辽宁中北部地区玉米杂交种高产稳产及适应性分析

采用高稳系数(HSCi)法和适应性参数(ai)法,结合变异系数法、产量平均数及回归系数(bi)法,对2005年辽宁省中北部地区玉米品种布局试验的11个品种进行了高产稳产性及适应性综合分析。通过高稳系数法分析得出,辽单127号、东单60号、铁单18号、丹玉39号(CK)、沈玉17号的高稳系数值较高,通过产量平均数与适应性参数联合分析法得出,辽单127号、东单60号、铁单18号的产量较高且适应性参数较小,通过产量平均数与回归系数联合分析法得出,辽单127号、沈玉17号、东单60号、丹玉39号的产量较高且回归系数较小。辽单127号和东单60号高产、稳产且适应性好,具有较高的增产潜力,可在试验地及周边地区大面积推广。

Analysis of High Yield Stability and Adaptability in Maize Hybrids in Central and Northern Region in Liaoning Province

In order to promote our province comprehensively the corn yield,the full display has nurtured the improved maize varieties yield potential,uses the variety reasonably,causes maize variety arrangement reasonable.Using the method that is high stability coefficient,adaptability parameter,coefficient of variation,average of yield and coefficient of regression judged productivity,stability and adaptability of 11 maize varieties in Liaoning Province middle and northern regions Maize Arrangement Trail in 2005.Through high stability coefficient analysis,Liaodan 127,Dongdan 60,Tiedan 18,Danyu 39(CK),Shenyu 17 high stability coefficient value higher,obtains through the output mean value and the adaptability parameter union analytic method,Liaodan 127,Dongdan 60,Tiedan 18 output higher also stability parameter smaller,obtains through the output mean value and the regression doefficient union analytic method,the Liaodan 127, the Shenyu 17,Dongdan 60,the Danyu 39 output higher also the regression doefficient is smaller.Liaodan 127 with the Dongdan 60 high production,the stable production and the adaptability are good,they have the higher production increase potential,may in the experimentand the peripheral locality big area promotion.