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Seed and cone biometry of Juniperus excelsa from three Provenances in Balochistan

By: Muhammad Hussain Khajjak, Muhammad Saeed, Muhammad Naeem Shahwani, Shahjahan Shabbir Ahmed, Ghazala Shaheen, Asma Yousafzai, Nazeer Ahmed Durrani

Key Words: Balochistan, Biometry, Cone, Cupressaceae, Juniperus excelsa, Seed

Int. J. Biosci. 10(1), 345-355, January 2017.

DOI: http://dx.doi.org/10.12692/ijb/10.1.345-355

Abstract

In present study cone and seed traits of the J. excelsa in three distinct regions namely Ziarat, Zarghoon Ghar and Harboi districts of Balochistan were analyzed. The aim of this study was to compare the biometrical characters of cone and seed of J. excelsa growing in three provenances in Balochistan with the intention to verify whether the spatial segregation had brought any variation in the provenances with respect to biometric characteristics. Inter-population differences were greater than intra-population differences with regard to cone size and number of seeds per cone. Maximum number of seeds per cone was found to be 8 and seed size was reduced with the increase in number of seeds in a cone. The percentage of the maximum number of filled seeds was higher in Ziarat. The mean values of cone diameter, cone mass and seed mass were also comparatively higher in Ziarat; while the average values of empty and dead seeds per cone were higher in Zarghoon Ghar. Elevation was found to effect on the number of filled seeds. At least 75 percent seeds were found to be empty and dead filled shrunken seeds. Infested and bored seed coat seeds were also found. The populations of Ziarat and Zarghoon Ghar varied with respect to cone and seed morphological characteristics, though they were located adjacent to each other. However, the spatially segregated populations of Ziarat and Harboi were closely related with respect to cone and seed morphological characteristics.

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Seed and cone biometry of Juniperus excelsa from three Provenances in Balochistan

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Muhammad Hussain Khajjak, Muhammad Saeed, Muhammad Naeem Shahwani, Shahjahan Shabbir Ahmed, Ghazala Shaheen, Asma Yousafzai, Nazeer Ahmed Durrani. 2017. Seed and cone biometry of Juniperus excelsa from three Provenances in Balochistan. Int. J. Biosci. 10(1), 345-355.
http://dx.doi.org/10.12692/ijb/10.1.345-355
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