Climatic Factors, Acid Detergent Fiber, Neutral Detergent Fiber and Crude Protein Contents in Digitgrass

Climatic Factors, Acid Detergent Fiber, Neutral Detergent Fiber and Crude Protein Contents in Digitgrass

Digitgrass (Digitaria Xumifolia) was treated according to a set of programmed harvest cycles to study the impact of climatic factors on the quality of the grass. It is found that seasonal changes have greater effect on the quality of the grass than does the length of the harvest cycle. The highest correlation coefficient (0.81) between the ADF content and accumulated temperature is attained when the base temperature is set to 15.5 , while the highest correlation coefficient (0.88) between CP and is attained at a base temperature of 15.0 . The determination coefficient of regression (R² ) for ADF is reached at 0.81 when accumulated temperature and day length are introduced as factors. For NDF however, R² is lower (0.71) when the same factors are introduced. For CP, R² can reach up to 0.78 when the accumulated temperature alone is introduced as a factor.