以自南非引進的尼羅草(Acroceras macrum Stapf)種原AC14、AC15、AC20、AC22、AC26、AC29、AC30、AC33、AC36及AC39等10個品系當成親本,經自然授粉及單株觀察,選出11個較優良後裔進行各級產量試驗及品質分析。乾物產量以後裔品系A11之5.03公噸/公頃/次為最高,其次為後裔品系A10的4.91公噸/公頃/次,皆顯著地高於對照組的尼羅草臺畜草一號(NL cv. TS1)之4.27公噸/公頃/次。A10的莖徑2.04毫米,顯著地小於其他品系,但葉長18.1公分、葉寬0.75公分及葉莖比0.67顯著地大於對照組,而且每平方公尺的密度以A10的1,035支最多。A10的粗蛋白質含量介於9.2-10.7%之間,而酸洗纖維及中洗纖維平均分別為36.4%及64.5%。A10具有高產品質佳的特性,且在各地區皆維持良好的適應性。
There are 10 lines of Acroceras macrum Stapf genetic resources, AC14, AC15, AC20, AC22, AC26, AC29, AC30, AC33, AC36 and AC39 to be introduced from Africa as parents. Through natural self-pollination and individual observation, 11 breeding lines with good characteristic are selected to be investigated in preliminary yield trials, advanced yield trials and quality analysis.The dry matter yield 5.30 ton/ha/cut of breeding line A11 is the highest and then 4.91 ton/ha/cut of A10 is the next. The dry forage yields of both A11 and A10 are much higher than 4.27 ton/ha/cut of control group "NL cv. TS1." Although the stem diameter 2.04 mm of A10 is smaller than other lines, its leaf length 18.1 cm, leaf width 0.75 cm and leaf/ stem ratio 0.67 are higher than the control groups and also the leaf number 1,035/m^2 of A10 is the most. The content of crude protein (CP) of A10 is about 9.2-10.7%, average acid detergent fiber (ADF) 36.4% and neutral detergent fiber (NDF) 64.5%. A10 is highly productive and has good quality with great adaptability in all regions.