Journal of FARM SCIENCES, Vol 26, No 2 (2013)

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Study on physical characteristics of potato genotypes

H. Ganga, Uma N. Kulkarni, Nirmala B. Yenegi, N. Basavaraja, Nagaratna Uppinal, K.N. Ramachandra

Abstract


Study on ten varieties of potato tubers namely- Kufri Chipsona-2, Atlantic, Kufri Surya, Kufri Khayti, Kufri Jyoti, Kufri Pushkar, Kufri-Bahar, Kufri- Ashoka , J/99-24 with Kufri Pukhraj revealed that tubers mean length varied significantly (p£0.01) between the cultivars ranging from 5.9 cm in J/99-242 to 7.6 cm in Kufri Ashoka. Mean breadth of tubers ranged between 4.4 cm to 5.6 cm with shortest in Kufri Pushkar and longest in Kufri Ashoka. Kufri Ashoka showed significantly (p£0.01) large mass (113 g), highest volume (106.9cc) and longest diameter (5.8 cm) while Kufri Pushkar had significantly smallest mass, lowest volume whereas Kufri Surya recorded significantly shortest diameter. Majority of the cultivars were oval shaped with brown coloured skin and cream flesh, number of eyes were less in most of the cultivars with shallow eye depth, without scars and green tint. Highest number of natural depressions were found in Kufri Chipsona-2. Kufri Khayti produced highest slices (84.00%) as well as chips (22.83%) and thus ranked first. Surface oil content was highest in Kufri Ashoka (16.80%) and least in Kufri Pushkar (12%). Specific gravity increased yield of slices (r = 0.68) as well as yield of chips (r = 59) which was significant at 0.05 level.

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