High Temperature-preventing Cultivation Technology of Single-season Middle Rice for High Yield and High Quality in Jianghuai Area
作者机构：Institute of Rice ResearchAnhui Academy of Agricultural SciencesHefei 230031China
出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)
年 卷 期：2022年第11卷第2期
页 面：27-29,37页
基 金：Supported by Anhui Provincial Science and Technology Major Project(2021d06050002) Anhui Provincial Agricultural Improved Variety Project(Jiebangguashuai)
主 题：Single-season middle rice Jianghuai area High temperature damage High yield Good quality Cultivation technology
摘 要：In recent years,with the global climate change,the frequency and duration of high temperature in summer and autumn have increased,causing high temperature heat damage to summer crops such as rice and *** the end of July to early August is the main period of high temperature occurrence,during which the daily average temperature above 30℃is a high probability event,and even the highest temperature is above 38℃,while this period coincides with the booting-blooming-filling stage of the single-season middle rice in Jianghuai,especially the middle-season indica rice,so it often leads to the degradation of rice spikelets,pollen abortion,difficulty in pollen dispersion,and even difficulty in heading,resulting in a serious decline in the seed setting rate and poor filling of grains,which finally affect the yield and *** on the goal of high-yielding high-quality rice cultivation,this paper proposed targeted technical measures for single-season middle rice from the aspects of planting time sequence optimization,selection of high-temperature-resistant varieties,population construction,fertilizer and water management technology,and how to compensate for the occurrence of unexpected disasters to promote plant *** study provides technical support for high-yielding high-quality stress-resistant and disaster-reducing rice cultivation technology.
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