Is anyone familiar with Cheng’s Index to differentiate indica type rice from japonica? I have read some publications but they don’t tell a lot. Where can I find a detailed protocol for the measurements necessary and computation?
You can find it here. A statistical evaluation of the classification of rice cultivars into hsien and keng subspecies...http://www.shigen.nig.ac.jp/rice/rgn/vol2/v2II4.html