籼粳亚种间杂交稻作单季晚稻的高产高效技术分析

摘要

为进一步明确籼粳亚种间杂交水稻作单季晚稻栽培的高产高效技术途径,利用台州境内6个县(市、区)7年间222组籼粳亚种间杂交水稻作单季晚稻栽培的考查数据,分析了不同产量水平下,籼粳亚种间杂交水稻的穗、粒、重结构,利用相关、回归及通径分析的方法,研究提出了籼粳亚种间杂交水稻作单季晚稻栽培的高产高效技术途径,即在保证有一定有效穗数的基础上,主攻大穗,适当兼顾粒重.%The high yield and high efficiency cultivation technique of lndica-japonica intersubspecific hybrid rice as single-cropping late rice was studied based on the data of 222 groups in six counties of Taizhou during 7 years. The high yield and high efficiency cultivation technique was put forward according to correlation, regression and path analysis on the structure of springe, grain and weight of lndica-japonica intersubspecies hybrid rice under different yield level. And the main techniques obtained was ensuring the effective panicle number firstly, then mainly developing the large panicles and giving consideration to the grain weight.