No abstract

In present investigation, 13 (6 hybrids and 7 controls) different short duration potato (Solanum tuberosum L.) hybrids and varieties were evaluated for biochemical, quality and sensory parameters grown at ICAR-Central Potato Research Institute Research Station, Gwalior, Madhya Pradesh during 2019-20. Variation in biochemical parameters viz., reducing sugar, Total Soluble Solids, starch content, phenols and total free amino acids were recorded. Variation was also recorded in terms of tuber and haulm dry matter in hybrids and varieties and none of the hybrid/ varieties gave higher tuber dry matter at 60 and 75 days hence found to be not suitable for processing at early days. Different parameters for judging of boiled potatoes includes- color, taste, texture size and overall acceptability in scale of 1-10. The result revealed that overall acceptability of boiled tuber of Kufri Lauvkar found superior followed by hybrid P-31/J/7-37, Kufri Mohan, P-36/J/8-91 & P-27/J/-05 as compared to other hybrids and varieties. Texture is one of the most important quality attributes of potato tubers. It not only affects consumer preference, but it also influences the release of volatile flavour components during chewing. These characteristics are very important for marketing of potatoes as well as tubers intended for processing. The information from this study can be utilized for further research work for value addition and processing.

A total of thirteen different potato hybrids and varieties grown at ICAR-Central Potato Research Institute-Research Station, Gwalior were evaluated for different growth, morphological, and yield attributes for earliness in Chambal region of Madhya Pradesh. The experiment was laid out in randomized block design in three replications. Statistically non-significant variation was recorded under emergence at 30 days and days to senescence (70% maturity) ranged from 89.33% to 95.11% and 89.7 days to 97.7 days, respectively. A statistically significant effect was recorded under different growth parameters viz., day to emergence (days), plant height (cm), number of branches per plant (Stem/plant), number of compound leaves /plant, and plant vigour after 60 days of planting (scale 1-5). Control Kufri Ganga (24.28 t/ha) recorded a significant  maximum marketable tuber yield at 60 DAP with a net return of Rs 97224 per ha and a B:C ratio 1:2 followed by Kufri Khyati yielded 23.31t/ha with a net return of Rs 89521 per ha and B:C ratio 1:1.92, Kufri Pukhraj yielded 23.02 t/ha with a net return of Rs 87150 per ha and B:C ratio 1:1.9, hybrid and P-31/J/7-37 & P-36/J/8-91 yields 21.72 t/ha with a net return of Rs 76780 per ha and B:C ratio 1:1.79. At 75 DAP, Kufri Khyati (37.33t/ha) recorded the highest marketable tuber yield with a net return of Rs 192909 per ha and B:C ratio of 1: 2.82 followed by Kufri Ganga (36.33 t/ha) with a net return of Rs 184909 per ha and B:C ratio 1:2.75, Hybrid P-40/J/8-85 (35.65 t/ha) with net return of Rs 179427 per ha and B:C ratio 1:2.70 and P-27/J/-05 (35.35t/ha) with a net return of Rs 177057 per ha and B:C ratio 1: 2.67, were spotted as best for cultivation in the Chambal region of Madhya Pradesh.