INFLUENCE OF SOIL BULK-DENSITY ON ROOT-ROT AND WILT OF CHICKPEA

被引:6
作者
BHATTI, MA [1 ]
KRAFT, JM [1 ]
机构
[1] USDA ARS, VEGETABLE & FORAGE CROPS PROD, PROSSER, WA 99350 USA
关键词
FUNGAL INTERACTIONS; RHIZOSPHERE POPULATIONS;
D O I
10.1094/PD-76-0960
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The reaction of chickpeas (Cicer arietinum) to wilt and root rot pathogens was studied in a loose and a compacted soil with bulk densities of 1.2 Mg.m-3 and 1.5 Mg.m-3, respectively, Compacted or loose soil was infested separately or in various combinations with Fusarium oxysporum f. sp. ciceri, F. solani f. sp. pisi, Pythium ultimum, and/or Thielaviopsis basicola. The effects of wilt and root rot pathogens on disease severity were additive with various combinations of pathogen-infested soil. Root disease of a susceptible cultivar (JG-62) was more severe in infested, compacted soil than in loose soil, However, soil compaction had no effect on wilt caused by F. oxysporum f. sp. ciceris. Root growth of chickpea was inversely related to soil compaction.
引用
收藏
页码:960 / 963
页数:4
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