北疆高产棉花根系生长规律的研究Ⅱ栽培措施对根系及地上部生长的影响  

Studies on the Root Growth of High Yield Cotton in North Xinjiang

作　　者：李少昆[1] 王崇桃[1] 张旺锋[1] 汪朝阳[1] 

机构地区：[1]石河子大学新疆作物高产研究中心

出　　处：《石河子大学学报（自然科学版）》1999年第S1期26-30,共5页Journal of Shihezi University(Natural Science)

基　　金：国家自然科学基金资助项目! ( 3 9760 0 4 0 )

摘　　要：在北疆大田条件下 ,研究种植密度、灌溉、覆膜等栽培措施对棉花根系与地上部生长影响的结果表明 ,棉花根系具有较强的自动调节能力 ,群体根量在生育前期与密度呈正相关 ,生育后期密度间差异不显著 ;此外根系开始发生调节的时间早于地上部。生育期间干旱胁迫后 ,根量减轻、地上部衰老加快 ,根系生产力下降 ,籽棉产量降低。覆膜的棉花根系建成提前。The effect of plant densities,irrigation,plastic film mulching on the growth of root system and above ground parts of high yield cotton in North Xinjiang were studied under field condition.The results indicated that the root system has automatic regulation ability to circumstance condition.The amount of roots plants per area was positively correlated with plant density in the early period,but the relationship mentioned above was not significant in the later period.Under the drought treatment in growth period,the root system had less weight and productivity,and the parts of above ground had faster senescence and lower yield.There's significant relationship of linear correlation and regression between the weight of root system and that of above ground parts,and yield.\;

关 键 词：北疆 棉花 根系 栽培措施 

分 类 号：S562[农业科学—作物学]