| Abstrakt: |
The research was carried out at Zonal Agricultural Research Station, UAS, GKVK, Bengaluru during Rabi season of 2022 - 23 to evaluate the effect of bio-stimulants for growth and yield potency in potato. An experiment was conducted by adopting randomized complete block design (RCBD) with nine treatments and replicated thrice. The treatments comprised of soil application of humic acid, amino acid, sea weed extract and microbial consortia based bio-stimulants. Maximum plant height (74.04 cm), number of branches (7.73), plant spread (2460.73 cm²), number of leaves (66.87 plant-1), leaf area (3216.80 cm²), leaf area index (3.57), number of tubers (8.47 plant-1), tuber length (8.13 cm), tuber girth (15.19 cm) and tuber yield (28.61 t ha-1) were recorded with treatment comprising of whole tubers + RDF + Humic acid at 2 ml L-1, which was on par with the treatment combination of cut tubers + RDF + Humic acid at 2 ml L-1 for plant height (71.87 cm), number of branches (7.00), plant spread (2367.13 cm²), number of leaves (64.53 plant-1), leaf area (2848.37 cm2), leaf area index (3.16), number of tubers (6.87 plant-1), tuber length (7.20 cm), tuber girth (14.94 cm) and tuber yield (26.87 t ha-1). Whereas, control (RDF + Whole tuber) registered minimum plant height (59.47 cm), number of branches (5.67), plant spread (2020.20 cm²), number of leaves (50.87 plant-1), leaf area (1812.23 cm²), leaf area index (2.01) number of tubers (5.53 plant-1), tuber length (5.87 cm), tuber girth (11.12 cm) and tuber yield (21.47 t ha-1). [ABSTRACT FROM AUTHOR] |
