双季机械直播早籼稻品种的丰产性和稳产性

陈丽明,周燕芝,谭义青,吴自明,谭雪明,曾勇军,石庆华,潘晓华,曾研华

High and Stable Yield of Early Indica Rice Varieties with Double-Season Mechanical Direct Seeding

LiMing CHEN,YanZhi ZHOU,YiQing TAN,ZiMing WU,XueMing TAN,YongJun ZENG,QingHua SHI,XiaoHua PAN,YanHua ZENG

表7 不同产量类型直播早稻产量构成因素的相关性

Table 7 Correlation of yield components of direct seeding early rice with different yield types

产量类型 Type 有效穗 Panicle number 每穗粒数 Grains per panicle 总颖花量 Total spikelet 结实率 Filled grain percentage 千粒重 1000-grain percentage 日产量 Daily yield 高产 HY 0.993** 0.990** 0.993** -0.656 -0.577 0.992** 中产 MY 0.911** 0.867** 0.942** 0.062 0.041 0.805** 低产 LY 0.893** 0.921** 0.937** -0.047 0.077 0.907**