论文部分内容阅读
烤烟是叶用作物,留叶多少,不仅与产量高低有直接的关系,而且对品质也有很大影响。因此,生产者把留叶数作为一项极为重要的措施。目前,烤烟品质较好的国家,一般留叶16—20片,已成为稳产优质的措施之一。我国各产区一般留叶偏多,大致在20—30片。长期以来,对烤烟留叶多少的认识是不一致的。究其原因,多出于对亩产值的不同看法。为了探讨烤烟的某些植物学性状及其与产量、品质、安全性的相关关系,我们于1981年设计了田间试验,着重研究了不同叶位叶片的特性。从获得的43项数据中可以看出,着生部位不同
Flue-cured tobacco leaf crops, leave much, not only has a direct relationship with the production level, but also have a great impact on the quality. Therefore, producers regard the number of leaves as an extremely important measure. At present, countries with better quality flue-cured tobacco generally have 16-20 leaves, which has become one of the measures for stable and high quality. In general, the leaves of many producing areas in our country are mostly in 20-30 pieces. For a long time, the awareness of how much leaf remains in tobacco leaves is inconsistent. The reason, more than the different views on the value of mu. In order to explore some of the botanical characters of flue-cured tobacco and their relationship with yield, quality and safety, we designed a field experiment in 1981 to study the characteristics of leaves at different leaf positions. As can be seen from the 43 data obtained, different parts of life