October 2008
Evaluation of crisphead lettuce cultivars (Lactuca sativa L.) for winter production in a soilless production system
Soilless cultivation of lettuce gained popularity in recent years in South Africa because of improved yield and quality. Thirteen crisphead lettuce cultivars were evaluated in a gravel-film production system during the winter season at the experimental farm of the ARC-Roodeplaat. The experiment was laid out as a randomized complete block design with five replicates. For each cultivar, yield, internal quality,...
October 2008
Exogenous ascorbic acid (vitamin C) induced anabolic changes for salt tolerance in chick pea (Cicer arietinum L.) plants
The effect of exogenous supply of ascorbic acid on growth and metabolic changes in chick pea under salinity treatment was carried out in pot experiment. The exogenous supply of ascorbic acid (4 mM) improved the fresh and dry matter gain in roots, shoots and leaves of chick pea (Cicer arietinum L.) Plants attenuated by the salt stress (40 mM NaCl) environment in the soil solution. Significant synergistic effect...
October 2008
Phytochemical and antioxidant screening of some plants of apocynaceae from South West Nigeria
The phytochemical and antioxidant properties of Strophantus hispidus (stem and root), Voacanga africana (stem and leaf) and Thevetia neriifolia (stem and leaf) were investigated. The parts of the plants used were based on those used locally. All the plants tested positive for the presence of tannins, flavonoids and cardiac glycosides, all except S. hispidus (stem) tested positive...
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