川西南安宁河谷地区小麦生育期的气象因子与超高产育种  

Meteorological Factors in Growth Period and Super High Yield Breeding of Wheat in Anning River Valley in SouthWest of Sichuan Povince

作　　者：田宁[1] 

机构地区：[1]四川省凉山州西昌农业科学研究所

出　　处：《西南农业学报》1998年第S2期204-210,共7页Southwest China Journal of Agricultural Sciences

摘　　要：本文通过分期播种试验资料，认识川西南小麦推广品种‘西昌反修麦’生长发育与气象条件的关系，提出小麦超高产育种有必要进一步发挥有利气象因子的增产作用，培育新的气候生态类型。还分析了主要发育期的冻害指标。采用Ｐ（Ａ）＝ｍｎ＋１×１００％（Ｐ（Ａ）保证率，ｍ序号，ｎ样本数）计算冻害指标终日的保证率。Periodic sowing experiments based on the agricultural meteorological condition were carried out in order to study the association of meteorological factors with the growth of popularized variety“ Xichang FanXiu Wheat” in Anning River Valley in southwest of Sichuan Province. Results showed that for further playing the role of favorable metorological factors in increasing wheat production, it is necessary to breed new climatic ecotype in super high-yielding wheat. Freeze injury indexes in major growth periods were also analyzed. The assurance rate of freeze injury index in a whole day is calculated with the formula P(A)=mn+1×100%,in which P(A)is the assurance rate and m,the serial number,and n,the amount of samples.

关 键 词：小麦 超高产育种 气候生态型 气象因子 

分 类 号：S162.5[农业科学—农业气象学]