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当前位置: 首页 > 文章 > 近10 a黄淮旱地小麦品种主要性状的演变 山西农业科学 2019 (8) 1341-1345,1427
Position: Home > Articles > 近10 a黄淮旱地小麦品种主要性状的演变 Journal of Shanxi Agricultural Sciences 2019 (8) 1341-1345,1427

近10 a黄淮旱地小麦品种主要性状的演变

作  者：
孟丽梅;杨子光;孙军伟;张珂;田文仲;郭军伟
单  位：
洛阳农林科学院
关键词：
旱地;冬小麦品种;性状;演变;黄淮
摘  要：
为了解黄淮冬麦区旱肥地品种性状的变化规律,以近10 a来黄淮冬麦区旱肥地区域试验数据为研究对象,对参试品种的主要性状进行整理和分析,以期为黄淮麦区旱肥地小麦育种提供参考.结果表明,随品种育成年份的推迟,成熟期呈延迟趋势,平均每年延迟0.327 4 d;抽穗期呈延迟趋势,平均每年延迟0.462 5 d;株高呈增加趋势,平均每年增加0.623 2 cm;全生育期天数呈减少趋势,平均每年减少0.635 6 d;灌浆时间呈增加趋势,平均每年增加0.263 4 d.相关性分析表明,株高与产量呈极显著正相关;成熟期与灌浆时间呈极显著正相关,与有效穗数呈显著负相关;穗粒数、有效穗与产量呈显著正相关.通径分析结果表明,产量构成因素对产量的直接贡献从大到小排序为有效穗数>千粒质量>穗粒数,有效穗数对产量的直接影响最大,通径系数达到0.538 8;穗粒数对产量的影响最小,通径系数为0.392 8.
作  者：
MENG Limei;YANG Ziguang;SUN Junwei;ZHANG Ke;TIAN Wenzhong;GUO Junwei;Luoyang Academy of Agriculture and Forestry Sciences;
单  位：
MENG Limei%YANG Ziguang%SUN Junwei%ZHANG Ke%TIAN Wenzhong%GUO Junwei%Luoyang Academy of Agriculture and Forestry Sciences
关键词：
dryland;;winter wheat variety;;traits;;evolution;;Huanghuai
摘  要：
To understand the changes in the traits of dryland in the Huanghuai winter wheat area,based on the regional test data of the drought-fertilizer group in the Huanghuai winter wheat area in the past 10 years,the main traits of the tested varieties were arranged and analyzed, which could provide a reference for wheat breeding in drought-fertilizer land in Huanghuai wheat area. The results showed that with the delay of the breeding season, the maturity period delayed, the average annual delay was 0.327 4 d, the heading period delayed, an average annual increase was 0.462 5 d, plant height increased, the average annual increase was 0.623 2 cm, the number of days in the whole growth period showed a decreasing trend, the average annual reduction was 0.6356 d, grouting time increased, the average annual increase was 0.263 4 d. The correlation analysis results showed that there was a significant positive correlation between plant height and yield. Maturity period was positively correlated with filling time, there was a significant negative correlation with effective panicles. The number of grains per panicle and effective panicles were positively correlated with yield. Path analysis results showed that the order of direct contribution of yield components to yield was effective panicle > 1 000-grain quality > grain number per panicle.Effective panicles had the greatest direct impact on yield, the path coefficient was 0.538 8, the effect of grain number per spike on yield was the smallest,the path coefficient was 0.392 8.

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