Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by Mahmoud Al-Khatib
Total Records ( 4 ) for Mahmoud Al-Khatib
  Khalaf Alhussaen , Emad I. Hussein , Khalid M. Al-Batayneh , Mahmoud Al-Khatib , Wesam Al Khateeb , Jacob H. Jacob , Mohamad A. Shatnawi , Ashraf Khashroum and Mohamed I. Hegazy
  Garlic extract is well known for its antibacterial and antifungal activity and is used to treat several plant pathogens. Pythium sp. was isolated from infected tomato seedlings grown in Jordan Valley (Jordan) and the species was identified as Pythium ultimum using morphological and molecular methods. The fungicidal activity of garlic extract with different concentrations in controlling the growth of the isolated Pythium sp. was determined in vitro. The control activity was highly dependent on Garlic extract concentration. For instance, undiluted garlic extract showed the highest control activity with no growth as compared to the biotic control without the extract whereas diluted garlic extracts 10 and 5% reduced the fungal growth to 15.5 and 41%, respectively. The results of this study show that garlic extract could successfully control Pythium ultimum on tomato seedlings and is considered as an environmentally friendly product.
  Mahmoud AL-Khatib , Mohammad Brake , Muien Qaryouti , Khalaf Alhussaen and Hussein Migdadi
  This study was conducted under green house conditions during summer growing seasons 2010 and 2011, to evaluate the response of 21 Jordanian tomato land races (accessions) against the vascular wilt fungus Fusarium oxysporum f.sp. lycopersici. Accessions were provided by the National Center for Agricultural Research and Extension (NCARE). Inoculation with the fungus was carried out by using the root dip method. Parameters considered in this study were discoloration, yellowing and fresh weight. Both discoloration and yellowing were measured, recorded according to 1-5 scale and their results ranged from 1-3.5, while fresh weight ranged from 33.1-76.5 g for treatments compared with 41.0-98.8 g for controls. Nine out of 21 studied tomato accessions were significantly different from other accessions and appeared to be resistant to the fungus under experimental conditions according to the 1-5 scale. Most of the resistant accessions were from the slow growing lines, while most of the fast growing accessions were susceptible. The study concluded that resistant accessions are promising ones to be used as root stocks for cultivated tomato varieties.
  Mahmoud Al-Khatib
  Corky root rot symptoms caused by Pyrenochaeta lycopersici were observed on roots and stem bases of tomato plants under plastic houses in Jordan. Symptoms included chlorosis of foliage, stunting, root necrosis and poor fruit setting. The isolated fungus from diseased tomato plants formed a gray to dark green mycelium on PDA media with hyaline, uni-cellular cylindrical conidia. The main stem of diseased plants appeared to have cracked lesions along the length of the root with corky appearance. Based on the disease symptoms and morphological characteristics of the isolated fungus and pathogenicity test, Pyrenochaeta lycopersici was identified as the causal agent of the disease. This study seems to be the first study of corky root rot of tomato caused by Pyrenochaeta lycopersici in Jordan.
  Mahmoud Al-Khatib
  Several olive nurseries in Jordan were surveyed for basal and root rot fungi in olive cuttings during the rooting stage in Summer and Autumn 2011. Causal agents were isolated from symptomatic olive cuttings on PDA and identified according to specific keys. The most frequently isolated fungi were Pythium aphanidermatum followed by Fusarium solani, Rhizoctonia solani and Verticllium dahlia. Pathogenicity tests showed variation in the disease incidence caused by the isolated fungi on olive cuttings from different olive varieties. The highest disease incidence was caused by the fungus P. aphanidermatum on raseei olive variety (47%) were on other olive varieties, incidence ranged between 21 and 26%. The disease incidence caused by each of the other isolated fungi ranged from 11-15% on the different tested olive varieties. Var., raseei was the most affected by both P. aphanidermatum (47%) and composite sample (68%). Analysis of variance showed significant effects of nabali olive variety on disease incidence for the different fungal isolates.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility