中国农业大学学报2024，Vol.29Issue(2)：58-65,8.DOI:10.11841/j.issn.1007-4333.2024.02.06
提高绿光占比对黄瓜幼苗形态、光合性状及碳水化合物的影响
Effect of increasing the percentage of green light on morphology,photosynthetic traits and carbohydrates of cucumber seedlings
摘要
Abstract
The aims of this study were to investigate the effects of different green light ratios on the morphology,photosynthetic traits and carbohydrates of cucumber seedlings and select the optimal green light ratio for the growth of cucumber seedlings.Based on the fixed red and blue light ratio of 4:1 and total light intensity of 200 μmol/(m2·s),the green light ratios were set to 10％(G10％),20％(G20％)and 30％(G30％),and the intensities were 60,40 and 20 μmol/(m2·s)to study the changes of growth and physiological indexes of cucumber seedlings under different green light ratios.The results showed that:Increasing the proportion of green light iwithin the appropriate range promoted the fresh weight and dry weight of cucumber seedlings,and the fresh weight of G30％treatment were increased by 29.65％and 29.26％compared with those in G20％and G10％treatments,respectively.Increasing the percentage of green light decreased the stomatal pore area but increased the leaf stomatal density.The pore area of G30％and G20％treatments significantly decreased by 13.17％and 23.05％compared to those in G10％treatment,but the stomatai densities of G30％and G20％treatments increased by 20.22％and 14.66％compared to G10％.Increasing the green light percentage increased its leaf tissue grid-to-sea ratio(P/S),and the P/S values of G30％treatment were significantly higher than those of G20％and G10％treatments by 23.21％and 26.97％,respectively.Increasing the green light ratio also promoted the photosynthetic potential of plants,and the net photosynthetic rate of G30％treatment was significantly higher than that of G10％by 77.37％under the measured light intensity of 1 000 μmol/(m2·s)measured light source.This study provides a basis and reference for plant plant nursery and supplemental light in facilities.关键词
绿光占比/黄瓜幼苗/幼苗形态/光合性状/碳水化合物Key words
green light percentage/cucumber seedlings/seedling morphology/photosynthetic traits/carbohydrates分类
农业科技引用本文复制引用
李雪,赵士文,包星星,杨媛媛,武永军,杨振超..提高绿光占比对黄瓜幼苗形态、光合性状及碳水化合物的影响[J].中国农业大学学报,2024,29(2):58-65,8.基金项目
陕西省技术创新引导专项(2021QFY08-02) （2021QFY08-02）
2021年陕西省千亿级设施农业专项资助项目(K3030821094) （K3030821094）
西藏高原设施蔬菜关键技术创新与集成项目(XZ202202YD0002C) （XZ202202YD0002C）
设施蔬菜瓜果名优品种引进与标准化示范基地建设项目(QYXTZX-AL2023-07) （QYXTZX-AL2023-07）
