GAO Pan,LIU Yu-tao,WANG Yu-xian,et al.Analysis of Grain Filling,Dehydration Characteristics of Different Maize Varieties in Semi-arid Area[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(12):5-7.[doi:10.11942/j.issn1002-2767.2017.12.0005]
半干旱地区不同玉米品种的籽粒灌浆及脱水特性研究
- Title:
- Analysis of Grain Filling,Dehydration Characteristics of Different Maize Varieties in Semi-arid Area
- 文章编号:
- 1002-2767(2017)12-0005-03
- 分类号:
- S513
- 文献标志码:
- A
- 摘要:
- 为研究不同玉米品种在半干旱春玉米区种植的可行性,通过对比分析,探讨了6个玉米品种在该地区种植的灌浆和脱水特性。结果表明:供试品种具有不同的灌浆特性,嫩单16和鹏程6号灌浆时间较长,百粒重、最大灌浆速率和平均灌浆速率高于其它品种。各品种灌浆期脱水速率也不同,在授粉后75 d时,鹏程7号籽粒含水量最高,为31.39%,而龙单76的籽粒含水量最低,为24.13%。不同玉米品种脱水速率差异达到显著水平。龙单76前期生理脱水速率和后期自然脱水速率均较快,而鹏程6号后期自然脱水速率较快。
- Abstract:
- In order to study the feasibility of planting different maize varieties in semi-arid early spring maize area,the filling rate and dewatering characteristics of 6 maize varieties in semi-arid area were discussed through comparative analysis.The results showed that the varieties with different filling characteristics,Nendan 16 and Pengcheng 6 had long filling time,100 grain weight,the maximum filling rate and mean grain filling rate were higher than other varieties.The dehydration rates of grain filling period were also different.At 75 days after pollination,grain water content of Pengcheng 7 was the highest for 31.39%,and the grain mater content of Longdan 76 was the lowest for 24.13%.The difference of dehydration rate of different maize varieties reached a significant level.The rate of physiological dehydration in early stage and the rate of natural dehydration in the later stage of Longda 76 were the fast of,while the natural dehydration rate in the later stage of pengcheng 6 was faster.
参考文献/References:
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备注/Memo
收稿日期:2017-10-31基金项目:公益性行业(农业)科研专项资助项目(201503116-02);黑龙江省农业科学院院级科研项目(2017SJ034);齐齐哈尔市科技局农业公关项目资助(NYGG-201405、NYGG-201625)