effective panicles and 1000-grain weight were the same as those of other treatments, but the grain number per panicle was significantly higher than that of other treatments, and the final seed production reached 3.12 t / hm ~ 2, significantly higher than other treatments.