Germplasm Plants intended for use in breeding or conservation programmes

Glucose 1. The common sugar produced in plants. 2. A group of carbohydrates, crystallizable and soluble in water, occurring in fruits, as grape sugar. 3. A commercial term for syrups made from starch or gain.
Empirical formula: C6H12O6. White crystalline sugar; somewhat less sweet-tasting than sucrose (table sugar), it is found in fruits and honey. Glucose is the major source of energy in animal metabolism. It requires no digestion prior to absorption into the bloodstream. A monosaccharide (also see carbohydrate), glucose can be obtained by hydrolysis of a variety of more complex carbohydrates, e.g., maltose, cellulose, or glycogen. It is commercially made from cornstarch (see starch) and is used in sweetening candy, chewing gum, jellies, and various foods. Glucose present in urine may be a symptom of diabetes.

Halophyte A plant that can grow in a saline habitat.(kelp? - karmaxul)

Haustorium 1. An absorptive structure of a fungus mycelium or a modified root or shoot of a higher plant which serves as an attachment to obtain food through penetration of the host cells. 2. The foot of the embryo of a fern.

Heterosis Cross-fertilization, hybrid vigor, the increased growth vigor exhibited by a hybrid.
Refers to the phenomenon in which the Fl hybrid obtained by the crossing of two genetically dissimilar parents shows superiority over the best standard check prevailing at that time in one or a combination of characters.

Heterozygous Possessing both the dominant and the recessive genes of an allelomorphic pair.

Homozygous Having both parents transmit identical genes for a particular character, being genetically pure (for pairs of genes).

Hybrid The offspring of two different varieties, species, or genera; a heterozygote.

Hybrid vigour The increased vigor of a hybrid when it is greater than that of either of the parents.

Hybridization 1. The result of crossing of more or less dissimilar parents. 2. The act or process of hybridization.

hydromorphic Denoting areas with waterlogged soils (Grims Droopy-karmaxul)

Hypodermis hypo + dermis; The tissue just beneath the epidermis which serves to strengthen itself.

Inbreeding 1. In plants, self-fertilization (the most efficient and rapid method to produce homozygous genes to obtain a pure line). (result-karmaxul)

Inbreeding depression The reduction in vigor often observed in progeny from matings between close relatives. Inbreeding depression is due to the expression of recessive deleterious alleles and is usually severe in open-pollinated outcrossing species that occur in fairly high population densities.

Internode inter + nodus; The space between nodes or phalanges. See illustration morphology of grass plants (not posting the pic Im on a role everyone should know this one anyway)

Introgression The movement of genes from one population into another through hybridization followed by backcrossing. Usually refers to movement of genes from one species to another or among sub-species that have been geographically isolated then brought back together by changes in the species ranges or planting of exotic populations.

Lamina 1. A layer.
2. The blade or extended part of a leaf, the leafy portion or blade of the frond above, and attached to the petiole.

Lateral roots Lateral roots are the side roots which originate from the tap root. Lateral roots are mainly found only in the dicotyledonous plants.

Leaf area index The area of leaves exposed over a unit area of land surface.

Leaf scar The scar left on the twig at the point where a leaf has fallen. It is usually covered with a thin layer of corky tissue, periderm.

Leaflet One of the component parts of a compound leaf blade.

Lignified Lignified means that high amounts of the natural "cement" called ligninis deposited within the cellulose strands in the cell walls. This makes the cell walls very tough. Having tough, lignified cell walls is a unique feature of trees.Keslick (1997)

Lignin The substance which is deposited in cell walls to produce woody tissue, a secondary deposit which forms the greater part of the bulk of ordinary wood, lignine.

Lipase The enzyme which splits fats.

Lipoprotein Compounds found in membranes composed of protein and fats.

Locus 1. The position of a gene on a chromosome in a linkage group or on a chromosome map.

Meristem The undifferentiated formative or generative cells of plants which give rise to daughter cells capable of further division, the cells found in the cambium or growing points capable of further development.

Mesocarp The middle layer (between the endocarp and the exocarp) of the pericarp which consists of three layers. See illustration of cross section of fruits. ( wasnt sure if I should put in this picture but I need a bowl break and did not want to loose any info)