育种界自六十年代起培育矮秆品种,在我国以及美、日、菲、墨均获得成就,取得在多肥条件下高产的效果。随着开展株型选育,提出了“理想型”(ideotype)的概念,即矮秆多蘖、茎直立、叶片细小、厚而浓绿、上举不下垂,以期在群体生长时对透光有利并受光均匀,以期改善光合作用条件 Breeding community since the fifties cultivated dwarf varieties, in our country and the United States, Japan, Philippines, Mexico have achieved success, achieved under the conditions of high yield of fertilizer effect. With the development of plant type, the concept of “ideotype” has been proposed, ie, dwarf and tiller, stems erect, small leaves, thick and dark green, Advantageous and light uniform, with a view to improve photosynthesis conditions