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The Central Scientific Agricultural Library of the Russian Academy of Agricultural Sciences is a Bibliographic Center for Agricultural Science and Industry in Russia

Journal Article

Journal article

Effects of spatial isolation on varietal purity of triticale (x Triticosecale Wittm.) plantings  [2016]

Rubets, V.S.; Pylnev, V.V.; Shtentsel, V.P., Russian State Agrarian Univ., Moscow (Russian Federation);

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A maximum distance of viable triticale pollen transport by wind was studied in the Non-Chernozem Zone of Russia. The experiments were done in Moscow region in 2011-2013. Vital stigmas of the castrated triticale flowers captured viable pollen. The plants were cultivated in vegetative pots which were placed at a certain distance (about 300 m) from the field of flowering triticale. The variant which was placed directly within the field was used as the control of stigma receptivity. The seed set percentage was 60-70% after wind pollination. Plants distanced from the triticale field for 5 m resulted in the seed set percentage among the castrated flowers of 46%, for 25 m - 16%, for 50 m - 2%, for 75, 100 and 150 m - 1%, for 250 m - 0.1%, for 300 m - 0%. Effects of spatial isolation on the triticale varietal purity were estimated in 2014. Stigmas of the triticale flowers with own pollen (without castration) captured viable pollen from air. The plants in vegetative pots were placed similarly from the triticale field. The varietal purity was estimated in progeny of obtained seeds in 2015. The varietal purity of seeds, obtained from plants which were placed directly within the field (92.8%), failed to meet the requirements to triticale seeds (99.5-95.0%); for those which were placed as far as 50 m and farther it was 100%. Triticale pollen can be transported by wind being viable at 250 m distance. The spatial isolation at 50 m is sufficient to keep high varietal purity.

From the journal

Izvestiya of Timiryazev Agricultural Academy

ISSN : 0021-342X