Zhang Shoupu (Xinjiang Production and Construction Corps Agricultural Fourth Division Seed Company)
The key to affect the yield and quality of hybrid beet seed production is the quality of the parents, the conditions for storage in winter, the control of planting and transplanting in early spring, the de-mixing of Miaotian and mother root, and how to ensure the seed germination rate. In order to increase the yield and quality of hybrid beet seed production, appropriate technical measures must be taken.
1 Key technologies for improving seed quality
1.1 Guarantee the purity of the parent seed
The quality of the parent seed directly affects the quality of the hybrid seed. At present, the parental seeds used in production are generally provided by seed producers. Therefore, the seed production unit should have a clear understanding of the source of the parent seed, and it must be remembered that it is not possible to use unclear parents. Before the seeding contract is signed, the seed-seeking party and the consumer party must sample and seal the parental seed for future reference, and must test the authenticity and purity of the parental seed used to ensure the quality of the hybrid seed.
1.2 Isolation options for farming
Choose land plots that haven't planted sugar beets within 5 years to be the mother root field and plant the fields, and it is better to stay away from the sugar beet production area to prevent human and biological contamination. The production of field blocks requires a flat terrain, convenient irrigation, fertile soil and no high-stem plants around. The production of other varieties of sugar beet seeds cannot be arranged within 16 km2 of this variety production area.
1.3 go to the bad
The beet seed production process is divided into two stages, namely, the maternal root breeding wintering period and the late spring planting production period. The main task of eliminating miscellaneous work should focus on breeding the wintering period in the mother root, that is, removing the abnormal strains in the field based on leaf color, leaf veins, and leaf type of the sugar beet parent at the seedling stage, and removing the abnormal shape according to the shape of the parent root at the time of the mother root harvesting. Roots, and then the human cellar winter. After the strict decontamination of these two periods, the female root is thoroughly decontaminated in combination with the Hunchun transplanting process. In the process of removing impurities, special attention must be paid to the removal of the parental roots. After the planting of spring roots, the field management will be strengthened to ensure that the individual roots of the field grow uniformly and ensure the seed purity.
1.4 Cut off the father
The inflorescence of sugar beet grows indefinitely. When the paternal parental flowering period ends 10 to 12 days and the seeds on the female plants are significantly enlarged, the parent plants are removed in time. The removal of the male parent not only prevents the paternal seed from mixing into the seeds and reduces the purity during harvest, but also facilitates ventilation and light transmission in the field, fully exerts the maternity effect, promotes maturation of the maternal kernels, increases grain weight, and increases seed production.
Tungsten carbide welding bars are commonly used in the oil and gas industry for various applications. These bars are made from a combination of tungsten and carbon, which results in a very hard and wear-resistant material. Here are some specific uses of tungsten carbide welding bars in the oil and gas industry:
1. Hardfacing: Tungsten carbide welding bars are used for hardfacing applications, where a wear-resistant layer is applied to drilling tools, valves, pumps, and other equipment exposed to abrasive environments. This helps to extend the lifespan of the components and reduce maintenance costs.
2. Drill bits: Tungsten carbide welding bars are used to manufacture drill bits for oil and gas exploration. The hard and durable nature of tungsten carbide makes it ideal for drilling through tough rock formations.
3. Wear plates and liners: Tungsten carbide welding bars are used to create wear plates and liners for equipment used in oil and gas production. These plates and liners protect the underlying metal surfaces from abrasion and corrosion, ensuring the longevity of the equipment.
4. Valve seats and seals: Tungsten carbide welding bars are used to manufacture valve seats and seals for oil and gas valves. The high hardness and wear resistance of tungsten carbide ensure reliable sealing and prevent leakage in critical applications.
5. Downhole tools: Tungsten carbide welding bars are used in the manufacturing of downhole tools such as stabilizers, reamers, and drill collars. These tools are subjected to high pressures, temperatures, and abrasive conditions, and tungsten carbide helps to enhance their durability and performance.
Overall, tungsten carbide welding bars play a crucial role in the oil and gas industry by providing wear resistance, hardness, and durability to various components and equipment.
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