水稻品种皖垦粳10号的选育及高产栽培技术OA

This paper mainly analyzed the breeding process,agronomic characteristics and high yield cultivation techniques of the rice variety Wankengjing No.10.This variety was bred through hybridization with Wankengjing No.3 as the female parent and Huyunjing 4326 as the male parent.It was approved by the National Crop Variety Approval Committee in 2025(Guoshendao 20253007).When planted as single-cropping late rice in the middle and lower reaches of the Yangtze River,the variety achieves an effective panicle number of 194 000 panicles/667 m2.Its rice grain quality meets the Grade Ⅰ standard specified in NY/T 593-2021 Quality of Edible Rice Varieties,and it is moderately susceptible to rice blast,bacterial leaf blight and rice stripe disease.In the regional trials conducted from 2020 to 2021,its average yield reached 658.5 kg/667 m2,an increase of 4.8%compared with the control variety Jiayou No.5.The high yield cultivation techniques are summarized as follows:when planted as single-cropping late rice in the middle and lower reaches of the Yangtze River,sowing is suitable from late May to early June.The seeding rate is 15 kg/667 m2 in seedling fields and 3-4 kg/667 m2 in field production.Robust seedlings are cultivated by wet seedling raising or dry seedling raising.Transplantation is carried out at a leaf age of about 5.0 leaves and a seedling age of 20-30 days.Fine land preparation is required before transplantation,with a planting spacing of 15.0 cm×20.0 cm.Fertilization follows the principle of promoting at early stage,stabilizing at middle stage and supplementing at late stage.The pure nitrogen application rate is 18-20 kg/667 m2,and the ratio of nitrogen,phosphorus and potassium is maintained at 1∶0.5∶(0.8-1.0).After transplantation,a shallow water layer of 3-5 cm is retained,and water supply is cut off 7-10 days before harvest.Appropriate pesticides are adopted for disease and pest control:tricyclazole and isoprothiolane are used to prevent and control rice blast;zinc thiazole and bismerthiazol for bacterial leaf blight;imidacloprid and thiamethoxam for rice stripe disease.Chlorantraniliprole and emamectin benzoate are applied to control stem borers and rice leaf roller.Harvesting is conducted on sunny days when the rice maturity reaches about 90%.The grains are dried in a timely manner and stored after the moisture content is reduced to 13.5%.This study provides a theoretical and technical reference for the large-scale popularization and application of Wankengjing No.10 in the middle and lower reaches of the Yangtze River.