The Selection Of Early Rice Varieties Suitable For Machine Transplanting

In this study,take early rice varieties,including 6 hybrid rice varieties and 4conventional rice varieties,transplanted by mechanical transplanting.The seedling quality,basic seedling investigation,growth period record,yield and its composition analysis,and rice quality analysis were carried out to study and compare the seedling quality,growth and development process and yield formation of different early rice varieties under the condition of mechanical transplanting,so as to screen the suitable machine The early rice varieties of transplanting provide the basis for the selection of early rice varieties with full mechanization.The results showed that zhongjiazao 17 was the best conventional rice variety,and Zhuliangyou 2008 was the best.The results showed that the three hybrid rice varieties zhonglingliangyou 268,Luliangyou 996 and Zhuliangyou 819 had the highest percentage of seedlings per basket and seedlings per mu.The two varieties,Luliangyou 996 and Zhuliangyou 2008,had the highest number of seedlings per basket and seedlings per mu.The conventional rice zhongxiangzaoxian 45 and zhongzao 39 had the highest number of seedlings per basket and seedlings per mu,and zhongzao 39 had the highest rate of missing baskets.Conventional rice varieties zhongjiazao 17,hybrid rice lingliangyou 104 and Zhuliangyou 2008 turn green slowly,tiller late and mature late;conventional rice variety Xiangzaoxian 45,hybrid rice Zhuliangyou 819 and Zhuliangyou 211 turn green quickly,tiller early and mature early.The theoretical yield and actual yield of early rice machine transplanting were higher than that of hybrid rice.Among the yield and yield indexes,zhongzao 39 was the best with yield of 7.494 T / ha,and hybrid rice zhonglingliangyou 104,Luliangyou 996 and Zhuliangyou 2008 had higher yield,which were 8.07 T / HA and 8.07 T/ ha,respectively 24 T / ha.The results showed that the overall performance of machine transplanting hybrid early rice was better than that of conventional early rice varieties.Among the hybrid rice zhonglingliangyou 104,Luliangyou 996 and Zhuliangyou 2008,zhongzao 39,a conventional rice variety,had the best performance in mechanical transplanting cultivation,which could be used as a reserve variety for the whole mechanized production of early rice.