Shendao 1 (Liaoning Crop Variety Approval [2006] No. 172)
Bred by Shenyang Agricultural University in 1998 through artificial hybridization and line selection using Qiandaijin as the female parent and Shennong 8801 as the male parent. Approved by the Liaoning Provincial Crop Variety Approval Committee in 2007.
Characteristics: This variety has a growth period of about 150 days and belongs to the medium-early maturing group. At the seedling stage, the leaves are dark green and erect; plant height is 95 cm; plant type is compact; tillering ability is medium; the main culm has 15 leaves; semi-compact panicle type; panicle length is 17 cm; number of grains per panicle is 120; 1000-grain weight is 25 g; glume color is yellow-white, awnless. According to the Rice and Rice Products Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture, brown rice rate is 81.6%, milled rice rate is 73.4%, head rice rate is 66.3%, grain length is 5 mm, grain length-to-width ratio is 1.8, chalky grain rate is 6%, chalkiness degree is 0.4%, transparency is grade 1, alkali spreading value is 7, gel consistency is 68 mm, amylose content is 16.9%, protein content is 7.8%, and rice quality is good. Field identification of panicle neck blast showed susceptibility to panicle neck blast.
Yield performance: In 2004-2005, it participated in the regional trial of the medium-early maturing rice group in Liaoning Province, with yield increases at 7 sites and decreases at 3 sites; the two-year average yield per mu was 537.47 kg, 3.74% higher than the control Tiejing 5; in 2006, it participated in the production trial of the same group, with an average yield per mu of 532.3 kg, 5.31% higher than the control Shennong 315.
Key cultivation techniques: Sow in early April, transplant rice seedlings in late May, with row spacing and plant spacing of 30 cm x 13.3 cm, and plant 3 seedlings per hill. Apply 50 kg of standard nitrogen fertilizer, 15 kg of phosphate fertilizer and 20 kg of potassium fertilizer per mu. Transplant in shallow water, tiller with shallow-moist irrigation, and drain the field when enough tillers have developed. Pay attention to the prevention and control of rice blast.
Suitable areas: Shendao 1 is suitable for planting in the medium-early maturing rice areas of eastern and northern Liaoning Province.