暖冬条件下播期对不同类型小麦幼穗分化的影响

应用生态学报 ›› 2003, Vol. ›› Issue (10): 1627-1631.

暖冬条件下播期对不同类型小麦幼穗分化的影响

郜庆炉, 薛香, 吴玉娥, 茹振钢

河南职业技术师范学院农学系, 新乡 453003

收稿日期:2001-02-21 修回日期:2001-04-09 出版日期:2003-10-15
通讯作者: 郜庆炉,男,1963年生,副教授,博士,主要从事农业资源与高效耕作制度研究,发表论文30余篇.E-mail:gaoql@371.net.
基金资助:
河南省教育厅科学技术攻关资助项目(1999210030,20012100005)

Effects of sowing times on the spike differentiation of different wheat varieties under the climate of warm winter

GAO Qinglu, XUE Xiang, WU Yu'e, RU Zhengang

Hetian Vocational Technical Teachers'College, Xinxiang 453003, China

Received:2001-02-21 Revised:2001-04-09 Online:2003-10-15

摘要/Abstract

摘要： 对3个不同类型小麦品种在不同播期下的幼穗分化进程及受冻情况进行了系统观察和研究.结果表明,在气候变暖,秋、冬温度较高的情况下,小麦幼穗分化进入各时期的时间早晚为强春性品种>春性品种>半冬性品种;播期对小麦幼穗分化的伸长期、单棱期和二棱期持续时间长短影响较大;在早播的情况下,春性越强的小麦品种,越冬前幼穗分化发育速度越快,达到的发育阶段越高,越冬期间越容易被冻死.据此,提出在河南气候变暖,秋、冬温度较高的情况下,首先在生产上要选用半冬性品种,适当搭配晚播早熟的春性品种;其次,无论半冬性品种或春性品种,播种期都不宜过早.

Abstract: Spike differentiation processes and freezing damage of three wheat varieties were studied by sowing in different stages.The results showed that under the condition of weather changing warm, the time of entering each stage of spike differentiation of wheat of strong spring variety was earlier than that of wheat of spring variety and semi-winter variety.Sowing times had more effects on durative time of the elongation stage, single-prism stage and two-prism stage of the spike differentiation.Under sowing early, the stronger the springness of wheat was, the quicker it developed, the higher spike differentiation phases it reached before winter, and the more serious freezing damage it suffered in wintering.According to this, the semi-winter varieties of wheat should he adopted first and arranged in pairs with spring varieties in wheat production, and the sowing times should not be too early as the weather becoming warm.

中图分类号:

郜庆炉, 薛香, 吴玉娥, 茹振钢. 暖冬条件下播期对不同类型小麦幼穗分化的影响[J]. 应用生态学报, 2003, (10): 1627-1631.

GAO Qinglu, XUE Xiang, WU Yu'e, RU Zhengang . Effects of sowing times on the spike differentiation of different wheat varieties under the climate of warm winter[J]. Chinese Journal of Applied Ecology, 2003, (10): 1627-1631.

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