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001-es BibID:	BIBFORM121278
Első szerző:	Elabaied, Esraa M.
Cím:	Influence of bacteria on Orobanchecrenata seed bank size, incidence and Viciafaba L. performance / Esraa M Elabaied, Ahmed M E Rugheim, Mohammed M Hassan, Magdoline M Ahmed, Mahdi A Yahia, Rania A Abakeer, Rashida M A Abusin, Awad G Osman, Migdam E Abdelgani, Abdel-Gabar E Babiker
Dátum:	2017
Megjegyzések:	BACKGROUND: Orobanche crenata is a holoparasitic weed that seriously attacks legumes and depend entirely on their hosts for all nutritional requirements. A wide variety of approaches physical, cultural, chemical and biological have been explored against root parasite. Current means for controlling parasitic weeds are focusing on reducing soil seed bank and inhibiting early developmental stages. OBJECTIVE: Laboratory and greenhouse experiments were conducted to investigate the effects of bacterial strains and isolates cultures and filtrates, on early developmental stages of Orobanche crenata and to explore their potential in O. crenata control. RESULTS: Results of in vitro experiments revealed that germination of O. crenata significantly decreased after inoculation with bacterial cultures or filtrates. Bacterial isolates (ISO43 and ISO44) and strains of Bacillus circulans, B. megatherium var. phosphaticum (BMP) and the combination of BMP plus Rhizobium leguminosarum bv. viceae (TAL1399) significantly reduced germination as compared to other microbes and controls. With respect to the effects of bacterial cultures or filtrates on haustorium initiation, results displayed that B. circulans, BMP, BMP+R. leguminosarum bv. viceae (USDA 2478) and ISO44 significantly suppressed O. crenata haustoria factor as compared to the corresponding control. In the in vivo experiment, irrespective of faba bean cultivars and bacterial inoculation, O. crenata emergence progressively increased with seed bank size. Faba been inoculated with bacterial combinations of BMP+TAL1399 and BMP+USDA2478 significantly reduced O. crenata emergence and dry weight. In general, Basabeer cultivar invariably displayed better growth than Selaim. Faba bean height and dry weight invariably decreased with increasing seed bank size. The increase in faba bean growth parameters is consistent with the observed delay and decrease in O. crenata emergence in response to treatments. CONCLUSION: Improving soil fertility by using beneficial microorganisms appeared to decrease O. crenata infestation and its suppressiveness effects on host growth. Use of potential bacterial strains and isolates could be incorporated into existing Orobanche crenata management practices.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Broomrape Faba bean cultivars Soil borne bacteria Suppression
Megjelenés:	American-Eurasian Journal of Sustainable Agriculture. - 11 (2017), p. 30-39. -
További szerzők:	Rugheim, Ahmed M. E. Hassan, Mohammed Mahgoub Ahmed, Osman Magdoline Mustafa (1984-) Yahia, Mahdi A. Abakeer, Rania Alrasheed Abusin, Rashida M. A. Osman, Awad Galal Abdelgani, Migdam Elsheikh Babiker, Abdelgabar Eltayeb
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