| 冬小麦花药愈伤组织无性系穗数变异的研究 |
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| 引用本文： | 王培,陈玉蓉,王峰,何萍, 张冬梅,孙咏梅. 冬小麦花药愈伤组织无性系穗数变异的研究[J]. 河北科技师范学院学报, 1994, 0(3) |
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| 作者姓名： | 王培 陈玉蓉 王峰 何萍 张冬梅 孙咏梅 |
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| 作者单位： | 河北省农林科学院粮油作物研究所，河北农业技术师范学院农学系 |
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| 摘 要： | 从Ｈ１代花药单倍体试管苗（９０－２４３１）基部，取未分化绿苗的胚性愈伤组织建立的体细胞无性系，获得４丛Ｒ１代结实株系。从田间Ｒ２代的观察中发现，Ｒ１代的４株后代中繁衍的８６个单株发生了变异，经过这株变异的Ｒ２Ｒ３代的穗数观察发现：（１）Ｒ２和Ｒ３代单株穗数变异范围大，穗数都明显增多，并且有超亲现象；（２）Ｒ２和Ｒ３代的单株穗数呈显著正相关；（３）穗系间的变异大于穗系内的变异；（４）Ｒ３代有２９％的穗系已稳定。
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| 关 键 词： | 冬小麦，花药愈伤组织，无性系穗数变异 |
STUDY ON VARIATIONS OF EAR NUMBER FOR R2 AND R3 GENERATIONS FROM ANTHER CALLIIN WINTER WHEAT |
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| WangPei ,ChenYurong ,WangFeng ,HePing. STUDY ON VARIATIONS OF EAR NUMBER FOR R2 AND R3 GENERATIONS FROM ANTHER CALLIIN WINTER WHEAT[J]. Journal of Hebei Normal University of Science & Technology, 1994, 0(3) |
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| Authors: | WangPei ChenYurong WangFeng HePing |
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| Abstract: | Somaclones were developed from embryonic calli in bases of plant of anther haploid(coded 90-2431).Four hills of Rl set seeds. Field investions of R2 indicated one out of four hills of R1 produced 86 individual plant in which variations took place. The observa-tions of the ear numbers for R2 and R3 generations demonstrated that:(l)Ears per plant for both R2 and R3 generations varied in large extent and showed a trend of transgres-sion;(2)Ears per plant between R2 and R3 generations were positive correlated;(3)Vari-ations of inter-ear lines were greater than those of intra-ear lines;(4)Twenty-nine per-cent of the R3 lines were.stable, |
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| Keywords: | Winter wheat Anther calli Somaclone Number variation |
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