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Selection in Medicago sativa for Tolerance to Alfalfa‐Sick Soils of Central Alberta 1
Author(s) -
Goplen B. P.,
Webster G. R.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100040033x
Subject(s) - medicago sativa , agronomy , soil water , forage , biology , cropping , fertilizer , yield (engineering) , selection (genetic algorithm) , environmental science , ecology , agriculture , artificial intelligence , computer science , materials science , metallurgy
Genetic selection against the suspected toxic (“alfalfasick”) soil condition was ineffective. Replicated field comparisons of ‘Sel. Vernal’ and unselected certified ‘Vernal’ on two alfalfa‐sick soils showed no significant difference in forage yield. Yields of four additional varieties also were uniformly depressed by the alfalfasick soils. Fertilizer treatments improved yields somewhat but did not correct the suspected toxic soil condition. Previous cropping to alfalfa appears responsible for the severely depressed growth of alfalfa.