Winter Hardiness, Frost Resistance and Vernalization Requirement of European Winter Oilseed Rape (Brassica napus var. oleifera) Cultivars within the Last 20 Years
1999 ◽
Vol 183
(4)
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pp. 243-253
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1989 ◽
Vol 77
(1)
◽
pp. 135-141
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