种植密度对湖北贝母生长及品质的影响  

Effects of Planting Density on Growth and Quality of Fritillaria hupehensis

作　　者：段媛媛 刘晓洪[2] 唐涛 王帆帆 游景茂 郭晓亮 郭杰 DUAN Yuanyuan;LIU Xiaohong;TANG Tao;WANG Fanfan;YOU Jingmao;GUO Xiaoliang;GUO Jie(Key Laboratory of Biology and Cultivation of Chinese Herbal Medicines of Ministry of Agriculture and Rural Affairs,HubeiEngineering Research Center of Good Agricultural Practices(GAP)Production for Chinese Herbal Medicines,Institute of ChineseHerbel Medicines,Hubei Academy of Agricultural Sciences,Hubei Enshi 445000,China;Hubei Academy of AgriculturalSciences,Hubei Engineering Research Center of Under-forest Economy,Wuhan 430064,China)

机构地区：[1]湖北省农业科学院中药材研究所,农业农村部中药材生物学与栽培重点实验室,湖北省中药材规范化生产(GAP)工程研究中心,湖北恩施445000 [2]湖北省农业科学院,林下经济湖北省工程研究中心,武汉430064

出　　处：《中国农业科技导报》2023年第9期197-206,共10页Journal of Agricultural Science and Technology

基　　金：中央财政林业科技推广示范项目(鄂〔2021〕TG16号);财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-21);湖北省重点研发计划项目(2020BCA059);湖北省农业科技创新中心重大科技研发项目(2020-620-000-002-04);恩施州科技计划研究与示范项目(D20200017)。

摘　　要：为探究种植密度对湖北贝母生长性状、生理特性、产量及品质的影响,以筛选最佳种植密度,设置4个株行距种植密度进行试验。结果表明,随着密度的增加,湖北贝母的株高、叶绿素含量、过氧化氢酶活性、超氧化物歧化酶活性、过氧化物酶活性及可溶性蛋白含量均呈先增大后减小的变化趋势。当株行距为10 cm×15 cm(PD3)时,上述指标达到最大值,而超氧阴离子自由基含量及丙二醛含量则最小。随着种植密度的增加,湖北贝母的产量呈增大趋势,当株行距为5 cm×10 cm(PD1)时,湖北贝母的产量(11975.3 kg·hm^(-2))最大。其产量增量及贝母素乙含量则随密度增加呈先增大后减小的变化趋势,当株行距为10 cm×15 cm(PD3)时,湖北贝母的产量增量(5081.0 kg·hm^(-2))及贝母素乙含量(0.297%)最大。综上,合理密植能显著提高湖北贝母的产量及品质(P<0.05),株行距10 cm×15 cm为湖北贝母的最佳种植密度,可为湖北贝母的优质高产栽培提供理论依据。To study the effect of planting density on the growth traits,physiological characters,yield and nutritional quality of Fritillaria hupehensis,and then screen the optimal planting densities,4 planting densities were set up for the experiment.The results showed that with the increase of density,the plant height,chlorophyll content,catalase activity,superoxide dismutase activity,peroxidase activity and soluble protein content of Fritillaria hupehensis increased first and then decreased.When the plant-row spacing was 10 cm×15 cm(PD3),the above indexes reached the maximum value,while the superoxide anion free radical content and malondialdehyde content were the minimum.With the increase of planting density,the yield of Fritillaria hupehensis increased.When the row spacing was 5 cm×10 cm(PD1),the yield(11975.3 kg·hm^(-2))of Fritillaria hupehensis was the largest.The yield increment increased first and then decreased,with the increasing of density.When the row spacing was 10 cm×15 cm(PD3),the yield increment(5081.0 kg·hm^(-2))and peiminine content(0.297%)of Fritillaria hupehensis were the largest.In conclusion,reasonably dense planting could significantly increase the yield and nutritional quality of Fritillaria hupehensis(P<0.05),and the plant-row spacing of 10 cm×15 cm was the optimal planting density of Fritillaria hupehensis,which would provide theoretical basis for the high-yield and nutritional quality cultivation of Fritillaria hupehensis.

关 键 词：湖北贝母 种植密度 产量 生长性状 生理特性 品质 

分 类 号：S512.1[农业科学—作物学]