高产籼粳杂交稻浙优21在长汀县种植表现及主要栽培技术

Planting Performance and Key Cultivation Techniques of High-yielding Indica-japonica Hybrid Rice Combination Zheyou 21 in Changting County

浙优21系浙江省农科院作物与核技术利用研究所选育的籼粳亚种杂交稻新品种,2016年通过浙江省农作物品种审定。2020年龙岩市长汀县河田镇和大同镇引进浙优21作中稻种植,表现产量高,杂种优势明显,长势繁茂,茎秆粗壮,大穗密穗,分蘖力中等,后期转色佳、抗病性好等特点,但应注意稻曲病防治。总结了浙优21在龙岩市长汀县的种植表现及主要高产栽培技术。

Zheyou 21 was a new hybrid rice combination derived from indica and japonica interspecific cross,which was developed by Crop and Nuclear Technology Utilization Institute of Zhejiang Academy of Agricultural Sciences and released by Zhejiang Crop Variety Approval Committee in 2016.In 2020,Zheyou 21 as mid-season rice was grown at Hetian and Datong Town of Changting County of Longyan City,showing the characteristics of high yield,obvious heterosis,vigorous growth,sturdy stem,large and dense panicle,medium tillering ability,good color turning at late stage,and good resistant diseases,but should be paid attention to controlling rice false smut.This paper summarized the planting performance and key highyielding cultivation techniques of Zheyou 21 at Changting County of Longyan City.