Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice

Vista sencilla de ítem
dc.creatorAlvarez, E.I.
dc.creatorDe Datta, S.K.
dc.date1977-05
dc.date2024-12-19T12:57:55Z
dc.date2024-12-19T12:57:55Z
dc.date.accessioned2026-06-27T04:08:40Z
dc.descriptionWe have developed a greenhouse technique by which a chosen soil moisture tension can be maintained continuously. The setup for supplying water at relatively constant soil moisture tension in pots includes five major components—water tank, W‐tube, water distribution system, soil moisture tension sensors, and pots. The W‐tube, which contains a predetermined amount of Hg, controls the soil moisture tension in the pots. Water can flow freely from the tank to the pots through the distribution system whenever the soil moisture tension exceeds that desired. Response to the sensors' demand for water is rapid.We have successfully used this setup to compare relative drought tolerance of rice (Oryza sativa L.) varieties and breeding lines. Another use of this setup might be to measure evapotranspiration (ET) almost instantaneously; the technique might be useful in some soil‐plant‐atmosphere‐water relationship studies.
dc.identifierhttps://hdl.handle.net/10568/167992
dc.identifier.urihttp://hdl.handle.net/123456789/22970
dc.languageen
dc.publisherWiley
dc.sourceAlvarez, E. I.; De Datta, S. K. 1977. Automatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice. Soil Science Soc of Amer J, Volume 41 no. 3 p. 452-454
dc.subjectwater stress
dc.subjectsoil water
dc.subjectdrought resistance
dc.titleAutomatic Feedback Control to Maintain Constant Soil Moisture Tension in the Study of Drought Tolerance in Rice
dc.typeJournal Article

Archivos

Colecciones

Instituto Internacional de Investigación del Arroz (IRRI)