Innovation and Application of Maize Inbred Line Hexi 640 with Multi-resistant and High Combining Ability
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摘要: 为促进黑龙江省中早熟区域多抗高配合力玉米品种选育,本文主要介绍了合系640的材料来源、选育经过、特征特性、应用情况及选育体会。合系640与合系628杂交组配选育成了玉米杂交种合玉25。合玉25在黑龙江省大面积推广应用,累计推广面积超过100万hm2,具有早熟、抗病、高产等特点,适宜在黑龙江省第三积温带种植,社会经济效益显著,具有广泛的应用前景。Abstract: In order to promote the breeding of maize varieties with multi-resistance and high combining ability in the middle and early maturing region of Heilongjiang Province, this paper mainly introduces the material source, breeding process, characteristics, application and breeding experience of Hexi 640.Maize hybrid Heyu 25 was bred by cross combination of Hexi 640 and Hexi 628.Heyu 25 had been popularized and applied in a large area in Heilongjiang Province, with a cumulative promotion area of more than 1 million ha.It had the characteristics of early maturity, disease resistance and high yield.It is suitable for planting in the third accumulated temperature zone of Heilongjiang Province.It has remarkable social and economic benefits and has a wide application prospect.
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Keywords:
- narrow genes population /
- multi-resistance /
- high combining ability /
- maize inbred line /
- Hexi 640
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