Use of IR36ms for screening wide compatibility variety（WCV）

IR36 has been used as an indica tester in screening WCVs, However, artificial emasculation is not only a time consuming work, but also may produce false hybrids due to incomplete emasculation, and may injure stigmata and ovary which will result in a decrease of spikelet fertility. We studied the possiility of using the male sterile ( ms ) line IR36ms instead of IR36 as a tester to remove such limitation.