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于2016年早、晚季在湖南省浏阳市永安镇开展大田试验,对湖南常用米粉稻品种陆两优996、中嘉早17和中早39的产量形成特点和辐射利用率进行比较。结果表明,早季陆两优996的产量比中嘉早17和中早39高35.34%~46.18%,差异显著;晚季各品种的产量差异未达显著水平。早季陆两优996的每穗粒数、千粒重、成熟期干物质量、收获指数比其他2个品种分别高14.77%~29.41%、6.11%~13.20%、23.34%~34.78%、9.96%~10.65%;辐射截获量和辐射利用率比其他2个品种分别高7.29%~13.75%和14.86%~18.93%。
In early and late 2016, a field experiment was conducted in Yong’an Town, Liuyang City, Hunan Province to compare yield formation characteristics and radiation utilization of the commonly used rice varieties Lu Liangyou 996, Zhong Jia Zao 17 and Zhongzao 39 in Hunan Province. The results showed that the yield of early summer Lu Liangyou 996 was 35.34% ~ 46.18% higher than that of Zhongjia 17 and middle 39 early, with significant difference; the yield of late variety had not reached the significant level. The grain yield, grain weight per dry weight and dry matter weight at maturity were 14.77% ~ 29.41%, 6.11% ~ 13.20%, 23.34% ~ 34.78%, 9.96% ~ 10.65 %. The radiation interception rate and radiation utilization rate were 7.29% -13.75% and 14.86% -18.93% higher than those of the other two varieties respectively.