摘要
对抛栽稻及常规移栽稻成熟期的６个主要性状，借助于Ｇｉｎｉ系数、变异系数及变幅等有关整齐性统计参数与频率分布结构分析表明，抛栽稻无论在穴间水平上还是单茎水平上，性状间大小不等系数明显要比常规移栽稻增加，分布结构上差异明显，抛秧稻较离散，表现了抛栽稻整齐度逊于常规手栽稻。同时研究了抛栽姿态对整齐度的影响，表明整齐度以抛栽直立苗为最高，倾斜次之，平躺最差。
By means of mean,rang,variance,Gini,CV,etc.,which used to characterize parameter of plant sizedistribution,six characters were investgated on seedling broadcasting and general manual transplanting rice at muture.The results showed that the inequality coefficients of the seelding broadcasting between hills or stems,in contrast withthe general manual transplanting,were greater and its frequency ditributions were latykurticer.So uniformity of theseedling broadcasting was inferior to the general manual transplanting.In addition,the effect of seedling broadcaatedpostures on uniformity indicated that the uniformity of erect posture was superior to the slant and the sland was superi-or to the fall.
出处
《江苏农学院学报》
CSCD
1996年第1期21-24,共4页
Jiangsu Agricultural Research
关键词
水稻
整齐度
抛秋
栽培
rice
seedling broadcastlng
uniformity
