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1,213 open-access articles · page 6 of 61
ArticlesA note on the performance of chir pine seedlings raised from seed ar selected stands
K.M. Siddiqui, M. Khan
Note: The authors had an opportunity during May, 1977, to observe seed collection of Chir pine (Pinus roxburghii Sarg.) in Dader Forest of Siran Forest Division for supply to the forest departments. The seed trees were highly malformed and slow growing at the…
25 May 2024- Articles
Use of entire plants/root shoot cuttings for walnut planting in Murree Hills (Note)
Mahmood Iqbal Sheikh, Abdul Aleem
Intro: Walnut (Juglans regia) is an important species of the Himalayan Moist Temperate Forests. Because of its high value for ornamental veneer, attempts are being made to grow it artificially. Usual methods are: planting one year old bare rooted nursery raise…
25 May 2024 - Articles
Decay in the standing temperate conifers of Kaghan
Zakaullah
A study of 203 conifer trees revealed that the incidence of decay was 16.3% and extent of volume loss 1.7% among all the sample trees. Phaeolus schweinitzii and Phellinus pini were the two major decay fungi causing brown cubical and red ring rot respectively.…
25 May 2024 - Articles
Comparison of grazed and ungrazed vegetation of subalpine ecological zone at Sari
Mohammad Noor
Vegetation changes in an exclosure at Sari (Kaghan) established in August 1976 were compared with areas open to grazing after one year of protection. Forage production increased three fold. The increase was due both forbs and grasses. The percent cover of gras…
25 May 2024 - Articles
Insecticidal trial for the control of poplar defoliator Ichthyura anastomosis Steph. (Notodontidae: Lepidoptera)
Bashir Hussain Shah, Hanif Gul, M. Ismail Chaudhry
In the insecticidal trial conducted against poplar defoliator, Ichthyura anastomosis at Mingora (Swat), Sevin 85% S.P. gave 100% mortality of larvae in .01%, concentration. Thiodan and Hostathion also killed 100% larvae in highest concentration of 0.05% while…
25 May 2024 - Articles
Eco-physiological investigations on the water balance of three important species of Juniper forest tract at Ziarat (Baluchistan)
M.A. Quraishi, A. Khalique, Shahida Perveen, Perveen Akhtar
Intro: Dry juniper forest of Baluchistan is an open type of forest with Juniperus excelsa M. Bieb as the principle tree species and a plenty of shrub growth in much open spaces (Troup, 1921; Champion et al., 1965). The average number of juniper trees per hecta…
25 May 2024 - Articles
Recent developments in Opiates
M. Ikram
Opiates are potent substances derived from Opium, latex from the capsules of papa-ver somniferum, and these include principally Morphine, Codeine, Thebaine, Narcotine (Noscapine) and papaverine beside other minor alkaloids. The main alkaloids used medicinally…
25 May 2024 - Articles
H2SO4 treatment help early germination of Gleditschia triacanthos seed (note)
Mahmood Iqbal Sheikh
Note: Gleditschia triacanthos, Linn. (Dozakh) a large deciduous tree from U.S.A, has a wide range of adaptation starting from the plains right upto 2200 m above sea level. Tn some recent studies, it has turned out to be a very hardy species and has survived th…
25 May 2024 - Articles
Evaluation of twenty seven years Bastargi exclosuer in Ziarat Juniper forests of Pakistan
S. Maqsood Khan
A 16 hectare exclosure was established in Ziarart Juniper forests in 1949 to find out the effects of protection on the vegetation and soil characteristics. In 1977, twenty seven years after its establishment, eighty randomly selected one square meter plots wer…
25 May 2024 - Articles
Ecological changes in the alpine pasture vegetation at Paya (Kaghan) due to complete protection from grazing
S. Maqsood Khan
Two enclosures of 0.5 hectares each, one on flat land and the other on 50 degree slope, western exposure, were established in alpine grazing lands at Paya (Kaghan) during 1969 and 1971 respectively. The effect of closure was studied during September, 1976, sev…
25 May 2024 - Articles
Reproductive physiology of Juniperus excelsa M. Bieb. 1-Pollen migration rate
A. Khalique, Shahida Perveen
The pollen dispersal Juniperus excelsa M. Bieb was studied on a single isolated tree. The pollen specimens were collected at the following distances from the source tree: 3, 6, 12, 24, 48 and 96 meters. The results showed that the pollen frequency at a distanc…
25 May 2024 - Articles
Survival and growth of Eucalyptus camadulensis siliqua in Pakistan
G. M. Khattak, Abdul Aleem
One year old Eucalyptus camaldulensis, Ceratonia siliqua and Zizyphus mauritiana raised in polythene tubes were planted on 18-2-1975 in deep alluvial clay loam soil at Peshawar and each plant irrigated with four gallons of water at planting. The rainfall durin…
25 May 2024 - Articles
Field survey of eucalypt mycorrhizae in Pakistan
M. A. Quraishi, Abdul Khalique
A survey was conducted to investigate into mycorrhizae in eucalypts introduced in different environments in Pakistan. All the 57 species examined were found capable of farming ectorophic mycorrhizae. General structure of mycorrhizae encountered is the same as…
25 May 2024 - Articles
Effect of radial growth rate on ray number and dimension of some of the ring porous hard-woods
Mohammad Ayaz
Radial growth rate as indicated by ring width influenced ray frequency and dimensions in samples of wood having wide and narrow growth rings of ash (Fraxinus excelsior), Bakain (Melia azedarach), Elm (Ulmas laevigata) and Mulberry (Morus alba). Ash, Elm and Mu…
25 May 2024 - Articles
Effect of soil salinity on the ectomycorrhizal nodules in Eucalyptus camaldulensis Dehn.
Abdul Khalique, A. R. Beg
The work reported here is part of an investigation on the physiological basis of salinity tolerance in Eucalyptus camaldulensis Dehn., - a species extensively planted under irrigated conditions in Pakistan (Khan, 1955). Presented here is the description of an…
25 May 2024 - Articles
The Utilization of food by bigheaded grasshopper, Aulocara elliotti (Thomas)
Naseer Hussain, R. E. Pfadt
Aulocara elliotti nymphs were raised from the first nymphal stage to the final instar on the leaves of crested wheat grass and western wheatgrass. The average efficiency of Conversion of Ingested Food to Body Substance (E.C.Ia of the male grass-hoppers fed on…
25 May 2024 - Articles
History of Forest Management in Pakistan-I
Ghaus Mohammad Khattak
The management of Chir pine forests was first initiated towards 1900 under selection fellings. Since 1915 in the Punjab and 1923 in the forests now included in the North West Frontier Province, the commercially exploitable forests growing on moderately steep s…
25 May 2024 - Articles
Quantitative survey of medicinal plants in Rawalpindi North, Rawalpindi Suoth and Murree Forest Divisions
Anwar Ahmad Khan, Altaf Ahmad
Importance of medicinal plants and their use as a remedy of certain diseases was known to human beings from times immemorial. Knowledge of medicinal plants lead to its logical conclusion, that is, gradual evolution of science of Taxonomy. In the present age be…
25 May 2024 - Articles
Twenty-seventh passing-out ceremony of the Pakistan Forest Institute, Peshawar (October 31, 1975)
Editor
The twenty seventh annual passing out ceremony of the Pakistan Forest Institute was held on 31st October, 1975. Major General (Retd.) Sayad Ghawas, Governor, North West Frontier Province presided over the function and gave away the degrees, medals and prizes.…
25 May 2024 - Articles
Climate change and its impacts on tree growth of blue pine (Pinus wallichiana) found in Malam Jabba, Swat
Tanvir Hussain, G. M. Nasir
A study was conducted to assess the change in climate that has happened in Malam Jabba, Swat Forest Division for the last 30 years i.e. 1985-2015 and its impact on the tree ring widths (growth) of Blue pine (Pinus wallichiana). Results of the study showed an i…
25 May 2024