Dr. Sultan Ahmad, an eminent mycologist, died of heart attack on 11 th November 1983 in Lahore after a long illness. He was a chronic patient of diabetes melitus. In the later part of his life he de...

The composition and distribution of fresh-water algae in Makkah area of Saudi Arabia were investigated. Of a total number of 107 species recorded, 37 belong to Cyanophyta, 34 to Bacillariophyta, 29 to...

Poropsis Kütz., is retained as a genus of its own because of smooth axes, absence of articulations and lobules....

Using ISTA techniques, 9 genera and 22 species of fungi viz., Alternaria alternata, A. tenuissima, Aspergillus candidus, A. clavatus, A. jlavus, A. fumigatus, A. niger, A. sulphureus, A. terreus, A. ...

Verticillium chlamydosporium isolated from eggs of Meloidogyne incognita, root knot nematode, inhibited the growth of Macrophomina phaseolina, Rhizoctonia solani Fusarium solani and F.oxysporum i...

Pscudomonas species isolated from soils cultivated with citrus plants (204) and plant galls (46) in the Jordan Valley were physiologically and biochemically classified into fluorescent group (74) and...

 A study was made on the seasonal fluctuations in N2-fixing (C2H2 reduction) activity and uptake hydrogenase activity of the root nodules of Coriaria nepalensis and Datisca cannabina. Nitrogenase...

An actinomycete (Dc2) was isolated from the nitrogen fixing root nodules of Dalisca cannabina. The actinomycete Conned hyphae and sporangia, like typical Frankia strains but failed to infect host pla...

The effect of salinity on the growth of Rhizobium spp., isolated from Prosopis glandulosa and P. juliflora was studied in vitro. Growth of Rhizobium isolated from both Prosopis species increa...

Salt tolerance of Pallicum antidotale Retz., was studied using gravel culture with root medium electricaI conductivity (EC) levels ranging from 3 to 20 dS/m. Salinity decreased the seed germination ...

Experiments were carried out to screen local and exotic species/accession/provenances of Prosopis species at germination and seedling stages under salinity conditions. Field trials were also underta...

To produce salt-tolerant wheat germplasm through wide hybridization, 8 different salt-tolerant accessions of Ae. cylindrica were crossed with 3 hexaploid wheat cultivars: Pak-81, LU-26, and Shalimar...

The interactive effects of different salt concentrations (EC: 0, 10 and 20 dS.m-1) and waterlogging levels of 75, 100 and 125% water holding capacity on growth of Atriplex amnicola Paul G. Wilson in...

Four varieties of wheat viz., C591, C273, Pak-81 and Pirsabak-85 partitioned different proportions of assimilates to the different organs having different functions. Varieties C591 and C273 grew talle...

Relationship between physical properties affecting postharvest water loss in pepper fruits wereexamined. Three pepper types viz., 'Keystone' (Bell Pepper), 'NuMex R Naky' (long green) and 'Santa AI Gr...

Field experiments were conducted at the Australian Demon stration Farm at EI-Marj Libya during the winter season 1988-89 and 1989-90 to determine the efficacy of herbicides on grassy and broad leaf we...

Effect of contemporary rotation simulation on grain weight, protein and lysine content of four commercial cuhivars (Pavon, Sarsabz, Mehran 89 and T.J. 83). and 21 new promising strains of bread wheat ...

Response of cotton pollen to 05, 1.0, 2 and 5 kR of gammarays prior to cross pollination was determined in various cross-combinations. A low dose of 0.5 kR applied to pollen enhanced boll set and seed...

Karyotypic analysis of Lens culinaris Medic., s.sp. Macrosperma Laird x Precoz was carried out to dcrermine the chromosomal positions. The diploid chromosome number was 14. The Karyotype character...

Within the Triticeae, cereal crop improvement alternatively exploits use of alien genetic variation emanating from several annual and perennial species. Somatic and meiotic cytological procedures are ...

This research evaluated the stability performance of sunflower cultivars in two groups of regional trials in the Northeast part of Greece. Genotype-environment interaction was measured by Ihe linear r...

Polymerase chain reaction was used to detect polymorphism in 10 different salt-tolerant wheat introgression lines produced through wide hybridization, 2 cultivated hexaploid wheat varieties, a tetrapl...

Suspension cultures of Nicotiana tabacum cv. Virginica established from epidermal tissue-derived callus on medium supplemented with 5x10-6M NAA alone or with 5xl0-7 M kinetin when subcultured on au...

A protocol for excising and culturing cotyledon explants from seeds of different ages of Aegle marmelos was developed. Cotyledon explants formed callus and shoot buds on agarsolidified Murashige & S...

Trichomes from the leaves of 11 species of Pelargonium L' Herit., were examined with the S.E.M. Trichomes observed were of either non-glandular unicellular and uniseriate-type or were glandular, uni...

Using Scanning Electron Microscope a micromorphological study of leaf and seed coat surfaces of all the 7 species in the genus Medicago L, from Pakistan was carried out. The seed coat sculpturing re...

Pollen morphology of 42 species belonging to 12 genera of the family Malvaceae from Pakistan were examined by light and scanning electron microscope. Pollen morphology of the family is fairly uniform....

The effect of Meloidogyne graminicola on root morphology and growth of rice and the Echinochloa colonum grass was investigated under glasshouse conditions. Invasion by nematode juveniles reduced t...

The first three components (explaining 71.75% of the total variance) derived from principal component analysis were used to define the ecological niches of the plant populations in a desert landscape....

Dielectric properties of fresh leaves of Ficus benghalensis, F. elastica, F. religiosa and Morus nigra (Moraceae) and Hibiscus rosa-sinensis and Gossypium hirsutum (Malvaceae) were measured wi...

Astragalus (Bentham, 1865). This was maintained by Baker (1876) and more recently by Ali (1977). Rechinger f. (1957) described a new genus Kerstania Rech. f. based on K. nuristanica Rech. f. whic...