Rawnak Ara Noor-E-Ferdous1*, Md Shariful Islam2 andBikash C Sarker3
1Bangladesh Stevia and Food Industries Limited, Dhaka-1216, Bangladesh, 2 Bangladesh Sugarcrop Research Institute, Regional Sugarcrop Research Station, Thakurgaon-5102, Bangladesh, 3 Department of Agricultural Chemistry, Hajee Mohammed Danesh Science and Technology University, Dinajpur-5200, Bangladesh
*Corresponding author: rawnakara28@gmail.com
Article history: Received: 04.10.2020,Accepted: 24.12.2020, PublishedOnline: 31.12.2020
Cite this article:
Noor-E-Ferdous RA, Islam MS and Sarker BC. 2020. Influence of gibberellic acid (GA3) on growth, chlorophyll and seed yield of summer mungbean cultivars in Northwest of Bangladesh. Intl. J. Agric. Med. Plants. 1(1): 26-35.
ABSTRACT
Mungbean is an important pulse crop and its productivity is highly sensitive to application of plant growth regulators. The experiment was carried out to investigate the effects of gibberellic acid (GA3) on growth, leaf chlorophyll and yield of summer mungbean cultivars viz., V1-Binamoog-5, V2-BARI mung 6 and V3-Binamoog-8 along with four treatments of H1-control (without GA3), H2-50 ppm GA3, H3-100 ppm GA3 and H4-150 ppm GA3 applied at 15, 30, 45 and 60 days after sowing (DAS). Data were recorded on plant height, number of leaves plant-1, leaf area plant-1, dry root weight, root volume, number of root nodule, chlorophyll content, proline content and seed yield. Plant height, number of leaves plant-1, leaf area plant-1 and seed yield were statistically different among the cultivars and also significantly influenced by the application of different concentrations of GA3. The highest plant height, number of leaves plant-1, leaf area plant-1 and seed yield were obtained by applying 100 ppm GA3. The interaction effect of cultivars and different concentrations of GA3 were statistically significant on plant height, number of leaves plant-1, leaf area plant-1 and seed yield. The highest plant height, number of leaves plant-1, leaf area plant-1 and seed yield were obtained in Binamoog-8 by spraying 100 ppm GA3. Therefore, it infers that foliar application of GA3at the rate of 100 ppm and Binamoog-8 had the best yield potentiality in Northwest of Bangladesh for profitable summer mungbean cultivation.
Keywords: Chlorophyll, GA3, growth, mungbean, seed yield
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