Sentence:  Soon after harvest, new shoots emerge from axillary buds on the stubble and give rise to the <WSD>ratoon</WSD> crop. Initially the young shoots are dependent upon the roots of the previous crop (stool roots) but these are replaced by new shoot roots .... 
Meaning of the word marked with <WSD> tags:  A shoot sprouting from the root of a cropped plant, especially sugar cane.