2011•Shanxi nongye kexueRequires access
Breeding and Application of New Extra-early Maize Hybrid Jindan 69
Liang Gaimei
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Abstract
The new maize hybrid Jindan 69 was combined of two inbred lines D993 and Tai126-1.The inbred line D993 was used as the female parent and Tai126-1 male.Jindan 69 is an extra-early maturing hybrid.It needs accumulative temperature 2 300 ℃(≥10 ℃) to mature.The hybrid showed high yield at various experiment plots in various areas in 2008-2009.The result showed that it had earliness,very high ability of disease resistance,lodging resistance and high quality.The adaptive planting areas of Jindan 69 was the extra-early areas of Shanxi province where corn sowing in the spring.The plant populations were 60 000～67 500 plant/hm2.The male and female were sowed in the same period when seed was propagated.