Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) destaca-se como uma das principais pragas do tomateiro na atualidade. O objetivo desse trabalho foi avaliar a eficiência uso de extratos vegetais método controle lagartas T. em plantas tomateiro. Os neem (Azadirachta indica A. Juss), timbó (Lonchocarpus negrensis Benth), Aloe vera (L.) Burm.f. (Aloefertil®) e tabaco (Nicotiana tabacum L.) foram...

Tobacco (Nicotiana tabacum L.) is a plant grown for leaves. Leaves are dried and fermented to use in tobacco products. Oriental widely consumed the world due its good aroma qualities. For this, different chemical quality properties of lines, which have undergone small changes over time, been examined. The samples (27 lines 1 variety (Xanthi 2A)) obtained from three locations (Bagpinar, Evciler ...

Effects of excess concentrations of boron on major cell wall components of tobacco cells(Nicotiana tabacum L. cv. Burley 21) were studied. Pectin, xyloglucan, hydroxyproline-richglycoproteins (extensin), and arabinogalactan proteins were characterized. Results showedthat increased boron supply resulted in significant decrease in cell and cell wall dry weights.Also, high concentrations of boron ...

Interspecific amphihaploid and amphidiploid hybrids between Nicotiana glauca Grah. (2n = 24) and N. tabacum L. (2n = 48) cultivars BY 103 and K 326 were analysed. F1 amphihaploids (2n = 36) were viable and completely self- and cross-sterile, and mostly univalents were present during meiosis (with pairing range from 0 to 5). In some meiocytes, meiotic irregularities were observed, such as sporad...

Ethylene is a plant hormone that influences many aspects of plant growth and development (10). The biosynthetic pathway of ethylene production in higher plants is well defined. The rate-limiting step in this pathway is the reaction catalyzed by ACC' synthase (S-adenosyl-L-methionine methyl-thioadenosine-lyase, EC 4.4.1.4), which converts Sadenosyl-L-methionine to ACC. Tobacco (Nicotiana tabacum...

Background: All over the world, natural products containing different secondary metabolites have been used for antibacterial purposes, and as folk medicines with significant effects. Amongst many plants, Tobacco plants are cultivated all but natively belong to America. These contain variety of possess activity.
 Objectives: To conduct phytochemical analysis measure potential Nicotiana taba...