Grain yield response of facultative and winter triticale for late autumn sowing in different weather conditions
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Kuupäev
2020
Kättesaadav alates
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Kirjastaja
Abstrakt
Climate change is affecting the growing conditions of winter cereals. Peculiarities of
organogenesis and their impact in grain yield of facultative triticale depend on different nitrogen
fertilization can help to avoid adverse effects of unfavorable conditions. Field experiment was
conducted in zone of the Right-Bank Forest-Steppe of Ukraine. The experiment included 2 late
autumns sowing periods and fertilization system with few variants of nitrogen fertilization
applied in spring. Features of organogenesis of two winter varieties and facultative triticale
Pidzimok kharkivskiy were determined by apical meristem microscopy from emergence till
heading. Was established process of apical meristem differentiation in facultative triticale has
non-linear relation between temperature and number of spikelets. The efficiency of apical
meristem differentiation reaches its maximum at 12 °C. Grain yield of triticale varieties depend
on studied factors but main impact had weather conditions. Grain yield of facultative triticale
significantly exceeds winter varieties and had a lesser difference between sowing period than
winter cultivars. Crops in the first sowing period were more productive than in the second.
Facultative triticale has great productivity potential in late autumn sowing and can realize it in
various conditions. Reduced yields in late sowing are lower than in winter cultivars.
Kirjeldus
Märksõnad
apical meristem, nitrogen fertilization, organogenesis, sowing period, articles