Effects of Cultural Practices and Two Soilborne Pathogens on Root Morphology of Cotton in the Field
نویسندگان
چکیده
In many Arkansas cotton fields, factors such as inefficient tillage operations, extremely dry weather and traffic pressure may result in a compacted soil layer or hardpan. Soil compaction dramatically increases soil strength and can restrict cotton root penetration, leading to suppressed cotton height and lint yield (Taylor and Earl Burnett, 1963). This problem may be exacerbated by soilborne pathogens such as the root-knot nematode (Meloidogyne incognita) and the black root rot fungal pathogen (Thielaviopsis basicola). Studies relating the effects of cultural practices and these two soilborne pathogens on cotton root morphology especially in the field have not been reported.
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