Agronomy and Horticulture, Department of
Department of Agronomy and Horticulture: Faculty Publications
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Document Type
Article
Date of this Version
November 1968
Abstract
Two controlled environment experiments were designed to study the effect of photoperiod and a cold treatment on rhizome and tiller development of ‘Merion’ and ‘Windsor’ Kentucky bluegrass (Poa pratensis L.) Evidence is given to support the following conclusions:
1. A cold treatment is not essential for rhizome formation. Cold treatments increased tillering but reduced the number of rhizomes.
2. Both initiation and elongation of rhizomes were favored by a 16 or 18-hour photoperiod when compared to a 8- or 12- hour photoperiod.
3. Tillering showed little response to initial photoperiod, although more tillers were formed with a 12-hour than with an 8- or 18- hour photoperiod in one experiment.
4. Windosr generally produced more and longer primary and secondary rhizomes than Merion but the latter tillered more profusely than Windsor.
Comments
Published in Agronomy Journal VOL. 60, NOVEMBER-DECEMBER 1968. Copyright © 1968 American Society of Agronomy. Used by permission.