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中国农学通报 ›› 2007, Vol. 23 ›› Issue (6): 260-260.

所属专题: 烟草种植与生产

• 农学 农业基础科学 • 上一篇    下一篇

烤烟胞质不育杂种下部叶品质性状的优势表现

胡日生.,徐文军.,郭清泉,朱列书.,詹莜国   

  • 出版日期:2007-06-05 发布日期:2007-06-05

Heterosis for Quality Trails of Lower Leaves in Flue-cured Tobacco Ms-Hybrids

Hu Risheng., Xu Wenjun., Guo Qingquan, Zhu Lieshu.,Zhan Youguo   

  • Online:2007-06-05 Published:2007-06-05

摘要: 以自育的3个烤烟胞质不育系和4个国内推广烤烟品种为材料,配成3×4=12个杂种,研究烤烟下部叶8个品质性状的杂种优势表现。结果表明:(1)各品质性状均存在正向或负向的离中优势。总氮有25.00%组合的正向离中优势达到显著或极显著水平;相反,总氮/烟碱、总糖和氧化钾有33.33%、25.00%和8.33%组合的负向离中优势达到显著或极显著水平;烟碱、氯、总糖/烟碱、氧化钾/氯分别各有41.67%、16.67%、8.33%、8.33%组合正向离中优势和8.33%、8.33%、33.33%、8.33%负向离中优势达到显著或极显著水平。(2)总氮、烟碱、氯分别有25.00%、16.67%和8.33%组合的超高亲优势达到显著或极显著水平,其它品质性状均不存在显著的超高亲优势。(3)烟碱、总糖/烟碱、总氮/烟碱分别有8.33%、16.67%、8.33%组合的超低亲优势达到显著或极显著水平,其它品质性状各组合均不存在显著的超低亲优势。

关键词: 长寿沙田柚, 长寿沙田柚, 无菌苗, 见光, 移栽

Abstract: Three Cytoplasmic male sterile lines cultivated in Central-south Experiment Station, CNTC and 4 varieties of Flue-cured tobacco popularized in China were used to investigate the heterosis for quality characters, i.e., total sugars (TS), nicotine(Nic), total nitrogen (TN), chlorine(Cl), potassium oxide(K2O), TS/Nic, TN/Nic and K2O/Cl of lower leaves in Flue-cured tobacco. The results showed: (1) There were the heterosis from mid-parent value, Hm, performing in most crosses, and the positive significant crosses were accounted for 25.00% of crosses for TN, On the contrary, there were 33.33%、25.00% and 8.33%of negative significant crosses for TN/Nic, TS and K2O respectively. There were 41.67%, 16.67%, 8.33% and 8.33% of positive significant crosses and 8.33%, 8.33%, 33.33% and 8.33% of negative significant crosses for Nic, Cl, TS/Nic and K2O/Cl respectively(2) There were 25.00%, 16.67% and 8.33% of crosses performing the significant heterosis over high-parent, Hh, for TN, Nic and Cl respectively, and there were no crosses with significant Hh for the others (3) There was no cross performing the significant heterosis less lower-parent, Hl, for the quality trails except for Nic, TS/Nic and TN/Nic with 8.33%、16.67% and 8.33% of significant crosses respectively.

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