Comparative analysis on direct seeding cultivation of 20 early rice varieties in Jinhua
In order to screen out the early rice varieties suitable for direct seeding cultivated in Jinhua,the agronomic traits and yield performance of 20 early rice varieties with direct seeding cultivation were comparatively analyzed in this paper.The results showed that,compared with Zhongzao 39,the whole growth period of Zhongjiazao 17,Yongxian 15,Zhongjiazao 18,Jiayu 25,Yongxian 409,Zhongzu 143,Shunda 135,Zhongzu 53,Zhe 1613,Zhongzu 100,Yongxian 634,Zhongzu 18,Zhe 1702 and Zhe 1708 were shortened by about 1-4 days.Jinzao 239,Shunda 95,Zhongzu 53 and Zhe 1613 showed poor lodging resistance.The yield of Yongxian 15,Zhuliangyou 831,Jinzao 239,Zhongzu 143,Zhongzu 100,Yongxian 634 and Zhe 1702 were increased by 0.1%-4.6%compared with Zhongzao 39.It was concluded that Yongxian 15,Zhongzu 143 and Zhongzu 100 were suitable for direct seeding cultivated in Jinhua,which showed shorter growth period,higher yield and good lodging resistance.
early ricedirect seeding cultivationagronomic traitsyield
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