Effects Of Different Planting Densities On The Chardonnay Grape Growth And Quality

In order to explore appropriate screening Ningxia light, heat, water, air, fertilizer and soil conditions of grape planting densities, building good grapes group, provide a scientific basis for the upgrade and subsequent industrial development in Ningxia grape industry. In this experiment, Warm Springs Farm in Ningxia 5-year-old Chardonnay grapes as test materials, determined 0.3 X 3.0m(Ml),0.6×3.0m(M2),0.9×3.0m (M3),1.2×3.0m (M4)four kinds of planting mode. Every 10d measuring rod diameter main, branch diameter, shoot and auxiliary shoot length, ear growth and chlorophyll content of different parts after flowering, fruit every 10d measuring volume, single fruit weight, fruit shape index, and soluble sugar after flowering, reducing sugars, sucrose and fructose, maturity every 10d of titratable acid, soluble solids (Tss), total phenols and other indicators were measured, were measured flowering, fruit enlargement, veraison and maturity index of photosynthetic characteristics. Under different planting densities Chardonnay growth characteristics and quality indicators. The main results are as follows:1. The main grape planting densities different rod diameter, branch diameter and shoot length decreased with increasing density. Significant correlation grape planting density and production, high density optimum planting density of yield0.6 X 3.0m(M2) under optimum cultivation methods.2. Different planting densities of chlorophyll content, net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (E) increased density tends to decrease, CO2 intercellular concentration (Ci) of wine grapes planted along with the increase of density rises among different planting densities difference was not significant.3. Grapes soluble solids, total soluble sugars, reducing sugars, sucrose, fructose and total phenolic content among different planting densities with wine grape planting density increases. Fruits mature between planting density titratable acidity 0.3 X 3.0m(Ml) up, M2, M3 and M4 between treatments were not significant.4. Different planting densities Chardonnay grapes ear weight, weight, kernel weight and other economic factors decreased with increasing density, grape individual spike as the density increases or decreases no significant change, grape production with increasing the density of the first high, then low,0.6 X 3.0m(M2) planting conditions yield reached a maximum of 625.51kg/acre. wine grapes production among treatments M2>M1>M3>M4.