论文部分内容阅读
吉８９—４５是我所以吉粳６０号为母本，东北１２５为父本杂交育成的水稻新品种。采用正交旋转组合设计方法，对产量构成因素与产量的关系进行了相关和通径分析，结果表明：单位面积稳数与产量呈极显著正相关，直接通径系数达１．１０４２，其次是每穗粒数，直接通径系数为０．７０１７。而饱满粒率和千粒重对产量的作用不大。因此，在栽培措施上保证穗数的前提下，力争大穗。对吉８９—４５产量构成因素影响最大的栽培措施首先是施氮量，其次是每穴插秧苗数，再次是穗肥比例。
Kyrgyzstan 89-45 is so I JiJing 60 as the female parent, northeast 125 for the male parent hybrid rice breeding new varieties. Orthogonal rotation combined design method was used to analyze the relationship between yield components and yield. The results showed that there was a significant positive correlation between the yield per unit area and yield, the direct path coefficient was 1.1042, followed by The number of grains per spike, direct path coefficient was 0.7017. The full grain rate and grain weight of little effect on the yield. Therefore, cultivation measures to ensure the number of ears under the premise, and strive to big ears. The most influential cultivation measures for the yield components of Ji 89-45 are nitrogen application rate, followed by the number of inserted seedlings per hole and the ratio of panicle fertilizer again.