Аграрный вестник Урала № 02 (156) 2017Биология и биотехнологии
ASPECTS OF LUCERNE SEED PRODUCTION IN THE NORTHERN TRANS-URALS
Considerable attention has been paid to growing partially self-pollinating lucerne varieties and synthetic populations inrecent years. In the Northern Trans-Urals lucerne has formed 22–49 % of the beans among the number of observed flowersavailable for pollinators in free condition. The lucerne seed production largely depends on setting seeds per flower. The bestsamples set 0.69–0.86 seeds per flower during the research years. The populations differed in their ability to set beans at artificialflower tripping. There are not any fully self-incompatible or fully self-fertile ones among the studied populations. Highsetting of beans (38–47 %) at artificial flower tripping has been marked in the following populations: Verneuil, Ellerslaie I,Bystraya, Palava, Vela, Omskaya 7. The conclusions on the self-fertility of populations will be incomplete without determiningthe number of seeds per tripped flower. According to this indicator, the following samples have been specified: Ellerslaie I,Verneuil, Bystraya, Resistador. The marked populations had 0.89–1.14 seeds per flower tripped. Thus, the average-populationof self-fertile lucerne in the Northern Trans-Urals must be within 30–45 %. A significant correlation has been observedbetween self-fertility and fertility at open pollination. The average fertility has increased with self-fertility increase at openpollination. This tendency persisted by research years, although the fertility parameters at open pollinations were significantlylower in 2015 because of less favorable pollination weather conditions. The selection of self-fertile plants in the population willensure the essential grow of seed production.
open pollination, tripping, seed production, setting of seeds and beans, lucerne
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