THE INFLUENCE OF LOWER TEMPERATURES ON FORMATION OF SHOOTS OF RICE

Original title

ВЛИЯНИЕ ПОНИЖЕННЫХ ТЕМПЕРАТУР НА ПОЛУЧЕНИЕ ВСХОДОВ РИСА

Authors

M.A. Skazhennik, N.V Vorobyov, V.S. Kovalyov, S.V. Garkusha, T.S. Pshenitsyna, I.V. Balyasny

Contact information

All-Russian Rice Research Institute, Russia, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

Pages

708-711

DOI

10.31255/978-5-94797-319-8-708-711

Abstract

The use of high-quality seeds for sowing cereals is one of the important factors for obtaining optimum density of shoots, ensuring the formation of a high yield of these crops. The objective of the research is determination of field germination of rice varieties and establish its relationship with germination power and seedlings power at low temperature of 14 ºC. The material of research were 6 rice varieties; different by germination, by germination power and by seedling power – Rapan (standard), Vizit, Sonet, Kurazh, Sonata, Atlant. The studies were carried out in two tests: in the laboratory – in the chambers with low temperatures and in vegetative-microfield tests in ferroconcrete micro-check plots, filled with soil from rice check plots, in which rice irrigation mode was used under field conditions. In the first experiment the seed germination power was determined on moistened filter paper at a constant temperature of 28 and 14 ° C for 3 and 6 days, the height of seedlings in cm for 13 days at 14 ºС, their dry weight per 100 units for 18 days. In the second experiment, rice sowing was carried out in early may, the average temperature of this month was 17.8 ºC. Seeds were sown in the soil to a depth of 0.5 cm and determined their germination. The results of tests of field germination of different rice varieties obtained in vegetation triads at mid temperature 17.8 ºC and their relationship with germination power at 28 and 14 ºC. It was determined that rice varieties differ by field germination, which have close connection with germination power, with seedling mass and seedling density under the conditions of low temperature.