Green Pea Variety Twinset

The crossing was carried out in 2002. The selection of individual plants was repeated every year from the F2 generation. Yield tests were performed since the F4 generation, the 2 10 m2 yield trials. Breeding line SM 441/02 was included in yield trials in the green maturity (technological maturity) and was sown (sowing density: 1,1 mil of germinating seeds per hectare) with standard varieties. The homogenization process usually takes 3 - 4 years, morphologically different and less efficient lines were excluded during the process. When needed, the reselections from yield trials were carried out. Selections of resistant plants (from F2 generation) to the powdery mildew (Erysiphe pisi) were traditionally done in the field or greenhouse after artificial inoculation with Erysiphe pisi. Selections aimed at obtaining field resistance to foot-rot complex diseases (the most important diseases) in peas were carried out practically since F3 generation using tests in infected soil. The breeding lines were tested since F4 - F6 generation, the repeated tests for resistance to fusarium race 1 and race 2 were done in a the laboratory conditions. The analyses of starch, amylose and resistant starch content were carried out in all lines selected in yield trials. Chlorophyll and carotenoids (lutein and β-carotene) were observed.

Czech Journal of Genetics and Plant Breeding. 2012, 48(1): 46(en)–47(cz) [fulltext]

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