Near the ear study on photosynthetic characteristics of leaves of different nodesSummaryFor wine grape cultivation and management in order to maintain blade energetic physiological functions, leaf's photosynthetic capacity compared to remain at a high level for a long time, to maximize the manufacturing of photosynthate, and increase production. This experiment to Chardonnay Dolly, and Red Chardonnay beads, and rose incense for material, in greenhouse within on three species grape in ear near different section bit points leaves of light collection characteristics through measurement chlorophyll content, and net light collection rate, and stomatal guide degrees, and cell between CO2, and transpiration rate, related parameter, in data analysis compared Hou, integrated five species parameter data description, in grape growth development process in the, different section bit points leaves of light collection efficiency different, Chardonnay more Li grape 1th, 5 section bit points leaves light collection capacity poor, red Chardonnay beads grape 1th, Section 3 is at the leaf's photosynthetic capacity is poor, rose-3rd, 4 section located in the photosynthetic capacity is poor. With the growth and development of fruit, photosynthetic leaf blades are much less efficient, not a good accumulation of organic matter supply fruit, light and the consumption of tree body energy covering fruit, vine growth in the cultivation and management requires low luminous efficiency of blade thinning can be.Key words: photosynthetic characteristics of grape Festival site
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