DefinePK

Abstract

The present study was carried out to evaluate response of potato genotypes to different levelsof nitrogen at fruit and vegetable nursery, Department of Horticulture, The University of AzadJammu and Kashmir-Pakistan during the cropping season 2014. The experiment was laid outin Randomized Complete Block (RCB) Design with split plot arrangement, consisting ofnitrogen levels and potato genotypes. There were five levels of nitrogen i.e. (0, 80, 100, 120 &140 kg N ha-1) and three potato genotypes viz., Ronaldo, Senna red and HZD 00-112. The datawas collected for different growth and yield parameters at each and every level of nitrogen.The highest significant values for most of the traits studied were recorded at 120 kg ha-1nitrogen Genotype Ronaldo have maximum survival% age (80.44%), plant population (12.07%), number of leaves plant-1 (176.81), plant leaf area (8.36 cm2), number of branches plant-1(59.45), plant height (52.56 cm), number of tuber plant-1 (8.03), tuber diameter (4.56 cm),average weight of tuber plant-1 (375.07g), and yield of tuber plot-1 (22.80-ton ha-1). Potatovariety Ronaldo has given the highest yield (27.85 tones ha-1). Based on the results of thepresent study, it is recommended that application of nitrogen at 120 kg ha-1 can enhance overall productivity of potato under prevailing environmental conditions of Rawalakot, Kashmir-Pakistan.Keywords: Potato; Nitrogen levels; Genotype; Yield; Moisture content
http://dx.doi.org/10.19045/bspab.2016.50048