摘要： 在以苯甲酸和香豆素作为番茄的连作障碍自毒物质模拟土培盆栽试验中，研究了苯甲酸和香豆素对番茄苗期生长抑制作用以及加入土壤生态调控剂缓解酚酸类物质对番茄苗期生长抑制作用的效果。结果表明：施用苯甲酸100~200μg/（mL·；kg），株高较对照降低0.35~2.02cm，复叶数减少1片，复叶长减少0.11cm，叶面积减少29.93%~33.81%。加入土壤生态调控剂后，株高增加2.39~4.07cm，复叶数增加1~2片，复叶长增加3.10~3.52cm，叶面积增加11.94%~33.81%。施用香豆素100~200μg/（mL·；kg）的处理，100μg/（mL·；kg）处理株高较对照降低1.6cm左右，复叶数较对照减少1~2片，复叶长减少0.5cm左右，叶面积减少20.9%，其它两个浓度处理，番茄生长受到伤害而死亡；加入土壤生态调控剂后，株高增加0.25~2.51cm，复叶数增加1~2片，复叶长增加2.04~3.84cm，叶面积增加4.22%~66.61%。苯甲酸和香豆素混合处理及加入土壤生态调控剂后，结果与2种药剂分别处理有相同的趋势。分别施用苯甲酸、香豆素及混合处理加入土壤生态调控剂后，叶片丙二醛及苯丙氨酸解氨酶含量显著降低。
关键词:
番茄,
连作障碍,
苯甲酸,
香豆素,
土壤生态调控剂,
丙二醛,
苯丙氨酸解氨酶
Abstract: This experiment was induced to imitating the continuous cropping obstacles with Benzoie acid and Coumarin as poisonous matters produced by the tomatos(Lycoper sion esculentum Mill.)itself.The results indicated that the positive index were increased after appling soil ecological control agents.In comparison with contrast,the plant was treated with benzoie acid 100~200μg/(mL·kg),its height reduced 0.35~2.02cm,the number of leaf decreased 1 piece,the leaf length reduced 0.11cm,leaf area reduced 29.93%~33.81%.After appling soil ecological control agents,the plant height increased 2.39~4.07cm,the number of leaf increased 1~2 pieces,the leaf length increased 3.10~3.52cm,leaf area increased 11.94%~33.81%.When the plant was treated with coumarin100μg/(mL·kg),its height reduced 1.6cm,the number of leaf decreased 1~2 piece,the leaf length reduced 0.5cm,leaf area reduced 20.9%,if the concentration of coumarin were up to 150~200μg/(mL·kg),all of the tomato seedlings died.After appling soil ecological control agents,the plant height increased 0.25~2.51cm,the number of leaf increased 1~2 pieces,the leaf length increased 2.04~3.84cm,leaf area increased 4.22%~66.61%.When the plant was treated with phenolic amixture,it showed analogy with the figures as described above.The content of MDA and Phenlanine ammonialyase activities declined remarkably in compared with control.Applying soil ecological control agents not only could relieve the inhibition of cinnamic acid on the continuous cropping tomatos,but also promoted its growth.
Key words:
Tomato( Lycoper sion esculentum Mill),
Continuous cropping obstacle,
Benzoie acid, Coumarin,
Soil ecological control agents,
MDA,
Phenlanine ammonialyas
中图分类号:
翟彩霞, 张彦才, 王占武, 李洪涛, 李巧云. 土壤生态调控剂缓解酚酸类物质对番茄苗期生长抑制作用的效果[J]. 华北农学报, 2006, 21(S2): 54-58. doi: 10.3321/j.issn:1000-7091.2006.z2.013.
ZHAI Cai-xia, ZHANG Yan-cai, WANG Zhan-wu, LI Hong-tao, LI Qiao-yun. The Relieving Effects of Soil Ecological Control Agents to Phenolic Acids on Restraining Growth of Tomato Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(S2): 54-58. doi: 10.3321/j.issn:1000-7091.2006.z2.013.