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气象因子对半冬性小麦灌浆速度的影响效应研究
信志红1, 郭建平2, 谭凯炎2, 张利华3, 孙义4, 杨荣光5
(1.山东省东营市气象局;2.中国气象科学研究院;3.江苏省徐州市气象局;4.安徽省宿州市气象局;5.山东省泰安市气象局)
Effect of Meteorological Factors on Grain Filling Rate of Semi-winter Wheat
Xin Zhihong1, Guo Jianping2, Tan Kaiyan2, Zhang Lihua3, Sun Yi4, Yang Rongguang5
(1.Dongying Meteorological Bureau of Shandong Province;2.Chinese Academy of Meteorological Sciences;3.Xuzhou Meteorological Bureau of Jiangsu Province;4.Suzhou Meteorological Bureau of Anhui Province;5.Taian Meteorological Bureau of Shandong Province)
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投稿时间:2018-03-28    修订日期:2019-10-08
中文摘要: 选用黄淮海冬麦区4个半冬性小麦品种郯麦98、山农18、徐麦33、皖麦52为试验材料,通过分期播种试验,利用方差分析、相关分析、逐步回归和通径分析等方法,对半冬性小麦籽粒灌浆速度变化趋势和气象因子对灌浆速度的影响进行了分析。结果表明,正常播期冬小麦灌浆速度波动性最小、千粒重最大,迟播10d冬小麦灌浆速度波动性最大、千粒重最小;华北区品种郯麦98灌浆速度表现最稳定、千粒重最高,而黄淮区品种皖麦52灌浆速度最大;半冬性小麦灌浆持续期为35~39d;南北气候差异是影响各品种冬小麦灌浆速度不同的原因之一。气温条件对冬小麦灌浆速度影响显著,其中最高气温要素是影响不同播期品种灌浆速度的共有关键因子;半冬性小麦灌浆速度变化曲线大致呈“M”型,与之相关显著的各气象因子变化亦呈明显的“M”型或“W”型;各播期灌浆速度均呈“慢-快-慢”的变化趋势,灌浆峰值期一般出现在开花后15~25d,迟播冬小麦最大灌浆速度出现时间较对照处理提前,不利于提高粒重。通径分析表明,最高气温对灌浆速度的作用由自身的直接效应决定,而日照时数与最低气温对灌浆速度的作用与间接效应一致;最高气温平均值对灌浆速度的影响最重要,日照时数和最低气温平均值对灌浆速度的影响较弱;最高和最低气温平均值、日照时数均为灌浆速度的限制因子,其中最高气温平均值对灌浆速度变化的决策作用最大,日照时数的决策作用最小。
Abstract:Four semi-winter wheat varieties Tanmai 98, Shannong 18, Xumai 33 and Wanmai 52 in Huanghuaihai winter wheat area were selected as test materials. Through the sowing date tests, the trends of grain filling rate and the influence of meteorological factors on the filling rate were analyzed by means of analysis of variance, correlation analysis, stepwise regression and path analysis. The results showed that the fluctuation of grain filling rate was the least and the 1000-grain weight was the highest in the normal sowing date, the late-sowed 10d winter wheat had the highest volatility and the smallest 1000-grain weight. The grain filling rate of Tanmai 98 was the most stable and the 1000-grain weight was the highest in winter wheat area of North China, while the grain filling rate of Wanmai 52 was the highest in Huanghuai winter wheat area. The grain filling duration of semi-winter wheat was 35~39 days. The difference between north and south climate was one of the reasons that affected the different filling rate of winter wheat. The temperature conditions have significant effects on the grain filling rate of winter wheat, the highest temperature factor is the common key factor affecting the filling rate of different sowing date and varieties. The change curve of grain filling rate of semi-winter wheat is roughly "M" type, and the significant changes of meteorological factors are also obvious "M" type or "W" type. The filling rate of each sowing period showed a trend of "slow-fast-slow", and the peak period of grain filling generally appeared 15~25d after flowering, the appearance time is earlier of the maximum filling rate of late sowed winter wheat than the control treatment, which is not conducive to increasing the grain weight. Path analysis shows that the effect of maximum temperature on filling rate is determined by its direct effect, while the effect of sunshine hours and minimum temperature on filling rate is consistent with indirect effect. The average of highest temperature has the most important effect on filling rate, sunshine time and the average of minimum temperature has a weak influence on the filling rate. The averages of highest and lowest temperature and the sunshine hours are the limiting factors of the filling rate, and the average of highest temperature has the greatest decision-making effect on the change of filling rate, the decision-making of sunshine hours role is minimal.
文章编号:201803280141     中图分类号:    文献标志码:
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
引用文本:
信志红,郭建平,谭凯炎,张利华,孙义,杨荣光,0.[en_title][J].Meteor Mon,():-.
Xin Zhihong,Guo Jianping,Tan Kaiyan,Zhang Lihua,Sun Yi,Yang Rongguang,0.Effect of Meteorological Factors on Grain Filling Rate of Semi-winter Wheat[J].Meteor Mon,():-.