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Based on an exhaustive collection of terms from various sources, RiceVocs - A Compendium of Rice related vocabulary has been developed. This document along with Information Architecture is used for tagging purposes to make RKMP a semantic portal.
The vast world of rice terminologies makes it a highly challenging and demanding job. The RiceVocs comprises of about 2500 terms related to rice crop arranged in alphabetical manner. Various terms related to Agronomy, Plant Breeding & Genetics, Biotechnology, Agricultural Engineering, Soil science, Entomology, Pathology, Physiology, Extension, Economics, etc. are incorporated in this compilation. Emphasis is made to define these terms in the simplest way. Where ever possible, the scientific definitions are avoided. This may also be used as a ready reckoner for the extension officers working with the rice knowledge. The document is an outcome of the compilation of terms from various digital/ non-digital sources. In particular, the authors would like to acknowledge www.knowledgebank.irri.org, http://en.wikipedia.org, Chawal Sabdawali - Brajendra et al., Rice - Jata S Nanda & Pawan K Agrawal, Chemicals for Crop Protection and Pest control - M B Green, G S Hartley & T F West, http://www.fao.org, Plant Pathology - George N Agrios, Agro Industrial development in Indian developing economy - Kaustubh N Misra, http://agritech.tnau.ac.in/. Rice knowledge is enriched day by day and making of glossaries has more than one purpose. We are aware of this fact and have essentially named the document as version 1.0 anticipating the revised versions in the years to come. In our maiden attempt, mistakes are bound to creep in and we sincerely request the readers to bring it to our notice. Finally we thank, ICAR-NAIP programme for its funding and the printer for typesetting.
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| E
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| F
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| G
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| I
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| R
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| X
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A line |
The male sterile parent involving cytoplasmic genetic male sterility developed to produce hybrid seed. |
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Aberrant weather |
Unfavourable deviated weather from the normally expected one is called aberrant weather. Aberrant weather is a common feature of rainfed agriculture. |
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Abiotic |
Abiotic components are non-living chemical and physical factors of the environment. Abiotic factors, while generally downplayed, can have enormous impact on evolution. Abiotic components are aspects of geodiversity. |
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Abiotic stress |
It is the negative impact of non-living factors on the living organisms in a specific environment.
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Abiotic Stress Resistance |
It is the resistance developed against abiotic stress. |
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Abnormal growth |
Growth that deviates from the normal type or form due to various environmental factors such as disease, pests, soil condition, humidity, temperature, etc.
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Abnormal seedling |
Seedlings may be classified as abnormal due to missing parts, lesions or insufficient growth during the germination period.
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Abscisic acid |
Abscisic acid (ABA), also known as abscisin ii and dormin, is a plant hormone. ABA regulates in many plant developmental processes, including bud dormancy.
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Absolute humidity |
Absolute humidity on a volume basis is the quantity of water in a particular volume of air. The most common units are grams per cubic meter, although any mass unit and any volume unit could be used. Pounds per cubic foot is common in the USA, and occasionally even other units mixing the imperial and metric systems are used.
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Absolute plating efficiency |
The number of individual cells that give rise to colonies relative to the number of cells plated; expressed in percentage.
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Absorb |
To take in by chemical or molecular action or use as nourishment in the physiological processes of the plant. |
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Absorption |
The process by which a substance passes from one system into another, e.g., from the soil solution into a plant's root cell or from the leaf surface into the leaf cells.
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Absorption, active |
Movement of ions and water into the plant root as a result of metabolic processes by the root, frequently against an concentration gradient.
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Acaricide |
Acaricides are pesticides that kill members of the acari group, which includes ticks and mites. Acaricides are used both in medicine and agriculture. |
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Accession |
1) An addition (of a variety or strain) to a national or other register of varieties obtained by field collection or exchange. 2) A variety, strain, or population registered at a research center and worth conserving. |
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Accession list |
A reference list of a collection of cultivars, germplasm, or breeding lines that are stored or maintained. |
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Accession number |
The identification number assigned to an accession. |
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Acclimatization |
Acclimatization or acclimation is the process of an individual organism adjusting to change in its environment, allowing it to survive changes in temperature, water, food availability, other stresses and often relates to seasonal weather changes. Acclimatization occurs in a short time (days to weeks) and within an organism's lifetime. |
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Achene |
Small, dry fruit with one seed. |
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Achlorophyllous |
Lacking chlorophyll. |
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Acid equivalent |
The portion of pesticide that is theoretically converted into acid. |
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Acid soil |
If the pH of the soil is less than 7, it is called as acid soil. |
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Acid sulfate soil |
A soil with a pH value of less than 4.0 when air-dried; contains a high amount of sulfate and yellow jarosite mottles. Abnormal growth of plants in this soil is due to (i) toxicity from aluminum, iron, and hydrogen sulfide; and (ii) phosphorus deficiency. |
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Acquired characters |
Phenotypic changes produced on a plant by the environment during the plant's development. Such characters are uninheritable. |
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Actinograph |
An actinograph is an instrument for measuring or estimating the amount of light available, in terms of its ability to expose photographic film. That is, it measures the actinic or chemical intensity of light, as opposed to radiometric or photometric amount of light. |
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Actinomycetes |
1) Bacteria with branching filaments. 2) A nontaxonomic term applied to a group of organisms with characteristics intermediate between the simple bacteria and the true fungi. |
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