Author/Authors :
NIZAMUDDIN Quaid-i-Azam University - Department of Biological Sciences, Pakistan , QAMAR, MAQSOOD National Agricultural Research Center, Pakistan , MIRZA, BUSHRA Quaid-i-Azam University - Department of Biological Sciences, Pakistan , SHAKIRULLAH Department of Agriculture, Northern Areas, Pakistan , ASGHAR, MEHMOOD Department of Agriculture, Northern Areas, Pakistan , AHMAD, SHER MARC, Pakistan , DIN, MUHAMMAD MARC, Pakistan , HUSSAIN, IQBAL National Agricultural Research Centre (NARC), Pakistan , BAIG, DAULAT National Agricultural Research Centre (NARC), Pakistan
Abstract :
Four true potato seed (TPS) hybrids were evaluated for tuber yield with a standard variety (Diamont) at Naltar Seed Valley Northern Areas, Gilgit during the 2005 crop season. Various agronomic parameters like number of stems per plant, seedling vigor, number of tubers per m^2, yield of tubers per hectare and grading weight percentage were assessed. The TPS hybrids Atzimba x TPS-67 and LT-8 x TPS-67 gave greater tuber yield (43 tons/ha) than the standard variety Diamont. Diamont and the TPS hybrid MF-I x TPS-67 did not significantly differ for tuber yield per hectare whereas the TPS hybrid MF-II x TPS produced the lowest number of tubers per m^2, number of tubers per plant, number of tubers per m^2 and yield per hectare (29.2 ton). On the basis of this study, it is concluded that TPS parent TPS-67 (male parent) has a better combining ability with TPS parents LT-8 and Atzimba, hence true potato seed (TPS) of these hybrids are recommended for general cultivation in Northern Areas of Pakistan.
Keywords :
True potato seed (TPS) , Genotypes , Agronomic Parameters , Northern Areas
