广两优676在湖北京山示范表现及超高产栽培技术

广两优676是福建省农业科学院水稻研究所利用广占63-4S与自选强优恢复系福恢676配组育成的籼型两系杂交稻新品种,分别于2013年和2014年通过国家和福建省农作物品种审定。2015年在湖北京山作一季稻示范7.05hm~2,平均每667m~2产量达800.9 kg。田间表现株叶形态好,群体结构理想,穗大粒重,较抗病虫。作超高产栽培技术主要有:统一播种,均播稀播培育壮秧;小苗移栽,拉线开厢浅插;适度密植,确保基本苗数;合理施肥,科学管水,及时晒田;综合防治病虫害。

Demonstration Performance and Super High-yielding Cultivation Techniques for Hybrid Rice Combination Guangliangyou 676 in Jingshan of Hubei Province

Guangliangyou 676, a indica two-line hybrid rice cultivar, was developed from the cross of a bilinear male sterile line Guangzhan 63-4S and the optional strong restorer line Fuhui 676 by the Rice Re-search Institute at Fujian Academy of Agricultural Sciences, and it was registered and released for produc-tion by National and Fujian Province Crop Variety Appraisal Committee in 2013 and 2014, respec-tively. Guangliangyou 676 was demonstrated as single-cropping rice at Jingshan of Hubei province and a total of growing areas of 7.05 hm2 in 2015, indicating the average yield of 800.9 kg per 667 m2. This cultivar was characterized by good plant type, rational population structure, large panicle and grain weight, and better resistance to disease and pests in the field. Key super high-yielding cultiva-tion techniques included: uniform and sparse sowing, raising strong seedlings, transplanting at young seed-lings, shallow growing with pull string and open compartment, moderately close planting, ensure basic seed-lings, reasonable fertilization, scientific management water, timely exposing paddy field to sun, comprehensive prevention and control plant diseases and insect pests.