Seeding periodicity in blue pine
Seeding periodicity in blue pine
K.M. Siddiqui and Mohammad Parvez
ABSTRACT
Intro: Himalayan blue pine (Pinus wallichiana A.B. Jacks. Syn. P. griffithii) is one of the important indigenous pines of Pakistan with a very large range of natural distribution. Its altitudinal range varies from 1500 to 3040 metres and longitudinal and latitudinal distribution extends over 69° 33' to 75° 35' east and 31° 22' to 36° 10' north respectively in Pakistan and Azad Kashmir. The over all range of this species is 25° 30' to 36° 10' north latitude and 69° to 98° east longitude in the countries of Afghanistan, India, Pakistan, Nepal, Bhutan and China (Critchfield and Little, 1963). The range of natural distribution of blue pine is continuous over a greater part of the tract but isolated patches of this species are also found in extreme west and east of this range. The distribution of blue pine in Pakistan and Azad Kashmir.
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June 1979
Vol. 29, Iss. 2
