symbiotic mediators of rhizosphere and ecosystem processes
... delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens the mutualism between individual plant-fungus pairs and maintains community diversity. ...
... delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens the mutualism between individual plant-fungus pairs and maintains community diversity. ...
Hibiscus sabdariffa Linn. An overview
... herbaceous shrub, grows well in most soils that are well drained. The flowers are hermaphrodite and are pollinated by insects4. It requires a monthly rainfall ranging from 130 to 260 mm in the first 3 to 4 months of growth. Rain and high humidity during harvest and drying can downgrade the quality o ...
... herbaceous shrub, grows well in most soils that are well drained. The flowers are hermaphrodite and are pollinated by insects4. It requires a monthly rainfall ranging from 130 to 260 mm in the first 3 to 4 months of growth. Rain and high humidity during harvest and drying can downgrade the quality o ...
Download #111. Meyer, J. Y. and J. P. Malet. February 1997. Study and management of the alien invasive tree, Miconia calvescens DC. (Melastomataceae) in the islands of Raiatea and Tahaa (Society Islands, Frrench Polynesia): 1992-1996
... 1982 (see ref. & Meyer 1996a). Strong hurricanes which hit Tahiti between March 1982 and February 1983 are said to be the factors responsible for the sudden and dramatic explosion of M A 83 (Birnbaum 1989) ...
... 1982 (see ref. & Meyer 1996a). Strong hurricanes which hit Tahiti between March 1982 and February 1983 are said to be the factors responsible for the sudden and dramatic explosion of M A 83 (Birnbaum 1989) ...
4 . crop production
... Farm Unit: The total area of land under control of one farmer or a collective of farmers, including all the farming activities or enterprises. Genetic Diversity: The variability among living organisms from agricultural, forest and aquatic ecosystems; this includes diversity within species and betwee ...
... Farm Unit: The total area of land under control of one farmer or a collective of farmers, including all the farming activities or enterprises. Genetic Diversity: The variability among living organisms from agricultural, forest and aquatic ecosystems; this includes diversity within species and betwee ...
Plants and bulbs to flower in the summer and snowdrops
... grow in the garden, what they like and what they don’t like. Some gardeners (and gardens) grow snowdrops easily, others find it more of a trial. Experiment first on the less expensive snowdrops! There are some very good snowdrops that are distinct, vigorous and less costly - where getting a collecti ...
... grow in the garden, what they like and what they don’t like. Some gardeners (and gardens) grow snowdrops easily, others find it more of a trial. Experiment first on the less expensive snowdrops! There are some very good snowdrops that are distinct, vigorous and less costly - where getting a collecti ...
Developmental changes in barley microRNA expression profiles
... that are crucial regulators of gene expression which control plant development and response to environmental cues. We have analyzed microtranscriptomes of five barley developmental stages. Generally, during the barley development, miR168-3p and miR1432-5p levels increase while the 5’U-miR156-5p leve ...
... that are crucial regulators of gene expression which control plant development and response to environmental cues. We have analyzed microtranscriptomes of five barley developmental stages. Generally, during the barley development, miR168-3p and miR1432-5p levels increase while the 5’U-miR156-5p leve ...
Identifying Thrips & Their Damage in New England Greenhouses
... • Fringed Wings • Dark eyes • Short, straight antennae ...
... • Fringed Wings • Dark eyes • Short, straight antennae ...
Chapter 4 - Aggie Horticulture
... important agricultural crops coming from Asia (rice, millet, soybean, many vegetables), southwest Asia (wheat, barley, oats, rye), Africa (rice, sorghum, watermelon), and the Americas (corn, squash, beans, pepper, potato, sunflower, cotton, tobacco). Modern agriculture (agronomy, horticulture, and f ...
... important agricultural crops coming from Asia (rice, millet, soybean, many vegetables), southwest Asia (wheat, barley, oats, rye), Africa (rice, sorghum, watermelon), and the Americas (corn, squash, beans, pepper, potato, sunflower, cotton, tobacco). Modern agriculture (agronomy, horticulture, and f ...
The evolution of seeds
... Williams (2004). The hypothesis by Sargant (1900) suggests that in ancient seeds or seed-like structures the central cell used to be an additional gamete besides the egg cell. During fertilization, two embryos would have been produced in the ancestors of flowering plants, one of which evolved into t ...
... Williams (2004). The hypothesis by Sargant (1900) suggests that in ancient seeds or seed-like structures the central cell used to be an additional gamete besides the egg cell. During fertilization, two embryos would have been produced in the ancestors of flowering plants, one of which evolved into t ...
The evolution of seeds
... Williams (2004). The hypothesis by Sargant (1900) suggests that in ancient seeds or seed-like structures the central cell used to be an additional gamete besides the egg cell. During fertilization, two embryos would have been produced in the ancestors of flowering plants, one of which evolved into t ...
... Williams (2004). The hypothesis by Sargant (1900) suggests that in ancient seeds or seed-like structures the central cell used to be an additional gamete besides the egg cell. During fertilization, two embryos would have been produced in the ancestors of flowering plants, one of which evolved into t ...
(Progress in Botany 62) Prof. Dr. Walter Eschrich (auth.)
... This work is subject to copyright. All rights reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication ...
... This work is subject to copyright. All rights reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication ...
AnnuAl FlOwers
... Many are started early indoors while others are directly sown outside. As young seedlings grown indoors are very delicate, they need to be toughened up (a process known as hardening off) before they are transplanted outside. After five to eight days of hardening off, seedlings should be ready for pl ...
... Many are started early indoors while others are directly sown outside. As young seedlings grown indoors are very delicate, they need to be toughened up (a process known as hardening off) before they are transplanted outside. After five to eight days of hardening off, seedlings should be ready for pl ...
cleaned
... Farm Unit: The total area of land under control of one farmer or a collective of farmers, including all the farming activities or enterprises. Genetic Diversity: The variability among living organisms from agricultural, forest and aquatic ecosystems; this includes diversity within species and betwee ...
... Farm Unit: The total area of land under control of one farmer or a collective of farmers, including all the farming activities or enterprises. Genetic Diversity: The variability among living organisms from agricultural, forest and aquatic ecosystems; this includes diversity within species and betwee ...
Competition as a factor underlying the abundance of an uncommon
... Abstract. 1. Recent reviews of experimental studies provide compelling evidence that competition should be retained as a potential factor influencing the success of phytophagous insects. In this context, the objective of the study was to determine the role of interspecific and intraspecific competit ...
... Abstract. 1. Recent reviews of experimental studies provide compelling evidence that competition should be retained as a potential factor influencing the success of phytophagous insects. In this context, the objective of the study was to determine the role of interspecific and intraspecific competit ...
Gardener
... Weed management. Weed management (suppression via hoeing) should be practiced 1–2 times within 30 days of emergence. Both bush and climbing types possess moderately deep (1'–2' and 3'–4' respectively), branched tap root systems, and are good at outcompeting weeds as the crop advances. Watering. Wate ...
... Weed management. Weed management (suppression via hoeing) should be practiced 1–2 times within 30 days of emergence. Both bush and climbing types possess moderately deep (1'–2' and 3'–4' respectively), branched tap root systems, and are good at outcompeting weeds as the crop advances. Watering. Wate ...
THE SHIFTING IMPORTANCE OF COMPETITION AND FACILITATION ALONG
... size, but this size-structured change may be due more to decreasing facilitation rather than increasing competition (Chapter 2). Finally, plants may compete strongly for resources much of the time, but this can be outweighed by strong facilitation, and the interaction between the two processes can c ...
... size, but this size-structured change may be due more to decreasing facilitation rather than increasing competition (Chapter 2). Finally, plants may compete strongly for resources much of the time, but this can be outweighed by strong facilitation, and the interaction between the two processes can c ...
as a PDF
... bands; D1 and D2). The enzyme activity causing the uppermost blue-staining band (D1) in the wild-type extract was always absent from extracts of both dbe1 lines. This enzyme has been shown to be localized to the chloroplast of wildtype Arabidopsis plants (Zeeman et al., 1998). By extracting wild-typ ...
... bands; D1 and D2). The enzyme activity causing the uppermost blue-staining band (D1) in the wild-type extract was always absent from extracts of both dbe1 lines. This enzyme has been shown to be localized to the chloroplast of wildtype Arabidopsis plants (Zeeman et al., 1998). By extracting wild-typ ...
Crassulacean Acid Metabolism in Epiphytic Orchids
... and assists in the attachment of orchids to the bark of host trees (Ackerman, 1983; Benzing et al., 1982). Epiphytic orchids have considerable succulence in their shoot organs (leaves and pseudobulbs), which are important reservoir structures for storing water and nutrients (Benzing, 1990). The vege ...
... and assists in the attachment of orchids to the bark of host trees (Ackerman, 1983; Benzing et al., 1982). Epiphytic orchids have considerable succulence in their shoot organs (leaves and pseudobulbs), which are important reservoir structures for storing water and nutrients (Benzing, 1990). The vege ...
Diagnostic protocol for
... saprophyte on straw mulch or in soil. However, overwintering lesions, particularly those formed on angular shoots, are the most important source of inoculum for the following season. The bacteria are disseminated by rainwater running over the surfaces of lesions and splashing onto healthy shoots. Sy ...
... saprophyte on straw mulch or in soil. However, overwintering lesions, particularly those formed on angular shoots, are the most important source of inoculum for the following season. The bacteria are disseminated by rainwater running over the surfaces of lesions and splashing onto healthy shoots. Sy ...
10 Translocation in the Phloem Chapter
... result, the symplast of the sieve element and its companion cell is relatively, if not entirely, symplastically isolated from that of surrounding cells. Transfer cells are similar to ordinary companion cells, except for the development of fingerlike wall ingrowths, particularly on the cell walls tha ...
... result, the symplast of the sieve element and its companion cell is relatively, if not entirely, symplastically isolated from that of surrounding cells. Transfer cells are similar to ordinary companion cells, except for the development of fingerlike wall ingrowths, particularly on the cell walls tha ...
The Global Potential for Quinoa and Other Andean
... (Lupinus mutabilis Sweet). They all have high nutritional value, with an outstanding protein quality and a capacity to be transformed into a large range of products. The Andean grains can be used to make products of different flavor, color, and form (CIED, 1992). Traditionally, Andean farmers utiliz ...
... (Lupinus mutabilis Sweet). They all have high nutritional value, with an outstanding protein quality and a capacity to be transformed into a large range of products. The Andean grains can be used to make products of different flavor, color, and form (CIED, 1992). Traditionally, Andean farmers utiliz ...
Citrus
... cultural practices to effect habitat manipulation and enhance biological control. The strategies focus on pest management both below ground and above ground. There is growing need to integrate AESA based IPM and principles of ecological engineering for pest management. There is a rising public conce ...
... cultural practices to effect habitat manipulation and enhance biological control. The strategies focus on pest management both below ground and above ground. There is growing need to integrate AESA based IPM and principles of ecological engineering for pest management. There is a rising public conce ...
nitrogen fixation and its improvement through genetic engineering
... sp.) with the soil bacteria of genus Frankia, an actinomycete (Wagner, 2012). Nitrogen fixation is an “old” topic in scientific terms since it is over a century ago that scientists experimentally proved that some “unique” species of plants with the help of microbes that were later found bearing nitr ...
... sp.) with the soil bacteria of genus Frankia, an actinomycete (Wagner, 2012). Nitrogen fixation is an “old” topic in scientific terms since it is over a century ago that scientists experimentally proved that some “unique” species of plants with the help of microbes that were later found bearing nitr ...
Control of Abscisic Acid Catabolism and Abscisic Acid Homeostasis
... biosynthesis gene encoding 9-cis-epoxycarotenoid dioxygenase in anthers is mainly expressed in parenchyma cells surrounding the vascular bundle of the anther. Transgenic rice lines expressing the wheat TaABA8#OH1 gene under the control of the OsG6B tapetum-specific promoter resulted in reduced anthe ...
... biosynthesis gene encoding 9-cis-epoxycarotenoid dioxygenase in anthers is mainly expressed in parenchyma cells surrounding the vascular bundle of the anther. Transgenic rice lines expressing the wheat TaABA8#OH1 gene under the control of the OsG6B tapetum-specific promoter resulted in reduced anthe ...
2016 Plant Portraits Complete List - Pennsylvania Horticultural Society
... tree. Carpinus japonica provides year-round interest. In the spring, the tree is profusely adorned with thumb-size coneshaped nutlets in shades of cream, tan, and green; they turn brown upon maturity and persist into fall. Its clean serrated foliage is dark green in the summer and turns yellowish in ...
... tree. Carpinus japonica provides year-round interest. In the spring, the tree is profusely adorned with thumb-size coneshaped nutlets in shades of cream, tan, and green; they turn brown upon maturity and persist into fall. Its clean serrated foliage is dark green in the summer and turns yellowish in ...
Plant breeding
Plant breeding is the art and science of changing the traits of plants in order to produce desired characteristics. Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for propagation, to more complex molecular techniques (see cultigen and cultivar).Plant breeding has been practiced for thousands of years, since near the beginning of human civilization. It is practiced worldwide by individuals such as gardeners and farmers, or by professional plant breeders employed by organizations such as government institutions, universities, crop-specific industry associations or research centers.International development agencies believe that breeding new crops is important for ensuring food security by developing new varieties that are higher-yielding, resistant to pests and diseases, drought-resistant or regionally adapted to different environments and growing conditions.