Study of Self-Fertilization of Alfala Medicago L. in Northern Trans-Urals

DOI

10.2991/agrosmart-18.2018.27How to use a DOI?

Keywords

free pollination, tripping, auto-tripping, self-compatibility, self-incompatibility

Abstract

In our research, 27-29% of alfalfa plants formed beans during self-pollination in the I_1 -I_2 generations. At the same time, there was an increase in the number of plants that bound the beans under insulators in a closed flower without auto-tripping. This means that it is possible to obtain alfalfa seeds without the intervention of pollinators. The studies revealed a number of important points in the biology of alfalfa. First, no plants, in which all the flowers would open themselves, were found. Secondly, in subsequent generations, the number of plants that would not completely open flowers (24.3% in the first, to 18.6% in the third generation of inbreeding), sharply decreased. It was found that both self-fertile and self-sterile plants exhibit auto-tripping. Breeding alfalfa in the Northern Urals should be aimed at creating self-fertile lines that would have high seed fertility, and at the same time, flowers that preserve the allogamic type of pollination. At first, the flowers do not open and only a week later, as a result of self-disclosing or self-fertilization, beans form in an undisclosed state. In this case, the possibilities of allogamy are used with the help of insects (if available), and in their absence, seed productivity is maintained due to high fertility during self-pollination. The alternation of allogamy with partial inbreeding will allow vegetative and seed productivity, resistance to diseases and pests, the intensity of growth and other economically valuable traits to be combined in new varieties of alfalfa.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - N.N. Dyukova
AU  - A.S. Kharalgyn
PY  - 2018/12
DA  - 2018/12
TI  - Study of Self-Fertilization of Alfala Medicago L. in Northern Trans-Urals
BT  - International scientific and practical conference "AgroSMART - Smart solutions for agriculture" (AgroSMART 2018)
PB  - Atlantis Press
SP  - 140
EP  - 144
SN  - 2352-5401
UR  - https://doi.org/10.2991/agrosmart-18.2018.27
DO  - 10.2991/agrosmart-18.2018.27
ID  - Dyukova2018/12
ER  -