Tobacco is a perennial plant in the Solanaceae family that has been grown as an important cash crop for more than 350 years in many countries around the world. Although the genus includes more than 65 species, Nicotiana tabacum L. (common tobacco
Yingchao Lin, Dejun Kong, Zhihong Wang, Yi Chen, Zhixiao Yang, Chun Wu, Hui Yang, and Lili Chen
Wei Hu, Qing Di, Jingyi Wei, Jie Zhang, and Jia Liu
Grafting is one method of the propagation of plants. A branch or bud of one plant is grafted onto the stem or root of another so that the two parts joined together and function as a whole plant. Grafting will not only change the ability of tobacco
Guirong Li, Ran Quan, Chaohui Yan, Xiaojin Hou, and Huiling Hu
and exogenous hormonal signals, and its overexpression in tobacco ( Nicotiana benthamiana ) enhanced resistance to powdery mildew ( Erysiphe cichoracearum ) and Phytophthora parasitica var. nicotianae ( Zhu et al., 2012 ). Seventy-four NAC
L. Mark Lagrimini, Jill Vaughn, John Finer, Karen Klotz, and Patrick Rubaihayo
Abbreviations: CaMV, cauliflower mosaic virus; POD, peroxidase; TobAnPOD, tobacco anionic peroxidase. 1 Dept. of Horticulture, to whom reprint requests should be addressed. 2 Dept. of Food Science and Technology. 3 Dept. of Agronomy. 4 Dept. of
Xiaobo Sun, Yanming Deng, Lijian Liang, Xinping Jia, Zheng Xiao, and Jiale Su
- overexpressing tobacco to further understand the physiological functions mediated by SbPIP1 in plants. Materials and Methods Plant materials and treatments. Salicornia bigelovii seeds were soaked in tap water for 3 h and then grown in plastic pots (1.2 L
James M. Crosslin
Tobacco rattle virus (TRV) is the type member of the tobravirus group. These viruses are transmitted by soil-inhabiting nematodes in the Trichodorus and Paratrichodorus genera ( Harrison, 1970 ; Harrison and Robinson, 1986 ). The virus has a
Cong Li, Lie-Bao Han, and Xunzhong Zhang
; Jiang et al., 2009 ; Wang et al., 2010 ). Overexpression of ERF genes has been found to confer drought tolerance in tobacco plants ( Trujillo et al., 2008 ). Plants possess various mechanisms to cope with drought stress. Plants undergo osmotic
Brent Rowell and John C. Snyder
“We are a tobacco state” is frequently heard among farmers and agricultural leaders in Kentucky; the state's farm economy has always revolved around burley tobacco production. Tobacco, grown in Kentucky for nearly two centuries, remains the most valuable crop earning approximately $694 million in 1995. Even our unusual terminology of “alternative,” “supplemental,” or “opportunity” crops denotes the prime position of tobacco and attitudes toward vegetable crop production. This long tradition and attitudes associated with it contribute to a serious lack of confidence and low expectations when it comes to diversification with vegetable crops. These low expectations and the consequent circular pattern of experience with vegetable production were revealed in a multidisciplinary, 5-year research project designed to determine opportunities for and constraints to vegetable production in the state. The study showed that nearly half of Kentucky's commercial vegetable growers also were tobacco growers and that there were no fundamental incompatibilities in tobacco–vegetable cropping systems. Although farmers considered lack of markets a major constraint, economic research revealed that growers were often unwilling to use and take the risks associated with existing market structures and channels. As a result of these findings, a major on-farm demonstration program was implemented to raise expectations and break the “circular syndrome”. More recently, new partnerships and collaborative relationships have been established between university horticulture and marketing specialists and the Burley Tobacco Growers Cooperative Association for the promotion of “supplemental crops” among Kentucky's tobacco growers.
Andrew C. Bell and Mary M. Peet*
Environmental restoration of streams and wetlands in North Carolina is creating a growing demand for commercially available native plant material. Recent changes in the tobacco industry have resulted in decreased production leaving some tobacco greenhouses, once utilized for a few months, empty year-round. Identifying alternative crops that can be grown in tobacco greenhouses will provide valuable income to economically distressed tobacco growers. The floatation system (sub-irrigation) employed in the production of tobacco transplants in greenhouses is similar to that utilized by some native plant nurseries to produce wetland and riparian species. Local production of this plant material can enhance restoration project goals by increasing utilization of regional germplasm in this industry and reducing the risk of importing exotic pests with material shipped from out-of-state. To research these possibilities, we constructed a demonstration tobacco greenhouse with multiple float beds. Three commercially available media, including a tobacco seedling mixture, were tested. No differences were observed among the plants grown in different media. After one growing season, we have identified close to 20 species, woody and herbaceous, that can be successfully grown in a traditional tobacco greenhouse with minimal input or alternation to the structure or normal production practices. Additional research is needed, however, to address optimal production criteria.
A.M. Clements and L.A. Weston
Fall cole crops of exceptional quality and high market value are produced in Kentucky. Tobacco is an integral part of agriculture in the southeastern states and production of fall cole crops following tobacco may increase diversification and Potential profits. A float system was utilized for transplant production. Field plots were established with broccoli and cabbage grown conventionally, planted into killed sudex cover, cultivated tobacco stubble and directly into tobacco stubble. Data were collected on soil fertility, insect and weed populations, crop quality and yield. Periodically, foliar samples were analyzed for nitrate, total nitrogen, phosphorus, potassium and calcium content. Fall cole crops grown conventionally or in killed sudex cover produced comparable results and head size. Insect pressures were reduced in killed sudex covers. Total yield and quality were reduced when seedlings where planted directly into tobacco stubble.