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Information Journal Paper

Title

INVESTIGATION OF GIBBERELLIN AND HARVESTING TIME EFFECT ON GERMINATION OF FOUR IMPORTANT SPECIES AMARANTHUS L. WEEDS

Author(s)

ALAZMANI M. | GHORBANLI M.

Pages

  62-68

Abstract

 Amaranthus species is one of the most important plant species in Golestan Province which mainly are found in arable lands with spectrum of loam to clay, good permeability with highly nutrients. Four species of A. VIRIDIS, A. ALBUS L., A. hybridus. L. and A. retroflexus are grouped as seeds with wide extension in different farmlands of Gospel, Soybean, Maize, watermelon, Melon and tomato, also in gardens, margins of barriers and barren are grown. This experiment had been carried out with applying harvested seeds in summer (July) and autumn (November) from mentioned species treated with temperature of 25±1?C and 24 hours darkness and treatment with distilled water and 1000 ppm Gibberellin. Rate GERMINATION occurred in summer seeds of A. VIRIDIS with distilled water and the most GERMINATION also in this species caused at Gibberellin treatment. The lowest GERMINATION by percentage was observed in A. VIRIDIS autumn seeds and the most was observed at A. retroflexus with Gibberellin treatment. The highest influence of Gibberellin treatment 1000 ppm in summer seeds by of A. VIRIDIS with 46.7% and autumn seeds with 68.5% increase was observed. Generally A. VIRIDIS had better response to Gibberellin treatment and time prolonged of seed harvest, but these treatments has not any positive influence on increased GERMINATION.

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