Introduction of Jusheng No.1 Grape

Jusheng No. 1 grape is another new seedless grape variety introduced in California after Hongti grape. Very early-maturing, extra-large, natural fruit, without drug treatment, a single grain up to 12 grams, uniform fruit, basically no size, the highest sugar content of more than 20, labor-saving planting, suitable for large-scale planting.

Growth environment of Jusheng No.1

1. Temperature

The lowest temperature for grape growth is about 12 ℃-15 ℃, the lowest ground temperature is about 10 ℃-13 ℃, the optimum temperature for flowering is about 20 ℃, and the optimum temperature for fruit expansion is 20 ℃-30 ℃. If the temperature difference between day and night is large, the coloring and sugar content are better. After the grapes sprout in spring. If the temperature rises quickly, it is easy to cause the branches to grow too long, and the flowering period is easy to be fertilized poorly. In case of spring cold, we should pay attention to applying more phosphate fertilizer and high-carbon organic matter to reduce nitrogen fertilizer as much as possible.

2. Moisture

Grapes have high requirements for water, and strict control of moisture in the soil is a prerequisite for good grape planting. The grape needs more water in the early growth period or vegetative growth period, but in the later growth stage or fruiting period, the root is weaker and needs less water, so it is necessary to avoid injuring the root so as not to affect the quality. Grape bogey Rain Water and dew, rainy years are easy to cause insufficient sunshine, photosynthesis is limited, too much water absorption is easy to cause excessive branch growth and high humidity, easily cause a variety of diseases, such as black pox, gray mold and so on. Therefore, it is best to keep the branches at 40-70 cm as far as possible in the flowering period, and the amount of irrigation in the fruiting period in areas prone to fruit cracking should also be controlled. In water-deficient and drought-prone areas, straw should be covered properly to maintain soil moisture and control the growth of grass.

3. Lighting

The grape must have a certain intensity of light during the normal growth period, but when the light is too strong, especially when the grape enters the hard core stage, sunburn is more likely to occur, so bagging or plant leaves can be used to keep the leaves that can cover the grape fruit as far as possible. When the sunshine is insufficient, it is easy to cause poor Corolla shedding and low fertilization rate at flowering stage; poor flower bud differentiation and more unisexual fruits during flower bud differentiation; overgrown plants and long internodes in growing period. Sterile or unisexual fruit; diseases and poor quality during fruit expansion; poor coloring during ripening and decrease in sugar content.

4. Soil

Although grapes can be cultivated in all kinds of soils (improved), loam and fine sandy loam are the best, and sandy soil has good air permeability. but the ability of fertilizer and water conservation is poor. Loam is between sandy soil and clayey soil. The ability of water and fertilizer conservation is strong, and most of them are fertile. When the grape grows vigorously, it is easy to flowering and parthenocarpy, and when the high temperature and light condition is good, the fruit is good and the yield is high. When the low temperature and sunshine is little, the result is not good, the yield is low; pay attention to drainage at ordinary times, avoid exploratory ploughing, light pruning in winter, more pruning in summer, and spray borax, potassium dihydrogen phosphate and calcium superphosphate and so on. Clayey soil has poor air permeability, but it has better fertilizer and water conservation, slow decomposition and absorption of nutrients, less overgrowth in the initial stage, fewer flowing flowers and unisexual fruits, but it is easy to grow in the later stage of development. although the grain of the ear is large, the sugar content and meat quality are often not very good, so it should be improved by applying more high carbon organic matter or adding a small amount of sand, and the acid soil should be neutralized with appropriate amount of lime.