Mutant lines of Arabidopsis thaliana resistant to either spermine (a polyamine), naphthalene acetic acid (an auxin), or benzyl adenine (a cytokinin) were isolated by screening for growth of seedlings ...

Generic limits in Gentiana L. (s.l.) from Pakistan and Kashmir was evaluated chemotaxonomically. Forty four taxa belonging to 8 genera were delimited into three broad groups on the basis of their flav...

Numerical technique has been used to construct the cladogram to depict the natural relationships among the species of the genus Sibbaldia. The cladistic analysis of the genus is presented with a discu...

Pollen morphology of 2 species of the genus Myriophyllum L.. from Pakistan belonging to the family Haloragaceae has been examined by light and scanning electron microscope. Pollen grains are generally...

Andromonoecy is being reported for the first time in Glossonema varians (Stocks) Hook. f. and in the family Asclepiadaceae. Each inflorescence has 2 perfect and 2-6 male flowers. Both type of flowers ...

The anatomy of the seedling of Tessaria absinthioides was studied by the use of serial cross sections. Continuous with the diarch vascular system of the root there are bundles of two types in the hypo...

Meristan tip culture of potato (Solanum tuberosum L) were established on MS medium containing BA and NAA and multiplied on hormone free MS medium. Potato culture survival and growth was significantly ...

Random amplified polymorphic DNA markers were generated in a diploid and two tetraploid salt-tolerani accessions of wild rice species Oryza punctata, O. sativa cuitivars Basmati - 198, IR-6 and F1 hyb...

Genotype X environment interactions and relative stability for grain yield were studied in four durum wheat, one bread wheat and one triticale genotype grown at 5 locations. The yield ranking of the v...

A study was undertaken to estimate correlation coefficient between seed size, starch content and its composition together with the estimation of genetic variability in a range of chickpea genotypes. A...

A pot experiment was conducted to study the effect of N-Serve (nitrification inhibitor) and Baythroid (an insecticide with strong inhibitory effect on nitrification in soil) on dry matter yield and N ...

Effect of nitrogen in the form of urea @ 0, 10, 20, 30, 40, and 50kg N ha-1 by broadcast application, on the growth of Sesbania bispinosa (Dhancha) was studied. An increase in plant height at 15, 30, ...

A controlled conditions study on sunflower grown in root medium with a pH range of 4.5 to 8.5 revealed a consistent growth improvement with the rise in root medium pH. Similarly, the sulphate concentr...

Lettuce (Lactuca sativa var. Great Lakes) grown in soil irrigated with water of different salinities maintained with 0-72mM NaCI showed greater leaf area, shoot / root ratio and dry weight when kept a...

Ten different wheat varieties viz., Rohtas-90, Pirsabak-90, Mehran-89, Chakwal-86, Inqalab-91, Sutlaj86, Sariab-92, LU-26, Rawal-87 and Yecora- 70 were compared for 'water imbibition for 0, 2, 4,...

Soil amendment with Prosopis juliflora, P.glandulosa, P. cinererea and neem cake significantly (p...

More than 300 taxa of the rust fungi (Uredinales) have been reported from Pakistan. (Ahmad, 1956 a,b, 1969, 1976; Jorstad & Iqbal, 1967; Gjaerum & Iqbal, 1969; Mirza & Qureshi, 1978; Khalid et al., 19...

Loose smut of wheat caused by Ustilago tritici (Pers.) Rostr., is one of the major diseases of wheat in wheat growing countries of the world. Upto 7 % losses in wheat variety Kalyansona have been reco...

Plants have the capacity to adjust under variable environmental conditions. Water is generally considered as one of the limiting factors which affects the physiological and biochemical processes affec...