Aluminum toxicity in sorghum genotypes as influenced by solution acidity

Autor: Günter R. Findenegg, Willem G. Keltjens, Kezheng Tan

Publikováno v: Soil Science and Plant Nutrition. 39:291-298

The effect of pH on AI toxicity in twelve sorghum (Sorghum bicolor (L.) Moench) genotypes differing in Al sensitivity has been studied in nutrient solution culture. Most of the genotypes showed negative growth response to both Al at 15 μmol L-1 Al a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c822ae955d5700730f9b5945dab5679c
https://doi.org/10.1080/00380768.1993.10417000

Biosynthesis and root exudation of citric and malic acids in phosphate-starved rape plants

Autor: Ellis Hoffland, Günter R. Findenegg, Jaap A. Nelemans, Riki van den Boogaard

Publikováno v: New Phytologist, 122, 675-680
New Phytologist 122 (1992)

summary Rape (Brassica napus L.) plants are efficient users of rock phosphates. This has been ascribed to the excretion of malic and citric acids from the roots during phosphorus deficiency, resulting in a decrease of the pH in the rhizosphere and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aa9e0f1f9cea504c06ea4b2956173ac
https://doi.org/10.1111/j.1469-8137.1992.tb00096.x

Simulation of nutrient uptake by a growing root system considering increasing root density and inter-root competition

Autor: P. A. Leffelaar, Günter R. Findenegg, H. S. Bloemhof, J. A. Nelemans, Ellis Hoffland

Publikováno v: Plant nutrition : physiology and applications : proceedings of the eleventh international plant nutrition colloquium, 30 July-4 August 1989, Wageningen, The Netherlands. Dordrecht: Springer
Plant nutrition : physiology and applications : proceedings of the eleventh international plant nutrition colloquium, 30 July-4 August 1989, Wageningen, The Netherlands
Plant and Soil 124 (1990)
Plant and Soil, 124, 149-155
Plant Nutrition — Physiology and Applications ISBN: 9789401067515

A simulation model is presented which describes uptake of a growth limiting nutrient from soil by a growing root system. The root surface is supposed to behave like a zero-sink. Uptake of the nutrient is therefore determined by the rate of nutrient s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0fb9a77cfdd43fb41ba7308551aa506
https://doi.org/10.1007/bf00009252

Acid soil damage in sorghum genotypes: role of magnesium deficiency and root impairment

Autor: Willem G. Keltjens, Kezheng Tan, Günter R. Findenegg

Publikováno v: Plant and Soil, 139, 149-155
Plant and Soil 139 (1992)

The effects of liming and Mg fertilization on growth, specific root length (root length per unit of root dry weight; SRL) and nutrient uptake of twelve sorghum genotypes (Sorghum bicolor (L.) Moench) were studied in two pot experiments. Liming increa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ce5581183cdeb89128e4e1746f814e5
https://research.wur.nl/en/publications/acid-soil-damage-in-sorghum-genotypes-role-of-magnesium-deficienc

Origin of organic acids exuded by roots of phosphorus stressed rape (Brassica napus) plants

Autor: Ellis Hoffland, J. A. Nelemans, Günter R. Findenegg

Publikováno v: Plant nutrition-Physiology and applications. Dordrecht: Kluwer
Plant nutrition-Physiology and applications
Plant Nutrition — Physiology and Applications ISBN: 9789401067515

To determine the origin of organic acids exuded by the roots of P deficient rape plants, phosphoenolpyruvate carboxylase (PEPC) activity was measured in plants after deprivation of P in the nutrient solution. PEPC activity in the shoot increased as a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::376f24de83853ce2986e4310224ce9d6
https://research.wur.nl/en/publications/origin-of-organic-acids-exuded-by-roots-of-phosphorus-stressed-ra