Photoperiod sensitivity was the major obstacle of using tropical and sub - tropical germplasm in temperate zone.

光周期敏感性是热带、亚热带玉米种质在温带地区应用的主要障碍.

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But the photoperiod sensitivity of the tropical and subtropical maize blocked this process.

针对热带亚热带玉米种质这些特点,诱变可以发挥重要的作用.

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