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 Wesenberg, D. M. Articles by Shands, H. L. Search for Related Content PubMed Articles by Wesenberg, D. M. Articles by Shands, H. L. Agricola Articles by Wesenberg, D. M. Articles by Shands, H. L.

Heritability of Oat Caryopsis Percentage and Other Grain Quality Components¹

Three oat (Avena sativa L.) crosses involving parents with a wide range of caryopsis percentage and other grain quality components were studied in F₂, F₃, and F₄. A single backcross was studied in BCF₁ and BCF₂. Primary caryopsis percentage of parents averaged 80.3% for ‘Q.O.30.28,’ 77.1% for ‘RL 2123.38,’ 73.1% for ‘Beedee,’ and 71.5% for ‘Coker 61-13.’

Progeny caryopsis percentages were generally within observed parental values with mean values approximating those of the midparents. The mean of the backcross progenies approached the high caryopsis percentage of the recurrent parent.

Heritability estimates for primary caryopsis percentage by variance components were high with the exception of Q.O.30.28/RL 2123.38 where both parents were high in caryopsis percentage. Heritability estimates ranged from 0.36 for Q.O.30.28/RL 2123.38 to 0.93 for Q.O.30.28/Coker 61-13. Estimates of genetic advance ranged from 0.51 to 3.95%, suggesting that increases above midparent and near high parent values could be attained by selecting for high caryopsis percentage. The data suggest difficulty in isolating segregates with more than 80% caryopsis.

Key Words: Genetic advance • Test weight • Kernel weight • Plump kernel percentage

² Former Research Assistant and Professor of Agronomy, University of Wisconsin, Madison 53706. Present address of the senior author: ARS-USDA, Aberdeen Branch Experiment Station, Aberdeen, Idaho 83210.

Received for publication November 8, 1972.

This article has been cited by other articles:

				D. C. Doehlert, M. S. McMullen, and R. R. Baumann Factors Affecting Groat Percentage in Oat Crop Sci., November 1, 1999; 39(6): 1858 - 1865. [Abstract] [Full Text]