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先科338是河南先天下种业有限公司以自选系邓316为母本,以自选系邓286为父本组配而成的玉米单交种。该品种具有高产、稳产、抗逆性强、生育期适中、品质优和适应性广等特点。2009年参加河南省玉米区域试验(52 500株/hm2组),比对照浚单18增产9.7%;2010年参加河南省玉米区域试验(60 000株/hm2组),比对照郑单958增产9.1%。同年参加河南省玉米生产试验(4 000株/亩组),比对照郑单958增产10.6%。2012年4月通过河南省审定。
The first Section 338 is Henan first seed industry Co., Ltd. to select the Department of Deng 316 as the female parent, to choose a self-selected Deng 286 for the paternal maize single cross between species. The varieties with high yield, stable yield, strong resistance, moderate growth period, good quality and wide adaptability and so on. In 2009, he took part in the regional experiment of corn in Henan Province (52 500 plants / hm2) and increased the yield by 9.7% compared with that of Xun Dan 18; in 2010, he took part in the regional experiment of corn in Henan Province (60 000 plants / hm2) %. The same year to participate in Henan Province, corn production test (4 000 plants / mu group), compared with the control Zhengdan 958 yield 10.6%. In April 2012 passed the validation of Henan Province.