FORAGE YIELD AND COMPOSITION OF Avena strigosa Schreb AT DIFFERENT HARVESTING FREQUENCIES AND INTENSITIES

Harvesting frequency and intensity are management criteria in forage plants their choices affect herbage yield quality. The objectives of the study were to evaluate yields morphological components chemical composition (crude protein, neutral detergent fiber acid fiber) Saia oats (Avena strigosa Schreb) at three harvest frequencies (40, 50 60 cm sward height) intensities (8, 14 20 residual foliage). design was completely randomized with a factorial arrangement (3 × 3) treatments four replications. factors height (AD) (IC). experimental units 36 plots 12 m2. Forage increased linearly (p = 0.007) increase (35 kg DM cm-1, R2 0.91). Leaf blade decreased (-33 0.99, p 0.001) pseudo stem plus (46 0.98, increasing height. Harvest did not foliage > 0.05); however, leaf higher high (8 herbage, < 0.05). Crude protein (CP) showed linear decrease as (-0.22 % 0.99), fibre (NDF) (51.2 %) 60-14 lower (41.9 40-8. proportion blades NDF content harvested 40 height, combination moderate height).