Growth study of rice genotypes to varying levels of aluminum

Abstract

The investigation was carried out to study the growth of seven rice genotypes (Oryza sativa L.) under different levels of aluminum in the stress physiology laboratory, Department of Crop Physiology, Assam Agricultural University. Results obtained from the investigation revealed that higher levels of aluminum significantly influenced the growth of the genotypes. However, some tolerant genotypes viz. Rajamani and Rene Nepung Aam showed a better performance than the other genotypes by maintaining the Leaf area index, Specific leaf weight, Root biomass accumulation and other yield attributing characters (Panicle weight, Harvest index). Considering all these characters Rajamani and Rene Nepung Aam may be considered as tolerant genotypes under high aluminium conditions.