Plant Hormones - NCEA Level 3 Biology
... Other Effects of Auxin Auxin stimulates the growth of cambium when a tree stem is under stress – if a branch is in danger of breaking due to heavy fruit or leaves, the cambium lays down more wood on one side to strengthen the branch. Suppression of root elongation. Initiation of flowering in some p ...
... Other Effects of Auxin Auxin stimulates the growth of cambium when a tree stem is under stress – if a branch is in danger of breaking due to heavy fruit or leaves, the cambium lays down more wood on one side to strengthen the branch. Suppression of root elongation. Initiation of flowering in some p ...
Evolutionary senescence in plants
... species, death at the end of the growing season is usually caused by extrinsic causes. A precise definition of evolutionary senescence proposed by Rose (1991) is a decline in age-specific fitness components due to internal physiological deterioration. This definition thus excludes increased death du ...
... species, death at the end of the growing season is usually caused by extrinsic causes. A precise definition of evolutionary senescence proposed by Rose (1991) is a decline in age-specific fitness components due to internal physiological deterioration. This definition thus excludes increased death du ...
15. Gymnosperms of Nainital
... due to their gregarious looks, attractive foliage, heavy trunks and typical reproductive apparatus and are the chief ornamental plants. The wood is straight-grained, light for its strength, and easily worked. Wood of gymnosperms is often called softwood to differentiate it from the hardwood angiospe ...
... due to their gregarious looks, attractive foliage, heavy trunks and typical reproductive apparatus and are the chief ornamental plants. The wood is straight-grained, light for its strength, and easily worked. Wood of gymnosperms is often called softwood to differentiate it from the hardwood angiospe ...
Goldschmidt and Monselise
... first) but during the progress of subsequent drop tJ1e proportion of fruitlets on these leafless inflorescences decreased in favor of leafy inflorescences. :1\ ew leaves have an apparently important nutritional (9, 10, 12) or hormonal (2, 8) task in ensuring the persistence of frui tlets. ·when seve ...
... first) but during the progress of subsequent drop tJ1e proportion of fruitlets on these leafless inflorescences decreased in favor of leafy inflorescences. :1\ ew leaves have an apparently important nutritional (9, 10, 12) or hormonal (2, 8) task in ensuring the persistence of frui tlets. ·when seve ...
biochemical and genetic examinations of the general defense
... Resistance breeding, which includes the field of genetics and plant pathology, is trying to make it possible by building specific resistance genes into a given plant species that the cultivation of vegetables for fresh consumptoin be free from plant-protecting agents. This workteam which has been de ...
... Resistance breeding, which includes the field of genetics and plant pathology, is trying to make it possible by building specific resistance genes into a given plant species that the cultivation of vegetables for fresh consumptoin be free from plant-protecting agents. This workteam which has been de ...
Field Guide to the Caribbean Flora Seen Throughout Study Abroad
... At the beginning of the study abroad program, prior to choosing the distribution of flora as the definite project topic, around twenty flower pictures were obtained. Once it was decided that the project would focus on Dominican flowers, around thirty more were acquired. Using an iPhone 3GS camera/ 2 ...
... At the beginning of the study abroad program, prior to choosing the distribution of flora as the definite project topic, around twenty flower pictures were obtained. Once it was decided that the project would focus on Dominican flowers, around thirty more were acquired. Using an iPhone 3GS camera/ 2 ...
Environmental Weeds of the Eastern Hills Region
... For small infestation seedlings and small plants can be dug out when soils are moist. For larger infestations plants can be treated with selective and non-selective herbicides. Most of the root system must be removed for effective control. Burning is not effective apart from allowing better access T ...
... For small infestation seedlings and small plants can be dug out when soils are moist. For larger infestations plants can be treated with selective and non-selective herbicides. Most of the root system must be removed for effective control. Burning is not effective apart from allowing better access T ...
Chapter 24: Gymnosperms
... Cycadeoids, which had large compound leaves and short, unbranched stems like cycads. Despite their similarity to cycads, cycadeoids had a different life history, including flower-like structures Figure 24.5. Reconstructions of two extinct that contained both megasporangia gymnosperms. (a) Cordaites, ...
... Cycadeoids, which had large compound leaves and short, unbranched stems like cycads. Despite their similarity to cycads, cycadeoids had a different life history, including flower-like structures Figure 24.5. Reconstructions of two extinct that contained both megasporangia gymnosperms. (a) Cordaites, ...
Palm Morphology and Anatomy - EDIS
... palms produce the longest internodes, which decrease sharply in length as the palm matures. Stems of juvenile palms (those which have not yet achieved their maximum diameter) elongate very slowly, expanding incrementally in diameter with each new leaf. The result is that palm stem bases are V shaped ...
... palms produce the longest internodes, which decrease sharply in length as the palm matures. Stems of juvenile palms (those which have not yet achieved their maximum diameter) elongate very slowly, expanding incrementally in diameter with each new leaf. The result is that palm stem bases are V shaped ...
Regulatory Shifts in Plastid Transcription Play a Key Role in
... RNA polymerases and a bacterial-type plastid-encoded RNA polymerase. Both types recognize specific sets of promoters and transcribe partly over-lapping as well as specific sets of genes. Here we summarize the current knowledge about the sequential activity of these plastid RNA polymerases and their ...
... RNA polymerases and a bacterial-type plastid-encoded RNA polymerase. Both types recognize specific sets of promoters and transcribe partly over-lapping as well as specific sets of genes. Here we summarize the current knowledge about the sequential activity of these plastid RNA polymerases and their ...
The heathers of Europe and adjacent areas
... Scores of infraspecific names have been published (cf. Beijerinck, 1940). The most used is var. hirsuta S. F. Gray (predated by var. hirsuta Waitz), but opinions vary as to where the dividing line comes between the extremes of glabrous and shaggy plants. Unambiguous is var. multibracteata ]. Jansen. ...
... Scores of infraspecific names have been published (cf. Beijerinck, 1940). The most used is var. hirsuta S. F. Gray (predated by var. hirsuta Waitz), but opinions vary as to where the dividing line comes between the extremes of glabrous and shaggy plants. Unambiguous is var. multibracteata ]. Jansen. ...
Simulation of flowering plants - TEL (thèses-en-ligne)
... traceable directly in living flowering plants is a stand-by in studying their physiology. A huge biological diversity both within and between individuals provides a vast area of objectives which the image synthesis must challenge. Flower modelling constitutes a part of a larger research area, plant ...
... traceable directly in living flowering plants is a stand-by in studying their physiology. A huge biological diversity both within and between individuals provides a vast area of objectives which the image synthesis must challenge. Flower modelling constitutes a part of a larger research area, plant ...
Low-growing vegetation suitable for transmission corridors
... CenterPoint Energy carefully removes trees and controls the vegetation within its transmission line corridors to provide for a low-growing, predictable environment. Do not plant anything within a transmission right-of-way without first seeking approval from the CenterPoint Energy Surveying & Right o ...
... CenterPoint Energy carefully removes trees and controls the vegetation within its transmission line corridors to provide for a low-growing, predictable environment. Do not plant anything within a transmission right-of-way without first seeking approval from the CenterPoint Energy Surveying & Right o ...
Orienpet Lilies
... 20th. Beautiful, trumpet flowers with dark red centers. Extremely fragrant and hardier than its female parent. ...
... 20th. Beautiful, trumpet flowers with dark red centers. Extremely fragrant and hardier than its female parent. ...
Around the World with Brassicas
... Wisconsin Fast Plants, rapid-cycling brassicas, are part of a large family of plants called crucifers (Latin = Cruciferae). Crucifers are easily distinguished by the characteristic shape of their flowers—four petals in the shape of a cross or crucifix. A section, or genus, of the crucifer family is ...
... Wisconsin Fast Plants, rapid-cycling brassicas, are part of a large family of plants called crucifers (Latin = Cruciferae). Crucifers are easily distinguished by the characteristic shape of their flowers—four petals in the shape of a cross or crucifix. A section, or genus, of the crucifer family is ...
Girard`s Rainbow Fetterbush
... Girard's Rainbow Fetterbush features showy racemes of fragrant white bell-shaped flowers hanging below the branches from late spring to early summer. It has attractive creamy white-variegated deciduous dark green foliagewith hints of pink which emerges coppery-bronze in spring. The glossy pointy lea ...
... Girard's Rainbow Fetterbush features showy racemes of fragrant white bell-shaped flowers hanging below the branches from late spring to early summer. It has attractive creamy white-variegated deciduous dark green foliagewith hints of pink which emerges coppery-bronze in spring. The glossy pointy lea ...
Dry soil - University of Minnesota Extension
... • In the ground, annual foliage can carry a summer display through the quiet times between perennial flowering periods. • Plants listed may be perennials in other zones, but are used as annuals in our northern gardens. ...
... • In the ground, annual foliage can carry a summer display through the quiet times between perennial flowering periods. • Plants listed may be perennials in other zones, but are used as annuals in our northern gardens. ...
Wisteria - New Jersey Invasive Species Strike Team
... • Smooth light gray bark • Mature stem is fluted, muscle-like • Sends out a large amount of “runners,” vines that travel along the ground making a very dense root network Leaves: • Alternate leaves, pinnately compound with a terminal leaf Flowers: • Blooms mid-May • Lavender, purple, or white hangin ...
... • Smooth light gray bark • Mature stem is fluted, muscle-like • Sends out a large amount of “runners,” vines that travel along the ground making a very dense root network Leaves: • Alternate leaves, pinnately compound with a terminal leaf Flowers: • Blooms mid-May • Lavender, purple, or white hangin ...
New Methods for Identification and Evaluation of Intake
... paddocks on these same varieties and compared with data from the short-term methods. If successful, the methodologies developed in this project could be used by plant breeders and variety evaluators to identify useful genetic material and produce grass varieties optimised for grazing systems for a r ...
... paddocks on these same varieties and compared with data from the short-term methods. If successful, the methodologies developed in this project could be used by plant breeders and variety evaluators to identify useful genetic material and produce grass varieties optimised for grazing systems for a r ...
(Calendula officinalis L.) plants treated with two chemical mutagenesis
... and Americas. In the last decade, there were more than 2543 mutant cultivars derived from 175 plant species including ornamentals, cereals, oilseeds, pulses, vegetables, fruits, and fibers released in 50 countries worldwide (Chopra, 2005). Chemical mutagenesis is a simple approach used to create mut ...
... and Americas. In the last decade, there were more than 2543 mutant cultivars derived from 175 plant species including ornamentals, cereals, oilseeds, pulses, vegetables, fruits, and fibers released in 50 countries worldwide (Chopra, 2005). Chemical mutagenesis is a simple approach used to create mut ...
preventing deer damage in the home landscape
... new growth emerges and after rainfall. ● Use motion-activated sprinklers, lights, or noisemakers (e.g. radios or whistles), where appropriate, to startle deer and scare them away. Success with these type of deterrents is typically short-lived. Deer become accustomed to and recognize the devices if ...
... new growth emerges and after rainfall. ● Use motion-activated sprinklers, lights, or noisemakers (e.g. radios or whistles), where appropriate, to startle deer and scare them away. Success with these type of deterrents is typically short-lived. Deer become accustomed to and recognize the devices if ...
Arabidopsis AtPRX34 Submitted in partial fulfilment of the requirements of the degree
... end, plant defence studies have been conducted on model organisms like Arabidopsis thaliana. These studies identified an ongoing evolutionary arms race between plants and pathogens. Certain plants can produce an effective defence response to protect themself against invaders with either preformed or ...
... end, plant defence studies have been conducted on model organisms like Arabidopsis thaliana. These studies identified an ongoing evolutionary arms race between plants and pathogens. Certain plants can produce an effective defence response to protect themself against invaders with either preformed or ...
Agave and Yucca: Tough Plants for Tough Times1
... emerge as adults, with the entire life cycle lasting 60–90 days. This weevil can attack all species of agave, though large-growing species with broad leaves (like century plant, Agave americana) appear more susceptible than small species with hard or fibrous leaves. Weak plants or agave plants that ...
... emerge as adults, with the entire life cycle lasting 60–90 days. This weevil can attack all species of agave, though large-growing species with broad leaves (like century plant, Agave americana) appear more susceptible than small species with hard or fibrous leaves. Weak plants or agave plants that ...
Plants and bulbs to flower in the summer and snowdrops
... First described as occurring on the Crimean peninsula in 1808. A very broad-leaved form of the species plant with dainty rounded flowers. It is very vigorous though there are fewer flowers and well suited to spreading through wilder places seeding freely. Bulbs of these are more variable in size and ...
... First described as occurring on the Crimean peninsula in 1808. A very broad-leaved form of the species plant with dainty rounded flowers. It is very vigorous though there are fewer flowers and well suited to spreading through wilder places seeding freely. Bulbs of these are more variable in size and ...
Plant evolutionary developmental biology
Evolutionary developmental biology (evo-devo) refers to the study of developmental programs and patterns from an evolutionary perspective. It seeks to understand the various influences shaping the form and nature of life on the planet. Evo-devo arose as a separate branch of science rather recently. An early sign of this occurred in 1999.Most of the synthesis in evo-devo has been in the field of animal evolution, one reason being the presence of elegant model systems like Drosophila melanogaster, C. elegans, zebrafish and Xenopus laevis. However, in the past couple of decades, a wealth of information on plant morphology, coupled with modern molecular techniques has helped shed light on the conserved and unique developmental patterns in the plant kingdom also.