B you 827 (Rice)
The varieties are derived from the combination of male sterile line 803A and Shuhui 527 from the Rice Research Institute of Southwest University of Science and Technology and Sichuan Agricultural University.
The whole growth period of the characteristics was 150.3 days, which was 0.8 days shorter than that of the control Shanyou 63. The plant type was compact, the tillering ability was strong, and the color conversion was good in the later stage. Plant height 118.9cm, long 26.3cm, ear flat grain 161.5, seed setting rate 82.2%, 1000 grain 28.44g. According to the quality determination, 9 indexes reached the second-grade excellent rice standard issued by the Ministry. The resistance to rice blast was 1-6 grade of leaf blast and 3-7 grade of neck blast, which was better than that of the control.
The yield performance participated in the regional trial of Sichuan Province from 2000 to 2001, in which the average mu in 2000 was 568.2 kg, which was 7.25% higher than that of Shanyou 63, and the average yield per mu in 2001 was 570.0 kg, 6.3% higher than that of Shanyou 63, and 569.1 kg per mu in two years. 6.75% higher than the control Shanyou 63. In 2001, the average yield per mu of Shanyou 63 was 574.4 kg, which was 8.61% higher than that of Shanyou 63.
The key points of cultivation are timely early sowing, cultivating multi-tiller strong seedlings, seedling age about 45 days, planting basic seedlings 10-120000 per mu, fertilizing heavy bottom and early topdressing, increasing application of phosphorus and potassium fertilizer, shallow water irrigation, drying the field at the right time, and timely prevention and control of diseases and insect pests.
The suitable planting area is suitable for planting Shanyou 63 in Sichuan Province.
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C you 22 (Rice)
The main results are as follows: (1) Variety source: the medium indica late maturing combination of CA bred by Mianyang Economic and Technical College of C you 22 and CDR22 bred by Provincial Academy of Agricultural Sciences. (2) characteristics: the whole growth period of the combination is 148d, which is 1.2d longer than that of Shanyou 63, plant height is 111.4 cm, ear length is 25.7cm, effective panicle is 169000, spike is 147.5 grains, seed setting rate is 82%, 1000-grain weight is 29.5g, tillering ability is strong, plant type is compact, flag leaves are longer, erect, leaves are dark.
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First of all, 16% of the evil lines are clear to control the "spikelet head" of rice.
For many years, the phenomenon of "spikelet head" (also known as spikelet warping) under multi-variety, multi-planting level and multi-ecological conditions has occurred in large-scale production in Jiangsu and other major rice production areas, which is characterized by small spikes and small glumes. After grain filling, the inner shell is cracked, part of the rice grains are exposed, the rice is small and beige black and brown. The occurrence is particularly serious in the Lixiahe area, coastal area, along the Huaihe River, along the Huaihe River, along the hills and other areas in Jiangsu Province. It is estimated that in recent years, the affected area of Jiangsu Province alone has been about 100000 hectares per year, and the yield of rice has been reduced by more than 100m kg, resulting in cumulative damage to rice production.
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