Canonical correlation and path analysis on earliness and yield traits of sea-island cotton

doi:10.3969/j.issn.1004-1524.2018.08.04

›› 2018, Vol. 30 ›› Issue (8): 1295-1302.DOI: 10.3969/j.issn.1004-1524.2018.08.04

• Crop Science • Previous Articles Next Articles

Canonical correlation and path analysis on earliness and yield traits of sea-island cotton

ZHANG Xiying, LIU Jiangna, ZHANG Tingjun, ZHAO Zhansheng^*

Institute of Agricultural Sciences of the Sixth Division of Xinjiang, Wujiaqu 831300, China

Received:2017-09-13 Online:2018-08-25 Published:2018-08-28

Abstract

Abstract: To study the relationship between earliness and yield traits of sea-island cotton, 181 F_{2: 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.

Key words: sea-island cotton, yield traits, earliness traits, canonical correlation

CLC Number:

S562

ZHANG Xiying, LIU Jiangna, ZHANG Tingjun, ZHAO Zhansheng. Canonical correlation and path analysis on earliness and yield traits of sea-island cotton[J]. , 2018, 30(8): 1295-1302.

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Canonical correlation and path analysis on earliness and yield traits of sea-island cotton

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