HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Schipper, H. Articles by Frey, K. J. Search for Related Content PubMed Articles by Schipper, H. Articles by Frey, K. J. Agricola Articles by Schipper, H. Articles by Frey, K. J.

Observed Gains from Three Recurrent Selection Regimes for Increased Groat-Oil Content of Oat

Vanderhave Research, P.O. Box 1, 4410 AA Rilland, the Netherlands
Dep. of Agronomy, Iowa State Univ., Ames, IA 50011.

^* Corresponding author.

Increasing the groat-oil content (GO) of aot (Avena sativa L.) could increase the profitability of oat when grown as an oilseed crop or for high-energy feed grain. In this study, three recurrent selection regimes for increasing GO of oat were evaluated and compared with predicted responses. For Regime 1, selection for GO was practiced among S₀ plants grown in the field; for Regime 2, selection occurred among S₀ plants grown in the greenhouse; and for Regime 3, selection among field-grown S₀ plants was followed by selection among among and within S_0:1 progenies grown in the greenhouse. Gains from selection for GO via the three regimes were evaluated in field experiments by using random lines from each selection for GO via the three regimes were evaluated in field experiments by using random lines from each selection cycle of each regime. Groat-oil contents increased significantly in Regimes 1 and 3, but not in Regime 2. Annual gains in GO were 6.04, 5.85, and 11.98 g kg^-1 in Regimes 1, 2, and 3, respectively, whereas the predicted gains were 9.69, 4.92, and 11.60 g kg^-1, respectively. Selection among S₀ in the field and among and withing S_0:1 progenies in the greenhouse both contributed to the increased GO in Regime 3. In each regime, the genetic variance of GO remained significant. Line M022-4-5 with a mean GO of 162.85 g kg^-1 had the largest GO in the evaluation experiment. Selection for groat-oil content on the basis of data from greenhouse-grown oat plants can be successfully incorporated into a recurrent selection program.

Received for publication February 7, 1991.

This article has been cited by other articles:

				K.J. Frey and J.B. Holland Nine Cycles of Recurrent Selection for Increased Groat-Oil Content in Oat Crop Sci., November 1, 1999; 39(6): 1636 - 1641. [Abstract] [Full Text]