隆晶优534的产量构成分析及高产栽培技术

Yield Components and High-yielding Cultivation Techniques of Longjingyou 534

为明确隆晶优534作华南早籼稻栽培的产量结构特征,根据隆晶优534参加华南早籼稻区试结果,分析其产量结构特点。结果表明,对产量的贡献率,每穗粒数为82.5%,每平方米穗数为8.5%,千粒重为8.4%,结实率为-4.6%。隆晶优534作华南早籼稻高产栽培要在一定穗数基础上主攻大穗,同时注意协调每穗粒数与穗数、结实率的矛盾。并总结其主要高产栽培策略。

For elucidating the yield chatacters,yield components of Longjingyou 534 were analyzed based on early season indica rice varieties regional test of south China.Result showed that the contribution rate of spikelets per panicle to yield was 82.5%,panicle number per unit was 8.5%,1000-grain weight was 8.4%and seed setting rate was-4.6%.To realize high production of Longjingyou 534,forming large panicle with adequate panicle number is the main target,as well as coordination of the contradiction between panicle number per unit and spikelets number per panicle,seed setting rate.The high-yielding cultivation techniques of Longjingyou 534 were summarized.