CO468, CO469, CO470, CO471, CO472 and CO473 are the first corn (Zea mays L.) inbred lines released from the northern corn leaf blight [Exserohilum turcicum (Pass.) K.J. Leonard & E.G. Suggs; syn. = Helminthosporium turcicum Pass.] resistance breeding program of Agriculture and Agri-Food Canada. All six inbreds possess intermediate to very high levels of resistance, which is expressed in hybrids when these inbreds are combined with susceptible test lines. Expression is even higher when some of these lines are combined with each other. Acceptable grain yields and moistures are also achieved in several hybrid testcrosses. All six inbreds also possess intermediate to high levels of resistance to eyespot, common rust, Goss’s bacterial wilt, and grey leaf spot.
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corn
Cultivar description
maize
northern corn leaf blight
Zea mays L.
