Effect of Biofertilizer and Plant Growth Regulators on Growth of Summer Mungbean
ABSTRACT The experiment was carried out at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during the period from March 2002 to June 2002 to evaluate the effect of biofertilizer ( Bradyrhizobium ) and plant growth regulators (GA3 and IAA) on growth of summer mungbean ( Vigna radiata L.). The experiment was laid out by RCBD with three replications and two factors (variety and treatment). There were altogether 12 treatment combinations. Most of the growth parameters such as number of branches plant-1, number of leaves plant-1, number of effective nodules plant-1, number of non-effective nodules plant-1, root dry weight plant-1, nodule dry weight plant-1 was the height due to the application of biofertilizer ( Bradyrhizobium ). On the other hand, plant height, leave dry weight plant-1, shoot dry weight plant-1 and total dry weight plant-1 was the height due to the application of plant growth regulators (GA3 and IAA). However, biofertilizer ( Bradyrhizobium ) and plant growth regulators (GA3 and IAA) showed statistically identical performance on Crop Growth Rate (CGR) and Relative Growth Rate (RGR). In addition, among the mungbean varieties, Binamoog-5 performed better than that of Binamoog-2 and Binamoog-4.