Allelopathy of benzyl benzoate to Verticillium wilt（Verticillium dahliae）and the growth of eggplant seedling | 苯甲酸苄酯对茄子黄萎病及幼苗生长的化感效应

Chinese. 研究苯甲酸苄酯对茄子黄萎病、种子萌发及幼苗生长的化感效应。用浓度分别为0（CK），0.05，0.1，0.5和1.0 mmol/L的苯甲酸苄酯处理茄子种子和幼苗，通过田间抗病、种子萌发、幼苗生长等试验测定其对茄子的化感效应。不同浓度的苯甲酸苄酯对茄子种子萌发均有化感促进作用，低浓度（0.05，0.1 mmol/L）的化感促进作用较强，高浓度则促进作用减弱，当浓度为0.1 mmol/L时，种子萌发效果最好。在试验浓度范围内，苯甲酸苄酯可提高茄子幼苗对黄萎病的抗性，对茄子幼苗的株高、茎粗、鲜质量、叶绿素含量、相对电导率、根系活力及苯丙氨酸解氨酶（PAL）、过氧化物酶（POD）、多酚氧化酶（PPO）活性均表现为促进作用，最佳作用浓度均为0.1 mmol/L。苯甲酸苄酯可以在某种程度上提高茄子的抗病性，促进茄子种子的萌发和幼苗的生长。

English. Effects of benzyl benzoate on Verticillium wilt (Verticillium dahliae), seed germination and seedling growth were studied. The seedlings of eggplant and eggplants were treated with five concentrations of benzyl benzoate, 0 (CK), 0.05, 0.1, 0.5 and 1.0 mmol/L, then through field disease resistance, seed germination, seedling growth, allelopathy of benzyl benzoate to eggplant was studied. Benzyl benzoate exhibited allelopathic promotion on seed germination at different concentrations, especially 0.05 mmol/L and 0.1 mmol/L, had the biggest allelopathic promtion, and became less when the concentration increased. The results of field investigation indicated that benzyl benzoate enhanced the disease resistance of eggplants at all the concentrations, the stem height, stem diameter, fresh matter, chlorophyll content, relative electricity conductivity, root vigor, PAL activity, PPO activity and POD activity were promoted, and 0.1 mmol/L treatment had the biggest allelopathic promotion. Benzyl benzoate can enhance the disease resistance of eggplants, promote seed germination and seedling growth of eggplants.