摘要
在不同播期、湖南不同地区和不同年份研究了烤烟少叶型品种Ｇ８０，Ｋ３２６，ＮＣ８２和ＮＣ８９的出苗、叶片发生和生长规律，结果表明，在不同的生态环境下，这些品种的出苗、叶片发生日期和速度有较大的差异；在相同的环境条件下，叶片呈现相同的发生规律。４个品种叶片的生长发育所需时间长（４０．０～４９．５ｄ），成熟时间短（８．５～２２．７ｄ）．经通径分析，有效积温是影响叶片发生和生育的主导因子，达极显著水平（ｐ１ｙ＝１．１１５，ｒ１ｙ＝０．９９３）。
The emergence of seedlings。rule of leaves birth and growth of minor-leaf typevarieties(G80,K326,NC82 and NC89 ) in roasted tobacco was studied through differendseeding tims,regions and years。The results showed that there was big difference in the see-ding emerence,leaf birth date and speed among varieties under different ecological environ-ment.Leaf birth rule was similar among varieties under similar environment conditions,Thegrowth of leaves need a long period(40.0～49.5 d) and the duration of maturity is short(8.5～22.7 d) among four varieties.Effective temperature accumulation was a main factoraffcting birth and growth of leaves by path cofficient-analysis(p1y=1.115,r1y=0.993)。
基金
湖南省科委资助项目
关键词
烟草
烤烟叶
少叶型
品种
生长规律
tobacco
flue-cured tobacco
culivated Varieties
growth
laws
