Jiahe Zaozhan (Rice)

Jiahe Zaozhan Department was developed by the Rice breeding Group of School of Life Sciences of Xiamen University by combining sexual hybridization with the original "Rice mature Pollen irradiation Mutagenesis Technology" (won the second prize for scientific and technological progress in Fujian Province). The first late-maturing and early-brushing variety in Fujian Province, which meets the national standard of high-quality edible rice, was cultivated by pedigree. It is an early brush variety recognized by the 99 China International Agriculture Organizing Committee as a "famous brand product" and won the second prize for scientific and technological progress in Xiamen in 1999. The hybrid combination: E94 / Guangdong large seed / / 713 Greater / external introduction 30 (mature pollen was irradiated by γ-ray 9.3Gy). Jiahe Zao accounts for 125 days of the whole growth period, plant height is 100 to 105 cm, plant type is moderate, leaf color is light green, glume tip is colorless, ear length is 20 cm, grain density is 44 grains / 10 cm, seed setting rate is 90%, grain is slender, 1000-grain weight is 26.8 g, general yield per mu is about 400 kg. Jiahe Zaozhan is a good quality early axle variety with good combination of high quality and high yield. From 1997 to 1999, Fujian and Jiangxi provinces cumulatively popularized more than 500,000 mu, of which Fujian Province demonstrated 60400 mu in 1998 and more than 420000 mu in 1999. Zhejiang, Guangxi, Hunan and Hubei provinces have been introduced and tried out successively.

The quality of this variety is good. According to the analysis of the Rice and Product quality Supervision and Inspection Center of the Ministry of Agriculture, early rice meets the national standard of second-class high-quality edible rice, and late-season rice meets the national first-class standard of high-quality edible rice. the result of comprehensive evaluation of rice quality is obviously better than that of the domestic high-quality control variety "Zhou 903". This variety of rice is suitable for drying and porridge, has good palatability and is very popular. Jiahe Zaozhan is resistant to rice blast, resistant to bacterial blight and susceptible to sheath blight. It is suitable to be planted in early and late seasons in mild disease areas and disease-free areas south of latitude 28 degrees.

Rice breeding Group, School of Life Sciences, Xiamen University

Region and technology this variety is the main variety to improve the quality of early rice in Fujian Province. because of its excellent rice quality, it is deeply welcomed by the masses, and the price per kilogram of rice is 15% to 40% higher than that of ordinary early rice. The benefit can be increased by 566,100 yuan per mu. It is expected that the annual promotion area in Fujian, Jiangxi and other provinces will reach 1 million mu in the future, resulting in huge economic and social benefits.

Cultivation rules:

1. Sow seeds at the right time, cultivate strong seedlings in southern Fujian, sow in early March, and the seedling age is no more than 30 days. The sowing rate of seedling field is 50-60 kg per mu, and the seed consumption of Honda is 4-5 kg per mu.

two。 Properly close planting, transplanting basic seedlings in the first ten days of April, transplanting specifications of 16.7cm × 16.7cm or 16.7cm × 20cm, 4 × 5 seedlings per clump, 80 000 ~ 100000 seedlings per mu and 18000 seedling clusters.

3. The fertilization principle of head attack, middle control and tail protection is to apply 1012kg of pure nitrogen, 3 ~ 4kg of phosphorus pentoxide and 6kg of potassium chloride per mu. Nitrogen fertilizer according to base fertilizer: capsule fertilizer: panicle fertilizer at 4:4:2; phosphorus fertilizer as base fertilizer and tiller fertilizer; potassium fertilizer mainly as tiller fertilizer. Tiller fertilizer was applied twice 15 days after transplanting. Compound fertilizer is the main method to apply panicle fertilizer in the second stage of young panicle differentiation. After heading, combined with insect control, topdressing outside the root, with 0.25 kg of potassium dihydrogen phosphate per mu.

4. Save water, adhere to shallow water tillering in reasonable irrigation, and roast the field 20 days after transplanting. The maximum number of tillers is less than 300000, and there are 210000 ~ 230000 ears. Intermittent irrigation after roasting the field. The harvest is more than 95% mature, and the dry field is cut off a week before harvest.

5. Timely control of diseases and insect pests, elimination of rodent pests, timely prevention and control of all kinds of insect pests according to the reports of local plant protection departments. Attention should be paid to the control of rice blast and sheath blight. Rats do particularly serious harm to high-quality rice. From ploughing to harvest, they have to work together, release poison erbium or use other methods to eliminate rodent damage.

It was bred in 1996 and approved by Fujian crop Variety approval Committee in March 1999 after two years' regional test in Fujian Province.