A Comparative Studies on the growth Characteristics and Feed Components of Sorghum × Sudangrass hybrids at Paddy Field Cultivation

This study was carried out to compare the agronomic characteristics, forage yield, and feed value of nine sorghum × sudangrass hybrids at paddy field cultivation. The nine recommended sorghum × sudangrass hybrids used in this study were P877F, Cow pow, Turbo gold, Maxi graze, Jumbo, G7, Sweet home, Honey chew BMR and Green star. Plant height, leaf number, stem diameter, and stem hardness were higher in Jumbo than other varieties (P less than 0.01). Sugar content (brix) was higher in order of P877F greater than Sweet home greater than maxi graze greater than Green star greater than Cow pow greater than G7 (P less than 0.01). Fresh (86,199kg/ha) and dry matter yield (16,206 kg/ha) of Jumbo were higher than other varieties (P less than 0.01). Crude protein was the highest in Maxi graze (6.5%), but crude fat was the highest in Honey chew BMR as 2.1% (P less than 0.01). NDF and ADF of Jumbo and G7 were higher than other varieties (P less than 0.01). TDN was higher in order of Maxi graze greater than Sweet home greater than P877F greater than Honey chew BMR greater than Green star, but no significant differences were found among the varieties. Minerals were the highest in Cow pow (15,020.5 mg/kg), and Sweet home (6,222.6 mg/kg) was the lowest as compared to other varieties (P less than 0.01). Total amino acids were higher in order of Maxi graze greater than Sweet home greater than Turbo gold greater than Honey chew BMR greater than Jumbo (P less than 0.01). Crude protein yield and crude fat yield were the highest in Turbo gold (814.6 kg/ha) and Honey chew BMR (309.8kg/ha), respectively (P less than 0.01). Mineral yield was the highest in Cow pow as 207.6 kg/ha (P less than 0.01). Amino acid yield (592.2 kg/ha) and TDN yield (10,194 kg/ha) were the highest in Sweet home. Based on the above results, sorghum × sudangrass hybrid varieties should be selected on the basis of the purpose of use. Because, each varieties showed various growth characteristics and nutrition yield (protein, fat, mineral, amino acid, TDN).