Reaction of resistant and sensitive plants to chlorsulfuron and phenylurea cytokinin 4-PU-30
2001
Georgiev, G. | Iliev, L. (Bulgarian Academy of Sciece, M. Popov Institute of Plant Physiology, BG-1113 Sofia (Bulgaria)) | Yakimova, E.
Laboratory studies were initiated to determine the efficiency of phenylurea cytokinin 4-PU-30 as protectant of corn (Zea mays L.) against postemergence chlorsulfuron injury. The effect herbicide and cytokinin was also studied on wheat (Triticum aestivum L.)- a resistant to chlorsulfuron species. 4-PU-30 and chlorsulfuron exerted opposite action on the growth of corn and wheat plants.4-PU-30 stimulated the corn growth and suppressed growth of wheat, whereas chlorsulfuron stimulated wheat growth and inhibited that of corn. Chlorsulfuron overcame the inhibition of wheat seedlings caused by 4-PU-30 and 4-PU-30 protected corn from postemergence applied sulfonyllurea herbicide chlorsulfuron-moreover in some cases a stimulated growth of the seedlings was registered. The information obtained indicates that 4-PU-30 exerted antidote influence against chlorsulfuron on corn
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