Use of Physiological Parameters as Tools to Screen Drought Tolerant Safflower Genotypes
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2012, Vol 3, Issue 12
Abstract
Drought stress is one of the major limitations to plant productivity across the world. Identifying suitable screening tools and also quantifiable traits would facilitate the crop improvement process for drought tolerance. In the present study, relative water content, leaf area index, stomata density and stomata length were studied as most important physiological parameters at the grain filling stage of fifteen spring safflower genotypes grown under normal and drought stress conditions in 2007 growing season. The experiment was conducted in Zanjan University, Zanjan, Iran based on randomized complete block design, arranged in split plot with three replications. The results indicated that exposure of plants to drought stress led to significant decrease in relative water content, leaf area index and stomata length and noticeable increase in stomata density. Decrease in above mentioned traits was parallel with yield loss in sensitive genotypes. The results of principal component analysis showed that the first component with more than 68% of total variation is able to separate high yield genotypes from other genotypes. According to obtained results, it seems that Dincer, Kino-74, PI-537598, PI-250537 and Gila genotypes are more suitable genotypes for drought stressed regions.
Authors and Affiliations
Zahra roudbari| M.Sc. plant breeding, Zanjan university, Zanjan, Iran,Zahra.roudbari@gmail.com, jalal saba| Department of Agronomy and Plant Breeding. Faculty of Agriculture, Zanjan University, Zanjan, Iran, farid shekari| Department of Agronomy and Plant Breeding. Faculty of Agriculture, Zanjan University, Zanjan, Iran
Keywords
Related Articles
- EP ID EP5193
- DOI -
- Views 337
- Downloads 17
Examining the Relationship between the Difference of Accounting Profit as well as the Source Profit of Tax Calculation and the Growth and Stability of Profit with an Emphasis on the Type of Industry
The difference between accounting profit and the source profit of tax calculation have been the most important factors affecting the stability, repeatability and growth of profit. It is taken into consideration as import...
Creativity of Spirit in Philosophical System of Mulla Sadra
Imagination and creativity as a higher cognitive function, is of a great importance in today s world. Sustainability of communities and the development of human culture Depends on the imagination and creativity of the pe...
Standards of Healthy Environment and Children Learning
In recent years concerning to a wide development of training coerces, not being in harmony between training and students, is in the center of expert attentions because the environmental physic can affect the learning pro...
Survey of medication error by nurses self-report in intensive care unit of Imam Khomeini hospital-Tehran
The prevalence of medication error has a significant issue related to patient and healthcare system in recent years. The most common medical errors are medication errors that could raise concern about the quality of the...
Modeling in order to Implementation of production balancing determination the best path to transport raw materials with the aim of improving for total expected cost
This article Based on case study in Sanaye Felezi Iran Co. in this research, introduce a model in order to the production balance with the aim of improving for total expected cost. In the first step of research, introduc...