guttation

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Related to guttation: Hydathodes

Fig. 184 Guttation . Transverse section of a saxifrage leaf.

guttation

the emergence of water from the endings of leaf veins, usually occurring at night when TRANSPIRATION is low or absent. Guttation is thus a method of exuding excess water and involves special water pores called HYDATHODES at leaf tips which, unlike normal STOMATA, are not able to control their aperture size. The process is common in low-growing plants such as grasses.

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References in periodicals archive ?

Guttation refers to the process of exudation of liquid droplets,

machinery and mouths of guttation, absorb and retrieve solutes which are

Guttation: mechanism, momentum and modulation

After one or two applications, plants grown in treated soil may produce toxic pollen, nectar and guttation droplets for more than two seasons.

Systemic pesticides: chemicals you can't wash off

This slow exudation of liquid water is called guttation.

Chapter 1 The green plant

Guttation occurs when transpiration is nil, such as under very high relative humidity conditions or at night (Nobel, 1999) (Fig.

Biology and functional ecology of Equisetum with emphasis on the giant horsetails

Shortly after sunrise hoses can be tied between two turf vehicles and dragged across the field to knock dew and guttation off the leaves.

Chapter 17 Integrated pest management

Additionally, guttation and exudation of moisture from leaves is a function of soil moisture and plant water status (Taiz and Zeiger, 1991).

Severity of Gray Leaf Spot in Perennial Ryegrass as Influenced by Mowing Height and Nitrogen Level

guttation The slow exudation of liquid water from the hydathodes of a leaf.

Glossary

In some extant angiosperms, guttation occurs primarily in the young leaves, whereas older leaves do not consistently express guttation (e.

How Paleozoic vines and lianas got off the ground: on scrambling and climbing Carboniferous--early Permian pteridosperms

When considering total dew in turfgrass systems, the possibility of wound exudates or guttation from individual leaves make the potential contribution of plant-generated moisture much more important than in other crops.

Separation and Quantitation of the Sources of Dew on Creeping Bentgrass

For example, many studies show that teeth are strongly associated with the movement of water out of leaves via transpiration and guttation.

A Foliar Morphometric Approach to the Study of Salicaceae

daily dew or guttation fluid removal), a decreased susceptibility of diseased plants to midday wilt when evaporative demand was high.

Assessing irrigation management for its effects on disease and weed levels in perennial ryegrass

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