Received: 27-04-2020 / Accepted: 20-07-2020
The field experiment was conducted to evaluate the growth, yield and quality of 10 grass varieties including one Ruzi grass variety, two Guinea grass varieties (TD58 and Common), three sweet sorghum varieties (Honey Jumbo, and BMR), and four Elephant grass varieties (Bac Chong Cao, King Grass, VA06, and Co Voi Thuan) at the different harvesting times. The obtained results indicated that four Elephant grass varieties showed the highest freshmass, followed by sorghum varieties and Ruzi grass;whereas,the two Guinea grasses produced the lowest ones. The Elephant grass and Guinea grass maintained fresh mass yield at the different cutting times which is better than that of sorghum and ruzi grass. After the cutting times, plant height and shoot diameter of the grasses decreased;whereas,the number of tillers and green leaves/plant ratio increased. VA06 (Varisme 06), an elephant grass variety,had a high protein content and the highest green yield and mass in all grasses.