|
Abstract
|
Article Information:
Identification of Resistance to Pythium ultimum in Sunflower Seedlings
Mohammad R. Asgharipour
Corresponding Author: Mohammad R. Asgharipour
Submitted: December 23, 2011
Accepted: January 21, 2012
Published: April 05, 2012 |
Abstract:
|
In order to evaluate Pythium-mediated damping-off a laboratory experiment was conducted at
Biotech Research Center of the University of Zabol, in 2010. The experimental design was a completely
randomized with seven genotypes, together with seven replicates. The seeds were inoculated in oospore
suspension of fungi (105 mg/mL) for 1 min. After 5 days, seedlings were evaluated with an aim to counting
non-germinated seeds, abnormal seedlings and healthy seedlings. Then the healthy seedlings were planted in
pots after infecting seedlings through a piece of paper towels contaminated with fungal suspension, and normal
seedlings were counted after 12 days. The result showed that there were significant differences among the
genotypes for all evaluated traits. The greatest non-germinated seeds were observed in Azargol with 38% and
followed by Record and Allstar. Azargol also had the highest abnormal seedlings (86%) and the minimum
abnormal seedlings were observed in Xaria with 72%. Regarding normal seedlings at pot, Golshid and Hysun-
33 were superior with 60 and 49%, respectively. These findings suggest that all genotypes had a high
susceptibility to P. ultimum. Also, results obtained from the paper towel experiment were different to the results
of the soil.
Key words: Germination, resistance, seed, suspension, zoospore, ,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
Mohammad R. Asgharipour, . Identification of Resistance to Pythium ultimum in Sunflower Seedlings. Current Research Journal of Biological Sciences, (3): 273-274.
|
|
|
|
 |
ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
