Author(s): Bharti Dehari, NR Rangare, Vivek Sandilya, Vikky Kumar and Tuleshwar Singh

Abstract: The current experiment titled “Characteristics of genetic variability for yield and yield attributing traits in potato (Solanum tuberosum L.)” was performed at Research cum Instructional Farm of Department of Genetics and Plant Breeding, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, (C.G.) during the rabi 2022-23. The twenty five potato genotypes including one check variety, i.e., AICRP P-79 planted in RCBD for the experiment. Genotypes were raised in three replications that were spaced 60 and 20 cm apart in four rows that were in this plot size (3 x 2.4 m²). Total fifteen characters were used to record all observations where from each replication across all genotypes, five competitive well-grown plants at random had been chosen. Maximum PCV and GCV recorded for unmarketable tuber yield per plot, fresh weight of shoots per plot, number of branches per plant and fresh weight of shoots per plant. High heritability (bs) coupled with high genetic advance as % of mean had recorded at Fresh weight of shoots per plot (kg), total tuber yield per plot (kg), biological yield per plot (kg), number of branches per plant (kg), number of tuber per plant, fresh weight of shoots per plant (kg), harvest index (%), unmarketable tuber yield per plot (kg) and marketable tuber yield per plot (kg). Total tuber yield per plant attributes had highly significant and positive correlation with Plant emergence (%), number of shoots per plant, number of tuber per plant, number of compound leaf per plant and fresh weight of shoots per plot (kg). Path coefficient analysis revealed that Plant emergence (%), number of shoots per plant, number of leaflets per plant, fresh weight of shoots per plot (kg), number of tubers per plant, harvest index (%) and marketable tuber yield per plot (kg) had direct effect and correlation coefficient both are positive. It means correlation is due to direct effect, i.e. there is true relationship between dependent and independent traits, direct selection would be rewarding.

DOI: 10.33545/26174693.2024.v8.i3j.844