Association among yield attributes under different conditions in wheat (Triticum aestivum L.)

Abstract

Thirty six wheat (Triticum aestivum L.) genotypes were sown under randomized block design with 3 replications in the irrigated timely, late and very late sown situations during rabi, 2003-04 and 2004-05 to estimate association among various agronomical traits following recommended packages of practices in each environment. The plot size was kept as 3.0 m x 0.92 m (4 rows 23 cm. apart) under the irrigated timely sown condition and 3.0 m x 0.72 m (4 rows 18 cm. apart) in the irrigated late and very late sown situations. Observations were recorded on 9 agronomical traits (Table 1). Ten plants from each plot were randomly selected to record the observations on various traits except days to heading (75%), days to maturity (75%), spikes per meter and grain yield per plot (g) which were recorded on the plot basis. Standard methods were used for the analysis of variance and calculation of correlation co-efficient between various traits in each environment.