Soil salinity is the major limiting factor restricting plant growth and development. Little known about comparative combined effects of gibberellic acid (GA3) seed priming foliar application on maize under salt stress. The current study determined impact different concentrations GA3 morpho-physiological photosynthetic attributes seedlings stress treatments (no severe salinity-15 dSm-1). consist...

this research investigate the effects of different concentrations of salt: 0, 75, 100, 150 (mm nacl) and concentration of 0.05 mm gibberellic acid and 5µm salicylic acid on the content of proline and a, b chlorophylls of canola (hayola 401 and rgs). the results showed that with increasing in the amount of salinity in both chlorophylls decreased and the amount of decrease in chlorophyll b was mo...

Growth regulating factors (GRFs) are plant-specific transcription factors that are involved in diverse biological and physiological processes, such as growth, development and stress and hormone responses. However, the roles of GRFs in vegetative and reproductive growth, development and stress responses in tomato (Solanum lycopersicum) have not been extensively explored. In this study, we charac...

Lunularic acid (LA) inhibited not only the germination and the growth of cress and lettuce at 1 mM but also the gibberellic acid (GA3)-induced alpha-amylase induction in embryoless barley seeds at 120 microM, which was recognized as a specific activity of abscisic acid (ABA). Moreover LA and ABA equally inhibited the growth of Lunularia cruciata A18 strain callus at 40 and 120 microM. A computa...

Leaf elongation rate (LER) is an important factor controlling plant growth and productivity. The objective of this study was to determine whether genetic variation in LER for a fast-growing ('K-31'), and a dwarf cultivar ('Bonsai') of tall fescue (Festuca arundinacea) and gibberellic acid (GA) regulation of LER were associated with differential expression of cell-expansion genes. Plants were tr...

The aim of the present work was to evaluate the changes in polyamine (PA) content, peroxidase (POX) activity and levels of total protein and total soluble carbohydrates throughout the lifetime of leaves and inflorescences of chrysanthemum ‘Faroe’ treated with gibberellic acid (GA3) (used in production practices) and kept at room temperature and cold storage. The treatments were composed of four...

This study aimed to estimate the production of seeds per umbel and assess both effect gibberellic acid (GA3) order on seed germination in Amazon chicory species. The experiment was conducted two steps. Firstly, traits related were evaluated. Afterward, a test carried out, following parameters assessed: speed index (GSI), average time (AGT), percentage (%G), abnormal seedlings (%AS), non-germina...

After the success of IR8 and TN1, breeders depended heavily on these two rice cultivars for source of short stature led to the narrow genetic base to majority of present day rice varieties, as far as sd1 (semi-dwarf1) gene is concerned. In addition, analysis of genetic lineage of the majority of the cultivated rice varieties in tropical Asia reveals that sd1 from DGWG (Dee-GeeWoo-Gen) is the ma...

Submerged aquatic macrophytes such as Potamogeton crispus can absorb large quantities of nutrients from sediment and water, and therefore mitigate pollution and improve water quality of polluted lakes. Turions are the main propagules of P. crispus; their formation is an important process in the life cycle of the plant and relates closely to the population dynamics of the species in lakes. The c...

Inflorescence development of the 'Hass' avocado (Persea americana Mill.) was investigated at the macro and microscopic level. Near the end of shoot extension, two secondary axis meristems were present in the axils of inflorescence bracts. The primary axis meristem changed shape from conical to flattened to conical followed by the initiation of additional bracts and associated secondary axis inf...