Characteristics and cultivation technique of super hybrid rice Yongyou 6

The adaptability experiment of introduced super hybrid rice variety Yongyou 6 was conducted in Nanning in 2007-2008.The results of plot and field experiments showed that Yongyou 6 was characterized by early maturing,large panicle,high yield,good grain quality,resistance to lodging and diseases,etc.The whole growth duration of Yongyou 6 was 115-120 days,and was five and ten days earlier than that of the controls Boyou 253 and Zhongzheyou 1,respectively.The average yield was 8731.5kg / hm2 and increased by 10.2% compared to the control Boyou 253.Moreover,the location of increasing yield was 85% in the experiment,and Yongou 6 had the potential of super high yield and suitable for planting as late rice in Nanning.The key cultivation measures included cultivation by cast-transplanting of young seedlings,promoting root for vigorous tillers,high fertilizer with water control,and so on.