Growth responses of rice seedlings to triacontanol in light and dark

Abstract

Triacontanol, a 30-carbon primary alcohol, applied in nutrient culture solutions to rice (Oryza sativa L.) seedlings at 2.3×10(-8) M (10 μg/l), caused an increase in dry weight and leaf area of the whole plants. The response could be observed as early as 3 h of treatment. It was observed at relatively high and low light intensities as well as in the dark where control plants lost but triacontanol-treated plants gained in dry weight. The dry weight gain in the dark was, however, eliminated by removing CO2 from the atmosphere. Triacontanol-treated plants also increased their content of Kjeldahl-N and contained 30% more total N per plant than controls after 6 h in the dark.

Influence of plant growth regulators on growth, morpho-physiological characters and yield of summer sesame (Sesamum indicum L. cv. Rama) under moisture stress

“…Higher CGR was noticed with higher LAI and this was probably due to higher light interception by leaves followed by higher photosynthesis and accumulation of more photosynthates, which led to the ultimate seed yield. These results are in conformity with the experimental results of Ries & Wert (1977), Menon & Srivastava (1984), Tesar (1984). LAD was dependent upon LAI.…”

Effect of Triacontanol on Plant Cell Cultures in Vitro

“…Although the effect of triacontanol on whole plants does not require light (14), tobacco callus responded to triacontanol only in the light (Fig. 1).…”

Optimizing nitrogen levels combined with gibberellic acid for enhanced yield, photosynthetic attributes, enzyme activities, and artemisinin content of Artemisia annua

“…Terpenoid biosynthesis through mevalonate-isoprenoid pathway occurs in oil glands that are present in the leaves of the many aromatic plants. The substances that can improve leaf development of herbage have been used to increase terpenoid yield (Ries and Wert, 1977). In fact, the leaves are the major site of trichomes in which the biosynthesis of artemisinin occurs, and the increase in artemisinin content by application of GA 3 and N application is obvious.…”