Response of growth and yield of 3 mungbean varieties to mepiquatchloride rates
2000
Wilaiwan Promkum(Department of Agriculture, Bangkok (Thailand). Field Crops Research Institute. Chai Nat Field Crops Research Center) | Suwimol Thanomsub(Department of Agriculture, Bangkok (Thailand). Field Crops Research Institute. Chai Nat Field Crops Research Center) | Santi Promkum(Department of Agriculture, Bangkok (Thailand). Field Crops Research Institute. Chai Nat Field Crops Research Center) | Sumana Ngampongsai(Department of Agriculture, Bangkok (Thailand). Field Crops Research Institute. Chai Nat Field Crops Research Center) | Patcharaporn Nuwisai(Department of Agriculture, Bangkok (Thailand). Field Crops Research Institute. Chai Nat Field Crops Research Center)
Indeterminate growth habit of mungbean causes difficulties for machine harvest due to leaves and young pods remaining at harvest time. The effects of mepiquatchloride rates on growth and pod ripening were examined at Chai Nat Field Crops Research Center in thr dry season, 1999. Mepiquatchloride at the rates of 0-300 ppm was sprayed at beginning flower bud stage on 3 mungbean varieties, KPS 1, CN 36 and CN 72. The mungbean varieities responded similarly to mepiquatchloride rates. At R4 stage, CN 72 produced higher leaf number than the other varieties, whereas mepiquatchloride at a rate of 0 ppm gave higher numbers of leaves than the others. At R6 stage, the varieties revealed no significant difference in leaf numbers. Mepiquatchloride at a rate of 0 ppm showed no significant difference in leaf number at R6 to 100 ppm mipiquatchloride but gave greater leaf number than 200 and 300 ppm mepiquatchloride. The mungbean varieties gave no statistically significant difference in seed yield, although KPS 1 had higher number of pods harvested, Similarly, there were no sigcificant difference in seed yields and pods harvested among mepiquatchloride rates.
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