中国农业大学学报2024，Vol.29Issue(4)：164-172,9.DOI:10.11841/j.issn.1007-4333.2024.04.14
光周期对黄瓜幼苗形态、光合特性及碳水化合物含量的影响
Effects of photoperiods on morphology,photosynthetic characters and carbohydrate of cucumber seedlings
摘要
Abstract
The study was to investigate the effect of photoperiod on morphology,photosynthetic characteristics and carbohydrate content of cucumber seedlings.Under a light intensity of 250 μmol/(m2·s),four treatments of photoperiods of 8 h/16 h,12 h/12 h,16 h/8 h and 20 h/4 h were set to compare the effects of each treatment on cucumber seedlings.The results showed that:The morphological differences of cucumber seedlings after different photoperiod treatments were significant.Their plant height,stem thickness,fresh weight,dry weight and leaf area were all significantly different,and the plant height,stem thickness,and total leaf area under the 12 h/12 h treatment were significantly better than the other treatments.As the photoperiod increases,the thickness of various tissues in the leaves increased,and the activity of Rubisco showed a decreasing trend.The 8 h/16 h treatment significantly increased by 66.23％and 82.86％ compared to the 20 h/4 h treatments.The total nitrogen content of cucumber seedlings showed a significant decreasing trend with the increase of photoperiod.The total carbon content under 12 h/12 h treatment was significantly higher than that under 8 h/16 h and 20 h/4 h treatments.The starch content in 12 h/12 h and 16 h/8 h treatments was significantly higher than the other treatments.Taken together,the 12 h/12 h treatment was the optimum photoperiod for cucumber seedling growth.The study can provide a basis and reference for plant factory nursery and supplemental light in facilities.关键词
黄瓜/光周期/光合/碳水化合物含量Key words
cucumber/photoperiod/photosynthesis/carbohydrate content分类
农业科技引用本文复制引用
李雪,赵士文,包星星,武永军,杨振超..光周期对黄瓜幼苗形态、光合特性及碳水化合物含量的影响[J].中国农业大学学报,2024,29(4):164-172,9.基金项目
陕西省技术创新引导专项(2021QFY08-02) （2021QFY08-02）
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）
2021年陕西省千亿级设施农业专项(K3030821094) （K3030821094）
