The Effect of Air Temperature on Growth and Alkaloidal Yield of Hyoscyamus muticus L.

Abstract

The effect of natural air temperature on the vegetative growth and alkaloidal yield of H. muticus L. was studied. The highest number of branches, diameter, fresh and dry weights of stem and roots occurred in September sowing at full‐flowering and fruiting stages. Relatively higher temperature in Sept. sowing favoured leaf growth (number, area and dry weight). Hyoscyamine yield in different organs of the plants sown in Sept., excessively exceeded all other sowings during flower budding and full‐flowering stages. Hyoscine yield was quantitatively very small as compared with that of hyoscyamine and even could not be detected in the leaves of winter sowings during full‐flowering stage.

Effect of Bio- Fertilization and Some Plant Extracts on the Growth, Yield and Chemical Constituents of Basil Plant

“…The same trend was obtained during the two seasons. Similar results were observed by Selim (2005) on mint and sage and Reda et al, (1999) reported that, foliar application of bio-fertilizer of dry yeast significantly stimulated the photosynthetic pigments (ch. A, b and carotenoides) of Hyoscyamus muticus plants.…”

Influence of foliar spray with phenylalanine and nickel on growth, yield quality and chemical composition of genoveser basil plant

“…The results within hand are in agreement with those obtained by Youssef et al (2004) on lemon basil, Talaat and Youssef (2002) on basil, where they found that foliar application with different amino acids significantly enhanced plant growth, oil content and yields of herb and oil. Similar findings were obtained in tobacco (Darwish and Reda, 1975), Datura (El-Bahr et al, 1990), Hyoscyamus muticus L. (Reda et al, 1999), Iberis amara L. (Attoa et al, 2002) and chrysanthemum (El-Fawakhry and ElTayab, 2003) where different amino acids augmented plant growth during vegetative and flowering stages, and produced a high quality of inflorescences. Studies have proved that amino acids can directly or indirectly influence the physiological activities in the growth and development of plants.…”