Articles
1,213 open-access articles · page 6 of 61
ArticlesDiseases of Sweet Basil (A Review)
Khial Badshah, Zakaullah
Sweet basil (Ocimum basilicum), a member of Labiatae, is probably a native of India and Africa. It is well-known for its aromatic qualities and use in condiments. The seed yields golden yellow essential oil which is employed in perfumery and various beverages.…
25 May 2024- Articles
Outbreak of Dasychira sp. in Pine forest of Swat
Wali-ur-Rehman, M. Ismail Chaudhry
An out-break of pine defoliator (Dasychira sp.) occurred in 1977 in about 900 hectares of Chir pine forest in Swat. About 190 hectares of the forest was defoliated very heavily. The pest preferred southern, eastern and western aspects as an average population…
25 May 2024 - Articles
Effect of harvesting frequency on forage yield
Abdul Aleem, M. Noor
Studies were conducted at Range Research Nursery, Pakistan Forest Institute, Peshawar during 1977-78 to determine the effect of harvesting frequency on Napier hybrid bajra (fortnightly, monthly, bimonthly and final) and Vicia sativa (monthly,1-1/2 monthly, bim…
25 May 2024 - Articles
Seed Germination of Ephedra nebrodensis
Mussarrat N. Ali, Anwar Ahmad Khan, Shakeel Haider Zaidi
Dipel and Bactospheine, the commercially available microbial insecticides based on Bacillus thuringiensis, have been tested against poplar defoliator (Ichthyura anastomosis Steph.) First in the laboratory then in the field. Both have shown their efficacy again…
25 May 2024 - Articles
Silvicultural Research Notes
Mahmood Iqbal Sheikh
Intro: Growing Cupressus arizonica with drip system of irrigation. To find out whether drip system of irrigation could be usefully employed to raise trees at Ziarat (2440 m A.S.L.), av. ann. rainfall 380 mm, average maximum and minimum temperatures 18.3°C a…
25 May 2024 - Articles
Racial difference in the efficiency of food utilization of silkworm, Bombyx mori L.
Sardar M. Rafique, Ghulam Ali Bajwa
Coefficients of food utilization namely, ingestibility, efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD) and approximate digestibility (AD), vis-a-vis larval body weight gain (LBWG) were calculated for seven silk…
25 May 2024 - Articles
Seeding periodicity in blue pine
K.M. Siddiqui, Mohammad Parvez
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 latit…
25 May 2024 - Articles
Granular insecticides for the Control of olive psyllid Euphyllura olivina Costa.
Wali-ur-Rehman, M. Ismail Chaudhry
In a field trial six granular insecticides have been tested against olive psyllid ( Euphyllura olivine Costa)in 20,25 and 30 g per plant of 60,150and 240cm height. Termik gave 100%kill of nymphs and adults within 3 to 7 days in each height groups of plants. Te…
25 May 2024 - Articles
Development of nuclear polyhedrosis virus in silkworms, Bombyx mori Larvae and its impact on sericulture in Punjab, N.W.F.P. and Azad Kashmir
R. H. Jafri Dr, K.M. Saleem, R. Iqbal, Qaisra Fazal
Diseased larvae of silkworms were collected from different rearing areas of Pakistan and Azad Kashmir in 1975-76. Nuclear polyhedrosis virus was identified as one of the causal agents responsible for the death of millions of silkworm larvae in Pakistan and Aza…
25 May 2024 - Articles
A 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
Status and conservation of pheasants in Kaghan valley
Mian Muhammad Shafiq, Muhammad Saqib
Pheasants are considered the most beautiful birds in the world. Out of 49 species of pheasant found in the world five species i.e. Monal, (Lophoporus impejanus) koklass (Pucrasia macrolopha), Kalij (Lophura leucomelana), western horned Tragopan (Gragopan melan…
25 May 2024