近年来的气候异常,对种子繁育各方面都有不利影响,特别是对于北方丘陵地区的玉米制种来说,更增加了制种难度;如果不加以重视就会造成不可挽回的损失,只要针对性采取预防措施,就会避免不利因素的危害。 In recent years, the anomalous climate has adversely affected all aspects of seed breeding. In particular, it is more difficult for seed production in maize in the northern hilly region. If it is not taken seriously, it will cause irreparable damage. Taking precautionary measures will avoid the harm of unfavorable factors.