多花黑麦草新品系产量及农艺性状研究初探

Study on Agronomic Trait and Forage Yield of New Ryegrass Strain

试验对多花黑麦草新品系的植物学性状、农艺性状、生长动态及拔节期营养物质含量进行了研究。结果表明,多花黑麦草新品系生育期为234 d,生长发育迅速,特别是冬春季生长优势明显;年产草量(DM)可达15 469kg/hm2;植株高大,叶量丰富、叶片宽大,拔节期粗蛋白含量达16.17％,表现出明显的优良牧草性状;在南方亚热带地区生长良好,是优良的多花黑麦草新品系。

The experiment was conducted to assess the traits of new strain of ryegrass (Lolium multif-lorum Lam.). The biological characteristics, agronomic performance, growth dynamic change, the content of nutrients in stem extension stage were studied. The results showed that the growing period of new strain last about 234days. The new strain of ryegrass grew faster, especially in winer. The total production was 15 469 kg/ha DM., and it showed better forage traits such as taller plant, abundant and broad leaves. The crue protein content at stem extension stage was 16.17%. It grew better in subtropic of southern China.