Vol. 12, Issue 12 (2023)

Author(s):
KS Athira, K Usha Kumari, M Paratpara Rao, G Kranthi Rekha and DR Salomi Suneetha

Abstract:
A field experiment was conducted to identify heat tolerant potato genotypes suitable for cultivation in high temperature regions of South India. Eight potato genotypes (HT/14-95, HT/14-109, HT/12-834, HT/16-113, HT/12-116, HT/10-1554, HT/12-830 and HT/15-240) along with Kufri Surya as check were evaluated during rabi season of 2020-21 at College of Horticulture, Dr. YSR Horticultural University, Venkataramannagudem, West Godavari district, Andhra Pradesh. Experiment was laid out in RBD design with four replications. Genotypes HT/12-834, HT/15-240, and HT/14-109 performed better over other genotypes for growth attributes. Maximum number of tubers per plant was recorded in HT/12-834 while highest diameter of tubers and maximum average tuber weight were recorded in HT/10-1554. Membrane stability index was observed highest in Kufri Surya while highest chlorophyll content and chlorophyll stability index were recorded in genotype HT/12-830. Genotypes HT/12- 830, HT/12-834, and HT/15-240 were found significantly superior over the check variety Kufri Surya for total and marketable yield of tubers per hectare, while the genotypes HT/14-109 and HT/12-116 were found on par with it. Highest dry matter content was recorded in genotype HT/15-240 while Vitamin C content was found maximum in genotype HT/12-830. Lowest amount of reducing, non-reducing and total sugar content were observed in HT/14-109. In sensory evaluation, genotype HT/15-240 ranked first followed by HT/12-830 and HT/12-116 for consumer acceptance of boiled tubers while Kufri Surya ranked first for chips quality followed by genotypes HT/10-1554 and HT/14-109.