世界各地蔗区通常都以蔗茎作种苗。前人研究,蔗茎(营养体)自身储藏的有效养分,是种芽萌发成苗、长出种根及至自行营养前。即幼株初期发育的主要营养来源。这种论断,亦已为科研和生产所证明。我国广大蔗区素有以梢头苗作种的栽培习惯,且对留种的梢头苗加以较严格的选择,取其健康、粗壮、芽眼饱满者作为甘蔗增产的首要一环,并有“母肥子壮”之说。但近年来由于过份强调节种增产的原因,似有被忽视的倾向。为探明不同茎径种苗 Cane fields around the world are usually cane stems for seedlings. Previous studies, sugarcane stem (nutrient body) effective storage of their own nutrients, seed germination is a seedling, grow seedling and self-nutrition before. That is, the main source of nutrients for the early development of young plants. This assertion has also been proved by scientific research and production. The majority of sugarcane areas in our country have the habit of cultivating the plants with the seedling of the head and seedling, and the more rigorous choices are made for the seedlings of the remaining seedlings. Taking the healthy, stout, full-buddies as the most important part of the sugarcane production increase, Feizi Zhuang "said. However, in recent years, it has been overlooked because of the excessive emphasis on yield growth. To identify different stem diameter seedlings