Evaluation of Traits Related to Water Deficit Stress in Winter Rapeseed Cultivars
Journal Title: Universal Journal of Environmental Research and Technology - Year 2011, Vol 1, Issue 3
Abstract
In order to evaluate traits related to water deficit stress in winter rapeseed cultivars and to determine the tolerant and sensitive cultivars, an experiment was carried out in factorial based on randomized complete block design with 3 replications in the greenhouse of Agricultural Faculty of Tabriz-Iran University. First factor including 12 winter rapeseed cultivars, named: Zarfam, Okapi, Modena, Dexter, Olera, Licord, Arc-4, Elite, Opera, SLM046, Fornax, Orient; and the second factor include different levels of water stress that were: severe stress (50% FC), mild stress (75% FC) and well watered (100% FC) conditions. Water deficit stress was imposed from stem elongation to physiological maturity. Moreover, gypsum blocks were used to control the soil moist. The results indicated that there is a significant difference between cultivars and stress related to studied traits. Also, cultivars * stress interaction of proline content and seed yield was significant. The mean comparison of cultivars showed that SLM046 and Orient cultivars have the highest value, while Fornax and Olera cultivars have the lowest value. According to drought tolerance, MP, GMP and TOL indices were the most favorable indices. Also SLM046 and Orient are the most tolerant cultivars under severe stress and mild stress conditions respectively, while Fornax is the most sensitive cultivar in both conditions. The canonical correlation analysis under three environmental conditions showed significant correlation between canonical variables of physiological traits and yield related traits. The regression analysis in different stress levels demonstrated that the silique per plant and seed per silique has important role in increasing seed yield and these verities can help to choose cultivars. The cultivars grouping by cluster analysis showed that in middle stress levels SLM046 and Orient has been placed in same group and have higher value than overall mean. Moreover, Fornax and Olera cultivars hold lower value and are placed in another group. Other cultivars are settled in between.
Authors and Affiliations
Ghader Ghaffari, Mahmoud Toorchi, Saeid Aharizad, Mohamad-Reza Shakiba
Keywords
Related Articles
- EP ID EP31658
- DOI -
- Views 376
- Downloads 1
Frequency Analysis of Flood Flow at Garudeshwar Station in Narmada River, Gujarat, India
This paper presents a frequency distribution study on maximum monthly flood data in Narmada River at Garudeshwar station using widely used frequency distributions for periods from 1949 to 1979. The Normal, Lognormal, L...
Assessment of Heavy Metals in Sediments from Coastal Al-Hodiedah Governorate, Yemen
The special Location of Al-Hodiedah Governorate which is located at an area that links the Red sea and the seasonal monsoon affect marine ecosystem of the Al-Hodiedah coast. Five location at Al-Hodiedah sea shores were...
Transformation of Wet Garbage of Indian Urbanites at Household Level
Human activities of all sorts generate waste and waste has to be managed properly. An illusion that anyone can think of is to throw the accumulated waste away from homes to keep clean and tidy within their dwellings. Th...
Microbiological Analysis of Chlorinated Water Supplied in Jaipur
Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). In almost all cases the effect is damaging not only to individual species and populations, but also to the na...
Challenges of Environmental Management in Indian Coal Mining Sector
Mining adversely affects the eco-system as a whole. It is important to conduct suitable assessment studies to learn the potential adverse impact of mining on flora and fauna. To overcome from the problems one should ha...