粳型三系杂交水稻‘申优26’的选育及其栽培技术

杂交水稻因利用杂种优势提高水稻产量和品质,被称为现代农业科学的主要成就之一。目前杂交粳稻存在产量竞争优势不强、生育期偏长,生态适应范围窄、稻米品质有待改善等问题。选育同时兼顾产量、生育期、品质等特性的新组合将有利于杂交粳稻的发展。‘申优26’是上海市农业科学院以BT型粳稻不育系‘申9A’和恢复系‘申恢26’配制的粳型三系杂交稻。2015-2016两年区域试验平均产量为10751.3 kg/hm^2,比对照‘花优14’增产7.5%,2016年生产试验平均产量10069.5 kg/hm^2,增产2.6%。‘申优26’具有产量优势强、成熟期早、稻米品质优异、适宜种植范围广等优势,已于2017年通过上海市农作物品种审定委员会审定,其审定编号为沪审稻2017001。适合在上海全郊区、江苏省南部、浙江省北部、安徽省南部等地作为单季晚稻或早茬口双季晚稻种植。本研究介绍了其选育过程、品种特性以及主要栽培技术。

Characteristics and Key Cultivation Techniques of New Japonica Three-line Hybrid Rice'Shenyou26'

Hybrid rice is one of the main achievements of modern agricultural science for its improvement of rice yield and quality by using heterosis.At present,there are some limitations in Japonica hybird rice,such as low yield competitive advantage,long growth period,narrow ecological adaptation range,and poor rice quality.Breeding new combinations with high yield,suitable growth period,and superior quality will be beneficial to the development of Japonica hybrid rice.'Shenyou26'is a Japonica three-line hybrid rice bred by Shanghai Academy of Agricultural Sciences.It is a new combination with'Shen9A'as sterile line and'Shenhui26'as restorer line.For two-year regional trials,the average output was 10751.3 kg/hm^2,which was 7.50%higher than the control variety'Huayou14'.For the one-year production trial,the average output was 10069.5 kg/hm2,which was 2.6%higher than the control variety'Huayou14'.'Shenyou26'has the characteristics of early maturity,high yield,high quality,and strong adaptability.It was approved by the Crop Variety Certification Committee of Shanghai in 2017.It was suitable for single cropping late rice or double cropping late rice planting in Shanghai,southern Jiangsu,northern Zhejiang and southern Anhui.This study introduces the breeding process,variety characteristics and main cultivation techniques of'Shenyou26'.