The Effects of Different Levels of Salinity and Indole-3-Acetic Acid (IAA) on Early Growth and Germination of Wheat Seedling
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2013, Vol 9, Issue 4
Abstract
Salt stress as a major adverse factor can lower germination, ion toxicity, reduction in enzymatic and photosynthetic efficiency and other physiological disorders and ultimately lower crop productivity in salinity zones. As growth regulators are involved in altering growth processes in plants, it is possible that they might even reduce the detrimental effects of salinity by stimulating growth. But their physiological roles are not well known. In example, about the roles of IAA in salinity conditions are not similar viewpoints. For this purpose a factorial experiment based on completely randomized design was conducted with influence of foliar application of Indole-3-Acetic Acid (IAA) in farm on germination percent and seedling growth parameters of wheat (cv. Marvdasht) under different levels (0, 40, 80 and 120 mM) of NaCl salinity with 3 replications, during 2012 in the laboratory research of the Department of plant breading and agronomy, Faculty of Agriculture, Maragheh University in Maragheh state in Iran. The results of this study indicate, that salinity decreased the plumule, radicle and seedling length and plumule, radicle and seedling dry weight, seed germination and seedling vigor index, whereas increase in mean germination time and no signification plumule/radicle ratio observed in the cultivar tested. Also, application of IAA at cell division stage of grain growth caused significant increase in seedling growth parameters under different salinity levels. The interaction between application of IAA and salinity levels significantly affected final germination percentage. Highest final germination percentage was recorded with IAA with increasing salinity level from 0 up to 120 mM NaCl (98.3, 98.3, 96.7 and 100% without significant differences between them, respectively).
Authors and Affiliations
Majid Abdoli, Mohsen Saeidi, Mandana Azhand, Saeid Jalali-Honarmand, Ezatollah Esfandiari, Fariborz Shekari
Keywords
Related Articles
- EP ID EP151861
- DOI -
- Views 120
- Downloads 0
Free Radical Scavenging Activity and HPLC Analysis of Araucaria cunninghamii Aiton ex D. Don Leaf Extract
[b]Background:[/b] Several diseases are caused in the body due to oxidative stress of free radicals. The objectives of the present study were to investigate the antioxidant activity of [i]Araucaria cunninghamii[/i] Aiton...
Effect of Salt Stress (NaCl) on Germination and Early Seedling Parameters of Three Pepper Cultivars (Capsicum annuum L.)
Salinity is one of the major environmental problem that lead to a deterioration of agricultural land and, as a result, to a reduction in crop productivity worldwide. This research tested the effect of different salinity...
Monitoring the sensitivity of selected crops to lead, cadmium and arsenic
Heavy metals are highly toxic environmental pollutants. In plants, these compounds cause numerous slighter or stronger toxic effects. They inhibit root and shoot growth and yield production, affect nutrient uptake...
Alzheimer’s disease: A Threat to mankind
Alzheimer’s disease (AD) is neurodegenerative disorder common among elderly involving deficits in memory and cognition. There has been a long history of research and medical practice in AD worldwide, during which differe...
Влияние гипертермии и заражения на активность общей пероксидазы картофеля двух сортов, контрастных по устойчивости к Clavibacter michiganensis ssp. sepedonicus
Изучали изменение активности общей пероксидазы в растениях in vitro, в вегетирующих растениях устойчивого и восприимчивого сортов картофеля под влиянием абиотического (гипертермии) и биотического (заражение патогеном) ст...