Investigation of general combining ability in Pistacia atlantica in Eastern Azerbaijan of Iran

Document Type : Research Paper

Authors

1 Research Institute of Forests and Rangelands, P.O. Box 13185-116, Tehran, Iran,

2 Agricultural & Natural Resources Research center of Eastern Azerbaijan Province

3 Research Institute of Forests and Rangelands, P.O. Box 13185-116, Tehran, Iran

Abstract

The present research was carried out for evaluation ofgeneral combining ability of P. atlantica. Parental trees were selected, isolated, pollinated and finally the fruits were harvested, in 2002 and 2004. Some characteristics were measured in seed technology laboratory and remaining seeds were sown and some characters were measured in field. The highest cross abilities for fruitfulness (%) was obtained in crossed female 9 with male 3 and 11, in 2002. The most seed producer belonged to cross 9 female with 9 or 11 as males. The highest germination percentage was found in females 12, 13 and 8 when crossed with all of the males, in 2002. It is worth knowing that female 9 showed a good performance in the most measured characteristics. The highest seed weights were shown to be in crossing of males 8, 10 and 1, in 2004. Meanwhile, the best combiners among maternal trees were 22, 18 and 12. The most superior parents for seed weight production in 2004 were shown to belong to males 4, 8 and 1 and the best maternal combiner trees were 22, 21. According to the results, males number 10 and 11 and females 9 and 13 in 2002, and females 17, 18, 21 and 22 and male 1 and 8 in 2004, have shown to be the superior P. atlantica trees. Thus, in order to improve P. atlantica for achievement of successful seed and seedling production, a pilot plan could be beneficial.

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