Effect of foliar application of acetyl salicylic acid, ascorbic acid and riboflavin on growth, yield and yield component of French bean (Phaseolus vulgaris L Cv. Arka Arjun)

Abstract

The present experiment was carried out toassess the influence of foliar application of antioxidants on growth, yield and yield component of French bean cv. Arka Arjun. This experiment consisted of 7 treatment viz. Distilled water spray (T1), Acetyl Salicylic Acid @ 100ppm (T2), Acetyl Salicylic Acid @ 200 ppm (T3), Ascorbic Acid @ 100 ppm (T4), Ascorbic Acid @ 200ppm (T5), Riboflavin @ 200 ppm (T6) and Riboflavin @ 400 ppm (T7). Five plants in each plot were randomly selected for recording the growth, yield observation and its parameters. Data was collected on different traits such as Plant height, Number of branches per plant, Number of leaves per plant, Leaf Area Index, Number of pods per plant, Pod weight of ten fruits, Pod length, Pod diameter, Pod yield per plant, Protein content of pod. The salient findings of the present investigation have been summarized as under: such as Plant height was significantly influenced by various treatments The maximum Plant height was recorded in the treatment T5 (Ascorbic Acid @ 200ppm). Maximum number of branches per plant was observed for treatment T5 (Ascorbic Acid @ 200ppm). The maximum number of leaves per plant was recorded in the treatment T5 (Ascorbic Acid @ 200ppm). Maximum Leaf Area Index was recorded in the treatment T5 (Ascorbic Acid @ 200ppm). The maximum number of pods per plant was recorded in the treatment T3 (ASA @ 200ppm) Maximum pod weight of ten fruits was recorded in the treatment T5 (Ascorbic acid @ 200ppm). The maximum fruit length was recorded in the treatment T5 (Ascorbic acid @ 200ppm). Highest Pod yield per plant was recorded in the treatment T5 (Ascorbic acid @ 200ppm) also. Maximum value of protein content was observed for treatment T3 (ASA @ 200ppm). These results prove that foliar applications of Ascorbic Acid at concentrations of 200 ppm (T5) were beneficial for the growth and development of French bean. Maximum yield per plant was recorded with the treatment application of Ascorbic acid at concentrations of 200 ppm (T5) and was found to be superior over Acetyl Salicylic Acid concentrations. Maximum protein content was recorded with the treatment application of Acetyl Salicylic Acid at concentrations 200 ppm (T3) and was found to be superior over Ascorbic Acid concentrations.