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Estimation of genetic correlation and heritability of characteristics of Haloxylon persicum Bge. in the seed orchard of the Yazd Province, Iran | ||
| تحقیقات جنگل و صنوبر ایران | ||
| Article 10, Volume 27, Issue 4 - Serial Number 78, January 2020, Pages 475-484 PDF (876.85 K) | ||
| Document Type: Research article | ||
| DOI: 10.22092/ijfpr.2020.128837.1888 | ||
| Authors | ||
| A. Mirhosseini* 1; Afagh Tabandeh Saravi2; K. Espahbodi3; B. Enayati4 | ||
| 1Research Expert, Forests and Rangelands Research Department, Yazd Agricultural and Natural Resources Research and Education Center, Yazd, Iran | ||
| 2Assistant Prof., Yazd University, Yazd, Iran | ||
| 3Associate. Prof., Forests and Rangelands Research Department, Mazandaran Agricultural and Natural Resources Research and Education Center, AREEO, Sari, Iran | ||
| 4Ph.D. Graduated of Genetic and Animal Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran | ||
| Abstract | ||
| The aim of this study was to estimate the genetic parameters of Haloxylon persicum Bge., based on a progeny test in seed orchards of Yazd province using the REML method. For this purpose, 60 trees with good appearance, optimum quality, the relative balance between crown and trunk, resistant to pests and diseases, and with high germination seeds were selected among the H. persicum stands in different habitats of Yazd province. After seed planting and seedling production, they were transplanted into the field by preserving the tree and planted on rows with 6 m intervals. The final traits for genetic evaluation of genotypes were continuously recorded during 5 years of project implementation in three times. The studied traits consisted mainly of vegetative traits such as height, crown spreading, trunk diameter, number of branches, freshness, seed production and contamination of powder and psyllium. The results showed the highest genetic correlations between trunk and crown diameter and height and contamination with powder. The results also indicated a high environmental correlation between those traits. However, environmental correlations were estimated to be lower than genetic correlations, which indicated a greater genetic contribution to diversity among the trees. Estimation of heritability of traits also showed that the highest heritability was related to the height and diameter of the crown and the least to powder contamination. Moreover, freshness were estimated to be 0.619, 0.616, 0.509, 0.335, 0.170, and 0.20, respectively. | ||
| Keywords | ||
| Genetic parameter; Haloxylon; progeny test; REML method | ||
| References | ||
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