Relationship between forage yield and its components in first generation of five synthetic varieties of tall fescue (Festuca arundinacea Schreb.)

Document Type : Research Paper

Authors

1 PhD, College of Agriculture, Isfahan University of Technology, Isfahan

2 Prof., Plant breeding, Isfahan University of Technology, Isfahan

3 Assis. Prof., Plant breeding, Isfahan University of Technology, Isfahan

4 B.Sc. Isfahan Education Organization, Isfahan

5 B.Sc. Apadana Nanobiotechnology Company, Isfahan

Abstract

Relationship between forage yield and its components in first generation of five synthetic varieties were evaluated in a randomized complete block design with three replications at the research farm of Isfahan University of Technology, Iran, during 2010-2011. Results showed significant effects of variation between parents on forage yield. Results of stepwise regression revealed that for dry matter forage yield, flag leaf length explained 61% of observed variation. Path analysis showed that plant collar diameter had the highest direct effect on forage dry matter yield. Plant collar diameter also had a positive indirect effect through plant height and negative indirect effect through number of fertile tillers on forage dry matter yield. However, flag leaf length, number of fertile tillers and plant height had the strongest effects on plant forage yield improvement, respectively.

Keywords

Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research
Volume 21, Issue 1 - Serial Number 1
September 2013
Pages 119-131

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