摘要
为明确海岛棉产量性状与早熟性状之间的相互关系,以海岛棉品种新海3号和吉扎82为亲本构建的181个F2∶3家系为材料,测定其产量性状和早熟性状,并利用统计软件进行典型相关和通径分析。结果表明:各性状指标均符合正态分布,表明产量和早熟性状都是由微效多基因控制,呈现数量性状的遗传特点;产量性状组的典型变量U1与早熟性状组的典型变量V1的相关系数为0.548,达极显著水平;早熟性状的典型变量主要由生育期决定,产量性状的典型变量主要由单株皮棉产量决定;早熟性状对单株皮棉产量的通径分析中,直接通径系数均为正值,表明5个早熟性状对单株皮棉产量均有直接的正向作用,说明早熟性状达到最优化时可以提高产量;从净效应值可知,对单株皮棉产量的正向效应大小依次是苗蕾期、果枝始节和生育期。
To study the relationship between earliness and yield traits of sea-island cotton,181 F2： 3 family lines built from sea-island cotton varieties Xinhai 3 and Jiza 82 were used as materials to measure the earliness and yield traits,statistical software was used for typical correlation and path analysis. The results showed that indicators of earliness and yield traits were in line with the normal distribution and were controlled by multiple gene,they were quantitative characters heredity traits. The correlation coefficient between the typical variable U1 in the yield traits group and the typical variable V1 in the earliness traits group was 0. 548,which reached extremely significant level; The typical variables of earliness traits were mainly determined by the growth durations and the typical variable of yield traits were mainly determined by the lint yield; According to the path analysis,all of the 5 earliness traits had direct positive effect on the lint yield. So the yield might be increased when the earliness traits were optimized; The positive effects on lint yield,in order of importance,were Miaolei period,the nod of first fruiting branch and growth durations.
作者
张西英
刘江娜
张庭军
赵战胜
ZHANG Xiying;LIU Jiangna;ZHANG Tingjun;ZHAO Zhansheng(Institute of Agricultural Sciences of the Sixth Division of Xinjiang,Wujiaqu 831300,China)
出处
《浙江农业学报》
CSCD
北大核心
2018年第8期1295-1302,共8页
Acta Agriculturae Zhejiangensis
基金
国家科技支撑计划(2014BAD03B01)
关键词
海岛棉
产量性状
早熟性状
典型相关
sea-island cotton
yield traits
earliness traits
canonical correlation
