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总结了两系杂交稻新组合深两优1813的高产栽培技术,并通过对百亩片的调查取样,进行了深两优1813产量结构的相关性分析。结果表明:在有效穗、每穗实粒数和千粒重三个产量构成因素中,有效穗与产量呈显著正相关,其次每穗实粒数对产量的贡献也较大;有效穗数和每穗实粒数呈显著负相关,表明穗数与实粒数之间矛盾较为尖锐,千粒重和有效穗、每穗实粒数呈微弱正相关。最后提出了深两优1813在超高产栽培下使单产达15 t/hm2的目标产量,产量结构应达到以下标准:有效穗290万穗/hm2左右,每穗实粒数220粒左右,结实率90%以上,千粒重27.5 g。
The high-yielding cultivation techniques of Shenliangyou 1813, a new two-line hybrid rice combination, were summarized. The yield and quality of Shenliangyou 1813 were analyzed through the sampling and sampling of 100 mu. The results showed that there was a significant positive correlation between effective panicle and yield, and secondly, the contribution of actual grain per panicle to yield was significant. Among the three components of effective panicles, solid grains per panicle and 1000-grain weight, There was a significant negative correlation between the number of real grains, indicating that the contradiction between the number of spikes and the number of grains was sharp. There was a weak positive correlation between grain weight per panicle and number of effective spikes per panicle. Finally, we proposed the target yield of Shenliangyou 1813 under high yielding cultivation, which can achieve a yield of 15 t / hm2. The yield structure should meet the following criteria: the effective panicle is about 2.9 million spike / hm2, the number of solid grains per spike is about 220, the seed setting rate More than 90%, grain weight 27.5 g.