Variable cotyledon numbers in Mammillaria beneckei
... There are more complex systems possible, like the 21:34 system, found in some composite flowers. One of the most outstanding properties of these spiral systems is that they are almost always composed of two adjacent numbers of the Fibonacci series. In the Fibonacci series, the next number can be cal ...
... There are more complex systems possible, like the 21:34 system, found in some composite flowers. One of the most outstanding properties of these spiral systems is that they are almost always composed of two adjacent numbers of the Fibonacci series. In the Fibonacci series, the next number can be cal ...
Dof5.6/HCA2, a Dof Transcription Factor Gene, Regulates
... Because hca2 is a dominant mutant from an activation tagging mutant collection (Qin et al., 2003), the mutant is probably a gainof-function mutant caused by a T-DNA insertion. Through thermal asymmetric interlaced (TAIL)-PCR, sequencing and DNA gel blot analysis, we identified a single T-DNA inserti ...
... Because hca2 is a dominant mutant from an activation tagging mutant collection (Qin et al., 2003), the mutant is probably a gainof-function mutant caused by a T-DNA insertion. Through thermal asymmetric interlaced (TAIL)-PCR, sequencing and DNA gel blot analysis, we identified a single T-DNA inserti ...
Beware of Ragweed "Relatives"
... in mid-September. If you know you are allergic to ragweed you may have picked up some tips on how to avoid ragweed pollen and how to reduce your symptoms. Ragweed allergy sufferers may also need to stay away from other plants that are closely related to ragweed. In some people, certain things can cr ...
... in mid-September. If you know you are allergic to ragweed you may have picked up some tips on how to avoid ragweed pollen and how to reduce your symptoms. Ragweed allergy sufferers may also need to stay away from other plants that are closely related to ragweed. In some people, certain things can cr ...
BIO208 - National Open University of Nigeria
... • Algae are diverse group of organisms ranging from microscopic unicellular to giant thalloid forms anchored to rocks in the sea. Morphologically they can be distinguished as unicellular, colonial, filamentous, hetertrichous, thalloid and polysiphonoid forms. • The unicellular algae are simplest in ...
... • Algae are diverse group of organisms ranging from microscopic unicellular to giant thalloid forms anchored to rocks in the sea. Morphologically they can be distinguished as unicellular, colonial, filamentous, hetertrichous, thalloid and polysiphonoid forms. • The unicellular algae are simplest in ...
2.3. 3. The definition of medicinal plants.
... mayweed, blue-bottle, cinnamon, rosemary, garlic, etc.). In the 3 rd century BCE, Theophrastus already gave descriptions of 455 herbs. His herbarium was probably the first in Europe in which the preparation and use of medicines were described. Hippocratic cures were widely applied in the Roman Empir ...
... mayweed, blue-bottle, cinnamon, rosemary, garlic, etc.). In the 3 rd century BCE, Theophrastus already gave descriptions of 455 herbs. His herbarium was probably the first in Europe in which the preparation and use of medicines were described. Hippocratic cures were widely applied in the Roman Empir ...
Wetland megabias: ecological and
... were versatile, but physiologically highly specialized, capable of withstanding osmotic and chemical stresses in a dynamic environment, and were probably out-competed by mesophytic vegetation elsewhere. Here, we review the fossil record of hot spring floras from the intervening c. 400-million-year p ...
... were versatile, but physiologically highly specialized, capable of withstanding osmotic and chemical stresses in a dynamic environment, and were probably out-competed by mesophytic vegetation elsewhere. Here, we review the fossil record of hot spring floras from the intervening c. 400-million-year p ...
Plants under Continuous Light: A Review
... (Allium cepa L.) grown in continuous light completed their growth stages about 45 days earlier than under normal field conditions. The more rapid senescence of leaves was observed in potato plants grown under 24-h photoperiod (Wheeler and Tibbitts 1987). There are some reports in the scientific lite ...
... (Allium cepa L.) grown in continuous light completed their growth stages about 45 days earlier than under normal field conditions. The more rapid senescence of leaves was observed in potato plants grown under 24-h photoperiod (Wheeler and Tibbitts 1987). There are some reports in the scientific lite ...
21_22 Test
... 46. A plant with needlelike or scaly leaves that produces seeds in cones would most likely belong to the ____________________ division. 47. Nonvascular plants have to rely on ____________________ and ____________________ for transport of their water and nutrients. 48. ____________________ are small ...
... 46. A plant with needlelike or scaly leaves that produces seeds in cones would most likely belong to the ____________________ division. 47. Nonvascular plants have to rely on ____________________ and ____________________ for transport of their water and nutrients. 48. ____________________ are small ...
Classic Hosta Collection Brochure
... sieboldiana variety was discovered in George Arends’ nursery in Wuppertal, Germany, in about 1905. Arends believed this to be a hybrid between H. sieboldiana and H. tokudama. Part of the Elegans Group. There are differing plants that have been sold over the years. This is at least partially due to s ...
... sieboldiana variety was discovered in George Arends’ nursery in Wuppertal, Germany, in about 1905. Arends believed this to be a hybrid between H. sieboldiana and H. tokudama. Part of the Elegans Group. There are differing plants that have been sold over the years. This is at least partially due to s ...
Solanum lycopersicum TP-44-4 Rev 2 - CPVO
... The present protocol enters into force on 19.04.2016. Any ongoing DUS examination of candidate varieties started before the aforesaid date will not be affected by the approval of the Technical Protocol. Technical examinations of candidate varieties are carried out according to the TP in force when t ...
... The present protocol enters into force on 19.04.2016. Any ongoing DUS examination of candidate varieties started before the aforesaid date will not be affected by the approval of the Technical Protocol. Technical examinations of candidate varieties are carried out according to the TP in force when t ...
HYMENOXYS AMBIGENS VAR . WAGNERI (ASTERACEAE
... … not only sharply differentiate the new plant from P. floribunda but tend to break down the gap between the section of Actinea often separated as a distinct genus Hymenoxys and the hitherto well distinguished genus Plummera.’’ During a recent reexamination of P. ambigens var. ambigens specimens at ...
... … not only sharply differentiate the new plant from P. floribunda but tend to break down the gap between the section of Actinea often separated as a distinct genus Hymenoxys and the hitherto well distinguished genus Plummera.’’ During a recent reexamination of P. ambigens var. ambigens specimens at ...
The Fossil Record of Basal Monocots
... the Northern Hemisphere. While many fossils were originally assigned to these basal groups, rigorous paleobotanical studies show many of them to be misidentified. Acarus fossils have been reliably reported from the Eocene while those of Alismatales extend back to the early Cretaceous. The fossil rec ...
... the Northern Hemisphere. While many fossils were originally assigned to these basal groups, rigorous paleobotanical studies show many of them to be misidentified. Acarus fossils have been reliably reported from the Eocene while those of Alismatales extend back to the early Cretaceous. The fossil rec ...
Characterization of a pollen-specific agp1
... polypeptide backbones [15]. ‘‘Classical’’ AGPs include an Nterminal secretion sequence, a central domain rich in Pro/Hyp and a C-terminal hydrophobic domain for signaling [12,14,15,17] Herein, we characterized an Arabidopsis AGP1-LIKE PROTEIN (ALP; At3g26110), which have been shown to have 47% homol ...
... polypeptide backbones [15]. ‘‘Classical’’ AGPs include an Nterminal secretion sequence, a central domain rich in Pro/Hyp and a C-terminal hydrophobic domain for signaling [12,14,15,17] Herein, we characterized an Arabidopsis AGP1-LIKE PROTEIN (ALP; At3g26110), which have been shown to have 47% homol ...
Field Guide to Weeds of Eastern Oregon
... Oregon Bureau of Land Management Photo credits Photos by staff at Institute for Applied Ecology unless otherwise noted. Cover photo: Black henbane (Hyoscyamus niger) ...
... Oregon Bureau of Land Management Photo credits Photos by staff at Institute for Applied Ecology unless otherwise noted. Cover photo: Black henbane (Hyoscyamus niger) ...
Poison ivy, poison oak and poison sumac
... vine. It usually is found in uncultivated areas such as at woodland borders, along fences or walls, or around isolated trees or poles. Rarely does it occur on elevations above 5,000 feet. In North America, it is most common in the Midwest and along the eastern seaboard, south to Florida and the Gulf ...
... vine. It usually is found in uncultivated areas such as at woodland borders, along fences or walls, or around isolated trees or poles. Rarely does it occur on elevations above 5,000 feet. In North America, it is most common in the Midwest and along the eastern seaboard, south to Florida and the Gulf ...
Description of Materials and their Usefulness in Composting
... manure is often mixed with woody stable bedding or straw, which gives it a good mix of carbon and nitrogen. Horse manure, however, is more likely than others to contain weed seeds. Cattle manure is moister and less concentrated than that of other large animals. It is considered a cold manure, but it ...
... manure is often mixed with woody stable bedding or straw, which gives it a good mix of carbon and nitrogen. Horse manure, however, is more likely than others to contain weed seeds. Cattle manure is moister and less concentrated than that of other large animals. It is considered a cold manure, but it ...
PDF - Biodiversity Advisor
... region, Marais (1973) for tropical Africa, Kativu (1996) for the Flora Zambesiaca region and Whitehouse (2002) for tropical east Africa. In FPA, the combination of characters for a single species is well illustrated, providing the much needed morphological basis for distinguishing them. In his monog ...
... region, Marais (1973) for tropical Africa, Kativu (1996) for the Flora Zambesiaca region and Whitehouse (2002) for tropical east Africa. In FPA, the combination of characters for a single species is well illustrated, providing the much needed morphological basis for distinguishing them. In his monog ...
Applying Photosynthesis Research to Increase Crop Yields*
... thesis occurs. As a result, many photosynthetic organisms have evolved to cope with such extreme and dynamic variations in the availability of essential photosynthesis components! Therefore, in the last half century, photosynthesis research has continually asked how do various photosynthetic creatur ...
... thesis occurs. As a result, many photosynthetic organisms have evolved to cope with such extreme and dynamic variations in the availability of essential photosynthesis components! Therefore, in the last half century, photosynthesis research has continually asked how do various photosynthetic creatur ...
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... pink, white or violet flowers arranged as a corymb. The fruit is an achene with an aristate pappus and is easily dispersed by wind. A. conyzoides causes allergic reactions [3] (Figure 2). Xanthium indicum Koenig in Roxb: Family: Asteraceae Fl. and fr.: August-December The species is monoecious, wi ...
... pink, white or violet flowers arranged as a corymb. The fruit is an achene with an aristate pappus and is easily dispersed by wind. A. conyzoides causes allergic reactions [3] (Figure 2). Xanthium indicum Koenig in Roxb: Family: Asteraceae Fl. and fr.: August-December The species is monoecious, wi ...
Qualification Specification for RHS Level 2 Certificate in the
... Examinations will be offered in English. ...
... Examinations will be offered in English. ...
Rhododendron sp.
... Small-leaved evergreen rhododendrons tend to be very winter hardy. The most well know type is PJM, a hybrid between R. dauricum and R. minus. ...
... Small-leaved evergreen rhododendrons tend to be very winter hardy. The most well know type is PJM, a hybrid between R. dauricum and R. minus. ...
REGULATION OF GROWTH AND FLOWERING OF SOME
... occidentalis 'Smaragd'. In our experiments Caryopteris and Lespedeza taxa were investigated, which are autumn flowering woody plants. These shrubs are mainly sold as container-grown garden plants. Smaller and more compact plants would need fewer places in the nursery, and perhaps could be marketed n ...
... occidentalis 'Smaragd'. In our experiments Caryopteris and Lespedeza taxa were investigated, which are autumn flowering woody plants. These shrubs are mainly sold as container-grown garden plants. Smaller and more compact plants would need fewer places in the nursery, and perhaps could be marketed n ...
Evo-devo and the search for homology (``sameness``) in biological
... ‘‘Analysis of the structures, evolution and dynamics of systems is one of the main issues in theoretical biology today’’ (Breidbach et al., 2004, p. 1, excerpt from the editorial of ‘‘Theory in Biosciences’’). Aim of the paper Developmental biology and evolutionary studies have recently entered into ...
... ‘‘Analysis of the structures, evolution and dynamics of systems is one of the main issues in theoretical biology today’’ (Breidbach et al., 2004, p. 1, excerpt from the editorial of ‘‘Theory in Biosciences’’). Aim of the paper Developmental biology and evolutionary studies have recently entered into ...
AESA based IPM – Turmeric
... Intensive agricultural practices relying heavily on chemical pesticides are a major cause of wide spread ecological imbalances resulting in serious problems of insecticide resistance, pest resurgence and pesticide residues. There is a growing awareness world over on the need for promoting environmen ...
... Intensive agricultural practices relying heavily on chemical pesticides are a major cause of wide spread ecological imbalances resulting in serious problems of insecticide resistance, pest resurgence and pesticide residues. There is a growing awareness world over on the need for promoting environmen ...
invasive weed identification and management
... into an environment outside of their native range. In their new environment, they have few or no natural enemies to limit their reproduction and spread (Anonymous 2002). Invasive weeds affect us all— farmers, homeowners, taxpayers, consumers, and tourists. Several invasive weeds also are considered ...
... into an environment outside of their native range. In their new environment, they have few or no natural enemies to limit their reproduction and spread (Anonymous 2002). Invasive weeds affect us all— farmers, homeowners, taxpayers, consumers, and tourists. Several invasive weeds also are considered ...
History of botany
The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants.Rudimentary botanical science began with empirically-based plant lore passed from generation to generation in the oral traditions of paleolithic hunter-gatherers. The first written records of plants were made in the Neolithic Revolution about 10,000 years ago as writing was developed in the settled agricultural communities where plants and animals were first domesticated. The first writings that show human curiosity about plants themselves, rather than the uses that could be made of them, appears in the teachings of Aristotle's student Theophrastus at the Lyceum in ancient Athens in about 350 BC; this is considered the starting point for modern botany. In Europe, this early botanical science was soon overshadowed by a medieval preoccupation with the medicinal properties of plants that lasted more than 1000 years. During this time, the medicinal works of classical antiquity were reproduced in manuscripts and books called herbals. In China and the Arab world, the Greco-Roman work on medicinal plants was preserved and extended.In Europe the Renaissance of the 14th–17th centuries heralded a scientific revival during which botany gradually emerged from natural history as an independent science, distinct from medicine and agriculture. Herbals were replaced by floras: books that described the native plants of local regions. The invention of the microscope stimulated the study of plant anatomy, and the first carefully designed experiments in plant physiology were performed. With the expansion of trade and exploration beyond Europe, the many new plants being discovered were subjected to an increasingly rigorous process of naming, description, and classification.Progressively more sophisticated scientific technology has aided the development of contemporary botanical offshoots in the plant sciences, ranging from the applied fields of economic botany (notably agriculture, horticulture and forestry), to the detailed examination of the structure and function of plants and their interaction with the environment over many scales from the large-scale global significance of vegetation and plant communities (biogeography and ecology) through to the small scale of subjects like cell theory, molecular biology and plant biochemistry.