Which of the following crops cannot be easily improved by cross-breeding? by Sunday | Jul 9 | Agricultural Science WAEC | 0 comments A. groundnut B. cowpea C. oil palm D. maize E. yam Correct Answer: Option E – yam Users Also Read These:In crop rotation, deep-rooted crops should follow…The following crops are fiber crops except?Which of the following determinants of supply cannot…Which of the following methods of plant propagation…The ways by which a pasture can be improved include…