Analysis of Maize Biological Traits Which Affected Corn Kernel Mechanically Harvesting Qualities

doi:10.7668/hbnxb.2015.06.025

Abstract

Abstract: Eight different maize hybrids were chosen to study the biological traits which had important influence on maize kernel mechanically harvesting qualities.The quality indicators of corn machinery direct harvesting included kernel crashing rate,grain impunity rate,era losing rate and kernel losing rate.We had analyzed the correlation between grain moisture content and kernel crashing rate,grain impunity rate,era losing rate and kernel losing rate independently.Then we studied the maize plant type biological traits,ear biological traits,yield biological traits and lording biological resistant traits which had important effect on kernel mechanical harvesting indexes.The results showed that different maize varieties had different grain moisture content.Demeiya No.1 had the lowest grain moisture content,whereas Liyu 16 had the highest grain moisture content,followed by Zhengdan 1002.The grain moisture content of Zhengdan 958 was 29.91%,which was in the middle level of the eight different grain moisture contents.We found that grain moisture content,ear height,ear diameter,rind crushing resistance and bract width were significantly correlated with maize kernel mechanically harvesting qualities.To cultivate new maize hybrid which was more suitable for mechanically harvesting,the grain moisture content,ear height,ear diameter,bract width all should be decreased.

Key words: Maize, Biological traits, Quality of maize kernel mechanically harvesting, Grain moisture content, Kernel crashing rate

CLC Number:

S372

LI Chuan, QIAO Jiang-fang, GU Li-min, XIA Lai-kun, ZHU Wei-hong, HUANG Lu, LIU Jing-bao. Analysis of Maize Biological Traits Which Affected Corn Kernel Mechanically Harvesting Qualities[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(6): 164-169. doi: 10.7668/hbnxb.2015.06.025.

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http://www.hbnxb.net/EN/Y2015/V30/I6/164

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