Використання показника теплостійкості насіння пшениці м’якої озимої для оцінки врожайних властивостей / Using heat tolerance sndex of bread winter wheat seeds
Journal Title: Вісник Львівського національного аграрного університету. Агрономія - Year 2018, Vol 22, Issue
Abstract
To study the dependence of tolerance index of bread winter wheat seeds on the varietal characteristic, abiotic and anthropogenic factors. Laboratory (determining seed vigor and laboratory germination); mathematical (for assessing the reliability of research results). The highest heat tolerance index of seeds was marked in varieties: Podolianka, Pereiaslavka, Remeslivna, Myronivska rannostyhla, Natalka, Myrliena, Myronivska storichna, Yuviliar Myronivskyi, Oberih Myronivskyi, Horlytsia myronivska, Berehynia myronivska, Hospodynia myronivska. The seeds being grown with no mineral fertilizer after predecessors black fallow, peas, and perennial grasses had high heat tolerance index (72–79 %), and after predecessors silage corn and winter wheat their heat tolerance index increased by 8 and 12 % when applying fertilizers at doze N120P80K80. When warming seeds, high indices of seed vigor and laboratory germination were noted in the variants of application plant protection products and micronutrient fertilizers during springsummer period, as compared to untreated ariants. Experimentally it was edtablished that heat tolerance of winter wheat seeds depends on the varietal characteristics and the influence of abiotic and anthropogenic factors. These data indicate the possibility of using thermo-testing method for a more objective assessment of sowing qualities. As we cjnsider, it is necessary to carry out comprehensive studies on seeds grown in various soil and climatic zones by common methods,thus making it possible to obtain vast experimental for studying development and producnivity of plants derived from various quality seeds and to develop a test system of forecasting yield properties of seeds.
Authors and Affiliations
A. Siroshtan, V. Kavunets
Keywords
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