Jiayou 99 (Rice)
Variety characteristics: this combination, bred by Jiaxing Academy of Agricultural Sciences, is an indica hybrid combination. It has been planted in our city for two years. The whole growth period of this combination is 154 days in 2001 and 148 days in 2002. The plant height is 121 cm, the panicle type is large, the total grain per panicle is 228, the seed setting rate is about 75%, the 1000-grain weight is 27.9 g, the resistance is good, the flag leaf is very good, the green stalk is yellow, the late ripening phase is good, the yield is good, the rice quality is excellent, the yield ranks first in the trial planting in this city in 2002, the yield per mu is 641 kg, which is 60.22 kg higher than that of Xieyou 9308. The ear-grain structure index of 600kg per mu was as follows: the number of clusters per mu was 14000, the highest seedling was 220000, no more than 250000, effective panicle 14-150000, full grain per panicle 160grains, 1000-grain weight 26-27g.
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Jiazao 312 (Rice)
Variety source: provincial approval of Jiazao 935/Z9505//Z96-10: characteristics approved by Zhejiang crop Variety approval Committee in 2003: this variety belongs to indica conventional rice. The average growth period of early rice in the middle and lower reaches of the Yangtze River is 110d, which is 2.2 days later than that of Jiayu 948 and 1.2 days earlier than that of Zhejiang 733. The plant height is 81.5 cm, the plant type is moderate, the cold tolerance at seedling stage is strong, the population is neat, the flag leaf is straight, the tillering ability is weak, the panicle grain weight is coordinated, and the color conversion is better in the later stage. Effective panicles per mu
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Jia 33 (Rice)
The plant type is compact, the growth is prosperous, the panicle type is medium, the tillering ability is strong, the leaf color is dark green, the population uniformity is good, the late ripening color is good, and the lodging resistance is strong; in inoculation identification, it is susceptible to bacterial blight, panicle neck blast and sheath blight; stripe blight is 86.3% in field planting identification from 2005 to 2006 (the two-year average incidence rate of the susceptible control is 87.6%). The quality was tested by the Food quality Inspection Center of the Ministry of Agriculture in 2006, the rate of head rice was 66.4%, the rate of chalky grains was 29.0%, the degree of chalkiness was 3.7%, and the gel consistency was 70.0 mm.
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