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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.

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A union of a hypha or vessel with another resulting in exchange of their contents. Fusion of hyphal cells of fungi involving the cell wall or cytoplasm.


Study of the internal structure of living beings.


Descriptive of an ovule in which the body is bent backward along the funiculus and adnate to it.


The stamens are called an androecium.


The development of a haploid individual from a pollen grain or microspore.


An anemometer is a device for measuring wind speed.


To immobilize.


An individual with a chromosome number that is not an exact multiple of the haploid chromosome complement. - An individual with a chromosome number that is not an exact multiple of the haploid chromosome complement.


The flowering plants (angiosperms), also known as angiospermae or magnoliophyta, are the most diverse group of land plants. In addition to gymnosperms, they are the only extant groups of seed producing plants, but they can be distinguished from the gymnosperms by a series of synapomorphies (derived characteristics). These characteristics include flowers, endosperm within the seeds, and the production of fruits that contain the seeds.

Anisomeric genes

Several genes that have one directional and unequal effects. Their expressivity and heritability are intermediate between those of major genes and polygenes.


Formation of fully or partially double-stranded DNA molecules from complimentary single stranded molecules.

Annual weed

Annual weeds grow and mature within a year of their germination; more commonly in one season itself. New plants of such weeds regenerate in the next season from additional seeds present in the soil. An annual weed can either be a summer annual or a winter annual, depending upon part of the year when it puts forth its major growth.

Antagonistic symbiosis

A symbiotic association which is destructive to one of the symbionts or partners involved in the association.

Antenna (insects)

A movable segmented appendage occurring in pairs on the head of an insect.

Antennal base

A fixed area around the point of origin of the antenna.


Any area before or preceding a node in an insect's wing.


The saclike structure of the male part (stamen) of a flower in which the pollen is formed. Anthers normally have two lobes or cavities that dehisce at anthesis and allow the pollen to disperse.

Anther culture

In vitro culture of anthers or microspores which allows the production of homozygous diploid (doubled haploid) plants. Anter culture is the process of using anthers to culture haploid plantlets. The technique was discovered in 1964 by Guha and Maheshwari. This technique can be used in over 200 species including rice, tomato, tobacco, barley, and geranium.

Anther sac

A pocket-shaped unit containing pollen. In many plants, the anther has two lobes, each with two pollen sacs.


The action or period of opening of a flower; the period of pollination, specifically the time when the stigma is ready to receive the dispersed pollen and fertilization takes place.


Anthocyanins are water-soluble vacuolar pigments that may appear red, purple, or blue according to pH. Anthocyanins occur in all tissues of higher plants, including leaves, stems, roots, flowers, and fruits.


Pertaining to an aquic soil moisture regime induced by human action such as bunding and leveling of land, or irrigation.


Anti-transpirants are compounds applied to the leaves of plants to reduce transpiration. They are used to preserve and protect plants from drying out too quickly and used to protect leaves from salt burn and fungal diseases.


Antibiosis is a biological interaction between two or more organisms that is detrimental to at least one of them.


A chemical substance produced by certain microorganisms that retards or inhibits the growth of other micro-organisms.


A protein produced in a warm-blooded animal in reaction to an injected foreign antigen and capable of reacting to that antigen.

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