中国农业科学2013，Vol.46Issue(10)：2130-2141,12.DOI:10.3864/j.issn.0578-1752.2013.10.019
不同栽培方式对双季晚粳稻产量及温光利用的影响
Effects of Cultivation Methods on Yield and Utilization of Temperature and Light of Late Japonica Rice in Southern Double Cropping Rice Areas
摘要
Abstract
[Objective] Under the conditions of late rice of southern double cropping systems,five different cultivar types of japonica were used to investigate the effects of cultivation methods on yield,growth period and utilization of temperature and light.[Method] In Shanggao of Jiangxi province,four types of experimental materials including late-maturing medium japonica rice,early-maturing late japonica rice,medium-maturing late japonica rice and late-maturing late japonica rice as well as three cultivation methods including hand transplanting (HT),cast transplanting(CT) and mechanical transplanting (MT) were used to comparatively study the effect of different cultivation methods on the yield,growth period and utilization of temperature and light.[Result] The yields of different types of late japonica rice all demonstrated that HT＞CT＞MT,and different significant or very significant levels were reached between the yields of different cultivation methods.Compared with the HT,the yields were reduced by 6.05％-25.70％and 9.94％-39.04％ under CT and MT,respectively.These differences resulted from the total spikelet,seed setting rate and grain weight under HT were higher than under CT and MT.Compared with the HT,the growth periods of CT and MT were delayed,and their total growth periods were significantly shortened by 4.9 and 10.3 days.For different types of varieties,the shortened day of late japonica was more than that of medium japonica.For the same mature period types,the shortened day of japonica hybrid rice was more than that of japonica conventional rice.The utilization efficiency of accumulated temperature and light time of various types of varieties at different developmental stages showed that HT＞CT＞MT,and the whole growth period trended similarly.The utilization efficiency of temperature and light in the whole growth period under MT was only 85.66％ and 80.75％.[Conclusion] On the basis of the above results,a preliminary planning for the suitable range and its supporting suitable variety types of different cultivation methods was made.HT,CT and MT were all suitable in this area,but each cultivation method had its suitable variety types.关键词
双季稻区/晚粳稻/栽培方式/产量/生育期/温光利用Key words
southern double-cropping rice area/ late japonica/ cultivation methods/ yield/ growth stage/ utilization of temperature and light引用本文复制引用
张军,张洪程,霍中洋,李国业,董啸波,花劲,郭保卫,周培建,程飞虎..不同栽培方式对双季晚粳稻产量及温光利用的影响[J].中国农业科学,2013,46(10):2130-2141,12.基金项目
国家"十二五"科技支撑计划重大项目(2011BAD16B03)、超级稻配套栽培技术开发与集成(农业部专项)、江苏省农业科技自主创新基金项目(CX[10]129)、江苏省研究生科研创新计划项目(CXLX12_0920) （2011BAD16B03）
