麦后移栽和直播棉果枝果节的形成及其综合评价  

DEVELOPMENT AND SYNTHETICAL JUDGEMENT OF FRUIT-BRANCHES AND SITES IN COTTON SOWED OR TRANSPLANTED AFTER WHEAT HARVESTING

作　　者：朱新华[1] 高璆[1] 

机构地区：[1]南京农业大学农学系,南京市农林局210014

出　　处：《南京农业大学学报》1993年第3期6-10,共5页Journal of Nanjing Agricultural University

基　　金：国家自然科学基金

摘　　要：以麦套移栽棉为对照,系统研究了麦后移栽和直播棉果枝果节的形成与温度的关系,棉株四桃(伏前桃、伏桃、早秋桃、晚秋桃)果节的分布,强弱势果枝果节的综合评判及空间分布等。结果表明:麦后移栽棉伏前桃和伏桃果节数较少,秋桃果节数较多,强势果枝果节数和单株生产力均不低于麦套移栽棉;麦后直播棉果枝果节分化迟,形成快,但最终有效和强势果枝果节少,节枝比小,个体生产力较低,需通过增加密度,以建立小个体与大群体相适应的群体结构,才能获得早熟、高产、优质。Systematic researches were made on relationships between development of fruit-branches andsites and temparature,distribution of“four kinds fruits”sites,synthetical judgement of the suprior,inferior,and ineffective sites and branches of cotton sowed or transplanted after wheat harvesting,checked bytransplanted cotton interplanted with wheat.The effective fruit-branches and sites,the single plant potentialof transplanted cotton after wheat harvesting were not smaller than those of transplanted cotton interplantedwith wheat.The development of sites and branches of sowed cotton after wheat harvesting was faster,theeffective and suprior sites of single plant were smaller,and the yield potential of single plant was lower thanthose of control.Therefore,the stracture should be“little plant-major population”to increase yields andimporove qualities.

关 键 词：棉花 栽培 移栽 直播 

分 类 号：S562.04[农业科学—作物学]