杂交稻野香优6813的特征特性及产量构成分析

Analysis on Characteristics and Yield Composition of Hybrid Rice Yexiangyou 6813

为鉴定评价野香优6813的丰产性、稳定性、适应性、抗逆性、米质等重要性状,2018年—2019年野香优6813参加了福建省中稻组区域试验。试验结果表明:野香优6813产量中等,稳产性一般,适应性广,感稻瘟病,适宜福建省稻瘟病轻发区作一季中稻种植。产量结构分析表明:每穗粒数对增产的贡献率最大,单位面积穗数对增产的贡献率较大,千粒质量、结实率对增产的贡献率较小。因此,野香优6813的高产栽培关键是在一定穗数的基础上主攻大穗。

In order to identify and evaluate the yield,stability,adaptability,stress resistance,rice quality and other important traits of Yexiangyou 6813,participated in the regional trial of middle rice group in Fujian Province from 2018 to 2019.The results showed that Yexiangyou 6813 has medium yield,general stable yield,wide adaptability,rice blast susceptibility,and is suitable for one season of rice in Fujian Province.The yield structure analysis showed that the number of grains per panicle had the largest contribution rate to yield increase,the number of panicle per unit area had a larger contribution rate to yield increase,and the thousand grain quality and seed setting rate had a smaller contribution rate to yield increase.Therefore,the key of high yield cultivation of Yexiangyou 6813 is to focus on large ears on the basis of a certain number of ears.