eprintid: 8908
rev_number: 14
eprint_status: archive
userid: 1305
dir: disk0/00/00/89/08
datestamp: 2015-08-06 11:04:08
lastmod: 2016-08-31 08:15:33
status_changed: 2015-08-06 11:04:08
type: article
metadata_visibility: show
creators_name: Leiser, W L
creators_name: Rattunde, H F W
creators_name: Piepho, H P
creators_name: Weltzien, E
creators_name: Diallo, A
creators_name: Toure, A
creators_name: Haussmann, B I G
icrisatcreators_name: Rattunde, H F W
affiliation: State Plant Breeding Institute, Univ. of Hohenheim (Stuttgart)
affiliation: ICRISAT (Bamako)
affiliation: Institute of Crop Science, Bioinformatics Unit, Univ. of Hohenheim (Stuttgart)
affiliation: L’Institut d’Economie Rurale (Bamako)
affiliation: Institute of Plant Breeding, Seed Science and Population Genetics, Univ. of Hohenheim (Stuttgart)
country: Germany
country: Mali
title: Phosphorous Efficiency and Tolerance Traits for Selection of Sorghum for Performance in Phosphorous-Limited Environments
ispublished: pub
subjects: s1.4
divisions: D4
crps: crp1.4
full_text_status: public
keywords: Phosphorous Efficiency; Sorghum; West Africa; Field Trials; Genetic Variation; Phosphorous Soils
note: The staff of the Sorghum Breeding Program at the International Crops Research Institute for the Semi-Arid Tropics in Mali and of the Institut d‘Economie Rural in Mali who conducted the trials in this study, the financial support of the McKnight Foundation Collaborative Crop Research Program, the Generation Challenge Program and the German Federal Ministry for Economic Cooperation and Development (BMZ) are gratefully acknowledged. Further, we sincerely thank the Sorghum Breeding Program of the Institut de l’Environnement et des Recherches Agricoles in Burkina Faso for providing several genotypes for this study. The work was undertaken as a part of the CGIAR Research Program on Dryland Cereals.
abstract: Sorghum (Sorghum bicolor (L.) Moench) is widely cultivated in West Africa (WA) on soils with low phosphorus (P) availability. Large genetic variation for grain yield (GY) under low-P conditions was observed among WA sorghum genotypes, but information is lacking on the usefulness of P-tolerance ratios (relative performance in –P [no P fertilizer] vs. +P [with P fertilizer] conditions) and measures of P-acquisition and internal P-use efficiency as selection criteria for enhancing GY under low-P conditions. We evaluated 70 WA sorghum genotypes for GY performance under −P and +P conditions for 5 yr in two locations in Mali and assessed P acquisition (e.g., P content in biomass) and P-use efficiency (e.g., grain produced per unit P uptake) traits under −P and +P conditions in one site in 2010. Significant genetic variation existed for all P-tolerance ratios across multiple sites. Photoperiod-sensitive landrace genotypes showed significantly better P tolerance and less delay of heading under P-limited conditions compared with photoperiod-insensitive varieties. Genotypic correlations of P-tolerance ratios to GY under −P were moderate. Phosphorous acquisition and P-use efficiency traits independent of harvest index were of similar importance for GY under −P conditions in statistically independent trials. However grain-P and stover-P concentrations from one −P trial showed only weak correlations with GYs in statistically independent trials. Highest predicted gains for −P GY were obtained by theoretical index selection based on −P GY combined with P-use efficiency traits (e.g., low-grain P concentration). Such index selection is expected to achieve both increased sorghum productivity and P sustainability in the P-limited WA production systems.
date: 2015-03-27
date_type: published
publication: Crop Science
volume: 55
number: 3
publisher: Crop Science Society of America
pagerange: 1152-1162
id_number: 10.2135/cropsci2014.05.0392
refereed: TRUE
issn: 0011-183X
official_url: http://dx.doi.org/10.2135/cropsci2014.05.0392
related_url_url: https://scholar.google.co.in/scholar?hl=en&q=Phosphorous+Efficiency+and+Tolerance+Traits+for+Selection+of+Sorghum+for+Performance+in+Phosphorous-Limited+Environments&btnG=
related_url_type: pub
citation:   Leiser, W L and Rattunde, H F W and Piepho, H P and Weltzien, E and Diallo, A and Toure, A and Haussmann, B I G  (2015) Phosphorous Efficiency and Tolerance Traits for Selection of Sorghum for Performance in Phosphorous-Limited Environments.  Crop Science, 55 (3).  pp. 1152-1162.  ISSN 0011-183X     
document_url: http://oar.icrisat.org/8908/1/Environments.pdf