Tall fescue (Festuca arundinacea Schreb.) is an important cool-season perennial grass species used as forage and turf, and in conservation plantings. There are three morphotypes in hexaploid tall fescue: Continental, Mediterranean and Rhizomatous. This study was conducted to develop morphotype-specific molecular markers to distinguish Continental and Mediterranean tall fescues, and establish th...

Invasive species may owe some of their success in competing and co-existing with native species to microbial symbioses they are capable of forming. Tall fescue is a cool-season, non-native, invasive grass capable of co-existing with native warm-season grasses in North American grasslands that frequently experience fire, drought, and cold winters, conditions to which the native species should be...

Grass tetany is a nutritional disease of ruminants caused by low dietary Mg. Previous research has shown that early spring P-fertilization increases the leaf Mg concentration of tall fescue (Festuca arundinacea Schreb.) hay. However, little is known about how P-fertilization alters the mineral concentration of tall fescue under grazing. Our objective was to compare, under grazing, the Mg, K, Ca...

Human assisted plant invasions from Europe to North America have been more common than the reverse. We tested endophyte-mediated performance of tall fescue in parallel three year experiments in Europe and the USA using endophyte infected and uninfected wild and cultivated plants. Experimental plants were subjected to nutrient and water treatments. Whereas endophyte infection increased tall fesc...

abstract in order to evaluate chemical control of bermudagrass (cynodon dactylon (l.) pers.) on mixture turf: (lolium perenne 20%,poa pratensis.20%,festuca arundinacea 20% and festuca rubra commutata 40%), an experiment was conducted during 2006 in tehran, using randomized complete block design with 4 replications and 11 treatments. treatments were diclpfop methyl at 900 and 1080 g a.i. ha-1, f...

Grazing endophyte-infected tall fescue (E+) negatively impacts cattle feed intake and growth negatively (Crawford et al., 1989). However, the interaction between environmental factors and animal genetics may influence important cattle growth measurements before and after the weaning process (Phillips et al, 2001). For example, polymorphisms (mutations) in the prolactin and cytochrome P450 genes...

To address the problem of fescue toxicosis in grazing cattle, non-toxic endophytes from New Zealand have been used to infect tall fescue varieties grown in Georgia. The objectives of the present study were to determine animal performance and evaluate toxicosis in stocker steers and heifers grazing non-toxic endophyte-infected (AR542), endophyte-free (EF), or wild-type endophyte-infected (EI) Je...