摘要
从Ｈ１花药单倍体试管苗基部，取尚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结实株系。从田间Ｒ２的观察中发现，Ｒ１的４株后代中有１株４个穗繁衍的８６个单株发生了变异，Ｒ２的株系变异率为２５％。经过这株变异的Ｒ２、Ｒ３的株高连续观察发现：株高变异范围均很大，并有超亲现象，Ｒ２的变异大于Ｒ３；穗系间和穗系内的变异均极显著，穗系间变异大于穗系内变异；Ｒ３有８．１４％的株系已稳定；Ｒ２和Ｒ３的株高呈显著正相关。
Somaclones were developed from embryonic calli in the bases of plantlets of anther haploid (coded 90--2431 ). Four hills of RI set seeds. Field investigations of R2 indicated that one out of four hills of R1 produced 86 individual plants in which variations took place. Variation frequency of the R2 lines were 25 percent. The observations of the plant height for R2 and R3 demonstrated that: (1)plant height for both R2 and R3 varied in a large extent and showed a trend of transgression. Variation of R2 were greater than that of R3; (2)variations of inter-ear lines were greater than that of intra-ear lines,both variations were outstanding; (3)8. 14 percent of the R3 lines were stable; (4)plant height between R2 and R3 were positive correlated.
出处
《华北农学报》
CSCD
北大核心
1996年第1期11-14,共4页
Acta Agriculturae Boreali-Sinica
