Correlation Analysis of Grain Yield and Ear Characters of Maize during Seedling Stage with Different Water Supply

doi:10.7668/hbnxb.2008.01.027

Abstract

Abstract: Pot experiment was carried out with 5 maize hybrids under three levels of water supply treatment(lightdrought stress, modest drought stress and CK)during seedling stage in a rain shelter. And normal water treatment was re2covered in the jointing stage. Correlation and path analysis on main ear characters and grain yield were studied in the har2vest stage.The result indicated:Under normal water condition 1002grain weight was dominant in affectinggrain yield.Un2der light water drought stress level the effect on grain yield of kernel length and produced grain percentage were impor2tant, path analysis indicated that the most contribution to the grain yield was corncob width. Under modest water droughtstress level grains per row was dominant in affecting grain yield.

Key words: Maize, Seedling stage, Drought stress, Ear character, Correlation analysis, Path analysis

CLC Number:

S513.01

CUI Zhen-hai, ZHANG Li-jun, FAN Jin-juan, RUAN Yan-ye, MA Xing-lin. Correlation Analysis of Grain Yield and Ear Characters of Maize during Seedling Stage with Different Water Supply[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 123-127. doi: 10.7668/hbnxb.2008.01.027.

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