Our company use low temperature fermentation technology,won the United Nations Patent Gold Award, GMP certification, we made the world's first category of wolfberry brewing wine, global initiative, natural food, health drink, to fill gaps in the industry.Goji beverage is more and more popular in the world.
Goji Beverages,Goji Fruit Wine,Goji Wine,Goji Brandy Ningxiahong Goji Industry Group Company Limited , http://www.ningxiahonggroup.com
Tomato cracking causes and prevention
Tomato cracking refers to the fact that when the tomato fruit is ripe, the peel is cracked, and the embryonic tissue and the seed are turned outwards with the peel, making the umbilical part of the fruit as seven-fold like the palm of the cat's claw; some are on the fruit surface or the fruit top near the fruit handle. Or striae cracks on the sides of the fruit. After the fruit cracks, it is susceptible to early blight, late blight, or bacteria rot and loses its value. 1 The cause of fruit cracking is firstly the result of the cracking of the deformed flower style. The generation of malformed flowers is mainly caused by unfavorable environmental conditions during flower bud formation. Under normal management conditions, 25 to 30 days after sowing, plant height 5 cm, true leaf exhibiting 2 to 4 pieces, and when the stem diameter was 2 mm, the growing point started to differentiate flower buds. The flower buds of the second ear were differentiated 10 to 15 days after the first flower buds were differentiated. Here, in case of low temperature, fertility is slow, the flowering node is low, the night temperature is lower than 15°C, and it is easy to form malformed flowers; the daily average temperature is lower than 25°C, the number of flowers is reduced, and the flowers are small. From the flower bud differentiation of seedlings, if the nighttime temperature is below 8°C for 1 week and the temperature is below 20°C during the daytime, the first fruit of the first inflorescence will be deformed. If the first three leaves of the seedlings spread from the first true leaf to the seventh leaf during the unfolding, all of them are at a low temperature. This is followed by the lack of nutrients supplied by the flower vessels when the tomatoes are flowering. In particular, when the flowering period encounters low temperatures, there are fewer photosynthetic products on the leaf surface and less root suction. At the same time, nutrient growth is also required. In this case, the lack of flowering nutrients and malformed flowers are more. The third is that environmental conditions do not apply. The main reason is high temperature, strong light, drought, especially after too long dry water irrigation, the rapid expansion of pulp within the fruit, sugar concentration increased, and thus increased osmotic pressure, rapid expansion of the pulp and the aging of the peel does not fit , and the peel is broken. The fourth relates to the characteristics of the variety. Generally speaking, the varieties with large fruit, round fruit, and cork are more likely to be cracked than those with medium or small varieties, high pile type fruits, and thin cork layers. The fifth is related to the use of growth regulators. In particular, the use of growth regulators to keep flowers, fruit concentration is too large, water and fertilizer can not keep up, but also easy to form abnormal ovary development, or cause a strong local physiological function, causing physiological disorders and fruit cracking. 2 The first prevention and control measures are crack resistant varieties, such as Jin Tomato No.3. The second is when the nursery blossoms, the indoor night temperature can not be too long too long. When the seedlings grow to 2 to 4 true leaves, they have entered the flower bud differentiation stage. The seedbed temperature is maintained at 24 to 25°C during the day, 15 to 17°C at night, the temperature difference is 8 to 10°C, and the ground temperature is 18 to 22°C. It is maintained until the first half of planting. In the month, the seedling grows to 7-9 leaves. Attention should be paid to the improvement of the old habit of cooling immediately after easing the seedlings (though it can prevent leggy, it produces a lot of malformed flowers). Water control method can be used. When the seedling height 15cm began to control the water, if the heart leaf is light-colored, the old leaf dark, indicating that the water is suitable; if the heart leaves, the outer leaves are light green, indicating that the water is too large, easy to grow long; beware of leaves, old leaves When all of them are dark green or dark in the heart, they indicate that they are short of water and they should be watered immediately to keep the heart and leaves pale and the old leaves dark. The third is to cultivate age-appropriate seedlings, promote normal flower bud differentiation, and prevent leggy. The criteria for strong seedlings are: seedling height 20-25cm, stem diameter 5-6mm, leaf color dark green, leaf unfolding, seedling age within 70 days, budding before planting, flowering after about 10 days after planting. The fourth is to turn vegetable fields deeper, increase organic fertilizers, make the roots grow well, buffer the drastic changes in soil moisture, and reasonably water to prevent moisture from drying out and dampness, especially to prevent excessive humidity after prolonged drought. The soil moisture is usually maintained at about 80%. Ventilation holes in greenhouses should be avoided falling into the rain; when the tomato temperature drops sharply after the fall, more attention should be paid to the management of soil moisture to prevent the humidity from changing too quickly. The fifth is to prevent the aging of the skin, in particular, to prevent direct sunlight on the shoulder. When selecting inflorescences and pruning vines, the inflorescence should be arranged on the inside of the support and shading by its own leaves. When the bud is topping, leave two leaves on top of the last ear to shave the ear. Sixth, the correct application of growth regulators, especially when using 2,4-D flower, the concentration should not be too large. In practical applications, after a good match is required, a part of the flower should be tested. After the flower is spotted, it will be rough in 2 to 3 days from the layered part, indicating that the concentration is too large and it should be diluted before use. If it is rough in 3 to 5 days, it is appropriate and can be applied. Seventh, it is supplemented with calcium and boron to regulate the proportion of various nutrients in the soil, without making too much nitrogen and potassium fertilizers, which will affect the absorption of calcium. The time for planting should not be too early, the night temperature should not be too long and the soil should not be too dry to facilitate the absorption of calcium. In the case of calcium deficiency, the foliage may be sprayed with 0.5% borax or boric acid aqueous solution for 7 to 10 days for 2 to 3 consecutive times. Author Unit: Shanxi Qixian Vegetable Service Center