Results 61 to 70 of about 84,775 (233)

Genetic variability of concentration of microelements in wild sunflower species and hybrids [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2010
The aim of this work was to investigate genetic specificity of sunflower nutrition with microelements. Therefore, concentrations of essential (Zn, B, Mn, Cu, Fe and Ni) and non-essential (Cr, Al, Cd, As, Pb and Ba) micronutrients were analyzed.
Kastori Rudolf R.   +5 more
doaj   +1 more source

Long-term field metal extraction by pelargonium:phytoextraction efficiency in relation to plant maturity [PDF]

open access: yes, 2011
The long length of periods required for effective soil remediation via phytoextraction constitutes a weak point that reduces its industrial use. However, these calculated periods are mainly based on short-term and/or hydroponic controlled experiments ...
Anne Probst   +47 more
core   +3 more sources

Relation between nuclear DNA content and rate of cell growth during interphase in four species of Angiospermae

open access: yesActa Societatis Botanicorum Poloniae, 2015
Among four species of Angiospermae with known nuclear DNA content (Cucurbita pepo - 2.6 pg, Helianthus annuus - 12.0 pg, Vicia faba — 38.0 pg, and Tulipa kaufmanniana - 93.7 pg) the cell growth in the intermitotic period of the cell cycle has been ...
K. Marciniak   +3 more
doaj   +1 more source

???? ???? ???? ??????? ???????? ???? ?????? ??????? ??????? Composite ?? ??? ??? Erysiphe graminis f.sp. tritici L. ??????? ?? ????? ???? ?????? Triticum aestivum L. ?????? ??????

open access: yesمجلة علوم ذي قار, 2019
This study aimed to examine the activity of aqueaos extract of  Helianthus annuus L. , Tagetes patula L. and Artemisia herba_alba L. on spore germination and the growth of Erysiphe graminis f.sp. tritici that isolated from Triticum aestivum L.
حيدر راضي
doaj   +4 more sources

Helianthus salicifolius as a New Biomass Source for Biogas Production

open access: yesEnergies, 2022
Renewable energy is becoming a widely discussed topic in the European Union (EU), due to a desire to reduce the negative effects of fossil fuels on climate change and biodiversity.
Dumitru Peni   +2 more
doaj   +1 more source

Increasing leaf hydraulic conductance with transpiration rate minimizes the water potential drawdown from stem to leaf. [PDF]

open access: yes, 2014
Leaf hydraulic conductance (k leaf) is a central element in the regulation of leaf water balance but the properties of k leaf remain uncertain. Here, the evidence for the following two models for k leaf in well-hydrated plants is evaluated: (i) k leaf is
Barbour, Margaret   +5 more
core   +3 more sources

Dissecting the genetic architecture of sunflower disc diameter using genome‐wide association study

open access: yesPlant Direct
Sunflower (Helianthus annuus L.) plays an essential role in meeting the demand for edible oil worldwide. The yield of sunflower seeds encompasses several component traits, including the disc diameter.
Yavuz Delen   +6 more
doaj   +1 more source

Temporal Dynamics in Rhizosphere Bacterial Communities of Three Perennial Grassland Species

open access: yesAgronomy, 2016
Rhizodeposition is considered a primary reason for the plant identity effect. However, the detection of distinct rhizosphere bacterial communities (RBC) with different plant species has been variable.
Cheryl A. Murphy   +2 more
doaj   +1 more source

A target enrichment method for gathering phylogenetic information from hundreds of loci: An example from the Compositae. [PDF]

open access: yes, 2014
UnlabelledPremise of the studyThe Compositae (Asteraceae) are a large and diverse family of plants, and the most comprehensive phylogeny to date is a meta-tree based on 10 chloroplast loci that has several major unresolved nodes.
Burke, John M   +8 more
core   +2 more sources

Effect of substrates on germination and seedling emergence of sunflower (Helianthus annuus L.) at the Yongka Western Highlands Research/Garden Park, Bamenda-Cameroon [PDF]

open access: yes, 2015
A study was carried out at the Yongka Western Highlands Research Garden Park, Nkwen­Bamenda in Cameroon to evaluate the effect of substrates on the germination and seedling emergence of sunflower (Helianthus annuus L.).
Fokou, L.   +4 more
core   +2 more sources

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