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首页> 外文期刊>International Journal of Biosciences >Seed and cone biometry of Juniperus excelsa from three Provenances in Balochistan
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Seed and cone biometry of Juniperus excelsa from three Provenances in Balochistan

机译：Bal路支三种种源Jun的种子和锥生物学。

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摘要

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.
机译：在本研究中，分析了Bal路支省的Ziarat，Zarghoon Ghar和Harboi地区三个不同地区的优良木兰的球果和种子性状。这项研究的目的是比较Bal路支省三个种源的优良木兰（J. excelsa）的球果和种子的生物特征，以验证空间隔离是否对生物特征带来了种源的变化。就锥体大小和每个锥体的种子数量而言，种群间差异大于种群内差异。发现每个锥的最大种子数量为8，并且随着锥中种子数量的增加，种子尺寸减小。 Ziarat的最大饱粒种子百分比更高。 Ziarat的圆锥直径，圆锥质量和种子质量的平均值也相对较高;而Zarghoon Ghar的每锥空种子和死种子的平均值更高。发现高程对填充种子的数量有影响。至少有75％的种子被发现是空的且死了的收缩种子。还发现了受感染和无聊的种皮种子。 Ziarat和Zarghoon Ghar的种群虽然彼此相邻，但视锥和种子的形态特征而异。但是，Ziarat和Harboi的空间隔离种群在锥状和种子形态特征上密切相关。

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