摘要
各烤烟品种大田期有3～4个出叶高峰,分别在栽后25d、32d、40d、50d左右;清香型品系C2、F1-35等烟株进入团棵时间相对长,前期干物质的积累较多,各品种中,C2的干物质积累总量大,而施肥水平较低,属投入少产出大的高效品种,宜研究推广。
Each flue-cured tobacco variety has three - four leafing peaks, they were 25 d,32 d,40 d,50 d after transplanting sepa- rately, the rosette stage of faint-scent type lines C2 and F1-35 is longer, the amount of dry matter accumulation is more at prophase, a- mong these varieties, the total amount of dry matter accumulation in C2 is more than others, but fertilization level is lower, it belongs to high efficient varieties of less westment and better profits,and should therefore be researched and popularized.
关键词
烤烟
出叶速度
干物质积累
flue-cured tobacco
the leaf emergence rate
dry matter accumulation
