Authors:
N. N. DYUKOVA, doctor of agricultural sciences, professor,
А. S. KHARALGIN, candidate of agricultural sciences, associate professor,
STATE AGRARIAN UNIVERSITY OF THE NORTHERN TRANS-URALS (7 Respubliki Str., 625003, Tyumen; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Abstract. Considerable attention has been paid to growing partially self-pollinating lucerne varieties and synthetic populations in recent years. In the Northern Trans-Urals lucerne has formed 22–49 % of the beans among the number of observed flowers available for pollinators in free condition. The lucerne seed production largely depends on setting seeds per flower. The best samples set 0.69–0.86 seeds per flower during the research years. The populations differed in their ability to set beans at artificial flower tripping. There are not any fully self-incompatible or fully self-fertile ones among the studied populations. High setting 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 determining the 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-population of self-fertile lucerne in the Northern Trans-Urals must be within 30–45 %. A significant correlation has been observed between self-fertility and fertility at open pollination. The average fertility has increased with self-fertility increase at open pollination. This tendency persisted by research years, although the fertility parameters at open pollinations were significantly lower in 2015 because of less favorable pollination weather conditions. The selection of self-fertile plants in the population will ensure the essential grow of seed production.
Keywords: open pollination, tripping, seed production, setting of seeds and beans, lucerne.
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