Abstract
This study was conducted at Plant Breeding and Genetics Research Farm The University of Agriculture, Peshawar during the crop season of 2010-11 to estimate correlation coefficients for various parameters of 20 wheat genotypes. Randomized complete block design (RCBD) was used with three replications. The genotypes included six parents and their fourteen F2 crosses. Included parameters were plant height, days to maturity, grains spike -1 , spike weight, spikelet spike -1 and grain yield plant -1 . Differences among the genotypes were highly significant for plant height and significant for days to maturity and spikelet spike -1 while non-significant for grains spike -1 , spike weight, and grain yield plant -1 . Mean values for genotypes ranged between 65.07 to 88.93 cm for plant height, 166.3 to 171.0 for days to maturity, 53.3 to 70.4 for grains spike -1 , 2.89 to 4.42 g for spike weight, 18.7 to 21.9 for spikelet spike -1 and 8.23 to 18.93 g for grain yield plant -1 . Grain yield pant -1 was positive and highly significantly correlated with plant height, spike weight and grains spike -1 while negative and highly significantly correlated with days to maturity. PS 2004 × PS 2005 could be used in further breeding programs as it had maximum grain yield plant -1 and showed better performance for other parameters.
Highlights
Introduction estimate correlations coefficients for importantWheat (Triticum aestivum L.) is the staple parameters of F2 wheat population.food for most of the world population including
Selection for grain yield can only be effective if desired genetic variability is present in the genetic stock
Data were recorded on plant height, spike weight (g), grains spike-1, days to maturity, spikelets spike-1 and grain yield plant-1 (g)
Summary
Introduction estimate correlations coefficients for importantWheat (Triticum aestivum L.) is the staple parameters of F2 wheat population.food for most of the world population including. Data were recorded on plant height (cm), spike weight (g), grains spike-1, days to maturity, spikelets spike-1 and grain yield plant-1 (g). Mean squares for plant height, days to maturity, spikelets spike-1, spike weight, grain spike-1, and grain yield plant-1. Differences among the genotypes for spike weight days to maturity was taken by genotype PS-2004 (Table II). Mean value for spike weight ranged from while maximum (171 days) by PS-2005 × AUP-4006
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