Hybrid Seed Production Technique in Greenhouse

Tomato hybrids have a strong growth potential, strong resistance, high yield, and early maturing, and are welcomed by vegetable farmers. Therefore, it is of great significance to seize the high quality and high yield of tomatoes. First, timely sowing and cultivation of strong seedlings 1. Sowing period: The majority of the parent varieties of late-maturing varieties, to cultivate age-appropriate seedlings, to enable it to provide enough pollen in early May. Early sowing should be appropriate. Generally, mid-shed seedlings should be sown in early December. The maternal varieties should be divided into early and mid-maturing varieties. Medium-maturing varieties should be sown in late December and early-maturing varieties should be sown in early January. 2. Seeding and transplanting seedlings: Appropriate dilute sowing, seeding about 10 grams of dried seeds per square meter of seedbed, 0.5 centimeters thick after sowing. After the seedlings are unearthed, the cover is removed in time. Prevent slender seedlings. Unearthed 10 days after transplanting seedlings, seedlings 7 cm away. The parent breed ended the seedlings in early February, and the female breed ended the seedlings before the end of February. Sowing, transplanting seedlings, and seedlings should be paved with warming lines to prevent freezing seedlings and yellow seedlings caused by low temperature and continuous rain. If there is continuous rain during the seedling period, precautions should be taken. 3. Strong seedling standard: Parental seedling age 90 days, maternal seedling age 75 days, seedling height 15 to 20 cm 6 to 8 large leaves, green, thick stems, root and white, Disease-free. Second, colonization and pre-management 1. Colonization: 15 days before colonization, the middle shed film is buckled. The shed soil should be turned white. Before the construction of the quail, the mother-family species should be given enough fertilizer. The quality organic fertilizer should be 3,000 kg per mu, and the vegetable compound fertilizer should be 30 kg. The parental cultivar needs less fertilizer, which can be determined according to the plots. A 30-cm deep ditch is opened around the shed. The walkway within the shed is 15 cm deep. However, it is inconvenient to use when it is too deep. There are 1.5 meters of Qilian Ditch, 4 feet of 6-meter shed, 2 rows of each pod, 27 cm of plant spacing, and 3300 cultivars per mu. 2. Management: The parental variety was planted before March 15 and the female parent was planted in late March. Seven days after colonization, try to increase the temperature and promote rooting. Gradually increase the amount of ventilation afterwards to promote robust plants, should be appropriate to control the fertilizer and water, so as to avoid excessive humidity in the shed and get sick. The temperature of the parent variety can be increased to promote plant growth. In order to increase seed production, parents should leave more than two lateral branches (first inflorescence), and the specific number varies with species. If the female parent of the early maturing cultivar is overgrown, the main stalks can be removed and one more lateral branch can be added to increase the lateral branches and the population density can be greatly increased. Capping at the right time is a key measure. The parental variety can be removed from all axillary buds and apical buds in late April to concentrate the nutrients in the inflorescence. Large varieties of leaves can be part of the leaves removed to promote early flowering, flourishing flowers, pollination should not be spraying more than 10 days after the start, so before the pollination began to spray a drug to prevent disease. Third, the pollination time and method 1. Time: May is the most suitable pollination time for greenhouse tomato planting, in recent years, the temperature gradually increased, can be appropriately advanced. 2. Method: When the male was removed, the malformed flowers and the thin flowers were removed. The buds were used to castrate the male flowers and pollination was conducted every 2 days. Fourth, the post-management 1. Fertilizer management: After cross-pollination, it is timely to top-dress. In June, the temperature is relatively high, and there is a large amount of evaporation in the shed. The water should be often irrigated to promote fruit enlargement. 2. Disease prevention: Diseases of tomatoes left in the greenhouse are relatively light, but they should also pay attention to disease prevention, and pesticides should be used alternately. 3. Harvest: In late June, the tomatoes were gradually cooked and harvested in time. The picked tomatoes should be cooked for a few days, and the tomatoes should be smashed in a bucket for continuous sunny days and fermented for 1 day. Deep-seeds should be carried out in the morning and the seed surface moisture should be dried on the same day.

Low Pesticide Goji Berry, also called EU standard Goji Berry. Ningxia goji berry enjoys a great fame around the global due to its high quality standard; meanwhile, it is the only protected product of geographical identity in China, goji berry has a great popularity describes as "goji berry of the world is in China, goji berry of China is in Ningxia and Ningxia's goji berry is the best".

1.Type Genus: Multi-branched deciduous shrub of Solanaceae Lycium

2.Another name: wolfberry, red berry, red pendant, blood berry, eye-brighten berry, Tzi-fruit, hoof berry, milk berry, immortality grass, sky-essence grass, wolfberry

3.Biology Character: illumination preferable, saline-alkali tolerance, fertilizer tolerance, drought-resistant, water stain should be sustained.

4.Medicinal Parts: goji berry/ goji berry leaves, goji berry roots. low pesticide goji

Low Pesticide Goji Berry

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