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The Effect of Advance in Generation and Age of Stand on Bacterial Wilt Reaction of Atlantic Alfalfa 1
Author(s) -
Battle Warren R.
Publication year - 1952
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/agronj1952.00021962004400120002x
Subject(s) - battle , agricultural experiment station , citation , bacterial wilt , library science , history , operations research , computer science , agriculture , horticulture , mathematics , biology , archaeology
T HE current increased interest in use of improved alfalfa varieties has created certain problems. Demand for the new varieties has far exceeded the seed supply. It has been necessary to establish extensive programs (1) for the increase and distribution of seed without complete information us to the effect of such programs on varietal characteristics. It is known that natural selection and gene recombination may alter the nature of a genetically variable population. There are few published data as to the rapidity and extent of this action in alfalfa (3). Smith and Graber (2) compared the performance of_ Ranger alfalfa seed lots produced both within and without the variety's primary area of adaptation. They concluded that a tendency toward loss of winterhardiness was shown by southern-grown material, but that the tendency was adequately controlled by existing seed-production regulations. They noted no apparent effect on wilt resistance of the material.