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Soybean Jinyi 30 Selected as a 2008 Ministry of Agriculture Recommended Leading Variety
The new soybean variety "Jinyi 30", bred by researchers at the Institute of Crop Genetics of the Shanxi Academy of Agricultural Sciences, was recently selected as a leading variety for nationwide promotion in 2008 by the national Ministry of Agriculture, and is the only variety from our province to be selected. To comprehensively advance the science and technology outreach project and guide farmers in selecting superior varieties and applying advanced, suitable technologies, the national Ministry of Agriculture recommended a total of 80 leading agricultural varieties for nationwide promotion this year. "Jinyi 30" is a large-seeded variety. The plant has thick, sturdy stems, a well-developed root system, and
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What are the easily overlooked problems in the process of selecting and retaining replacement gilts?
(1) The selection and retention procedure is unreasonable, and the selection process is simplified: In some pig farms, the selection and retention process for replacement gilts is very simple, with no fixed procedure. It is only after the breeding pigs finish testing that a simple evaluation is made and they are selected and retained. This can easily lead to an imbalance in the number of animals retained from each bloodline and a decline in the production performance of breeding pigs. Therefore, the selection and retention of replacement gilts must rely on a fixed procedure. Generally, the selection and retention of replacement gilts must go through three processes: primary selection, intermediate selection and final selection. Primary selection is when moving from the farrowing stage to the rearing stage, determining a candidate group 4 times the number to be retained for breeding; intermediate selection refers to the period from nursery to fattening
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How should you select mushroom spawn for high yields when cultivating Agaricus bisporus in paddy fields?
Give priority to granular wheat grain spawn with good yield performance and strong stress resistance, followed by manure-straw bag spawn. To plant 1 mu of field mushrooms, about 400 bottles of wheat grain spawn are needed, with an investment of 800-900 yuan; or 800-1000 bags of manure-straw bag spawn, with an investment of about 1000 yuan. Farmers should be especially reminded that when buying spawn, they must go to a spawn farm with a good reputation.
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How should Gastrodia elata tubers be selected for use as seed?
Gastrodia elata tubers that are undamaged, free of pests and diseases, and not deformed are best for cultivation as seed. However, when seed is in short supply, tubers with minor damage can also be used for cultivation as seed after treatment. The treatment method is: first cut away the damaged part with a knife or bamboo strip, sun-dry the cut surface until it no longer exudes sap, and then plant it; generally it will grow as normal. When large white Gastrodia tubers are cultivated as seed, after 1 year they can become 1 large arrow tuber. When arrow tubers are cultivated as seed for asexual propagation, the "parrot beak"-like mixed bud at the top of the arrow tuber must be broken off, so that the arrow tuber will not produce an arrow (no longer bolt)
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What are the methods for selecting Gastrodia elata fungus strains and Gastrodia elata seeds?
1. Armillaria mellea: Some Armillaria mellea varieties are high-yielding and high-quality, while some varieties instead harm and feed on Gastrodia elata, so farmers must be cautious when introducing strains. Our company promotes the Armillaria mellea a-9 variety, selected by the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, from numerous varieties at home and abroad. Large-scale application and promotion have shown that this variety has strong vitality, dense branching, a high colonization rate, high yield, and high quality, making it the preferred superior variety for cultivating Gastrodia elata. 2. Germination fungus: The germination of Gastrodia elata seeds must rely on the infection of the embryo by fungal hyphae of a Mycena species to provide
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Introduction of new soybean varieties for farmers' reference in seed selection
Xinfeng No. 1 was developed by the Agricultural Technology Extension Station of Hongmiaozi Township, Xinbin County, through sexual hybridization and selection using Chang No. 4 as the female parent and Qunxuan No. 1 as the male parent. It was approved by the Crop Variety Approval Committee of Liaoning Province in December 2002. The variety has a growth period of 121 days and belongs to the early-maturing group. The average plant height is 94.7 cm, with a semi-determinate podding habit and 17.9 nodes on the main stem. The stems are thick and tough, the root system is well developed, and it is lodging-resistant. The leaves are round, the pubescence is gray, and the flowers are white. The pods are grayish-brown, with 59.9 pods per plant, and many pods contain 3-4 seeds. The seeds are yellow with a yellow hilum,
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How to Carry Out Selective Breeding and Breed Conservation in Jian Carp Farming
Any superior breed, if selective breeding and breed conservation are neglected, will often lead to breed degradation, reduced yield and deterioration of other traits. Jian carp has stable genetic traits and can, through within-breed reproduction, pass the superior traits of this breed on to its offspring. However, different carp breeds easily interbreed and become mixed, individuals within the same breed also differ, and the living environment can have a considerable effect on the traits of a breed. Therefore, attention must be paid to selective breeding of superior stock: according to the breed's standards, fish with good traits in all relevant respects should be selected as broodstock for rearing and allowed to reproduce.
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Sources and selection methods of yellow catfish broodstock
Broodstock for artificial breeding can be directly caught and selected from rivers, lakes, reservoirs, ponds and other water bodies; this is currently the common method used by aquaculture units for artificial breeding of yellow catfish. If conditions permit, you can cultivate yellow catfish broodstock yourself and then select from them. When catching broodstock from rivers, lakes, outer waters, reservoirs or ponds, the following points should be noted: Specific requirements ① Broodstock should be caught in autumn and winter, when the water temperature is lower, which is conducive to selection and handling, and especially easy for transporting
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Rice cultivation in cold regions requires water-saving irrigation, selection of improved varieties, making the most of accumulated temperature, and growing strong seedlings
Heilongjiang Province is located in a high-cold region, where heat and water resources are relatively scarce, annual atmospheric precipitation is extremely unevenly distributed, spring is windy with little rain, and drought is quite severe. The author discusses how to achieve water-saving, high-quality, and high-yield rice cultivation in cold regions. 1. Selecting excellent varieties is the prerequisite for ensuring high-quality and high-yield rice. The varieties that rice farmers plant directly affect the quality and yield of rice. Therefore, in production, varieties with a suitable maturity period, excellent quality, stable and high yield, and strong stress resistance should be selected. First, select varieties that have passed national approval, been named, and promoted, which can ensure relatively stable rice traits, steady and rising yields, and safe and reliable use; second, introduce varieties with suitable maturity periods according to different accumulated temperature zones, and never introduce varieties across zones; third, pay attention to seed quality, and select first-grade improved seeds with a purity above 98%, a germination rate above 90%, and a moisture content no higher than 14% for production use; fourth, purchase seeds from nationally certified seed companies, research institutes, and agricultural colleges, and eliminate blind planting; fifth, in actual planting, unify varieties as much as possible, plant in contiguous fields, form scale, and achieve industrialized planting.
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Rice Research Institute of Jilin Academy of Agricultural Sciences selects high-quality rice varieties
At the recently concluded evaluation of high-quality rice varieties (lines) in Jilin Province, "Jigeng 81" and "Jigeng 83", bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences, were rated as "high-quality rice varieties", and another 6 lines were rated as "high-quality rice lines". It is reported that this high-quality rice variety (line) evaluation was the third such event held after 1995 and 1998. The 10 high-quality rice varieties selected in the previous two events have already been promoted and applied on a large scale in production thanks to their good quality and high yield
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