Effect of Field Dodder (Cuscuta campestris Yuncker) on Some Legume Crops

TL;DRAbstract

Twelve legume crops were tested to study the effect of field dodder (Cuscuta campestris Yuncker) on them. The tested crops showed great variations in response to field dodder parasitism. Based on the reduction in host dry weight (biological yield) caused by the parasite, the tested crops were classified into three groups: crops that lost > 50% of the their biological yield were considered highly susceptible, those that lost 10-50% of their biological yield were considered susceptible and those that lost < 10% of their biological yield were considered resistant. The results of the study revealed that among the tested legume crops the first group (the highly susceptible) comprised 6 crops (hyacinth bean, lens, chickpea, broad bean, alfalfa, fodder pea), the second group (the susceptible) comprised 4 crops (fenugreek, Egyptian clover, lupin, garden pea) and the third group (the resistant) comprised 2 crops (kidney bean and vetch). The parasitic damage appeared to be of greater magnitude o

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