Variability and Heritability of Morphological Traits in some Apricot Genotypes at Climatic Conditions of Sanandaj, Kurdistan Province, Iran

Document Type : Research Article

Authors

1 MSc Graduated, Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Korramabad

2 Associate Professor, Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Korramabad

3 Associate Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Lorestan University, Korramabad

4 Assistant Professor, Department of Seed and Plant Improvement, Agricultural and Natural Resources Research Center of Kurdistan, Sanandaj

Abstract

In this study, the genetic diversity of 26 apricot genotypes collected from Agricultural Research Station of Kurdistan Collections was evaluated using morphological traits based on a randomized complete block design with three replications. Analysis of variance showed that the effect of genotype on all morphological traits was significant at the 1% level of probability. The high diversity for yield, productivity, percentage of incomplete flowers, percentage of the dry matter was observed among genotypes. Results showed that the yield of apricot trees ranged from 9.49 kg per tree in Ghamishlou to 81.71 kg per tree in Tilton. Percentage of incomplete flowers ranged from 2.5% in Khorramta2 to 95.3% in Ghamishlou genotype. Stone weight ranged from 1.3 in Khorramta1 to 4.02 in Malayer. Dry matter ranged from 10.13 gr in Ghamishlou to 20.36 gr in Canino. Estimation of phenotypic and genotypic coefficients showed that the percentage of two pistil and incomplete flowers had the maximum amount of genetic diversity. The highest heritability was belonged to tree growth habit, tree growth vigor, flower density, pistil/ stamen height and fruit density and the lowest heritability was associated with the percentage of two pistil, leaf area and petiole length.

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References

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Volume 9, Issue 1
May 2017
Pages 17-32

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