设施栽培中不同光质补光对两个中国樱桃品种生长发育及品质的影响

本研究以设施栽培的中国樱桃诸暨短柄与黑珍珠为试验材料,从果实硬核期到采收期间,分别使用不同功率的LED灯光源、白炽灯光源、商品补光灯光源进行补光,以自然光照作为对照。通过对试材植株生理指标及果实品质指标的测定,发现采用红蓝光比例6:1的LED光源补光显著提高了叶片光合速率并促进了果实发育和果皮着色,功率36 W的LED补光处理使诸暨短柄与黑珍珠果实平均单果重达到2.90 g与2.48 g,可溶性固形物含量达到17.63%与14.67%。LED补光对于促进樱桃营养生长,提高果实品质具有积极作用,是值得研究推广的樱桃产业技术。

Effects of different quality supplementary light on growth and quality of two varieties of Chinese cherry in protected cultivation

Chinese cherry varieties Zhujiduanbing and Heizhenzhu were used as materials in this study. We set up LED light sources with different power, incandescent light source, and commodity light source to treat the plants during the fruit core-hardening stage to the harvest period, and the rest treated with natural light as the control. Through the exploration of the physiologicalSindices of plant and the quality indices of fruit, we found that the red/blue (6:1) LED light supplementation treatment could significantly increase the photosynthetic rate of leaves and promoted the fruit development and coloration. The 36 W LED light supplementation treatment made the average fruit weight of Zhujiduanbing and Heizhenzhu reach 2.90 g and 2.48 g, and made the TSS contents reach 17.63% and 14.67%. LED light supplement plays a positive role in promoting nutrition growth and improving fruit quality of cherries, and it is a cherry production technology worthy of research and promotion.