农业气象因素对江西不同播期高粱产量和品质的影响

IF 0.6 4区环境科学与生态学 Q4 ECOLOGY

Applied Ecology and Environmental Research Pub Date : 2023-01-01 DOI:10.15666/aeer/2103_24932505

X. Shen, C. Jiang, Y.Q. Xu, X.F. Wu, S. Wang, S. Xie

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引用次数: 0

摘要

．以高粱品种J67和晋江2号(JN2)为试验材料。通过回归分析和多因素比较，探讨不同播期高粱产量、品质与气候因子的关系，为江西地区高粱适应性研究提供理论依据。结果表明:年际、播期和高粱产量分别达到极显著(P < 0.05)和极显著(P < 0.01)水平。J67和JN2分别在4月25日和5月5日产量最高，平均产量比其他播期分别高出34.67%和11.85%。随着播期的推迟，籽粒蛋白质、脂肪和淀粉含量先升高后降低。有效降水量与产量的关系为线性函数，有效气温、日平均气温、日照时数与产量的关系为二次函数。此外，对品质影响最大的气候因子为日平均气温，日照时数影响最小。结果表明，适宜的播期是决定高粱产量和籽粒品质的关键。

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EFFECTS OF AGROMETEOROLOGICAL FACTORS ON SORGHUM YIELD AND QUALITY AT DIFFERENT SOWING DATES IN JIANGXI PROVINCE, CHINA

. Sorghum varieties J67 and Jiniang 2 nd (JN2) were used as test materials in this experiment. Regression analysis and multivariate comparison were used to explore the relationship between sorghum yield, quality and climate factors in different sowing dates, which provided a theoretical basis for the study of sorghum adaptability in Jiangxi region, China. The results showed that the inter annual, sowing date and sorghum yield reached significant (P < 0.05) and extremely significant level (P < 0.01), respectively. The yield of J67 and JN2 was the highest on the 25 th April, and 5 th May, respectively, and the average yield was 34.67% and 11.85% higher than that of other sowing dates. The content of protein, fat and starch increased first and then decreased with the delay of sowing date. The relationship between effective precipitation and yield is linear function, while the relationship between effective temperature, daily average temperature, sunshine hours and yield is quadratic function. In addition, the climate factor that has the greatest impact on the quality is the daily average temperature, while the hours of sunshine have the least impact. The results showed that suitable sowing date was the key to the formation of sorghum yield and grain quality.

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来源期刊

Applied Ecology and Environmental Research ECOLOGY-ENVIRONMENTAL SCIENCES

CiteScore

1.40

自引率

14.30%

发文量

104

审稿时长

14 months

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