杂交水稻
雜交水稻
잡교수도
HYBRID RICE
2001年
2期
50-53
,共4页
李阳生%彭凤英%李达模%李振声
李暘生%彭鳳英%李達模%李振聲
리양생%팽봉영%리체모%리진성
杂交水稻%亲本%苗期%淹涝耐性
雜交水稻%親本%苗期%淹澇耐性
잡교수도%친본%묘기%엄로내성
摘 要：经对生产上主栽的野败型三系杂交组合及其亲本苗期耐淹涝能力的比较研究，杂交稻的耐淹涝能力的平均优势明显，且以显性效应为主。恢复系效应大于不育系；杂交稻淹涝后生存率与恢复系呈极显著正相关，与不育系呈显著正相关。杂交稻的耐淹涝表现以偏父型和中间型为主(80%以上)，偏母型比例低。恢复系、不育系耐淹涝能力强的，配出的杂交稻耐淹涝能力更强。
摘 要：經對生產上主栽的野敗型三繫雜交組閤及其親本苗期耐淹澇能力的比較研究，雜交稻的耐淹澇能力的平均優勢明顯，且以顯性效應為主。恢複繫效應大于不育繫；雜交稻淹澇後生存率與恢複繫呈極顯著正相關，與不育繫呈顯著正相關。雜交稻的耐淹澇錶現以偏父型和中間型為主(80%以上)，偏母型比例低。恢複繫、不育繫耐淹澇能力彊的，配齣的雜交稻耐淹澇能力更彊。
적 요：경대생산상주재적야패형삼계잡교조합급기친본묘기내엄로능력적비교연구，잡교도적내엄로능력적평균우세명현，차이현성효응위주。회복계효응대우불육계；잡교도엄로후생존솔여회복계정겁현저정상관，여불육계정현저정상관。잡교도적내엄로표현이편부형화중간형위주(80%이상)，편모형비례저。회복계、불육계내엄로능력강적，배출적잡교도내엄로능력경강。
Hybrids and their parents were compared for submergence-tolerant ability at seedling stage. The results showed that hybrids had significant mid-parent heterosis in submergence tolerance and the tolerance was mainly controlled by dominance effect. The effect of restorer lines was greater than that of CMS lines. The survival rate of hybrids was very significantly correlated with that of restorer lines, and significantly correlated with that of CMS lines. Most of the hybrids (more than 80%) had their submergence tolerance inclined to their male parents or between male and female parents. The hybrids developed from both tolerant parents showed a stronger submergence tolerance.
