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Pneumatophore density of mangrove Avicennia marina from different locations of Karachi ranged from 56-520 m-2 with a mean value of 278m-2 +/- 135 SD, their height ranged from 2-32 cm with a mean value...

The distribution and frequency of marine algae along the eastern coast of Libya (Cyrenaica) showed the presence of 168 species, 6 varieties and 2 forms. This includes 56 Chlorophyceae, 37 Phaeophyceae...

Taxonomy, morpho-anatomy and some biological notes of 4 genera with 6 species viz., Colpomenia sinuosa (Mertens ex Roth) Derbes & Solier, Igengaria stellata (Boerg.) Boergesen; Rosenvingia fastigiata ...

Cultures of Fusarium solani extracted in toluene/ethyl acetate/90% formic acid (5/4/1, v/v) showed consistent profiles, of secondary metabolites on thin layer chromatographic plates. These profiles, a...

Growth and fruiting of five cultivars of tomato viz., Tropic, pearson, Monte Carlo, ACE-55 and Strain B were studied at different salinity levels ranging between 34-272 mM NaCl. Reduction in growth at...

The effects of 0, 25,50 75 and 100 meq.l-i sodium chloride on some physiological proceses of gram was studied in solution culture. Fresh and dry weight of cotyledons significantly changed (P < 0.05) a...

A drought resistant variety of wheat (Pak-15800) was compared with a susceptible variety (Sarsabz) under water stress and the relationship between leaf water, osmotic, turgor potentials and relative w...

Callus cultures of Zingiber officinale obtained from rhizome explants bearing shoot primordia and juve nile shoots on Murashige and Skoog basal medium supplemented with various growth hormones produce...

A micropropagation method was developed from immature embryo-derived shoot tips of Delonix regia on Murashige and Skoog's medium. Shoot multiplication occurred through proliferation of axillary leaf b...

Methods were developed for callus induction and efficient plant regeneration from mature embryos and immature inflorescences of basmati rice (Oryza sativa L cv. Basmati-370). Callusing from seeds of r...

Mesocotyl segments of Brassica juncea var. poorbiraya from in vitro grown seedlings were tested for their callogenic and thence morphogenic potential with various treatments of plant growth regulators...

Aristolochia bracteolata Lamk. is partially Protogynous. The flower exibits fly-trapping mechanism. Only one pollinator, belonging to the genus Forcipomya (Diptera; Ceratopogonidae) is involved. The p...

The hybridization between Acacia nilotica subsp. indica and A. nilotica subsp. cupressiformis is substaintiated by the study of phenolic constituents, The hybrids have additive or some new compounds, ...

The genus Gentiana L. (s.l.) is a heteromorphic assemblage. A synthetic approach is adopted to treat Gentiana L (sl.) from Pakistan and adjoining areas by utilizing the data from palynology, seed morp...

Ipomoea sindica Stapf is reinstated as a species distinct from I. eriocarpa R. Br. on the basis of chemotaxonomical and micromorphological evidences. Further, it is made clear that I. sindica Stapf is...

One hundred and twelve mungbean genotypes selected from a broad based local as well as exotic germplasm during last three years, were evaluated for agronomic characters and incidence of yellow mosaic ...

A Monte Carlo algorithm is proposed to assign a new or unclassified operational taxonomic unit (O.T.U.), with variable characters, to the group it is closest to. The method involves a bootstrap resamp...