The primary objective of the present study is to determine the variations for physiological traits of triticale
genotypes. Experiments were carried out in randomized complete block design with 3 replications during the
cropping years of 2011-2012 and 2012-2013. Totally 5 cultivars and 20 lines of triticale were used as the plant
material of the experiments. The relationships of grain yield with net photosynthesis rate (Pn), stomatal
conductance (gs), internal CO2 concentration/ambient CO2 ratio (Ci/Ca), mesophyll conductance (Mc),
transpiration efficiency (TE), transpiration rate (Tr) and the leaf temperature (Tl) were assessed through
correlation and biplot analyses. For all three growth stages (booting, anthesis, grain filling), significant positive
correlations were observed between Tr and Tl; gs and Tr; gs and Pn; gs and Ci/Ca and Mc and Pn, and the
greatest negative correlations were observed between TE and Tl. Current findings were not able indicate a
single physiological trait has significant correlations with grain yield in all growth stages. However, significant
negative correlations were observed between grain yield and Tl-Tr at booting and anthesis stages. It was
concluded that low temperature, high net photosynthesis rate, high Ci/Ca and low transpiration rate might be
used as reliable selection criteria in further triticale breeding programs.
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | June 1, 2016 |
Published in Issue | Year 2016 |
Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
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Ege University, Faculty of Agriculture,Department of Field Crops
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