Evaluation of drought tolerance in sunflower (Helianthus annus L.) under non stress and drought stress conditions
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 1
Abstract
To evaluate some of agronomic and physiological characteristics under drought stress, determining the best quantitative indices for drought resistance, and identifying drought resistant of sunflower lines, field experiment with 36 sunflower genotypes was carried out in 2010 at the research farm of Dryland Agricultural Research Institute (Sararood). 36 lines of sunflower were tested in a 66 lattice design with two replications under two different water conditions at flowering and seed development stages. Some of agronomic and physiological characteristics under drought stress were measured during the growing season. Based on the results of correlation between drought indices with seed yield in stress and non-water stress environment, MP, GMP, Harm and STI exhibited a high correlation with seed yield in either environment. These indices were recognized as the best for selecting cultivars with high yield potential in either of the stress of non-stress environments. The genotype SIL-237 had the highest drought resistance based on Harm, GMP, MP and STI. The genotype SIL-237 revealed the highest yield in non stress and stress condition. Cluster analysis grouped the 36 genotypes within 3 clusters, each of which having 17, 18 and 1 genotypes.
Authors and Affiliations
Seyed Mehdi Safavi, Azam Sadat Safavi, Seyed Afshin Safavi
Keywords
Related Articles
- EP ID EP38178
- DOI -
- Views 150
- Downloads 0
Current conservational status of marsh crocodiles in Haleji Lake Wildlife Sanctuary
The present study on conservational status of Marsh Crocodiles, Crocodylus palustris has been carried out from the Haleji Lake Wildlife Sanctuary (HLWS) Thatta, Sindh, Pakistan. This research study was carried out durin...
Comparison of growth forms and life forms of rangeland plants under different methods of rangeland management (case study: rangelands around Bojnourd city)
Planning and optimal management of rangelands is important to achieve to vegetation changes in enclosure and enclosure rangelands. In this study due to the lack of sufficient research was compared the effect of each of...
Effect of application elements, water stress and variety on nutrients of grain wheat in Zahak region, Iran
Wheat (Triticum aestivum L.) is one of the main cereal crops in the world together with maize and rice. Drought stress is the most important limiting factor of field crops in Iran. Most parts of Iran’s cultivation land...
Reproductive biology and seed germination of tropical evergreen tree Canarium strictum Roxb
Canarium strictum Roxb. (Burseraceae) an evergreen tree was studied for its phenology, flower morphology, pollen viability, stigma receptivity, seed setting and seed germination. This species has got meager population...
Comparison removal malachite green and methylene blue from aqueous solutions by new adsorbent prepared from Rosa canina
In this research, low cost activated carbon simply was prepared from a local , plenty Rosa canina tree (AC-RC) in sou´wester of Iran. The potential applicability of AC-RC as useful adsorbent for the removal of Malachite...