lower plant

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• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

• Plant perception (physiology) — In the study of plant physiology plant perception is a term used to describe mechanisms by which plants recognize changes in the environment. Examples of stimuli which plants perceive and can react to include chemicals, gravity, light, moisture,… …   Wikipedia

• Lower Saxon Wadden Sea National Park — Nationalpark Niedersächsisches Wattenmeer IUCN Category II (National Park) …   Wikipedia

• Plant nutrition — is the study of the chemical elements that are necessary for plant growth. There are several principles that apply to plant nutrition.Some elements are essential, meaning that the absence of a given mineral element will cause the plant to fail to …   Wikipedia

• Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… …   Wikipedia

• plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

• Plant embryogenesis — is the process that produces a plant embryo from a fertilised ovule by asymmetric cell division and the differentiation of undifferentiated cells into tissues and organs. It occurs during seed development, when the single celled zygote undergoes… …   Wikipedia

• Plant anatomy — or phytotomy is the general term for the study of the internal structure of plants. While originally it included plant morphology, which is the description of the physical form and external structure of plants, since the mid Twentieth Century the …   Wikipedia

• Lower Marsh — (formerly known as Lambeth Marsh) is a street that remains on the site of one of the oldest settlements on the South Bank of London, England.Until the early 19th century much of north Lambeth (now known as the South Bank) was mostly marsh. The… …   Wikipedia

• Lower Egypt — is the northern most section of Egypt. It refers to the fertile Nile Delta region, which stretches from the area between El Aiyat and Zawyet Dahshur, south of modern day Cairo, and the Mediterranean Sea.Today there are two principal channels that …   Wikipedia

• Lower Bostraze and Leswidden SSSI — is a biological Site of Special Scientific Interest, located on the Penwith Peninsula, Cornwall, a little to the east of St Just, approximately 8 km west of Penzance. There are two discrete parts of this site Lower Bostraze China Clay Works and… …   Wikipedia