Provenance variation in Pinus roxburghii Sarg.
Provenance variation in Pinus roxburghii Sarg.
Altaf Hussain
ABSTRACT
Comparative provenance trial of Chir pine (Pinus roxburghii Sarg.) was established in August, 1976 at Pir Sohawa, Margalla hills, Islamabad to evaluate their growth performance.
Comparative height growth in the nursery and field trials indicated that the provenances ranking have completely changed. The slowest growing provenance (Lehtrar) in the nursery obtained top ranking in the field.
The growth results indicated significant differences between the nine provenances for height and diamter. Lehtrar provenance is the most vigorous amongst all the provenances. Provenances originated from Batrasi, Dadar and Ghoragali are the best in diameter and height growth under local climatic conditions at Pir Sohawa, Islamabad.
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