Control of Penicillium expansum with potassium phosphite and heat treatment

被引：29

作者：

Amiri, A. ^{[1
]}

Bompeix, G. ^{[1
]}

机构：

[1] Univ Paris 06, Lab Parasitol Vegetale, F-72525 Paris, France

来源：

CROP PROTECTION | 2011年 / 30卷 / 02期

关键词：

Blue mold; Pome fruit; Postharvest; Phosphite; DOWNY MILDEW; IN-VITRO; PHYTOPHTHORA; APPLE; DIGITATUM; DECAY; THIABENDAZOLE; FRUIT; PEAR; PYRIMETHANIL;

D O I：

10.1016/j.cropro.2010.10.010

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Potassium phosphite (Phi) was evaluated for its in vitro activity against Penicillium expansum and for its potential long-term efficacy against postharvest blue mold infections on apple fruit. Phi amended to malt extract agar medium at 2 and 4 mg/ml completely inhibited mycelial growth and conidial germination, respectively. Conidia of P. expansum suspended for 3 min in a solution of 2 mg/ml Phi at 20 degrees C or heated to 50 degrees C germinated at 53 and 0%, respectively. Disease incidence of P. expansum on Elstar apples wounded and inoculated with a thiabendazole-resistant isolate was reduced significantly (P = 0.01) following a curative treatment with Phi at 2 mg/ml. When applied on freshly harvested unwounded Elstar apples, Phi (2 mg/ml) reduced blue mold incidence about three-fold compared to the control and was found to be as effective as thiabendazole against natural blue mold infections after six months of storage at 2 degrees C. Our results suggest that potassium phosphite has a potential to be part of the general management program implemented for the control of postharvest blue mold infections on pome fruits. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：222 / 227

页数：6

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