Triticum araraticum Triticum araraticum Triticum araraticum (Araratian wild emmer or Armenian wild emmer) is a wild tetraploid species of wheat. "T. araraticum" is one of the least studied wheat species in the world. The "T. araraticum" species appears to have arisen from the natural hybridization of T. boeoticum and Aegilops speltoides. "T. araraticum" is similar to the domestic T. timopheevii in several ways including physical appearance, cytoplasm type and DNA content. The relationship has led some taxonomists to classify "T. araraticum" as a subspecies of "T. timopheevii". In July 1988 different lines of "T. araraticum" were studied using the C-banding method revealing
Cover crop recycle soil nitrogen already present. The catch crops take up surplus nitrogen remaining from fertilization of the previous crop, preventing it from being lost through leaching (Morgan et al. 1942), or gaseous denitrification or volatilization (Thorup-Kristensen et al. 2003). Catch crops are typically fast-growing annual cereal species adapted to scavenge available nitrogen efficiently from the soil (Ditsch and Alley 1991). The nitrogen tied up in catch crop biomass is released back into the soil once the catch crop is incorporated as a green manure or otherwise begins to decompose. An example of green manure use comes from Nigeria, where the