The reproduction of Yucca carnerosana (Trel.) McKelvey in Crimea

International Jubilee Scientific and Practical Conference "Innovative directions of development of the forestry complex"

生态环境科学

Maksimov, A.P.^1 ; Kovalev, M.S.^2 ; Trikoz, N.N.^3 ; Gil, A.T.^2

Laboratory of Forest Science, Nikitsky Botanical Gardens, National Scientific Center of the RAS, 52 Nikitsky spusk street, Nikita village, Yalta City

298648, Russia^1

Laboratory of Phytomonitoring, Nikitsky Botanical Gardens, National Scientific Center of the RAS, 52 Nikitsky spusk street, Nikita village, Yalta City

298648, Russia^2

Laboratory of Plant Protection, Nikitsky Botanical Gardens, National Scientific Center of the RAS, 52 Nikitsky spusk street, Nikita village, Yalta City

298648, Russia^3

关键词: Artificial pollinations;    Endemic species;    Geitonogamy;    Germination energy;    Ornamental crops;    Seed viability;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/226/1/012029/pdf
DOI  :  10.1088/1755-1315/226/1/012029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Seed reproduction and bio-ecology of the genus Yucca (Yucca L.) species promising open ground ornamental crops for the South of Russia are of great importance for the Southern Coast of the Crimea (SCC). At homelands Yucca Carnerosana (Yucca carnerosana (Trel.) McKelvey)has an obligate mutualism and is closely tied to a specific pollinator, which is an endemic species of moth Tegeticula yuccaselia C.V. Riley. Under the conditions of introduction due to the lack of moths Yucca species bloom, but do not bear fruit. In the period from 1984 to 2014, works on artificial pollination of flowers Y. Carnerosana were conducted using the method invented in 1989 (RU Patent 1470245). The real productivity of seeds in fruits is 70..80% of the potential one. The average class of seeds' development ranges from 3.57 to 3.63. The embrio-spectra development of seeds is given. Germination, germination energy and seed viability, calculated according to the formulas, are directly dependent on the index of Cave and reflect the potential possibility of obtaining seed reproduction. Statistics of endogenous variability in seed of Y. Carnerosana obtained by the way of autogamy and mixed geitonogamy are given. The main species of Yucca pests in the parks of the SCC region are identified and the measures to combat them are described.