安徽农学通报
安徽農學通報
안휘농학통보
AUHUI AGRICULTURAL SCIENCE BULLETIN
2012年
2期
42-44,78
,共4页
周初跃%沈嘉%祖朝龙%廖华%刘碧荣%谢明%权军
週初躍%瀋嘉%祖朝龍%廖華%劉碧榮%謝明%權軍
주초약%침가%조조룡%료화%류벽영%사명%권군
烤烟%打顶措施%烟叶质量%等级结构
烤煙%打頂措施%煙葉質量%等級結構
고연%타정조시%연협질량%등급결구
Flue-cured tobacco%Topping measure%Tobacco leaf quality%Hierarchical structure
研究打顶时期、有效留叶数对中上部叶质量及等级构成及的影响。结果表明：随着打顶时间推迟和有效叶片数增加,烟株的株高、节距增加,上部叶叶面积降低;中、上部叶烟碱含量降低,上部叶糖分和钾的积累量增加。留叶数22片左右,现蕾后10d打顶（中心花开放50%左右）可以获得较高比例上等烟叶和经济效益。
研究打頂時期、有效留葉數對中上部葉質量及等級構成及的影響。結果錶明：隨著打頂時間推遲和有效葉片數增加,煙株的株高、節距增加,上部葉葉麵積降低;中、上部葉煙堿含量降低,上部葉糖分和鉀的積纍量增加。留葉數22片左右,現蕾後10d打頂（中心花開放50%左右）可以穫得較高比例上等煙葉和經濟效益。
연구타정시기、유효류협수대중상부협질량급등급구성급적영향。결과표명：수착타정시간추지화유효협편수증가,연주적주고、절거증가,상부협협면적강저;중、상부협연감함량강저,상부협당분화갑적적루량증가。류협수22편좌우,현뢰후10d타정（중심화개방50%좌우）가이획득교고비례상등연협화경제효익。
The effects of topping measures on middle and upper leaf quality and hierarchical structure of flue-cured tobacco was tested. Results showed that the plant height, the distance between internodes increased and upper leaf area decreased with the postponed topping stage and the improvement of apparent leaf number. When the topping date delayed and apparent leaf number increased, the nicotine content in middle and upper leaves decreased, and the carbohydrate and potassium content in upper leaves increased. The optimal economic efficiency and tobacco leaf quality appeared with approximately 22 leaves remained per plant, and topping at 10d after bud.
