The effect of coffee leaf rust on foliation and yield of coffee in Papua New Guinea

被引：15
|
作者：
Brown, JS
Whan, JH
Kenny, MK
Merriman, PR
机构：
[1] DEPT AGR,INST HORT DEV,KNOXFIELD,VIC 3180,AUSTRALIA
[2] COFFEE IND CORP,COFFEE RES INST,KAINATU,PAPUA N GUINEA
来源：
CROP PROTECTION | 1995年 / 14卷 / 07期
关键词：
coffee leaf rust; yield; canopy size; Papua New Guinea;
D O I：
10.1016/0261-2194(95)00040-2
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Coffee leaf rust epidemics of varying severity were created by application of fungicide treatments, of varying concentration, to experimental plots from 1989 to 1992. Detailed measurements of disease incidence and leaf fall showed that yield and foliation (number of leaves per lateral) in 1991 was affected by the disease incidence in the previous season. Analysis showed a significantly greater influence of disease on foliation, both within and between seasons, than on yield. This was confirmed by data from 1992. It was concluded that the effect of the disease on yield is indirect through induction of defoliation.
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页码：589 / 592
页数：4
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