Hydroponic experiment for identification of tolerance traits developed by rice Nagina 22 mutants to low-phosphorus in field condition

Autor:	N. Sravan Raju, Stéphane Robin, D. Nageswara Rao, T. Mohapatra, Kuldeep Singh, Amerika Singh, G. Ashok Reddy, S. R. Voleti, Pannaga Krishnamurthy, Ruby Sharma, Poli Yugandhar, M. S. Sheshshayee, Neelamraju Sarla, Madhusmita Panigrahy
Rok vydání:	2013
Předmět:	education.field_of_study Phosphorus Population food and beverages Soil Science chemistry.chemical_element Methane sulfonate Vertisol Biology biology.organism_classification Dry weight chemistry Agronomy Seedling Shoot Cultivar education Agronomy and Crop Science
Zdroj:	Archives of Agronomy and Soil Science. 60:565-576
ISSN:	1476-3567 0365-0340
Popis:	Development of phosphate (P)-deficiency tolerant rice cultivars is constrained by lack of suitable, reproducible, and consistent seedling stage screening methods in breeding programs. This study reports the screening and characterization of M5 mutants derived from an ethyl methane sulfonate treated population of rice cv. Nagina 22 (N22) in low-P field (soil Olsen P 1.94–2.01 mg kg−1; alkaline Vertisol; pH 7.94) for high yield. The present study showed that seedling growth responses such as increase in root weight, root length, root/shoot weight, and dry weight in P-deficient medium can be taken as indices of low-P tolerance in mature plants in field. Total phosphorus content in seedlings showed an inverse relationship with total phosphorus content and low-P tolerance in mature plants in the field. But, phosphorus content in seeds and acid phosphatase activity in the seedling stage were positively correlated with survival and seed set in low-P field. In low-P field, plant height correlated most with yield ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1fef13a264c15bf5f47e323d7914517b https://doi.org/10.1080/03650340.2013.821197 Zobrazit plný text záznamu