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20111
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Author: Ishwar Kumar × End date: 2012 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of different planting dates and cultivars on growth and yield of potato
    (CCSHAU, 2011) Ishwar Kumar; Baswana, K.S.
    The experiment entitled “Effect of different planting dates and cultivars on growth and yield of potato” was conducted at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during winter season of 2009-10. The experiment comprising of five planting dates (30 September, 10 October 20 October, 30 October and 10 November) and four cultivars (Kufri Pukhraj, Kufri Bahar, Kufri Badshah and Kufri Pushkar) was laid out in a split–plot design with three replications keeping net plot size 3.6x3.6 m. Ten competitive plants were selected randomly from each experimental treatment to record data on various parameters, which were influenced significantly by different planting dates and cultivars. The per cent plant emergence at 14, 18 and 22 DAP, plant height, leaf area index, number of tubers >50-75 g grade, total number of tuber/m2, weight of tuber >50-75 g and >75 g grade and total tuber yield , marketable yield were statistically higher with 20 October planting. However, the value for number of stems per hill, number of leaves per stem, leaves weight per hill, weight of tubers >75 g was recorded were maximum with 30 October. The stem weight per hill, number of tubers with up to 25 g and 25-50 g weight of foliage, grades were highest with 10 November and number of tuber >75 g grade with 10 October planting. Different cultivars exhibited significant difference growth and yield parameters except at 26 and 30 DAP. The maximum value for per cent plant emergence, number of tubers up to 25 g, >25-50 g, 50-75 g and >75 g grade, total number of tubers/m2, weight of tubers up to 25 g, and >50-75 g grade, total tuber yield, marketable yield were maximum with cultivar Kufri Pushkar. However, plant height, number of leaves per stem, leaves weight per hill, stem weight per hill, leaf area index and weight of foliage with cv. Kufri Badshah, number of stems per hill, weight of tuber >75 g grade with cv. Kufri Bahar and Harvest index in Kufri Pukhraj. Interaction effect of planting dates and cultivars showed remarkable variation for growth and yield parameters except per cent plant emergence at 26 and 30 DAP. Significantly highest value was registered for per cent plant emergence at 14 DAP, plant height at 45 DAP, number of leaves per stem, leaf area index with planting on 20 October, stem weight per hill, weight of foliage on 10 November with cv. Kufri Badshah. However, plant emergence at 18 and 22 DAP, number of tubers of >50-75 g grade, weight of tubers up to 25 g and >50-75 g grade, total tuber yield, marketable yield on 20 October, number of tubers of >75 g grade and total number of tuber/m2 on 10 October, plant height at 60, 75 and 90 DAP, weight of tubers >25-50 g on 30 October and number of tubers up to 25 g, >25-50 g and >75 g grade on 10 November with cv. Kufri Pushkar. Similarly, Kufri Pukhraj had significantly highest value for number of stems per hill on 20 October and harvest index with 30 September planting. However, Kufri Bahar on 20 October planting showed maximum value for weight of tubers >75 g grade.