Varietal evaluation and selection of yield-associated traits of Potato (Solanum tuberosum) using correlation and path analysis in haor area of Moulvibazar, Bangladesh

Abstract

The trial was conducted with five HYV Potato BARI Alu-25, BARI Alu-35, BARI Alu-36, BARI Alu-37, BARI Alu-41, and one local potato variety as check at farmers field of haor area of Moulvibazar sadar upazilla during the winter season of 2016-17. The number of tubers per plant was highest in local (48.33) and lowest in BARI Alu-25 (10.16). ). The highest yield per hectare (26.98 t and 26.88 t) were also observed in BARI Alu-35 and  BARI Alu-37, respectively  while the local variety produced the lowest yield per hectare (14.43 t). The correlation and path analysis revealed that the number of leaves per plant and tuber yield per plant had a highly significant positive interrelationship with tuber yield per hectare. Again, days to harvest and individual tuber weight also exerted a highly significant positive correlation with tuber size. The number of leaves per plant, individual tuber weight, and days for harvest exhibited a maximum positive direct effect on tuber yield per hectare. So these traits should be given preference for potato improvement in haor areas of Bangladesh.

Doi: http://doi.org/10.5281/zenodo.3940411