吉林农业大学学报
吉林農業大學學報
길임농업대학학보
JOURNAL OF JILIN AGRICUL TURAL UNIVERSITY
2014年
1期
23-29
,共7页
杨巍%李玲%姜龙%慈佳宾%杨伟光
楊巍%李玲%薑龍%慈佳賓%楊偉光
양외%리령%강룡%자가빈%양위광
玉米%DH系%密度%杂种优势%配合力
玉米%DH繫%密度%雜種優勢%配閤力
옥미%DH계%밀도%잡충우세%배합력
maize%DH line%density%heterosis%combining ability
采用NCⅡ设计,对玉米DH系在6.0,7.5,9.0万株/hm2密度下单株产量的杂种优势及配合力进行了研究。杂种优势分析结果表明:本试验选用的DH系单株产量杂种优势普遍存在,在3种密度下有4个杂交组合单株产量的平均杂种优势均高于对照“先玉335”和“郑单958”,分别是杂交组合B1269×J28(3种密度下分别为202.4%、159.7%、94.1%)、B191×J9(178.1%、140.1%、87.6%)、GJ4×J11(174.4%、138.9%、93.3%)、PH6WC ×J28(172.4%、142.5%、88.2%),它们的杂种优势模式均为Reid ×Lancaster。配合力效应分析结果表明:在3种密度下 DH系 B191(1.93,1.45,2.12)、J28(4.71,5.03,6.82)、J11(2.08,2.40,1.32)、J9(2.21,1.60,2.38)单株产量的一般配合力(GCA)效应均高于2个骨干系GJ4和PH6WC,尤其以B191最高;在3种密度下24个杂交组合中杂交组合B191×J9单株产量表现比较稳定,特殊配合力(SCA)效应均表现很高,分别为8.02,10.26,13.63,其总配合力(TCA)效应亦表现出最明显的优势,分别为12.16,13.31,18.13。
採用NCⅡ設計,對玉米DH繫在6.0,7.5,9.0萬株/hm2密度下單株產量的雜種優勢及配閤力進行瞭研究。雜種優勢分析結果錶明:本試驗選用的DH繫單株產量雜種優勢普遍存在,在3種密度下有4箇雜交組閤單株產量的平均雜種優勢均高于對照“先玉335”和“鄭單958”,分彆是雜交組閤B1269×J28(3種密度下分彆為202.4%、159.7%、94.1%)、B191×J9(178.1%、140.1%、87.6%)、GJ4×J11(174.4%、138.9%、93.3%)、PH6WC ×J28(172.4%、142.5%、88.2%),它們的雜種優勢模式均為Reid ×Lancaster。配閤力效應分析結果錶明:在3種密度下 DH繫 B191(1.93,1.45,2.12)、J28(4.71,5.03,6.82)、J11(2.08,2.40,1.32)、J9(2.21,1.60,2.38)單株產量的一般配閤力(GCA)效應均高于2箇骨榦繫GJ4和PH6WC,尤其以B191最高;在3種密度下24箇雜交組閤中雜交組閤B191×J9單株產量錶現比較穩定,特殊配閤力(SCA)效應均錶現很高,分彆為8.02,10.26,13.63,其總配閤力(TCA)效應亦錶現齣最明顯的優勢,分彆為12.16,13.31,18.13。
채용NCⅡ설계,대옥미DH계재6.0,7.5,9.0만주/hm2밀도하단주산량적잡충우세급배합력진행료연구。잡충우세분석결과표명:본시험선용적DH계단주산량잡충우세보편존재,재3충밀도하유4개잡교조합단주산량적평균잡충우세균고우대조“선옥335”화“정단958”,분별시잡교조합B1269×J28(3충밀도하분별위202.4%、159.7%、94.1%)、B191×J9(178.1%、140.1%、87.6%)、GJ4×J11(174.4%、138.9%、93.3%)、PH6WC ×J28(172.4%、142.5%、88.2%),타문적잡충우세모식균위Reid ×Lancaster。배합력효응분석결과표명:재3충밀도하 DH계 B191(1.93,1.45,2.12)、J28(4.71,5.03,6.82)、J11(2.08,2.40,1.32)、J9(2.21,1.60,2.38)단주산량적일반배합력(GCA)효응균고우2개골간계GJ4화PH6WC,우기이B191최고;재3충밀도하24개잡교조합중잡교조합B191×J9단주산량표현비교은정,특수배합력(SCA)효응균표현흔고,분별위8.02,10.26,13.63,기총배합력(TCA)효응역표현출최명현적우세,분별위12.16,13.31,18.13。
Heterosis and combining ability of per plant yield of maize DH lines in 60 000/hm2,75 000/hm2 and 90 000/hm2density conditions were studied by NCⅡ mating design .Heterosis analysis results showed heterosis of DH lines selected in this test is prevalent,heterosis of per plant yield of four hy-bridized combinations in three density conditions is higher than that of xianyu 335 and zhengdan 958, they are B1 269 ×J28(Heterosis of per plant yield in three density conditions are 202.4,1 59.7,94.1 ), B1 91 ×J9(1 78.1 ,1 40.1 ,87.6),GJ4 ×J1 1 (1 74.4,1 38.9,93.3)and PH6WC ×J28(1 72.4,1 42.5, 88.2),and their heterotic pattern is Reid ×Lancaster .Combining ability analysis results showed GCA of per plant yield of DH lines 1 91 (1.93,1.45,2.1 2),J28(4.71 ,5.03,6.82),J1 1 (2.08,2.40, 1.32),J9(2.21 ,1.60,2.38)in three density conditions is higher than that of GJ4 and PH6WC,and GCA of per plant yield for B1 91 is the highest;Among 24 hybrid combinations in three density condi-tions,B1 91 ×J9 has a stable per plant yield performance,its SCA is high,8.02,1 0.26 and 1 3.63 re-spectively,and its TCA predominance is most obvious,1 2.1 6,1 3.31 and 1 8.1 3 respectively .