Nicotiana tabacum, or cultivated tobacco, is a perennial herbaceous plant. It is found only in cultivation, where it is the most commonly grown of all plants in the Nicotiana genus, and its leaves are commercially grown in many countries to be processed into tobacco.
It grows to heights between 1 to 2 metres. Research is ongoing into its ancestry among wild Nicotiana species, but it is believed to be a hybrid of Nicotiana sylvestris, Nicotiana tomentosiformis, and possibly Nicotiana otophora.
N. tabacum is a native of tropical and subtropical America but it is now commercially cultivated worldwide. Other varieties are cultivated as ornamental plants or grow as a weed.
N. tabacum is sensitive to temperature, air, ground humidity and the type of land. Temperatures of 20 to 30°C are best for adequate growth; an atmospheric humidity of 80 to 85% and soil without a high level of nitrogen are also optimal.
Nicotiana tabacum Linné is a robust annual little branched herb up to 2.5m high with large green leaves and long trumpet shaped white-pinkish flowers. All parts are sticky, covered with short viscid-glandular hairs, which exude a yellow secretion containing nicotine.
Source: http://en.wikipedia.org/wiki/Nicotiana_tabacum
See Also: Roses, Floral, Flowers online
Mixer Roti 1 Kg Dibuat Untuk Industri Rumahan
2 tahun yang lalu
Tidak ada komentar:
Posting Komentar