不同地区春播小麦生育天数的对比试验  

GROWTH PERIOD OF SPRING-SOWING WHEAT ON DIFFERENT LOCATIONS

作　　者：曹广才[1] 吴东兵[1] 

机构地区：[1]中国农业科学院作物育种栽培研究所,北京100081

出　　处：《植物生态学与地植物学学报》1991年第2期191-195,共5页

基　　金：国家自然科学基金资助的小麦生态研究的一部分

摘　　要：1983至1985年,在石家庄、榆林、银川、张掖进行了小麦生态研究的春播试验。这4个试点的纬度基本相同,但经度和海拔差别较大。绵阳11号属于春型小麦品种。在春播试验中,参试品种在不同地点的播种至成熟天数有明显差异。试验表明,在我国北纬38-39度之间的不同地点,海拔每升高100米,小麦生育期间的平均日均温约降低0.3℃,生育天数约增加2-3天,经度每增加1度,小麦的生育天数约减少2天。Ecological experiments on wheat in sowing stages of spring were arra-nged on Shijiazhuang, Yulin, Yinchuan and Zhangye during 1983-1985.These locations have similar latitudes,but their longitudes and elevationsare very different. Mianyang 11 is a spring wheat. Its growth period fromsowing to maturation for the experimental wheat variety has apparent di-fference between different locations. Experimental results showed thataverage day air temperature in growth period of wheat could decrease forabout 0.3℃ and the growth period could be increased by 2 or 3 days withevery 100 metre increment in elevation has go up. On the other hand,this period of growth could be reduced for about two days with one degreedecrease in longitude in the range between 38°N and 39°N in China.

关 键 词：小麦 生育天数 海拔 纬度 经度 

分 类 号：S512.101[农业科学—作物学]