INFLUENCE OF DIFFERENT SEED PRIMING METHODS FOR IMPROVING SALT STRESS TOLERANCE IN LETTUCE PLANTS

Autor:	Imen Ben Salah, Abdelali Hannoufa, Hela Mahmoudi, Mokhtar Lachaâl, Olfa Baatour, Imen Tarchoune, Raouia Ben Massoud, Nawel Nasri, Zeineb Ouerghi, Wissal Abidi, Rym Kaddour
Rok vydání:	2012
Předmět:	biology Physiology Sodium food and beverages chemistry.chemical_element Potassium nitrate Priming (agriculture) Malondialdehyde Salinity chemistry.chemical_compound Horticulture chemistry Dry weight Catalase Botany biology.protein Agronomy and Crop Science Gibberellic acid
Zdroj:	Journal of Plant Nutrition. 35:1910-1922
ISSN:	1532-4087 0190-4167
DOI:	10.1080/01904167.2012.711410
Popis:	Seeds of lettuce, variety Romaine were subjected to different priming treatments such as water, potassium nitrate (KNO3) and gibberellic acid (GA3). Seedlings obtained from primed (Pr) and nonprimed (NP) seeds were grown in a hydroponic culture system supplemented with 0, 100 or 200 mM sodium chloride (NaCl). The different physiological and biochemical responses were studied 15 days after treatment. Under NaCl, the dry weight was higher in plants derived from hydro-primed (HP) seeds when compared to NP, osmoprimed (KNO3P), and hormonal primed (GA3P) ones. Under control and 100 mM NaCl treatment, malondialdehyde (MDA) content and EL did not show any correlation with activities of gaiacol peroxidase (GPX) and catalase (CAT), but did with the increase in reduced ascorbate (AsA) and total ascorbate contents. The results indicated that plants derived from HP seeds exhibited higher adaptive potential under salinity stress. Our findings suggest that a hydropriming technique can be used as a simple commercial app...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::baa2cffb006240ba8bee5449f5b65227 https://doi.org/10.1080/01904167.2012.711410 Zobrazit plný text záznamu