High Quality Natural rice seed

Wanyou 66 rice seed, an indica three line hybrid rice, was bred by Chongqing Three Gorges Academy of Agricultural Sciences, and is suitable for growing one season of medium rice in areas below 800 meters above sea level in Chongqing.

Characteristics:

This variety belongs to medium indica late maturing three line hybrid rice. Planting medium rice at the density of 12000-15000 nests of seedlings per mu, the whole growth period of the area below 400 meters above sea level is 142-153 days, and 149-171 days above 400 meters above sea level, with an average of 152.9 days, 3.9 days shorter than the control Ⅱ You 838. The average plant height is 110.3 cm, the plant height is moderate, the tightness of plant type is moderate, and the tillering ability is strong. The number of effective panicles per mu is 149500, the number of flat grains per panicle is 169.3, the seed setting rate is 87.3%, and the 1000 grain weight is 27.9 g. Resistance to rice blast: comprehensive evaluation grade 3, medium resistance in resistance evaluation. Main indexes of rice quality: brown rice rate 79.1%, head rice rate 53.2%, length width ratio 2.7, chalky grain rate 59%, chalkiness 7.4%, gel consistency 76 mm, amylose content 24.6%. It belongs to common hybrid rice.

Yield performance:

In the two-year regional test, 13 points increased yield and 1 point decreased yield, with a yield range of 529.0~638.05 kg. The average yield per mu was 582.26 kg, 6.2% higher than that of the control Ⅱ You 838. In the production test in 2013, the average yield per mu was 549.5 kg, 5.9% higher than that of the control Ⅱ You 838. The yield increase point rate of two-year regional test and production test was 94.4%.