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The fruiting of 23 apple progenies, in total 756 genotypes grafted on M 9 rootstock, was evaluated for 11 years (2005–2015). The most precocious was the progeny obtained by the crossing of genotype HL...
The present paper deals with data obtained from fifteen years old Norway spruce (Picea abies [L.] Karst.) progeny test established at three sites in the Sázava River region. Parameter under the evalua...
The occurrence of powdery mildew after heavy spontaneous infections was evaluated on 2,500 apple seedlings of 54 progenies that were derived from crosses made in 1993 and 1994. At the same time, the r...
The protein contents of the grain of 50 interspecific progenies developed from the cross between WAB56-104, an Oryza sativa variety, and CG 14, an Oryza glaberrima line, were investigated. In contrast...
The factors causing distorted segregation of primin secretion phenotypes in Primula obconica were studied. 1. In reciprocal crossing between F1 (primin-free×primin-secreting) plants and primin-free c...
Reciprocal crossing between tetraploids and octaploids of Dendranthema yoshinaganthum Kitam. were performed. Tetraploid × tetraploid was compatible, but no seedlings were obtained from octaploid × oct...
We analyzed fruit and seed sets after self-pollination in 3 apple cultivars. Between 1998 and 2001, we carried out self-pollination of cultivars ‘Megumi’, ‘Orin’ and ‘Fuji’, which exhibit different le...
Papaya cultivated variety CO 2 (Carcia papaya) was crossed with its wild relative Carica candamarcensis which have the desirable character of cold tolerance. The parents and their progenies were anal...
Marker-assisted selection is progressively introduced into potato breeding especially in the case of monogenically inherited traits. Varieties and clones with extreme resistance to potato virus Y (PVY...
A study was carried out to improve anther culture ability of the non-responsive cultivated oat, Avena sativa L. cv. Puhti by introgressing favourable alleles from the responsive wild red oat, Avena st...
The influence of habit form on progeny growth was studied within the evaluation of the height growth of curly birch hybrid progenies. In all years 1998, 1999 and 2001 statistically significant diffe...

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