caa a22 4500 477135188 CHVBK 20180405111715.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002996911256 doi (NATIONALLICENCE)springer-10.1023/A:1002996911256 Genetics of grain yield and other agronomic characters in t'ef (Eragrostis tef Zucc. Trotter). I. Generation means and variances analysis [Elektronische Daten] [Hailu Tefera, W.E. Peat] Quantitative genetics of grain yield and other agronomic characters of t'ef (Eragrostis tef) were studied using the F1, F2, BC1, and BC2 of the cross Fesho × Kay Murri. The study was carried out to estimate gene effects controlling the inheritance of grain yield and related agronomic characters. Significant additive [d] and dominance × dominance [l] interaction effects were detected for grain yield. The variations of yield per panicle and panicle weight were explained in terms of [d], dominance [h], and additive × additive [i] interactions. Non-allelic gene interactions were also detected for kernel weight, harvest index, tiller number, plant height, days to heading and days to maturity. The simple additive-dominance model explained the variation for panicle length, culm diameter and plant weight, allowing unbiased estimates of additive (D) and dominance (H) variance components. Large dominance variances (H) were estimated for grain yield, yield per panicle, and panicle weight. The additive variances for plant height, panicle length, days to heading and days to maturity were higher than the respective dominance variances. High narrow-sense heritability (h2) values (> 0.50) were estimated for plant height, panicle length, days to heading and days to maturity. The lowest h2 (0.09) was obtained for kernel weight for which there was little variability. Since grain yield and several important agronomic characters of t'ef are influenced by non-allelic gene interaction, it is advisable to delay selection for yield to later generations with increased homozygosity. Kluwer Academic Publishers, 1997 epistasis nationallicence Eragrostis tef nationallicence generation means nationallicence grain yield nationallicence heritability nationallicence t'ef nationallicence Tefera Hailu Department of Biological Sciences, Wye College, University of London, TN25 5AH, Ashford, Kent, UK aut Peat W.E. Department of Biological Sciences, Wye College, University of London, TN25 5AH, Ashford, Kent, UK aut Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 185-191 0014-2336 96:2<185 1997 96 10681 https://doi.org/10.1023/A:1002996911256 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002996911256 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tefera Hailu Department of Biological Sciences, Wye College, University of London, TN25 5AH, Ashford, Kent, UK aut NATIONALLICENCE 700 1- Peat W.E. Department of Biological Sciences, Wye College, University of London, TN25 5AH, Ashford, Kent, UK aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 185-191 0014-2336 96:2<185 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 477135188 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer