THE BROOMRAPE EFFECT ON SOME PHYSICAL AND MECHANICAL PROPERTIES OF SUNFLOWER SEEDS
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2013, Vol 59, Issue 2
Abstract
In infested fields Orobanche causes severe yield and quality losses. Heavy infestations can cause >50% reduction in yields and severe quality losses. In this study, several commercial sunflower hybrids were analyzed in order to identify modifications of some physical properties of sunflower seeds induced by natural infestation with broomrape. The measured parameters were linear dimensions, thousand grain mass, geometric mean diameter, sphericity, surface and projected area, volume, shape parameters using standard methods. Broomrape infection showed direct consequences on studied properties of sunflower seeds: length (- 4,0%), width (- 7,7%), thickness (- 8,3%), geometric mean diameter (- 6,8%), sphericity (- 2,9%), surface area (- 12,7%), projected area (- 11,2%), volume (- 17,9%), flakiness ratio (- 0,5%), elongation ratio (+ 4,6%), aspect ratio (- 3,9%). The most affected were 1000-grains weight (- 20,1%) and mass of 1000 kernels (- 20,7%).
Authors and Affiliations
MARIA DUCA, ALIONA GLIJIN
Keywords
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