V. Valkova*, N. Petrovska Maize Research Institute, 5835 Knezha, Bulgaria (Manuscript received 6 June 2016; accepted for publication 18 August 2016) Abstract. The study shows the results of a preliminary evaluation of the combining ability for grain yield of 17 mutant maize lines. For

Abstract. The general combining ability (GCA) and specific combining ability (SCA) of twenty-six middle early maize lines was studied by Savchenko’ method. The lines were tested on three testers, with origin of two genetic groups: ХМ 98 40 and КС 05 7 of SSS и ХМ 87 15 of Lancas

N. Tsenov, D. Atanasova, I. Stoeva, E. Tsenova Abstract. State and Aims: In the wheat breeding of Bulgaria foreign varieties or samples with excellent grain quality are used as parents. The most important indices of the quality of promising breeding lines obtained with participation o

I. Results of the first cycle in synthetic “1/2005” N. Petrovska, V. Valkova Abstract. The present study shows the results of a completed first cycle of recurrent selection in a middle late synthetic population “1/2005” and the inbred line PAU 1617 is used as a recurrent parent. The a

I. Grain productivity N. Tsenov, T. Petrova, E. Tsenova Abstract. Situation and aims. This investigation was carried out with the aim to determine the suitability of some Ukrainian wheat cultivars for improvement of the productivity of the Bulgarian ecotype of winter wheat. The econom

V. Valkova Abstract. General Combining Ability (GCA) and Specific Combining Ability (SCA) of sixteen newly stabilized early maize lines were evaluated by Savchenko’s method (1978). The lines were tested in five testers by different genetic groups, possessing established high gen

N. Petrovska Abstract. In the partial system of diallele crosses by Savchenko (1973) eleven mid-late maize lines which belong to two genetically different groups – SSS and Lancaster are involved for study of Combining Ability of grain yield. The hybrids obtained from these lines