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1 选育依据自20世纪60～70年代以来,在贵州玉米生产上(主要)推广应用的含适宜贵州主体杂优模式的Suwan选系与贵州地方种质或温改地选系或温带种质选系杂交的三交种有贵毕302(035 6×32 2/S37)、303(035 6×77 1/S37)、黔玉2号(黄C×S89/J51)和黔玉3号(53×93 63/T32)等;单交种
Breeding basis From the 20th century, 60 to 70 years since the Guizhou maize production (mainly) to promote the use of suitable Guizhou main heterotrophic pattern of Suwan selected lines and Guizhou local germplasm or temperature to change the germplasm or temperate germplasm series The three crossbreds of the selected lines were as follows: 302 (035 6 × 32 2 / S37), 303 (035 6 × 77 1 / S37), Guizhou Yuyu 2 (Huang C × S89 / J51) and Guizhou Yuyu 3 53 × 93 63 / T32); single cross species