论文部分内容阅读
近年来部分麦区节节麦危害日益严重,小麦生产上应加以重视。节节麦是越年生或一年生禾本科杂草,幼苗暗绿色,基部淡红色。成株秆丛生,高40~80厘米。茎直立或基部弯曲斜生。叶鞘紧抱茎,较节间短,平滑无毛,边缘具纤毛;叶舌较短,长0.5~1毫米,叶片长12~18厘米,宽4~6毫米,叶表面疏生柔毛,叶面微粗糙。穗状花序圆柱形,长约10~15厘米,含8~13个小穗,紧贴于穗轴的节间,成熟时逐节脱落;小穗圆柱形,长约1厘米,含
In recent years, some barley wheat Jiejie increasingly serious harm, wheat production should pay attention. Festival of wheat is perennial or annual grass weeds, seedlings dark green, base pink. Adult stalks clustered, 40-80 cm high. Stem erect or base curved oblique. Leaves sheath tightly to hold stem, shorter than internodes, smooth glabrous, margin ciliate; ligule short, 0.5-1 mm long, leaves 12 to 18 cm long, 4 to 6 mm wide, leaf surface sparsely pilose, leaves Micro-rough surface. Spikes cylindrical, about 10 to 15 cm, with 8 to 13 spikelets, close to the rachis internodes, gradually cut off by section; spikelet cylindrical, about 1 cm in length, with