Tillering Characteristics of Different Varieties of Double-season Rice under Different Mechanical Transplanting Modes  

不同机插条件下双季稻不同品种的分蘖特性（英文）

作　　者：李木英[1] 黄程宽 谭雪明[1] 潘晓华[1] 石庆华[1] 

机构地区：[1]江西农业大学,江西南昌330045

出　　处：《Agricultural Science & Technology》2016年第11期2602-2610,共9页农业科学与技术（英文版）

基　　金：Supported by National Key Technology Research and Development Program of China during the Twelfth Five-Year Plan Period(2011BAD16B04);Super Rice Project of Ministry of Agriculture;"555 Project"of Jiangxi Province

摘　　要：A total of 8 early-season and late-season rice varieties with different growth periods were selected, and their tillering characteristics under wide-narrow row and equal row .transplanting modes were studied. The results showed that the length of slow growth phase was related to the performance of transplanter; the ef- fect of mechanical transplanting on tillering of early-season rice was greater than that of late-season rice; Compared with late-season rice, early-season rice showed later tillering and longer tillering period; the tiller number per plant and effective panicle number per plant differed greatly among different varieties of double-season rice; under the condition of same transplanting density, the tillers of rice under wide- narrow row transplanting mode appeared rapidly and disappeared slowly, and wide- narrow row transplanting mode improved tillering, effective panicle number and yield of rice; different varieties of double-season rice showed different adaptability to me- chanical transplanting, and the varieties with short growth period, strong tilledng a- bility and more effective panicles per plant were more suitable for mechanical trans- planting; the effect of mechanical transplanting on rejuvenation of rice could be im- proved by improving the performance of transplanter.选择不同生育期的早、晚稻品种各8个,研究宽窄行和等行机插秧条件下不同品种的分蘖特性。结果表明:水稻机插秧缓苗期的长短与插秧机的性能有关;机插对早稻分蘖的影响大于晚稻,早稻比晚稻分蘖起始慢、分蘖期长,不同品种的单株分蘖数和有效穗数差异较大;在相同密度的情况下,宽窄行机插处理水稻在缓苗期后分蘖发生快、消亡慢,宽窄行机插有利增加水稻分蘖、有效穗数以及提高水稻产量;不同品种的机插适应性有差异,生育期短、单株分蘖力强和单株有效穗多的品种适合机插;机插对水稻缓苗的影响应该可以通过提高插秧机性能得到改善。

关 键 词：Double-season rice Equal row mechanical transplanting Wide-narrow row mechanical transplanting Tillering characteristics 

分 类 号：S511.42[农业科学—作物学]