越橘品种美登的光合特性和果实品质分析

Analysis of Photosynthetic Characteristics and Fruit Quality of Vaccinium spp.

本文以4年生越橘品种美登为试验材料,研究其光合生理特性及果实品质,结果表明:一、美登的光合速率日变化呈双峰曲线,有明显地"午休"现象;蒸腾速率日变化呈单峰曲线,在中午12时达到峰值。水分利用效率日变化呈双峰曲线,上午8时水分利用效率最大,中午12时最小。二、美登的平均单果重和单株产量明显地高于野生越橘,果实品质也明显地优于野生越橘。

Based on 4 years of cranberry breed beauty, as the experimental materials, study the photosynthetic physiological characteristics and fruit quality, the results showed that ： one, the beauty of diurnal change of photosynthetic rate shows bimodal curve, there are clearly ＂ noon break＂ phenomenon; Daily variation of transpiration rate was single -peak curve, peak at 12 noon. Water use efficiency daily variation shows bimodal curve, eight in the morning when the water use efficiency is the largest, smallest 12 at noon. Second, beauty＇s average weight per plant and yield significantly higher than that of wild blueberries, fruit quality is obviously better than that of wild blueberries.