Contributions to the Cytology of the Genus Saccharum

VII. Saccharum spontaneum from Sikkim and Manila

抄録

1. Saccharum spontaneum from Sikkim is the first report from this area. It is found to be 2n=56 as same as Debra Dun form.
2. The ligule pattern of Sikkim wild sugarcane is grouped into three, mostly round deltoid like as Japanese forms, few of acute deltoid as Madras form, and rarely falcate form like as Roxburghii in Formosa.
3. Manila form is 2n=80 which agrees with the former reports.
4. Comparative morphology of Manila form has never been reported. The ligule pattern is round deltoid as like as Japanese forms. Hair group 56 is mostly absent which was generally seen in the Sikkim as well as Japanese forms.