Climate Warming: Effects on the Growth, Yield and Quality of Winter Wheat

doi:10.11924/j.issn.1000-6850.casb20190700492

Abstract

Abstract:

Taking ‘Yangmai13’ and ‘Xumai31’ as experimental materials, we analyzed the influence mechanism of climate warming on the growth, yield and quality of winter wheat by the method of mathematical statistics and so on. The results show that: climate warming makes the phenological phase of winter wheat earlier and shortens the total reproductive period days; decreases the panicle length, the total number of spikelets and the number of spikelets; increases the number of infertile spikelets, but reduces the number of effective panicles and 1000-grain weight, and the decline of the three factors of yield led to the reduction of winter wheat output; the total starch content and the branch/straight ratio of winter wheat grain decrease to different degrees; the total protein content of winter wheat grain increases to some extent, but the grain/alcohol ratio decreases slightly. With climate warming, the growth period of winter wheat will be shortened and the yield will be decreased, while the content of starch and protein will be more complicated, with different increase and decrease.

Key words: climate warming, winter wheat, growth, yield, starch, protein

CLC Number:

Xu Zhaoxia, Su Haibao, Jiang Xiaodong, Ye Xiaofeng, Zeng Yu. Climate Warming: Effects on the Growth, Yield and Quality of Winter Wheat[J]. Chinese Agricultural Science Bulletin, 2020, 36(25): 101-105.

Figures/Tables 8

References 40

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项目	11月	12月	1月	2月	3月	4月	5月	11—5月平均
31年平均温度	10.9	4.9	2.7	5.0	9.3	15.6	21.1	9.9
2012—2013年距平	-0.9	-1.4	0.3	0.5	1.5	0.4	0.6	0.1
2013—2014年距平	1.2	-0.2	2.9	-0.3	2.5	0.7	1.5	1.2

项目	11月	12月	1月	2月	3月	4月	5月	11—5月平均
31年平均温度	10.9	4.9	2.7	5.0	9.3	15.6	21.1	9.9
2012—2013年距平	-0.9	-1.4	0.3	0.5	1.5	0.4	0.6	0.1
2013—2014年距平	1.2	-0.2	2.9	-0.3	2.5	0.7	1.5	1.2

冬小麦生长季	播种		拔节		孕穗		开花		成熟(日/月)
冬小麦生长季	始期(日/月)	天数/d	始期(日/月)	天数/d	始期(日/月)	天数/d	始期(日/月)	天数/d	成熟(日/月)
2012—2013年	15/11	121	16/3	26	11/4	7	18/4	37	25/5
2013—2014年	15/11	120	15/3	26	10/4	6	16/4	37	23/5

冬小麦生长季	播种		拔节		孕穗		开花		成熟(日/月)
冬小麦生长季	始期(日/月)	天数/d	始期(日/月)	天数/d	始期(日/月)	天数/d	始期(日/月)	天数/d	成熟(日/月)
2012—2013年	15/11	121	16/3	26	11/4	7	18/4	37	25/5
2013—2014年	15/11	120	15/3	26	10/4	6	16/4	37	23/5

品种	冬小麦生长季	开花前LAI	开花后LAI
扬麦13	2012—2013年	3.58a	2.52a
扬麦13	2013—2014年	3.62a	2.31b
徐麦31	2012—2013年	3.71a	3.39a
徐麦31	2013—2014年	3.85a	3.11b