Growth, Mineral Composition, and Seed Oil of Sesame (Sesamum indicum L.) as Affected by Boron and Exchangeable Sodium

Abstract

A solution culture boron experiment was conducted with sesame (Sesamum indicum L.) to show the effects of excessive B. The boron content of leaf blades, petioles, and stems was highly correlated with substrate boron. The leaf blades contained the highest amount of boron, and the stems the least. Concentrations of 5 mg B/liter or higher inhibited growth, seed production, and resulted in a leaf necrosis and premature leaf drop. Foliage of plants receiving excess B contained > 700 µg B/g on a dry weight basis.An exchangeable sodium experiment using clay soil with and without a synthetic soil conditioner showed that yields were sharply reduced at an ESP level of 15 or greater. Leaf blade sodium was higher for the treatments without the soil conditioner but in both series (± conditioner), 50% growth depression was associated with leaf values of about 0.4% Na. Potassium and Mg in the leaf blades did not vary significantly, and although calcium was decreased 50% with increasing ESP, no visual deficiency symptoms were detected. The oil content of the seed was decreased slightly with ESP levels of about 25.

Reduction in growth and yield of Jerusalem artichoke caused by soil salinity

“…180 mM kg-1) above which yield decreases in sunflowers (Chhabra etal. 1979) and sesame (Yousif et al 1972). There does not appear to be a critical leafNa in artichokes because, when ECi, was 5.5 dS m-1, leaf Na was low (6 mM kg-1) and similar to that of the control treatment (Fig.…”

Boron Application for Corn Grown on Selected Southeastern Soils1

“…It is not known if these increa~es were ~ue to accumulations within the root or to sml contammations although roots were washed with deionized water. Vlamis and Williams (19) and Yoqsif, Bingham, and Yennanos (20), working with barley (Hordeum vulgare L.) and sesame (Sesamum idicum L.), respectively, in nutrient solution, did 1;10t observe a B _accumulation in roots with increasmg B concentratiOn in the solution.…”

Characterization of plant growth-promoting traits of Penicillium species against the effects of high soil salinity and root disease

“…These chemicals are expensive and harmful to other beneficial biological organisms and pollute the environment (Hariprasad et al 2011). Sesame can moderately tolerate saline soils (Yousif et al 1972), and biofertilizers may be useful in remediating salt stress effects and increase plant yield. To date, there have been no studies that have investigated the presence of amino acids in Penicillium fungal cultures, and their role in plant growth promotion.…”