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Position: Home > Articles > Analysis on Plant and Quality Traits in an Improved Population of Corn Journal of Northeast Agricultural University(English Edition) 2006,13 (2)

Analysis on Plant and Quality Traits in an Improved Population of Corn

作者：

JIN Yi;YU Tianjiang;DONG Ling;WANG Zhenhua;ZHANG Lin

单位：

;College of Agriculture, Northeast Agricultural University, Harbin Heilongjiang 150030, PRC

关键词：

corn;yield;starch;protein;oil;selection

摘要：

An improved population NEAU 2 was tested in Triple Test Cross design to analyze the genetic structure of 31 plants and quality traits. The results suggested that additive effect played an important role in all of these traits except for filling property trait V_1. Nine traits such as grain yield and volume weight were determined mainly by the additive effect. Globulin and starch content were controlled by significant dominant effect. The leaf number above ear and most quality traits studied were controlled by both additive and dominance effect, and 4 traits such as 100 kernel weight were determined by both additive and epistasis effect. However, the heredity of plant height, ear position, and so on was determined by all these kinds of genetic effects. In quality improvement, direct selection could increase the content but not improve the quality of corn protein. Direct selection for albumin content and the ratio of glutelin to zein was effective and might be a better way to improve the protein quality of corn. Starch content might be raised by direct selection, but it might increase the content of amylopectin meanwhile. It was better to increase gross fat content by direct and indirect selection through the weight ratio of embryo to endosperm, which might also be effective to increase gross fat.

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Analysis on Plant and Quality Traits in an Improved Population of Corn

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