Cannabis sativa L. - Botany and Biotechnology

1.6 Four Utilitarian Classes ofCannabis The many different kinds of plant ofC. sativacan be grouped into four basic utilitarian ...

one or more of the different categories of domesticated plants. As discussed in this section, on the basis of visually evident a ...

modified in somefiber, oilseed and marijuana selections, as noted later. In common with many other species with both domesticate ...

mature seeds or fruits remain on the plant. This reduction of“shattering”(natural shedding of seeds at maturity) is the most imp ...

herbivores. The layer is developmentally homologous with the perianth—the petals and sepals of conventionalflowers (femaleflower ...

1.6.2.1 Historical Review For most of recorded history,C. sativawas primarily valued as afiber source, considerably less so as a ...

hempen cloth trailing back at least 6 millennia. For thousands of years, hemp has been most valued for rope, because of its stre ...

rayon from wood cellulose in the 1890s. Largely during the twentieth century, commercial syntheticfiber technology increasingly ...

1.6.2.2 Architecture and Anatomy Fiber hemp plants, by contrast withC. sativaplants grown for marijuana or oilseed, and also in ...

frequently about 24°C, a rather elevated temperature reflecting adaptation to a relatively warm subtropical climate. However, co ...

quickly), and inC. sativahas very minor market significance, although of con- siderable interest biologically and medically. (2) ...

In the past, hemp seed has generally been a food of the impoverished social classes, or a famine food. Often the whole seed, inc ...

dietary use of hempseed oil, hempseed production has become a significant sector. Indeed, the economic prospects for continued d ...

branching plants for the purpose of fully and uniformly occupying afield, and maximally utilizing solar irradiation. For many cr ...

Seed Size Versus Seed Quantity Although some cultivars ofC. sativahave quite large seeds, until recently oilseed forms appear to ...

1.6.3.4 Cannabinoid Profile Cultivars dedicated to oilseed production have been bred recently, mostly in Europe and Canada, and ...

employed for recreational usage. While THC has proven useful for some medical purposes and has potential for others, it has beco ...

remain quite small and are very densely covered with secretory glands. By contrast, pollinatedflowers develop into“seeds”(achene ...

examined by Mukherjee et al. ( 2008 ), although the analysis is unclear with regard to relationships with modern biotypes.) Zoro ...

extensively, it may have been introduced by workers from India and elsewhere in Asia during the mid-1800s (Rubin and Comitas 197 ...