Title: Variability of grain yield of spring triticale in Poland in the different conditions of atmospheric drought

Authors: KALBARCZYK, E.

Keywords: spring triticale, grain yield, atmospheric drought, relative precipitation index (RPI), hydrotermical index (K), development period

Abstract: The goal of the work was to determine which development stages of spring triticale are exposed to the most frequent occurrence of atmospheric drought and also to examine the quantity of reduction in grain yield depending on intensity of drought and a period of its occurrence. Periods of drought were identified through the relative precipitation index (RPI) and the hydrothermal coefficient K. The research used data from 34 experimental stations of the Research Centre for Cultivar Testing (COBORU), situated in whole Poland, encompassing the dates of sowing, emergence, tillering, shooting, heading, wax maturity and harvesting, and spring triticale grain yield in the years 1984-2004 as well as meteorological data, average air temperature and atmospheric precipitation total, from stations of the Institute of Meteorology and Water Management (IMGW) located in the vicinity of experimental stations. The results concerned a standard of spring triticale determined as an average of varieties cultivated in a given year. It was stated that periods of drought of various intensity most frequently occur in spring in the period from sowing to tillering. Spring triticale endures dry periods well (50
APA style references: Kalbarczyk, E. (2010). Variability of grain yield of spring triticale in Poland in the different conditions of atmospheric drought. Scientific Review Engineering and Environmental Sciences, 19 (1), 20-33.

APA style citation in text: The first time citation in text: (Kalbarczyk, 2010), next citation: (Kalbarczyk, 2010)

Chicago style references: Kalbarczyk, Eliza. "Variability of grain yield of spring triticale in Poland in the different conditions of atmospheric drought." Scientific Review Engineering and Environmental Sciences, 47 ser., vol. 19, no 1, (2010): 20-33.

Chicago style citation in text: (Kalbarczyk 2010)

Bibtxt style references: @article{Kalbarczyk_2010_PNIKS, author={Kalbarczyk, Eliza}, title={Variability of grain yield of spring triticale in Poland in the different conditions of atmospheric drought.}, journal={Scientific Review Engineering and Environmental Sciences}, URL={http://iks_pn.sggw.pl/PN47/A3/art3.pdf}, year={2010}, volume={19 (1)}, number={47}, pages={20-33}}

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