Genetic gain from selection and potential for improving alfalfa phosphorus uptake and removal from soils heavily amended with poultry litter

Alfalfa ( Medicago Sativa L.) is increasingly adopted in the southeastern USA as a companion crop in bermudagrass ( Cynodon dactylon L.) pastures, where poultry litter is excessively used as source of N fertilizer. This research explores the extent of genetic variation in phosphorus (P) accumulation...

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Published in:Euphytica 2016-05, Vol.209 (2), p.495-506
Main Authors: Missaoui, Ali M., Young, Joseph
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Biotechnology
Cynodon dactylon
Fertilizers
Genetic research
Life Sciences
Medicago sativa
Plant Genetics and Genomics
Plant Pathology
Plant Physiology
Plant Sciences
Poultry industry
Soil acidity
Soils
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description Alfalfa ( Medicago Sativa L.) is increasingly adopted in the southeastern USA as a companion crop in bermudagrass ( Cynodon dactylon L.) pastures, where poultry litter is excessively used as source of N fertilizer. This research explores the extent of genetic variation in phosphorus (P) accumulation and uptake in alfalfa germplasm grown in a soil heavily amended with poultry waste, and the expected genetic gain from selection for P accumulation and uptake. Eighteen commercial and experimental populations of alfalfa were evaluated in a soil, heavily amended with chicken litter. The soil pH was 6.8 and Mehlich-1 P content was 1039.7 kg ha −1 . Significant genetic variation was observed in P accumulation, forage yield, and P uptake and removal (p 
doi_str_mv 10.1007/s10681-016-1677-3
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subjects Biomedical and Life Sciences
Biotechnology
Cynodon dactylon
Fertilizers
Genetic research
Life Sciences
Medicago sativa
Plant Genetics and Genomics
Plant Pathology
Plant Physiology
Plant Sciences
Poultry industry
Soil acidity
Soils
title Genetic gain from selection and potential for improving alfalfa phosphorus uptake and removal from soils heavily amended with poultry litter
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