植物免疫诱抗剂对大豆苗期生长的影响  

Effects of Plant Immune Inducers on Growth of Soybean Seedlings

作　　者：任晓旭 应武[1] 黄雨晴 徐盛春[2] 阮松林[1] 张胜 REN Xiaoxu;YING Wu;HUANG Yuqing;XU Shengchun;RUAN Songlin;ZHANG Sheng(Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,China;Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China;Taizhou Agricultural Technology Extension Center,Taizhou 318000,China)

机构地区：[1]杭州市农业科学研究院,浙江杭州310024 [2]浙江省农业科学院,浙江杭州310021 [3]浙江省台州市农业技术推广中心,浙江台州318000

出　　处：《大豆科学》2024年第1期81-87,共7页Soybean Science

基　　金：杭州市农科院重大推广项目(2019HNCT-28)。

摘　　要：植物免疫诱抗剂具有诱导植物抗性和促进生长的作用,为比较8个不同植物免疫诱抗剂处理对大豆幼苗生长的影响差异,以浙鲜19为试验材料,对大豆幼苗的出苗率、株高、根长、叶长、叶宽、生物量等生物性状及叶片叶绿素相对含量(SPAD值)、多酚氧化酶(PPO)活性、苯丙氨酸解氨酶(PAL)活性等理化指标进行了测定。结果表明:不同植物免疫诱抗剂处理对大豆幼苗的生长表现各异,喷施海藻肥处理(HZF)可以增加出苗率、株高、鲜重生物量等指标,保康灵(BKL-2)处理对干重生物量的提高最为显著,达到1.91 g,喷施芸苔素内酯处理(YCS)可以明显增加大豆叶片SPAD值。所有处理中BKL-2处理的PPO和PAL活性相对于CK均有提高,分别提高41.18%和16.14%。BKL-2处理浓度4 g·L^(-1)的效果优于2和6 g·L^(-1)。BKL-2、HZF和MLT处理对大豆幼苗有明显的促生长作用,建议可在大豆生产上应用。Plant immune inducers have the effects of inducing plant resistance and promoting growth,in order to compare the effects of eight different plant immune-inducing treatments on the growth of soybean seedlings,taking Zhexian 19 as material,the biological traits such as seedling emergence rate,plant height,root length,leaf length,leaf width,biomass,and physicochemical indexes such as leaf chlorophyll relative content(SPAD)value,polyphenol oxidase(PPO),and phenylalanine ammonia-lyase(PAL)activities,were measured.The results showed that the growth performance of soybean seedlings varied with different plant immune inducer treatments.Spraying seaweed fertilizer treatment(HZF)could increase the indexes of seedling emergence rate,plant height,and fresh weight biomass,and the treatment BKL-2 had the most significant increase in dry weight biomass with the value of 1.91 g.Spraying brassinolide treatment(YCS)could significantly increase the value of SPAD in soybean leaves.The treatment BKL-2 was an increase in all treatments on PPO activity and PAL activity relative to CK with 41.18%and 16.14%,respectively.The plant immune inducer concentration of 4 g·L^(-1) in treatment BKL-2 was better than 2 and 6 g·L^(-1).BKL-2,HZF and MLT treatments had significant growth promoting effects on soybean seedlings and are suggested to be applied in soybean production.

关 键 词：植物免疫诱抗剂 大豆 生物量 促生长 抗性酶 

分 类 号：S565.1[农业科学—作物学]