中国农业科技导报2025，Vol.27Issue(4)：68-77,10.DOI:10.13304/j.nykjdb.2023.0733
补光光质和基质含水量对黄瓜幼苗形态调节和光合特性的影响
Effects of Supplemental Light Quality and Substrate Moisture Content on Morphological Regulation and Photosynthetic Characteristics of Cucumber Seedlings
摘要
Abstract
In order to clarify the effects of supplementary light quality and substrate water content on the morphological regulation and photosynthetic characteristics of cucumber seedlings,taking greenhouse cucumber seedlings as the research object,the supplementary light quality was set up in 3 treatments including white red ratio 2∶1(L1),full white light(L2),white red blue ratio 2∶1∶1(L3),and the substrate moisture content was set up in 3 treatments including 55%(W1),75%(W2)and 95%(W3),and 75%of substrate moisture content under natural light irradiation was used as control(CK).The effects of different treatments on morphogenesis,growth and photosynthetic characteristics of cucumber seedlings were explored.The results showed that compared with CK,supplementary light significantly changed the morphological indicators,photosynthesis,antioxidant enzyme activity and root activity of cucumber seedlings.Under L1W2 treatment,the plant height of cucumber seedlings was significantly higher than CK,but the maximum leaf area was significantly smaller than CK.When treated with W3,the stomatal conductance,transpiration rate and intercellular CO2 concentration of seedlings under L3 supplementary light conditions were significantly higher than those under L1 and L2 supplementary light treatments.The activities of superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)and the content ofmalondialdehyde(MDA)showed significant differences among different light intensities.The root surface area and root volume increased with the increase of substrate water content under L1 light conditions,and under L3 light conditions,the W2 treatment was significantly greater than the other 2 treatments.Through comprehensive analysis of membership functions,it was found that W1 treatment had the lowest score among various light quality treatments.Among the same water treatment under 3 different light conditions,L3 treatment had the highest score,and L3W3 treatment had the best comprehensive growth characteristics of cucumber seedlings.Above results provided a reference for the optimization mode of supplementing light and irrigation amount for cucumber seedlings.关键词
黄瓜/LED补光/灌溉/形态调节Key words
cucumber/light emitting diode(LED)supplemental light/irrigation/morphological regulation分类
农业科技引用本文复制引用
肖林刚,马艳,王旭峰,邢剑飞,郑剑超,马月虹..补光光质和基质含水量对黄瓜幼苗形态调节和光合特性的影响[J].中国农业科技导报,2025,27(4):68-77,10.基金项目
新疆维吾尔自治区重大科技专项(2022A02002-1) （2022A02002-1）
新疆维吾尔自治区教育厅普通高等学校现代农业工程重点实验室开放课题项目(TDNG2022107) （TDNG2022107）
新疆生产建设兵团第一师阿拉尔市科技计划项目(2022ZB06) （2022ZB06）
新疆生产建设兵团第十二师科技计划项目(SRS2022014) （SRS2022014）
新疆维吾尔自治区公益性科研院所基本科研业务经费资助项目(KY2021129). （KY2021129）
