摘要
以菜用甘薯(Ipomoea batatas L.)品种福薯18、鄂薯10号和黄金叶为试验材料,于栽植后第20天进行0(CK)、30%、50%和70%遮阴处理模拟光伏农业条件,探究不同遮阴度对菜用甘薯产量、生理指标和光合参数的影响。结果表明,随遮阴度的增加,3种菜用甘薯茎尖产量明显降低,遮阴对菜用甘薯的产量有显著的负面影响,其中鄂薯10号具有明显的产量优势。遮阴对菜用甘薯的光合反应和叶绿素含量有显著影响,随着遮阴度的增加,3种菜用甘薯的总叶绿素含量升高,净光合速率降低,其中鄂薯10号在重度遮阴下具有更高的光合速率和总叶绿素含量,说明鄂薯10号对遮阴环境的适应性更强。总体来看,适度遮阴有利于菜用甘薯蔗糖含量的升高,而重度遮阴则会影响蔗糖的积累,且遮阴不利于可溶性糖和淀粉的积累;30%和50%的遮阴有助于菜用甘薯总酚、总黄酮和绿原酸的积累,鄂薯10号在适度遮阴下获得较高的酚类物质含量。综上可知,鄂薯10号更适合在农光互补模式下种植。
Taking vegetable sweet potato varieties(Ipomoea batatas L.)Fushu 18,Eshu 10 and Huangjinye as test materials,the effects of different shading degrees on yield,physiological indexes and photosynthetic parameters of vegetable sweet potato were investigated by simulating photovoltaic agricultural conditions with 0(CK),30%,50%and 70%shading treatments on the twentieth day after planting.The results showed that,with the increase of shading degree,the shoot tip yield of three kinds of vegetable sweet potato decreased significantly,and shading had a significant negative impact on the yield of vegetable sweet potato.Among them,Eshu 10 had a obvious yield advantage.Shading had a significant effect on the photosynthetic response and chlorophyll content in vegetable sweet potatoes.With the increase of shading degree,the total chlorophyll content of the three kinds of vegetable potatoes increased and the net photosynthetic rate decreased.Among them,Eshu 10 had a higher photosynthetic rate and total chlorophyll content under severe shading,indicating that Eshu 10 had stronger adaptability to shading environment.In general,moderate shading was beneficial to the increase of sucrose content in vegetable sweet potato,while severe shading affected the accumulation of sucrose,and shading was not conducive to the accumulation of soluble sugar and starch.Shading at 30%and 50%was beneficial to the accumulation of total phenolics,total flavonoids and chlorogenic acid in vegetable sweet potato,and Eshu 10 obtained higher phenolic content under moderate shading.The results of this study indicated that Eshu 10 was more suitable for planting under the agricultural photovoltaic complementary mode.
作者
雷剑
张越华
黄澜
张恒
魏巍
尹安乐
张岩
童正
袁满
任浩然
李强
欧阳秀峰
刘欢
白映光
靳晓杰
王连军
柴沙沙
杨新笋
LEI Jian;ZHANG Yue-hua;HUANG Lan;ZHANG Heng;WEI Wei;YIN An-le;ZHANG Yan;TONG Zheng;YUAN Man;REN Hao-ran;LI Qiang;OUYANG Xiu-feng;LIU Huan;BAI Ying-guang;JIN Xiao-jie;WANG Lian-jun;CHAI Sha-sha;YANG Xin-sun(Institute of Food Crops,Hubei Academy of Agricultural Sciences/Hubei Key Laboratory of Food Crop Germplasm Innovation and Genetic Improvement/Key Laboratory of Crop Molecular Breeding,Ministry of Agriculture and Rural Affairs,Wuhan 430064,China;Huadian Hubei New Energy Co.,Ltd.,Wuhan 430062,China)
出处
《湖北农业科学》
2025年第5期1-4,16,共5页
Hubei Agricultural Sciences
基金
农渔光(林光)互补发电项目生态种植关键技术研究与示范项目(2021420120003603)
薯类产业支撑技术研究与示范项目(2020-620-000-001-007)。
