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The role of tolerant genotypes and plant nutrients in the management of iron toxicity in lowland rice

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Relation http://oar.icrisat.org/4585/
http://dx.doi.org/10.1017/S002185960007307X
 
Title The role of tolerant genotypes and plant nutrients in the management of iron toxicity in lowland rice
 
Creator Sahrawat, K L
Mulbah, C K
Diatta, S
Delaune, R D
Patrick Jr, Delaune
Singh, B N
Jones, M P
 
Subject Food and Nutrition
Fertilizer Appications
 
Description Iron toxicity is a nutrient disorder associated with high concentrations of iron in soil solutions. Deficiencies of other nutrients, such as P, K, Ca, Mg and Zn, have been implicated in its occurrence in rice plants. Field experiments were carried out in 1992 and 1993 in Ivory Coast to evaluate the iron toxicity tolerance of promising rice cultivars available in West Africa, and to provide additional information for selecting breeding materials. Two sites, differing in their potential to cause iron toxicity, were used. Glasshouse and field studies were also conducted to test the role of other nutrients in the occurrence of iron toxicity. The results showed that genetic tolerance to iron toxicity can significantly improve rice production in iron-toxic soils, with some cultivars producing yields in excess of 5 t/ha. The application of N, P, K and Zn in the field decreased the uptake of iron in rice tops, and this can be a significant factor in the iron-toxicity tolerance of the cultivars.
 
Publisher Cambridge University Press
 
Date 1996
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4585/1/Journal_of_Agricultural_SCience_Cambridge_126_143-149_1996.pdf
Sahrawat, K L and Mulbah, C K and Diatta, S and Delaune, R D and Patrick Jr, Delaune and Singh, B N and Jones, M P (1996) The role of tolerant genotypes and plant nutrients in the management of iron toxicity in lowland rice. Journal of Agricultural Science, 126 (2). pp. 143-149. ISSN 0021-8596