Hu Renke Zeng Fenghuang Jiang Shouquan Deng Zhifu Liu Lingwu (He Jiashan Original Farm) He 50A is an early three-line CMS line selected from the Hejiashan primary plantation in Hunan Province. The CMS has the characteristics of stable fertility, good flowering habits, high outcrossing rate, and good recoverability. It passed the examination and approval in Hunan Province in 2006. Since 2004, the author has embarked on the purification and small-scale test of the combination, which has resulted in a total of 100 mu of cultivated land and an average yield of 153.9 kg per mu. Through four consecutive years of exploration, we have initially grasped the characteristics of He-50A and the key points of high-quality, high-yield and reproductive technology. 1 main characteristics 1.1 Morphological features The plant height is about 70cm, and the number of the main stem leaves is 13 to 15. The stems are thick and the plant shape is moderately elastic. The leaves are straight, the tillering power is strong, and the spike rate is high. The panicles are large and numerous, and the total number of grains per panicle can reach more than 150 grains and the grain weight is 26.5g. 1.2 Fertility characteristics He 50A is a mid-maturity type of early infestation, and it is insensitive to temperature. The duration of the duration of sowing is affected by temperature. No matter the spring, summer and autumn sowing, the growth period is relatively stable. In spring sowing in northern Hunan (planted in early April), the number of leaves of the main stem is about 13 leaves, and the duration of the sowing is 69 to 71 days; summer sowing (seeding in late June), the number of main stem leaves is 13.6-14.1 pieces, and the Duration 66-68 days. In autumn sowing in Nanning, Guangxi (planted in mid-July), the number of main stem leaves was 13.5 to 13.9, and the duration of the sowing was 66 to 68 days. In Hainan, sowing in mid-January, the number of main stem leaves is about 14 and the duration of the sowing is 7l-72 days. 1.3 Flowering habits He 50A had uniform heading, flowering on the second day after heading, and flowering on the third day. When flowering is more concentrated, the main flower is the afternoon flower. The flowering time is concentrated between 10:30 and 11:30. The stigma is purple, thick, and has strong vitality. It can generally maintain its vitality for 5 to 6 days. The stigma exsertion rate is high, generally 79%, of which the bilateral exposure rate is 58.5%. 2 high quality and high yield breeding technology 2.1 Choose the best heading and flowering period Practice shows that the suitable meteorological conditions for breeding and pollination of three-line CMS are: daily average temperature is 24-28°C, daily maximum temperature is ≤35°C, field relative humidity is about 80%, sunshine is not less than 8 hours, and there is no continuous 3 days Above the rainy and hot weather, there is no wind or breeze. Since He 50A is insensitive to temperature, the duration of the broadcast in the spring reproduction is affected by the temperature, which is very favorable for staggering unfavorable weather for heading and ensuring normal pollination during flowering. According to the meteorological changes in the city over the years, we have been planting sowing seeds in the middle and late April for four consecutive years. The end of June and beginning of July is the safety and pollination period for the He-50A. At the same time, according to the flowering characteristics of He 50A and B, the parents' sowing difference period is generally 5 days. 2.2 Nurturing more people He 50A has a strong tillering ability, and has a high rate of spike formation. It can appropriately reduce the amount of seed used, generally 2 kg for the mu, and 500-600 g for the He 50B. Remaining in Putian, 2-3 days before sowing, plowing and turning the fields, applying sufficient base fertilizer, finely making moist weirs, and sowing the amount of land per mu is controlled at about 8kg. Fertilizers are applied at the same time. Mushi field is used to produce 50kg of cooked cake fat, 15kg of compound fertilizer, 60kg of superphosphate and 10kg of urea. Seedlings are mainly moist before and after the two leaves. One leaf is filled with a thin layer of water, and the top layer is filled with 6 kg of urea per acre. 4 days before transplanting, the husbandry fertilizer will be applied, and the urea and potassium chloride will be applied to each of 3kg. At the same time, the grafting drug will be applied to foster the strong, uniform, homogeneous and multi-mite seedlings, so that the seedlings will be planted with leeches, fertilizers, and medicines. Mud transplanting. Dingmin Pharmaceutical supply Apixaban API and Apixaban Intermediates with high purity and best price. The main products CAS No are as follows: 503612-47-3, 545445-44-1,473927-63-8, 503614-91-3. Sample can be sent if you request. Most of the products are stock available. Also can be custom. Apixaban Intermediates Cas 503612-47-3 ,Apixaban Intermediates,4-Methoxyphenyl Shijiazhuang Dingmin pharmaceutical Sciences Co.,Ltd , https://www.dingminpharma.com
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