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Effect of herbicide applications on legume‐rhizobium symbiosis
Author(s) -
Daramola David,
Adebayo Adewale
Publication year - 1981
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19811440204
Subject(s) - rhizobium , vigna , legume , symbiosis , biology , sowing , agronomy , horticulture , bacteria , inoculation , genetics
The effect of the application of three herbicide formulations namely: Preforan (2,4‐dinitro‐4‐trifluoromethyl‐diphenyl ether), Dacthal (dimethyl 2,3,5,6‐tetrachloroterepthalate) and Dual (2,ethyl‐6‐methyl‐N‐(2‐methoxy‐1‐ethyl‐a‐chloro‐acetanilide)) on legume‐ Rhizobium symbiosis was evaluated by incorporating these herbicide formulations into plate agar cultures of two Rhizobium strains and into soil carrying cowpea ( Vigna unguiculata (L.) Walp.). Results indicated that Dual is bactericidal — giving the lowest mean cell count for strain TAL 385 in agar culture, 3.04 × 106 compared to 3.51 and 3.43 × 106 for Dacthal and Preforan respectively. In the soil system, while the highest rate of Dacthal and Preforan merely decreased nodulation, Dual highest rate completely killed the plants within 14 days after planting. The rate of herbicide application and the herbicide type were both important factors which affected vital parameters of the legume — Rhizobium symbiosis in soil culture.