Effect of ammonium/nitrate ratio in nutrient solution on control of Fusarium wilt of tomato by Trichoderma asperellum T34

被引：48
|
作者：
Borrero, C. [1 ]
Trillas, M. I. [2 ]
Delgado, A. [1 ]
Aviles, M. [1 ]
机构：
[1] Univ Seville, Escuela Tecn Super Ingn Agron, Dept Ciencias Agroforestales, E-41013 Seville, Spain
[2] Univ Barcelona, Fac Biol, Dept Biol Vegetal, E-08028 Barcelona, Spain
来源：
PLANT PATHOLOGY | 2012年 / 61卷 / 01期
关键词：
Fusarium oxysporum f; sp; lycopersici; iron; nitrogen; nutrient solution; perlite; populations; SUPPRESSION; HARZIANUM; COMPOST; FUNGI; PH;
D O I：
10.1111/j.1365-3059.2011.02490.x
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The behaviour of Fusarium oxysporum f.sp. lycopersici (Fol) and the effectiveness of the microbial control agent Trichoderma asperellum strain T34 were examined in hydroponically grown tomato plants under five ammonium/nitrate ratios. The results showed that disease severity was reduced by the action of T34 under increasing concentrations of ammonia. Furthermore, rhizosphere F.oxysporum populations decreased with T34 application. The presence of T34 augmented leaf nitrogen concentration in treatments infested with Fol. In addition, T34 application reduced iron concentration in tomato leaves at high ammonium/nitrate ratios and reduced the severity of Fusarium wilt at high iron and nitrogen leaf concentrations.
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收藏
页码：132 / 139
页数：8
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