01727nab a2200241 a 4500 AR-ReUNN 20260702003325.0 260630s2007 ag |||||||||||||||||spa Cabello, Marta Noemí 10087 Chidichimo, Hugo 155234 Schalamuk, S. 154107 Variaciones en la composición de especies de Glomeromycota (Fungi) en un cultivo de trigo bajo distintos sistemas de labranza / S. Schalamuk, H. Chidichimo, M. Cabello 2007 9 páginas Variations in Glomeromycota species composition in a wheat crop under different tillage systems. Agricultural practices affect the dynamics and biodiversity of Glomeromycota. Field experiments were carried out in order to assess the variations of the arbuscular mycorrhizal fungi community in a wheat crop, which was evaluated at different phenological stages under different tillage systems (conventional tillage and no-tillage) and nitrogen fertilization during 2 years. We found 24 species, which is considered a high number in contrast to other studies in agroecosystems. The species belonging to the family Glomeraceae showed a higher dominancy, especially in no-tillage. The lack of tillage in this system did not promote a higher specific richness or evenness in the distribution of Glomeromycota, as other researchers have pointed out, but in contrary the opposite tendency was found. Glomeromycota 155235 Siembra Directa 22950 Estados Fenologicos de Trigo 155236 Boletín de la Sociedad Argentina de Botánica 0373-580X v. 42 n. 1-2 (2007) 238707 ART (IBONE)40559 239575 239575 239575 AR-ReUNN spa AR-ReUNN aacr2