Genetic Analysis of Salt Tolerance in Safflower (Carthamus tinctorius L.)
M. Nakhaei
Department of Agronomy and Plant Breeding, College of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, Iran.
A. Baghizadeh
Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
G. Mohammadi-Nejad
Department of Agronomy and Plant Breeding ,College of Agriculture, Shahid Bahonar University of Kerman, Iran.
P. Golkar *
Institute of Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156 83111, Iran
*Author to whom correspondence should be addressed.
Abstract
Aim: The mode of agronomic traits inheritance was investigated in safflower (Carthamus tinctorius L.) in salt stress as a new report in this study.
Place and Duration of Study: This experiment was carried out in Agricultural Research Farm of Shahid Bahonar University at Ekhtiarabad, Kerman, Iran, in 2011 -2012.
Methodology: Five generation including P1, P2, F1, F2 and F3 that derived from the cross of IL.111 (salt sensitive) × Mex.22-191 (salt tolerance) were used in a randomized complete block design with two replications.
Results: According to generation mean analysis, different types of gene action was obtained for studied traits. The additive model [d] was fitted for branches/plant, seeds/capsule and seed yield/plant. The simple additive - dominance model [d, h] was fitted for number of seeds/plant. Also, dominance× dominance epistasis [l] was added to fit the model as [d, h, l] for capsule/plant and dry weight/plant. The genetic model of [d,h,i] and [d, i] was fitted for genetic control of plant height and seed weight, respectively.
Conclusion: Obtained results could be suitable for designing of breeding strategies to improve seed yield of safflower in salt stress.
Keywords: Action, additive, action, dominance, effect, safflower.