Fruit surface colonization and biological control of postharvest diseases of pear by preharvest yeast applications

被引:77
作者
Benbow, JM [1 ]
Sugar, D [1 ]
机构
[1] Oregon State Univ, So Oregon Res & Extens Ctr, Medford, OR 97502 USA
关键词
D O I
10.1094/PDIS.1999.83.9.839
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The yeasts Cryptococcus infirmo-miniatus, Cryptococcus laurentii, and Rhodotorula glutinis, applied to Bose and d'Anjou pear fruit in the field 3 weeks prior to harvest, maintained high population levels through harvest, while populations of Candida oleophila declined after 1 and 2 weeks, and by harvest were not significantly different from total yeast populations on untreated fruit. Yeasts were sprayed individually on fruit at concentrations of 1 to 3 x 10(8) CFU/ml, with approximately 2 mi applied per fruit. Initial population sizes for all four species averaged 5 x 10(6) CFU per fruit. C, infirmo-miniatus provided the most consistent decay control in fruit treated 3 weeks before harvest, C, infirmo-miniatus and R, glutinis also provided significant postharvest decay control in Bose fruit treated 1 day before harvest.
引用
收藏
页码:839 / 844
页数:6
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