Effects of Drought Stress Post-Anthesis Stageon Mobilization of Stem-reserves Supporting Grain Filling of Some Triticale Cultivar and Lines

R. DOGAN, O. KACAR, E. BUDAKLI CARPICI and E. GOKSU
Uludag University Faculty of Agriculture, Department of Field Crops, 16059 Gorukle, Bursa, Turkey

Abstract

DOGAN, R., O. KACAR, E. BUDAKLI CARPICI and E. GOKSU, 2012. Effects of drought stress post-anthesis stageon mobilization of stem-reserves supporting grain filling of some triticale cultivar and lines. Bulg. J. Agric. Sci., 18: 325-329

The objectives of the study were to determine the contribution of stem reserves to grain filling in a triticale cultivar and lines under drought stress conditions created at post-anthesis stage by chemical desiccant application such as potassium chlorate (4%). The study was conducted with completely random block design replicated three times at Southern Marmara Region in 2005 and 2006. In this study, dry matter translocation (DMT- mg grain-1), dry matter translocations efficiency (DMTE-%), rate of grain weight reduction (RGWR-%), mean productivity (MP- kg ha-1) and seed yield tolerance (SYT- kg ha-1) were determined.
Two-year averages indicated that the lines C9 and N x E (3) were more drought resistant than the other genotypes in respect of DMT, RGWR, MP and STY.

Key words: triticale; dry matter translocation; stem-reserve mobilization; post-anthesis drought stress; chemical desiccant

See the article as a PDF.