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Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2015 → IMPROVING TEFF GRASS : A FORAGE FODDER & HIGHLY NUTRITIOUS, LOW-GLUTEN GRAIN CROP

United States Department of Agriculture (USDA) 2015

IMPROVING TEFF GRASS : A FORAGE FODDER & HIGHLY NUTRITIOUS, LOW-GLUTEN GRAIN CROP

FORAGE FODDER

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : IMPROVING TEFF GRASS : A FORAGE FODDER & HIGHLY NUTRITIOUS, LOW-GLUTEN GRAIN CROP

Identification : NEV00386

Pays : Etats Unis

Durée : Jul 1, 2015 à Jun 30, 2020

Domaine : tef ; water-deficit stress ; drought tolerance ; lodging resistance ; drylands agriculture

Partenaire : UNIVERSITY OF NEVADA RENO,NV 89557

Objectifs
Tef (or Teff) is a warm season, C4-photosynthesis grass that is gaining popularity in the U.S. as a high-quality summer forage, fodder, and gluten-free grain. The long-term goals of the proposed integrated research and extension project are to improve the relative drought tolerance and lodging resistance of tef (Eragrostis ssp., Poaceae). The primary goals of the proposed research are to : 1) Determine the relative drought and dehydration tolerance of three Eragrostis species that differ in their ability to withstand water-deficit stress. 2) Evaluate the relative biomass productivity and seed yield of three Eragrostis species that differ in drought-stress tolerance under three different field irrigation regimes in Nevada. Field studies will also analyze the potential of each species for use as forage evaluated under different grazing frequencies and for productivity and nutritive value when grown as a hay crop. The secondary goal is develop more lodging-resistant tef. Lodging is a common problem in tef ; therefore, two additional aims will be to : 3) Generate and evaluate mutant collections for plants with reduced stature and thus, reduced susceptibility to lodging, and greater harvest indices. 4) Develop elite E. tef varieties with reduced lodging and greater seed yields (harvest indices) by introducing an induced mutation to create a dominant-negative gibberellin response modulator. Once developed, these improved cultivars of tef will be evaluated under field conditions in Nevada. The expected outcome of this project is to develop tef germplasm with improved drought tolerance and lodging resistance to improve forage, fodder, and grain yield stability in Nevada, the arid western U.S, and other semi-arid growing areas around the world

Présentation : USDA

Page publiée le 30 septembre 2015, mise à jour le 12 octobre 2017