MySheen

Ii you 802 (Rice)

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, The main results are as follows: (1) Variety source: the young ear of (Minghui 63x Zigui) F2 selected by the Institute of Biotechnology and Nuclear Technology of Sichuan Academy of Agricultural Sciences was treated by Co--- γ-ray and the restorer line Chuanhui 802 bred by anther culture was used as male parent and II-32A as female parent. (2) characteristics: the combination has compact plant type, strong tillering ability, vigorous growth, large panicle and many grains, 153.2-157.2 grains per panicle, seed setting rate 79.96-82.40% and 1000-grain weight 28.

The main results are as follows: (1) Variety source: the young ear of (Minghui 63x Zigui) F2 selected by the Institute of Biotechnology and Nuclear Technology of Sichuan Academy of Agricultural Sciences was treated by Co--- γ-ray and the restorer line Chuanhui 802 bred by anther culture was used as male parent and II-32A as female parent.

(2) characteristics: the combination has compact plant type, strong tillering ability, prosperous growth, large panicle, 153.2-157.2 grains per ear, seed setting rate of 79.96-82.40%, 1000-grain weight of about 28 grams, brown rice rate of 80.0%, milled rice rate of 70.5%, head rice rate of 45.90%, processing and eating quality equal to that of the control, and appearance quality is better than the control. The resistance to rice blast, leaf blast grade 6 and neck blast grade 7, the resistance was better than that of the control. The ability of regeneration was lower than that of Shanyou 63.

(3) yield performance: in the regional test of Sichuan Province from 1994 to 1995, the average yield per mu was 578.8 kg and 556.66 kg, respectively, an increase of 1.3% and 3.93% over the control Shanyou 9, and an average yield of 567.73 kg per mu in two years, 2% higher than that of the control. 59%. In the 1995 production test, the average yield per mu of the five pilot projects was 604.60 kg, an increase of 8.74% over the control. The whole growth period is about 150 days, which is 2-3 days longer than the control.

(4) suitable planting areas: suitable for non-blast and non-ratoon rice areas of one-cropping mid-season rice in our province.

 
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