Ecology, Environment and Conservation Paper

Vol 26, Issue 2, 2020; Page No.(893-900)

DIAGNOSTICS OF TOLERANCE TO LOW POSITIVE TEMPERATURES OF THE COMMON MILLET COLLECTION DURING THE SEED GERMINATION

Aiman Rysbekova, Elmira Dyussibayeva, Abilbashar Seitkhozhayev, Irina Zhirnova1, Nursaule Zhanbyrshina, Gulden Kipshakbayeva, Yeldos Kulzhabayev and Karina Makhmudova

Abstract

Objectives of the study were the germination response of the initial breeding materials of millet (Panicum miliaceum L.) originating from five countries, their tolerance to the low positive temperatures during germination in vitro and the identification of cold-tolerant samples for further use in the breeding programs. The main problem of proso millet for early spring planting is low-temperature stress at the stage of seed germination. As a result of the laboratory screening, an unequal reaction of the studied millet genotypes by the trait of cold tolerance to low positive temperatures was revealed. The most cold-tolerant samples were K-5786, PI-531413, Zolotistoye kormovoye, Pamiati Bersiyeva, Shortandinskoye-7 and Yarkoye-6, and these genotypes demonstrated the rootlets length comparable with the standard. The mathematical analysis of the interrelation of the average data of seed viability: germination, germination energy, and coleoptiles length of the millet plantlets demonstrated that all of these traits in certain degree correlate depending on the temperature.

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