春夏播玉米籽粒蛋白质、脂肪和淀粉含量动态累积与分配差异性研究

doi:10.12190/j.issn.2096-1197.2024.04.08

Abstract

Abstract: 【Objective】Study the dynamic accumulation and distribution differences characteristics of protein,fat,and starch content in spring sowing and summer sowing maize grains,this could provide a reference for the breeding and production of specialized high-quality maize varieties.【Methods】Zhuyu 216,Zhuyu 902,Zhuyu 927,Zhengdan 958,and Yufeng 303 were chosen as the experiment material. The grains within the ear were collected 12 days after pollination,collected grains every 7 days,dry them to constant weight,maize grains protein,fat,and starch content were rapidly detected by near-infrared spectroscopy,to analyse the correlation between the dynamic accumulation of maize grains protein,fat,and starch,and to compare the differences in the dynamic accumulation and distribution of protein,fat,and starch content between spring sowing and summer sowing.【Results】The protein content of maize grains decreased sharply in spring sowing and then stable variation,while it increased again in summer sowing,showed a wave like pattern;the fat content of maize grains in spring sowing and summer sowing first increased and then decreased,the starch content of maize grains in spring sowing and summer sowing increased gradually with grain development,the total protein and fat content in spring sowing and summer sowing maize grains gradually decreased overall. The accumulation rate dynamic of protein,fat,and starch in spring sowing and summer sowing grains showed a zigzag pattern. The distribution of maize grains protein,fat,and starch showed an overall pattern of starch>protein>other>fat from 12 to 19 days after pollination of spring sowing,From 26 to 47 days after pollination,it basically showed starch>other>protein>fat.After pollination 12-18 days of summer sowing,the overall appearance showed starch>protein>other>fat,from 19 to 47 days after pollination,the basic appearance was starch>other>protein>fat. Correlation analysis showed a highly significant positive correlation between the dynamic accumulation of protein,fat,and starch（P<0.01）.【Conclusion】The dynamic accumulation and distribution of grains protein,fat,and starch of Zhuyu 216,Zhuyu 902,Zhuyu 927,Zhengdan 958,and Yufeng 303 in spring sowing and summer sowing were greatly affected by the environment. The dynamic accumulation of maize grains protein,fat,and starch showed a highly significant positive correlation with each other.

Key words: Maize, Grains, Spring sowing and summer sowing, Protein, Fat, Starch, Accumulation and distribution

CLC Number:

S513

MA Hongzhen, WANG Ning, WU Yin, XU Haitao, TIAN Yuan, FENG Xiaoxi, XU Bo, ZHANG Jungang, GUO Haibin. Study on the difference of dynamic accumulation and distribution of protein,fat,and starch content in spring sowing and summer sowing maize grains[J].Journal of Northern Agriculture, 2024, 52(4): 69-83.

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Study on the difference of dynamic accumulation and distribution of protein,fat,and starch content in spring sowing and summer sowing maize grains

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