Abstract
The experiment was conducted in Randomized Block Design (RBD) with three replications in two sets of harvest period i.e. 90 and 105 days after planting (DAP) for tuber yield and processing traits in potato. The analysis of variance revealed that mean sum of squares due to genotypes was found highly significant for all the traits under study. The genotypes of MS/06-1947, K. Sadabahar and K. Khyati for 90 days and J/10-162, K. Sadabahar and MP/06-39 for 105 DAP were found promising for tuber yield per plant based on per se performance. The genotypes of MP/09-901, MP/04-578 and MP/04-816 exhibited high tuber dry matter, while, the genotypes, K. Himsona, K.Chipsona 1 and K.Chipsona 2 had low reducing sugar under both 90 and 105 days of harvest. The low chip colour index was exerted by genotypes of K. Chipsona 2, K. Chipsona 1, K. Chipsona 3, K. Chipsona 4 and K. Frysona under 90 days, whereas, K. Chipsona 2, Atlantic and K. Chipsona 3 under 105 days of harvest. Therefore, these genotypes suited as processing purpose. The high heritability along with high genetic advance in leaf area, number of stems per hill, number of tubers per plant, processing grade tuber yield per plant, chip colour index, reducing sugar and total soluble solids under both harvesting periods, recommended that genotypic difference for the characters ascribed to high additive genetic cause and selection would be wrathful based on phenotypic performance.
Highlights
Potato belongs to the family Solanaceae and genus Solanum, which comprises about 2000 species and the sub-section potato contains 19 series and 235 species[1 ], out of which 200 species are tuber bearing.[2]
The basic haploid chromosome number of Solanum tuberosum is believed to be 12.3 The somatic chromosome number of cultivated potato species is 48 (Tetraploid), which is grown throughout the world
The field trial was conducted at Potato Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa with two harvested periods of 90 (H1) and 105 (H2) days after planting (DAP)
Summary
Potato belongs to the family Solanaceae and genus Solanum, which comprises about 2000 species and the sub-section potato contains 19 series and 235 species[1 ], out of which 200 species are tuber bearing.[2]. All the recommended package of practices was followed for successful harvesting of the crop.[9] The data were recorded from five randomly selected plants from each entry in each replication for plant height (cm), leaf area (cm2), number of stems per hill, number of tubers per plant, total tuber yield per plant (g), processing grade tuber yield per plant (g), Mean tuber weight (g), tuber dry matter (%), chip colour index (1-10), reducing sugar (%), total soluble solids (0Brix).
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