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一根甘蔗,从梢头到根部,究竟那一段用来做种比较合适呢?试验结果表明,用蔗梢部蔗尖往下70厘米左右这一茎段做种,1个月就可以出苗,出苗率达98％;而用蔗茎中段做种的,要40天才能出苗,出苗率90％左右;用蔗茎基部茎段做种的,要50天出苗,出苗率85％左右。这是因为茎梢部葡萄糖和可溶性氮化物、转化酶的含量都比较高,所以出苗快、出苗齐。甘蔗每个节有1个腋芽,蔗梢部节间距离较小,所以发芽也就多。每667平方米甘蔗田留下的蔗梢,可供第2年1334平方米～2000平方术的蔗田作种。蔗梢做种可节省蔗种和合理密植。
A sugarcane, from the top to the root, after all, what kind of section is used to make a more appropriate it? The test results show that with cane tip cane down 70 cm or so to do this kind of stem section, 1 month can germination, emergence Rate of 98%; and the middle of the cane to do with seeds, to 40 days to emerge, the emergence rate of about 90%; stems with sugarcane stem species to do the kind of seedlings to 50 days, the emergence rate of about 85%. This is because the stem tip of glucose and soluble nitrogen compounds, invertase levels are relatively high, so the emergence of fast, emergence Qi. Each section of sugar cane has 1 axillary bud, cane tip internode distance smaller, so germination also more. Each 667 square meters left sugarcane cane shoots for the second year of 1334 square meters ~ 2000 square sugarcane crop for species. Cane shoots can save species and close planting density.