Character Association and Path Coefficient Studies for Yield and its Components in Potato (Solanum tuberosum L.)

Correlation and Path Coefficient Analysis among Yield and Yield Associated Traits in Potato (Solanum tuberosum L.) Accessions in the ‘Terai’ Region of Uttarakhand

“…Also, in the present study, tuber yield per plot had a non-significant negative correlation with the ascorbic acid content of the tuber, protein content of the tuber, and tuber dry matter. These findings are in agreement with previous work reported by Levy et al [29], Luthra et al [30], Patel et al [19], and Gebreselassie and Ajema [22].…”

“…The data suggests that an increase in positively associated traits contributes to an increase in yield per plant. In line with this, Panigrahi et al [18], Patel et al [19], Shubha, and Singh [11 ], Lavanya et al [20], Singh et al [21], Gebreselassie and Ajema [22], Hunde et al [23], Nigussie et al [24], Sandilya et al [25], Tessema et al [26] and Tsagaye et al [27] also reported a significant correlation between tuber yield and several other traits, including tuber number, tuber weight, plant height, main stem per plant, average tuber weight, and tuber weight per plant. Consequently, improving tuber yield in potatoes is possible by employing an appropriate breeding strategy that selectively targets these positively correlated traits.…”

“…On the other hand, tuber yield per plot negatively and significantly correlated with the total soluble sugar content of the tuber (-0.317 and -0.315) at both the genotypic and phenotypic levels, respectively. Haq et al [28] and Patel et al [19] also reported that there is a significant negative correlation between tuber yield and total soluble sugar content of the tuber. Also, in the present study, tuber yield per plot had a non-significant negative correlation with the ascorbic acid content of the tuber, protein content of the tuber, and tuber dry matter.…”