森林工程2026，Vol.42Issue(1)：44-54,11.DOI:10.7525/j.issn.1006-8023.2026.01.005
不同LED补光处理下蓝莓光合与养分重吸收的特征及其对花芽质量的影响
The Characteristics of Photosynthesis and Nutrient Resorption of Blueberry under Different LED Supplementary Light Treatments and Their Effects on Flower Bud Quality
摘要
Abstract
In order to solve the problem of poor flower bud growth caused by insufficient light in autumn under facility cultivation conditions,four-year-old blueberry'Liberty'container seedlings were used as materials,and LED lights were used as light sources.Setting different light intensity,light quality(red and blue light ratio)and photoperiod,a three-factor and three-level orthogonal test,and greenhouse natural light was used as a control.The chlorophyll content,gas exchange parameters,and nutrient resorption efficiency of nitrogen(N)and phosphorus(P)in different periods were measured.The weight and morphological indexes(transverse diameter and length)of flower buds were used to study the characteristics of photosynthesis and nutrient resorption of blueberry under different light conditions and their relationship with flower bud quality.The results showed that the photosynthetic capacity of blueberry was different under different light treatments after three weeks of supplementary light.The net photosynthetic rate of blueberry was the high-est under low light intensity(300 μmol/(m2·s)),medium or low red and blue light quality ratio(1∶1 or 1∶3),me-dium or short photoperiod(7.5 h or 6 h).The nutrient resorption efficiency of blueberry under different light treatments was different after two weeks of stopping light supplementation.Under the light conditions of medium light intensity(450 μmol/(m2·s)),high red and blue light ratio(3∶1)and short photoperiod(6 h),the nutrient resorption efficiency of nitrogen(N)and phosphorus(P)was the highest.The quality of flower buds was better under the conditions of high light intensity(600 μmol/(m2·s)),medium or low red and blue ratio(1∶1 or 1∶3),medium or short photoperiod(7.5 h or 6 h)or medium light intensity(450 μmol/(m2·s)),high red and blue ratio(3∶1)and short photoperiod(6 h).Different light treatments can affect the quality of flower buds by regulating the photosynthesis and the nutrient re-sorption efficiency of N and P in late-season blueberries.The effect of nutrient resorption efficiency on flower bud quality was greater than that of net photosynthetic rate,and the effect of N nutrient resorption efficiency on flower bud quality was greater than that of P nutrient resorption efficiency.Based on the effects of photosynthesis and nutrient resorption on flower bud quality,it was concluded that medium light intensity(450 μmol/(m2·s)),low red and blue light ratio(1∶3),and short photoperiod(6 h)were most beneficial to improve the flower bud quality of blueberries.关键词
蓝莓/光照/光合/养分重吸收/花芽Key words
Blueberry/light/photosynthesis/nutrient resorption/flower bud分类
农业科技引用本文复制引用
李晶波,张亦鹏,刘名昱,周丽萍,何丹娆,张鹏..不同LED补光处理下蓝莓光合与养分重吸收的特征及其对花芽质量的影响[J].森林工程,2026,42(1):44-54,11.基金项目
黑龙江省学科协同创新项目. （）
