backcross improving method
backcross improving method
回交改进法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The method using in vitro irradiation seems to be more effective than conventional irradiation, tissue culture or backcross for improving a few characters in a variety.
因此，对于品种个别性状的改造，离体辐照可能比其它方法更有效。
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