Home – Home – Jornals – Flora and Vegetation of Asian Russia 2022 number 3

We studied the seed set of a perennial herbaceous short-rhizome polycarpic plant Galeobdolon luteum (yellow archangel) in open pollination and various options of mechanic pollination (bag directly, parthenogenesis test, cross pollination). Our surveys were carried out in 2020-2022 according to generally accepted methods in natural conditions of the Moscow region. It has been shown that G. luteum produces from 48 to 128 ovules and from 10 to 108 completed seeds per one shoot. In natural pollination, we found only two variants of coenobia (schizocarpic fruit): completed seeds are not formed in the fruit at all, or the fruit includes 4 fully formed nutlets. Our studies did not reveal the ability for apomictic seed setting in this species. In flowers of G. luteum, autogamous pollination is possible with rather sharp and significant fluctuations of flowers under the influence of various environmental factors (gusts of wind, raindrops, etc.). It was revealed that within the inflorescence of G. luteum, with simultaneous flowering of several flowers, geitonogamy is possible due to the presence of a self-compatibility system and visiting flowers by pollinating insects. In abundant cross pollination, the seed set of G. luteum is higher than in open pollination, which is due to the ingress of a larger number of pollen grains on the stigmas of flowers than with insufficient pollination carried out by insects.