Selecting Association by Using Crossbreeding in Linyi Institute of Agricultural Sciences, Shandong, Linyi, After Many Years the Genealogy Chooses, Succeeded Rearing the Super High Production New Winter Wheat Variety—Linmai No.2, Expressing Outstanding after Shandong Series Beforehand Tests, District Tests and Factory Tests, Expressing Stable Yields, High Yields and Disease-resistant in the Great Area Popularization Process, Have the Wide Application Foreground.