2010年小麦成熟期推迟的气候因子探析.pdfVIP

河南农业科学, 20 11, 40( 5) : 47-51 Jour nal of Henan A ricultural Sciences 2010 1, 2 1 1 1 杜黎君 , 苏 晴 , 孙海燕 , 李友勇 ( 1. , 453003; 2. , 453003 ) : 从分析气候( 温度) 因子着手, 探讨2010 年小麦晚熟的成因选择4 个年份, 其中2001- 2002 年和2008- 2009 年是暖冬年份, 2002- 2003 年和2009- 20 10 年是冷冬年份 究结果表 明, 年份之间小麦成熟期差异显著, 但这一差异与生长期间的月平均气温活动积温有效积温负 积温有效积温天数等相关性不显著, 而与11 月至翌年4 月间的20 以上温度累积天数( D20) 相 关达01显著水平据此建立了回归方程y = 656. 539- 2. 673x 该方程可用来预测小麦生长期 中所需20 以上温度的天数和成熟期等信息如, 小麦10 月上旬播种, 6 月初成熟, 11 月至翌年4 月份至少需要15~ 20 个20 以上温度日, 否则, 生育期推迟该现象也暗示, 生育期内气温波动 更有利于小麦的生长发育 : 小麦; 成熟期; 积温; 20 以上温度累积天数( D20) : S512. 1 : A : 1004-3268( 20 11) 05-0047-05 Analysis of M eteorolo ical Factors for Delayin Wheat M aturity in 2010 1, 2 1 1 1 DU L-i jun , SU Qin , SUN Ha-i yan , LI You-yon ( 1. Key Discipline Open Laborat ory for Crop Molecular Breedin of Henan Institute of H i her Learnin , Henan Institute of Science and T echnolo y , X inx ian 453003, China; 2. Xinx ian Meteorolo ical Bureau, Xinx ian 453003, China) Abstract: The data of meteorolo ical factors, especially temperature, were analyzed to explore the rea- son of wheat late-maturin in 2010. Four years from 2001 to 2010 w ere selected for the analysis, of which 2001- 2002 and 2008- 2009 belon ed to w arm w inter years, w hile 2002- 2003 and 2009- 2010 belon ed to cold w inter years. The results of analysis showed that the wheat mature periods were si nifi- cantly different between years. The difference was not correlated w ith the monthly avera e temperature, active and effective accumulated temperatu