夏播水果玉米干物质积累规律分析  

Studies on the Law of Dry matter Accumulation and Distribution of Fruit Maize Seeded in Summer in Xinjiang

作　　者：王志贤[1] 贺志强[1] 

机构地区：[1]塔里木大学植物科学学院,新疆阿拉尔843300

出　　处：《湖北农业科学》2010年第12期2989-2990,2998,共3页Hubei Agricultural Sciences

基　　金：塔里木大学校长基金重点项目(TDZKZD07002)

摘　　要：研究了新疆南疆夏播水果玉米干物质积累的变化规律。结果表明,生育期较长的品种干物质一般最终积累总量较多,生育期较短的品种干物质积累总量相应较少;随着生育期的推进,干物质的积累不断增加,呈上升趋势,优势表现在生育中期和后期;苗期至大喇叭口期干物质积累较少,相对干物质积累量较小;从大喇叭口期开始,干物质积累加快;抽雄期开始干物质积累比较迅速,至青苞收获期达到一生中最大值;苗期至大喇叭口期干物质的分配规律是叶片>根系>茎秆,抽雄期是叶片﹥茎秆﹥根系﹥雄穗﹥雌穗,青苞收获期是雌穗﹥叶片﹥茎秆﹥根系﹥雄穗。因此,加强田间的后期管理有利于水果玉米果穗产量的提高。Experiments have been carried out to study the process of dry-matter accumulation and distribution of summer-sown fruit corn in Xinjiang by plot trial in random assortment. The main results showed that longer growing period varieties accumulated more dry-matter than shorter generally did. As the growth period passing, the accumulation increased faster in the middle and latter stage. The accumulation amount of dry matter was less during seedling to elongation stage, and increased rapidly from trumpet stage and relatively faster in the male silking stage and reached its peak at dough stage. The distributional law of the dry matter was, leaf﹥root﹥stem from seedling to trumpet stage, leaf﹥stem ﹥root﹥male﹥fruit at male silking stage, fruit﹥leaf﹥stem ﹥root﹥male at dough stage. Therefore, strengthening field management in the latter period was very important to increase grain yield.

关 键 词：水果玉米 干物质 积累和分配 夏播 新疆南疆 

分 类 号：S513[农业科学—作物学]