ABSTRACT
Abstract ................................................................................................... 18 2.1 Introduction .................................................................................... 18 2.2 Material and Methodology ............................................................. 22 2.3 Results and Discussion .................................................................. 24 2.3.1 Plant Height ........................................................................ 24 2.3.2 Panicle Length .................................................................... 25 2.3.3 Number of Spikelets Per Panicle ........................................ 26 2.3.4 Number of Grains Per Panicle ............................................ 27 2.3.5 Grain Mass Per Panicle ...................................................... 28 2.3.6 1000 Grain Mass ................................................................ 29 2.3.7 Studying of F1-F3 Hybrids on
Elements of Yield Structure ............................................... 32 2.4 Conclusion ..................................................................................... 34 Keywords ................................................................................................ 35 References ............................................................................................... 35
ABSTRACT
For hybrids from crossing of oats covered varieties Argamak, Е-1643, Ulov (Russia), Freja, Petra (Sweden) with naked oat variety Torch (Canada) it is established that additive effects prevailed in F1 in the genetic control of traits “plant height,” “number of spikelets per panicle,” “number of grains per panicle,” “grain mass per panicle” and “1000 grains mass”; effects of overdominance prevailed in F2, except of a trait “plant height”. Additive effects prevailed in the control of all traits in F3 that testifies to possibility of effective screening of lines with breeding valuable properties of genotypes. Covered hybrids Freja x Ulov, Е-1643 х Ulov, Е-1643 х Argamak, Ulov х Argamak, and naked hybrids Freja x Torch, Torch x Freja, Torch x Argamak had the best combination of some breeding valuable traits. The greatest number of transgressive forms has been segregated in combinations with participation of varieties E-1643, Ulov, Petra, and Freja. Significantly high mass of grain per panicle (productivity) in comparison with parental naked variety Torch (1.26-0.91 g) was observed in the first – the third generations of naked hybrids Freja x Torch (2.64-1.56 g), Torch x Freja (1.65-1.44), and Torch x Argamak (2.20-1.35).
