水培条件下氢肥对小白菜与生菜生长及光合作用的影响  

Hydrogen Fertilizer Promotes the Growth and Photosynthesis of Pakchoi and Lettuce Under Hydroponic Conditions

作　　者：曾祥飞 蒋南[1] 吕春悦 王丹[1] 魏媛 程旭 熊兴耀 胡新喜[1] ZENG Xiang-fei;JIANG Nan;LV Chun-yue;WANG Dan;WEI Yuan;CHENG Xu;XIONG Xing-yao;HU Xin-xi(Hunan Provincial Potato Engineering Technology Research Center,Hunan Provincial Key Laboratory of Vegetable Biology,College of Horticulture,Hunan Agricultural University,Changsha 410128,PRC;Shenzhen Institute of Agricultural Genomics,Chinese Academy of Agricultural Sciences,Shenzhen 440307,PRC;Foshan Kunpeng Modern Agricultural Research Institute,Foshan 528225,PRC)

机构地区：[1]湖南省马铃薯工程技术研究中心,蔬菜生物学湖南省重点实验室,湖南农业大学园艺学院,湖南长沙410128 [2]中国农业科学院深圳农业基因组研究所,广东深圳440307 [3]佛山鲲鹏现代农业研究院,广东佛山528225

出　　处：《湖南农业科学》2025年第2期28-35,共8页Hunan Agricultural Sciences

基　　金：佛山鲲鹏现代农业研究院重大科研任务氢农业计划(KIMA-ZDKY2022005)。

摘　　要：以四季小白菜和意大利生菜为试验材料,用氢肥制成氢水溶液与营养液混合水培,以不加氢肥的营养液为对照,测定小白菜与生菜的生长指标、叶绿素含量、光合参数和生物量等相关指标。结果表明:与对照相比,氢肥处理后小白菜叶片数显著增加;小白菜、生菜叶片SPAD值和叶绿素含量显著提高;小白菜株高、冠幅、根长低于对照,生菜冠幅低于对照,株高、根长无显著差异;小白菜地上部鲜质量和干质量均得到显著提高,但生菜生物量差异不显著,表明氢肥对小白菜生长和生物量有明显促进作用;小白菜、生菜叶片净光合速率、胞间二氧化碳浓度较对照显著提高;生菜蒸腾速率和气孔导度也显著提高;氢肥处理后,小白菜、生菜叶绿素荧光参数均小幅度增加但不显著。综合分析试验结果可知,氢肥处理能增加小白菜叶片数、提高小白菜、生菜的叶绿素含量,促进叶片光合作用,促进小白菜生长发育和提高植株的生物量。Pakchoi and Italian lettuce were cultured under hydroponic conditions in the nutrient solution with or without(control)hydrogen fertilizer.The growth indexes,chlorophyll content,photosynthetic parameters,and biomass of pakchoi and lettuce were measured.The results showed that compared with the control,the hydrogen fertilizer treatment had increased leaves of pakchoi and increased SPAD values and chlorophyll content of pakchoi and lettuce leaves.The plant height,crown width,and root length of pakchoi in the hydrogen fertilizer treatment were lower than those in the control,and the crown width of lettuce in the hydrogen fertilizer treatment was lower than that in the control,while there was no significant difference in the plant height and root length of lettuce between the two treatments.The aboveground fresh weight and dry weight of pakchoi in the hydrogen fertilizer treatment were significantly improved,while there was no significant difference in lettuce biomass,indicating that hydrogen fertilizer promoted the growth and improved the biomass of pakchoi.The net photosynthetic rates and intercellular carbon dioxide concentrations of pakchoi and lettuce leaves,as well as the transpiration rate and stomatal conductance of lettuce,in the hydrogen fertilizer treatment were significantly higher than those in the control.After hydrogen fertilizer treatment,the chlorophyll fluorescence parameters of pakchoi and lettuce increased slightly but not significantly.The results of comprehensive analysis showed that hydrogen fertilizer increased the number of pakchoi leaves and the chlorophyll content of pakchoi and lettuce and promoted photosynthesis,thereby improving the growth,development,and biomass of pakchoi.

关 键 词：氢肥 小白菜 意大利生菜 光合作用 生长发育 无土栽培 

分 类 号：S634.3[农业科学—蔬菜学] S636.2[农业科学—园艺学]