Shengtai No. 1 (Rice)

Shengtai No. 1 is a new variety with high quality, super high yield and disease resistance, which was bred by the cross between Shengyou 2, a super high yield rice variety of Guangdong Academy of Agricultural Sciences, and Thai high quality soft rice variety Taiyin 1.

The characteristic characteristics of Shengtai No. 1 are thick and straight leaves, green color, early growth and early growth in the early stage, green branches and drafts in the later stage, good ripe color, ideal morphological structure of stems and leaves, developed root system, fast elongation rate, deep and wide distribution, strong vigor, no premature senescence, strong fertilizer resistance and lodging resistance. the effect of increasing fertilizer is good. Strong resistance to stress and disease, strong cold resistance at early seedling stage, rice thrips resistance at seedling stage in field, moderate to resistance to rice blast, and moderate resistance to bacterial leaf spot. The tillering ability is medium, the panicle rate is high, the average effective ear per mu is 180000 ~ 230000; the ear grows, the number of grains per ear is more than 23 cm, the average grain number per ear is about 150cm, the average ear length in high-yield cultivation is more than 25cm, the length of main ear is more than 33cm, the total grain number of main ear is more than 500. the seed setting rate is more than 85%, and the weight of 1000 grains is about 23 grams. Shengtai No. 1 has large panicle, fertilizer resistance and lodging resistance. it is planted in more than medium fertility field. The yield of double cropping rice is easy to exceed 500 kg per mu, and the yield potential is more than 700 kg / mu. The yield of planting in medium rice area was higher than that of Shanyou 63 and significantly higher than that of general high quality conventional varieties.

Tested by the Rice and products quality Supervision, Inspection and testing Center of the Ministry of Agriculture, all 12 indexes reached the second grade standard of high quality rice issued by the Ministry, of which 7 main indexes reached the first grade standard of high quality rice, and the content of amylose was about 18%.

Rice Institute of Guangdong Academy of Agricultural Sciences

Regional and technical Shengtai No. 1 can be used for both early, middle and late rice. The whole growth period of early planting in Guangdong Province is 128 days, and that of late planting is about 115 days. In other provinces and cities of southern rice region, the whole growth period of medium rice is 2-5 days shorter than that of Shanyou 63. It belongs to the high-quality variety with large panicle and multi-grain super-high yield, and its super-high-yield potential can be brought into full play when it is planted in the middle and high fertility fields. Because it has the quality of high-quality conventional rice and the yield potential of hybrid rice, it has a wide prospect of popularization and application in the areas of conventional rice and hybrid rice, especially in the middle rice area where sleeve rice and stem rice are staggered.

Cultivation rules:

1. It is suitable for transplanting before and after sowing at the end of February and early March, early maturity in late planting, and transplanting before sowing the Beginning of Autumn in the middle of July; in cultivation, it is suitable for sparse sowing and cultivating strong seedlings, with basic seedlings of 80 000 ~ 100000 and effective panicles of 180000 ~ 230000 ears per mu. The planting specification can be 20 cm × 20 cm or 23 cm × 20 cm.

two。 Under the premise of planting strong seedlings, early application and re-application of early stage fertilizer can promote early, rapid and prosperous tillering, increase the average biological yield per stem in vegetative growth period, create conditions to apply grain-preserving and grain-attacking fertilizer, and determine the amount of fertilizer according to soil fertility conditions and yield indexes. and pay attention to the application of more organic fertilizer, pay attention to the appropriate combined application of nitrogen, phosphorus and potassium.

3. After insertion, shallow water returned to green, thin water tiller, enough seedlings to expose to the field, mainly light exposure, and strive for the leaf color to fade to light green before panicle differentiation. In the later stage, pay attention to filling the horse race water to keep the soil moist until mature.

4. Attention should be paid to the prevention and control of rice blast in areas with serious rice febrile disease. In a word, according to the growth and development phase of Shengtai No. 1, high yield cultivation should adopt "medium population high panicle formation, promoting 'early growth & # 39; deep root, attacking large panicle and multiple grains, protecting aftereffect, striving for high seed setting rate and plumpness".