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Influence of substrate, chemical treatment and length of storage on sunflower seed germination
(Paris : International Sunflower Association, 2012)
For determination of sunflower seed quality several substrates are in use: sand, soil, compost and filter paper where sand is most commonly used. Sand enables good contact of seeds and substrate and decreases possibility ...
Genetic diversity of Macrophomina phaseolina isolates from different regions and host plants
(Paris : International Sunflower Association, 2012)
Macrophomina phaseolina (Tassi) Goid. is a soil borne pathogen with a wide host range which causes disease on more than 500 cultivated and wild plant species. The absence of host specificity and its geographic distribution ...
Mode of inheritance and combining ability for seed yield and morphophisiological components of yield in sunflower (Helianthus annuus L.)
(Paris : International Sunflower Association, 2012)
Used in this study were 13 new divergent cms inbred lines (A) originating from four interspecies populations originating from three annual (H. debilis, H. praecox runyoni, H. deserticola) and one perennial (A. resinosus) ...
Estimation of combining abilities in sunflower (Helianthus annuus L.)
(Paris : International Sunflower Association, 2012)
In commercial production, sunflower hybrids are more represented than open pollinated varieties. The basic advantage of hybrids over varieties is that the hybrids allow the use of heterosis. Sunflower hybrids are more ...
Screening perennial Helianthus species for powdery mildew
(Paris : International Sunflower Association, 2012)
Powdery mildew (Erysiphe cichoracearum) has been reported as a potential constraint for sunflower growing in regions with warm climate. Severity of disease varies depending on the sunflower genotype. Aim of this research ...