Question: What type of rice varieties does Ning 7021 belong to? Is Zhendao 461 a late maturing medium japonica rice variety?
Ning 7021 and Zhendao 461 are two late rice varieties.
Tip: Zhendao 461 is a new rice line developed by the Zhenjiang Agricultural Science Institute in the hilly area of ​​Jiangsu Province. Its variety rights have been transferred to Jiangsu Tomorrow Seed Industry Technology Co., Ltd. According to relevant data, the strain participated in the regional trial in Jiangsu Province in 2008, with an average yield of 626.28 kg per mu, ranking second in the test, and an increase of 5.74% compared with the control Huaidao No.9, reaching a very significant level (654.7 kg per mu, Xinghua). The first one); participated in regional trials in Jiangsu Province in 2009, with an average yield of 652.9 kg per mu, ranking the first in the test, and an increase of 9.51% compared with the control Huaidao No.9, reaching a very significant level (73 kg per mu in Xinghua, ranking No.1). Two). The strain has a total growth period of 154 days (Xinghua point 159 days), which is comparable to or shorter than 2 days for the control; the plant height is 100.8 cm, which is 4.3 cm shorter than the control, the plant type is compact, the population is well-ordered, and the color is mature during the mature period. The tillering force and the percentage of spikes were medium and the ear shape was medium and large; the effective ear per mu was 208,000, the number of grains per panicle was 122.5, the grain weight was 28.5 g, and the mid-grainness was moderate. The lodging resistance was good. Field disease resistance performance: seedling rice blast 0, panicle blast 0-2, bacterial leaf blight 0, sheath blight 1-3, rice smut 0-2, bastard disease, base rot, The ear sprouts without germination, the stripe disease is light, and the incidence of black-streaked dwarf disease is 0 to 23.7%. Inoculation identification: 6 physiological races of rice blast are all grade 0; four races of bacterial blight are grade 5, grade 5, grade 5, grade 3; panicle blast grade 2, high senile sheath blight, The incidence of stripe leaf blight at Jingjiang point is 2.3%, high resistance.
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