Effects of time of spraying of irradiated carrageenan on the growth, yield and root nodulation of mungbean grown in Candon City, Ilocos Sur, Philippines
2023
Arquillo, D.G. | Elias, K.E.
Applying potential foliar fertilizer for mungbean at the best tine can help farmers increase their yield and, subsequently, their income. Hence, the study was conducted to determine the growth, yield, and root nodulation performance of mungbean as influenced by the time of spraying irradiated carrageenan. The study was conducted at Candon Cty, Ilocos Sur, Philippines from January to May 2021 employing Randomized Complete Block Design with three blocks. The experimental treatments were as follows: T0: no application (control); T1: spraying at 6 a.m.; T2: spraying at 7 a.m.; T3: spraying at 8 a.m.; T4: spraying at 3 p.m.; T5: spraying at 4 p.m.; and T6: spraying at 7 p.m. The result of the study revealed significant differences in terms of survival rate (%), but no significant differences were noted in terms of number of days to emergence, flowering, and maturity, plant height at maturity (cm), number of pods per plant, length of the pod (cm), number of seeds per pod, weight of 100 seeds (g), plant growth and vigor, nodule abundance and color, nodule position, and effective nodulation assessment. Spraving of irradiated carrageenan at 8 a.m. produced highest seed yield per hectare (2514.00 kg) however, did not vary significantly with other spraying times. It was noted that spraying irradiated carrageenan can increase the yield of mungbean by 9.95% to 28.57%. The result suggests that irradiated carrageenan can he sprayed early in the morning (6 a.m. to 8 a.m.) and late in the afternoon to early evening (3 p.m. to 7 p.m.) by the farmers in the locality. Seed inoculation should also be done by the farmers to improve the root nodulation of mungbean plants.
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