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
MACROFUNGI IDENTIFIED IN THE PEAT BOGS FROM THE NATURA 2000 SITE „GĂINA LUCINA” (EASTERN CARPATHIANS, ROMANIA)
The observations on the macrofungi were performed in phytocenoses with Pinus sylvestris L. and Picea abies (L.) Karsten from „Tinovul Găina-Lucina” and „Tinovul de lângă drum” peat bogs of the Natura 2000 site „Găi...
RESEARCHES CONCERNING THE IMPACT POLLUTION WITH HEAVY METALS OF THE SOIL AND VEGETATION ON THE AREA OF DOMESTIC WASTES DEPOSIT AT TOMEŞTI – IASI
The paper presents the results of research concerning the heavy metals content (Cu, Cr, Cd, Pb, Ni) from the soil and vegetation on the area of domestic wastes platform at Tomesti – Iasi. The concentration of heavy...
COMPARATIVE STUDY OF THE SECRETORY STRUCTURES AND VOLATILE OILS IN SOME PINUS SPECIES
The research is focused on the comparative analysis of volatile oils extracted through hidrodistillation from the leaves of 4 Pinus species. The differences between the secretory structures (resin canals) were unde...
ALGOFLORA FROM THE MILETIN AND JIJIA INFERIOR CATCHMENTS I. PHYLUM BACILLARIOPHYTA AND PHYLUM CYANOBACTERIA
The paper presents a detailed analysis of the algal flora from the Miletin and Jijia Rivers inferior catchments located in the proximity of Iaşi city. The study area is represented also by a series of reservoirs complexe...
ALIEN PLANTS IN ROMANIA (I)
By the Global Strategy for Plants Conservation, adopted in April 2002 at the Hague, as a component part of the Convention referring to the Biodiversity (Rio de Janeiro 1992) it was recommended to set up by the end...