Organic Acid Effects on Nutrient Uptake by Rice

被引：5

作者：

Kopp, Mauricio Marini ^{[2
]}

da Luz, Viviane Kopp ^{[1
]}

de Sousa, Rogerio Oliveira ^{[3
]}

da Maia, Luciano Carlos ^{[1
]}

Sobrinho, Fausto de Souza ^{[4
]}

de Oliveira, Antonio Costa ^{[1
]}

机构：

[1] Univ Fed Pelotas, Dept Crop Sci, Plant Genom & Breeding Center, Pelotas, Brazil

[2] EMBRAPA S Anim Husb & Sheep, Bage, Brazil

[3] Univ Fed Pelotas, Dept Soil Sci, Pelotas, Brazil

[4] EMBRAPA Dairy Cattle, Juiz De Fora, Brazil

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 2012年 / 43卷 / 19期

关键词：

Abiotic stress; genetic resources; Oryza sativa; phytotoxicity; BUTYRIC ACIDS; STRESS TOLERANCE; SOIL SOLUTION; GROWTH; TOXICITY; MUTANT; PLANTS; MATTER; PH;

D O I：

10.1080/00103624.2012.711874

中图分类号：

S3 [农学（农艺学）];

学科分类号：

090104 [作物信息科学与技术];

摘要：

The purpose of this work was to evaluate the responses of 20 rice cultivars to the phytotoxic effects of acetic, propionic, and butyric acids produced in soils under anaerobic conditions. The study was conducted in a hydroponic system, with four levels (0, 3, 6, and 9 mM) of the three organic acids in the ratio of 6: 3: 1 in a factorial of complete randomized block design with three replications. The evaluated variables were phosphorus (P) and potassium (K) contents. The analysis of variance revealed a significant interaction, and the established regressions showed differences among the genotypes as evaluated for both variables. Four genotypes were classified as tolerant in relation to P content and three genotypes as tolerant in relation to K. The best performance was verified with japonica genotypes and the irrigation-based growing system.

引用

页码：2512 / 2520

页数：9

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