Correlation studies among yield and its components in bread wheat under drought conditions.

Book Title: NA
Year Published: 2007
Month Published: NA
Author: Muhammad, Munir ; Chowdhry, M. A. ; Malik, T. A.
Book Group Author: NA

Correlation studies were undertaken for ten yield related traits in two bread wheat crosses derived from crossing Kohistan-97 (high yielding) with Inqlab-91 (medium yielding) and Chakwal-86 (low yielding) under drought conditions, in 1997-98 and 1998-99, in Pakistan. In general, the genetic correlation coefficients were greater than the corresponding phenotypic correlations. Grain yield per plant showed a positive and significant correlation with flag leaf area, tillers per plant, spike length, grains per spike, grain weight per spike and 1000-grain weight in both the crosses. The interrelationship between these traits showed that they are under the control of certain common genes, which can be exploited as selection criteria in breeding programs. The positive selections for one trait would also improve the other correlated traits. The interrelationship among these traits studied revealed that grain yield could be efficiently increased by obtaining maximum expression of tillers per plant, spike length, grains per spike and 1000-grain weight under drought conditions. The cultivars Kohistan-97 and Inqlab-91 may be used in breeding programmes to tailor for drought resistance in wheat.

Pages: 287 - 290
Volume: 9
Number: 2
Journal: International Journal of Agriculture and Biology
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 1560-8530

crop yield, crosses, drought, drought resistance, flag leaf,genetic diversity, genetic variation, genotypes, hybrids, irrigation,phenotypes, phenotypic correlation, plant breeding, plant waterrelations, water stress, wheat, yield components, yield correlations,Pakistan, Triticum, Triticum aestivum, Triticum, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, SouthAsia, Asia, Developing Countries, Commonwealth of Nations, droughttolerance, genetic variability, genotypic variability, genotypicvariation, watering, Field Crops (FF005) (New March 2000), PlantBreeding and Genetics (FF020), Plant Water Relations (FF062), PlantProduction (FF100), Environmental Tolerance of Plants (FF900), SoilWater Management (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management]

Source: EBSCO
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