CAJ | 학술논문

为探讨早稻抽穗开花期气象因子对空秕率的影响，趋利避害，确保高产稳产，利用娄底农业气象观测站1981～2010年的早稻空秕率、发育期资料，以及娄底国家地面气象站的气象要素，分析早稻抽穗开花期光、温、水等气象条件与空壳率、秕粒率、空壳率＋秕粒率的相关性，选取相关性好的气象因子，阐述气象条件对空秕率的影响。结果表明：降水量、降水日数、日平均相对湿度、日最高气温是引起空秕率变化的主要气象因子。降水量、降水日数、日平均相对湿度与空秕率成正相关，日最高气温与空秕率成负相关。
위탐토조도추수개화기기상인자대공비솔적영향，추리피해，학보고산은산，이용루저농업기상관측참1981～2010년적조도공비솔、발육기자료，이급루저국가지면기상참적기상요소，분석조도추수개화기광、온、수등기상조건여공각솔、비립솔、공각솔＋비립솔적상관성，선취상관성호적기상인자，천술기상조건대공비솔적영향。결과표명：강수량、강수일수、일평균상대습도、일최고기온시인기공비솔변화적주요기상인자。강수량、강수일수、일평균상대습도여공비솔성정상관，일최고기온여공비솔성부상관。
In order to ascertain the effect of meteorological conditions during heading and flowering stage on sterile grain ratio in early rice , the correlations between meteorological conditions , sunshine , temperature and rainfall during heading and flowering stage , and percentage of unfilled grains , blighted grain rate and sterile grain ratio were analyzed utilizing the data on sterile grain ratio and growth duration of early rice from 1981 to 2010 from Loudi Agricultural Meteorological Sta-tion and meteorological data from Loudi National Meteorological Station.The results showed that the important meteorologi-cal conditions that induced change of sterile grain ratio were rainfall , rainy day, daily average relative humidity and daily maximum temperature.The correlations between sterile grain ratio and rainfall , rainy day, daily average relative humidity were positive , while correlation between sterile grain ratio and daily maximum temperature was negative.