Introduction to the Characteristics of the Shengli Black Glutinous Rice Variety

This variety was developed by the Downhole Agriculture, Industry and Commerce Company of Shengli Oilfield and the Dongying City Seed Management Station through hybrid systematic selection and breeding, using China 91 as the female parent and Xiangxuenuo as the male parent.

Characteristics: In the Yellow River Delta region, the growth period of this variety is about 165 days; plant height is about 1 m, plant type is compact, leaf color is dark green, and the flag leaf is relatively long and large; the tip of the coleoptile, ligule, leaf tip and internode below the panicle are all purple. As for panicle color, it is green at the beginning of heading, turns purple after grain filling, and the glume is light brown after maturity; panicle length is 2O-23 cm, grains per panicle are 110-140, seed setting rate is 85%, 1000-grain weight is about 26 g, and the seed coat is black and shiny; tillering ability is relatively strong, it is lodging resistant, salt-alkali tolerant, and resistant to rice blast, with slight susceptibility to sheath blight; brown rice has extremely high nutritional value and is an ideal black health food. According to measurements by the Central Laboratory of the Shandong Academy of Agricultural Sciences, the crude protein content is 8.36%, crude fat content is 1.68%, ash content is 1.28%, vitamin B1 and B2 content per 100 g is 0.31 mg (2.8 times that of ordinary varieties) and 0.16 mg, Zn and Fe content per 1 kg is 23.5 mg and 116.Omg (2.1 times and 20 times that of ordinary varieties), and phosphorus content reaches 0.27% (more than 40 times that of ordinary varieties). The total content of 11 amino acids reaches 7.83%, 40% higher than ordinary varieties; the straw and glume are rich in pigments and are good raw materials for extracting natural pigments.

In 1993, it participated in the Dongying City rice variety regional trial, with an average yield of 550.8 kg, ranking first among 14 tested varieties, increasing yield by 3.1% compared with the control China 91 and by 30.0% compared with Xiangxuenuo; in 1994, in production demonstrations on medium- and high-fertility and high-water plots, the average yield was 539 kg; in 1997, on 96.7 hm2, the average yield was 510 kg. From 1998 to 1999, in the Shandong Province special-use rice regional trial, the average yield per mu was 552.3 kg, an increase of 14.1% compared with the control Jingyin 119; in the 1999 production trial, the average yield per mu was 578.5 kg, an increase of 11.3% compared with the control.

Breeders: Downhole Agriculture, Industry and Commerce Company of Shengli Oilfield, Dongying City Seed Management Station

Region and Techniques 1. Raise seedlings at the proper time. Before sowing, treat the seeds well. Raise seedlings in mid-to-late April, with a seedling age of 28-35 days, and transplant around May 25. For dry seedling raising and sparse planting, it may be appropriately delayed. 2. Reasonable density. The basic number of seedlings per mu is about 50,000 plants, row spacing is 25-30 cm, hill spacing is 12-15 cm, the maximum tiller number should be controlled at about 300,000, and the number of panicles per mu should be controlled at about 250,000. 3. Fertilizer and water regulation. Apply sufficient basal fertilizer; per mu, 3-4 m3 of high-quality farmyard manure and 5Okg of superphosphate may be used. Topdress according to growth conditions, applying 25-4Okg of urea per mu, with tiller fertilizer, panicle fertilizer and grain fertilizer applied at a ratio of 2:2:1. Attach importance to potassium fertilizer; generally apply 2-5 kg of potassium fertilizer per mu, with half at the seedling stage and half at the young panicle differentiation stage; for water management, follow the principle of "promoting early, controlling in the middle, and protecting later," achieve shallow transplanting and deep protection, shallow tillering, dry-wet seedling control, keeping water during booting, heading and flowering, and moist irrigation during grain filling. 4. Timely control rice planthoppers, rice stem borers and sheath blight.