A screening experiment of machine-harvested ratooning rice

A simple comparison test of rice cultivation with a planting mode of ratoon and harvest by machine was carried out in 2016, in which, 11 ratooning rice varieties having good planting performance in Jianyang District, Nanping City were used as materials. The results showed that "Yongyou 2640", "Jingliangyouhuazhan" and "Longliangyouhuazhan" were the best used for machine-harvested ratooning rice varieties, the second best one were "Longliangyou 1212", "Liangyou 688" and "Liangyou 332". Yield of these six varieties were 1075.0 kg, 955.0 kg, 935.0 kg, 921.7 kg, 891.7 kg and 882.3 kg, respectively, showing regular population, high percentage of ear-bearing tiller, good comprehensive characteristics and high quality and could be extended as machine-harvested ratooning rice varieties.