Record Details

Phosphorus uptake and use efficiency of diverse West and Central African sorghum genotypes under field conditions in Mali

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/7320/
http://dx.doi.org/10.1007/s11104-013-1978-4
10.1007/s11104-013-1978-4
 
Title Phosphorus uptake and use efficiency of diverse West and Central African sorghum genotypes under field conditions in Mali
 
Creator Leiser, W L
Rattunde, H F W
Weltzien, E
Haussmann, B I G
 
Subject Sorghum
Agriculture-Farming, Production, Technology, Economics
 
Description Aims
Sorghum [Sorghum bicolor (L.) Moench], a staple crop in West and Central Africa (WCA), is mostly cultivated on soils with low phosphorus (P) availability and thus adaptation to those conditions is vital for food security. Assessment of genotypic variation of WCA sorghum for P uptake and P use efficiency is undertaken to understand the diversity available and opportunities for its use.
Method
We assessed mature plant yield, P uptake and P use efficiency traits of 70 diverse WCA sorghum genotypes under –P (no P fertilization) and + P field conditions in Mali in 2010, to discover differences among all genotypes tested and between and within specific genotype groups.
Results
Large significant genotypic variation for P uptake and P use efficiency traits were observed for all genotypes among and within landrace and researcher bred pools under –P conditions. P uptake traits had a larger genotypic variation than P use efficiency traits. Landrace genotypes showed generally higher P uptake and grain P concentration while formally bred genotypes exhibited a higher P use efficiency. Photoperiod sensitivity was related to higher P uptake.
Conclusion
Genotypic selection for P uptake and P use efficiency traits to improve adaptation to low P soils is possible in sorghum. Use and further study of WCA sorghums for adaptation to low P availability is appropriate as this germplasm shows large variation for P uptake and use efficiency and higher levels of P use efficiency than other important cereals.
 
Publisher Springer
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/7320/1/Plant%20Soil_377_1-2_383%E2%80%93394_2014.pdf
Leiser, W L and Rattunde, H F W and Weltzien, E and Haussmann, B I G (2014) Phosphorus uptake and use efficiency of diverse West and Central African sorghum genotypes under field conditions in Mali. Plant and Soil, 377 (1-2). pp. 383-394. ISSN 1573-5036