FOLIAR APPLICATION OF IAA AND GA3 3 ON GRWOTH AND YIELD ATTRIBUTES OF MUNGBEAN ( VIGNA RADIATA L. R. WILCZEK)

A field experiment was conducted to assess the effects of foliar application of Indole acetic acid (IAA) and Gibberellic acid (GA3) 3 ) on the growth and yield of mungbean (BARI Mung-6) plants. Nine treatments were administered, including various concentrations of IAA and GA3, 3 , applied individually and in combination. The experiment followed a randomized complete block design (RCBD) with three replications, data were recorded on growth and yield parameters at 30 days after sowing (DAS) and at harvest. Results indicated that treatment T8 8 (IAA 50 mg/l + GA3 3 50 mg/l) significantly enhanced growth and yield attributes. Notably, T8 8 exhibited the highest values for plant height (57.50 cm), number of leaves per plant (47.33), number of branches per plant (7.67), chlorophyll content (55.14 SPAD value), shortest duration to 80% flowering (35.33 days) with 80% pod maturity (55.33 days), number of pods per plant (37.67), pod length (14.99 cm), number of seeds per pod (13.78), weight of 1000 seeds (54.95g), seed yield (1.68 t/ha), biological yield (3.52 t/ha), and harvest index (47.73%). Conversely, the untreated control (T0) 0 ) exhibited the lowest performance across all parameters. Therefore, foliar application of IAA and GA3, 3 , particularly at 50 mg/l concentration each, demonstrated significant improvements in growth, yield, and related attributes of mungbean.