Results 21 to 30 of about 132,891 (291)

Automated monitoring of pollen quality in Douglas-fir using digital images: applications for handling and storage

open access: yesBotan‪ical Sciences, 2023
Background: Conservation and breeding programs for forest species require efficient pollen quality monitoring strategies to maximize collection, storage and pollination efforts.
Cassandra Rubio-Plascencia   +3 more
doaj   +1 more source

Extractive Spectrophotometric Determination and Theoretical Investigations of Two New Vanadium(V) Complexes

open access: yesMolecules, 2023
Two new vanadium (V) complexes involving 6-hexyl-4-(2-thiazolylazo)resorcinol (HTAR) and tetrazolium cation were studied. The following commercially available tetrazolium salts were used as the cation source: tetrazolium red (2,3,5-triphenyltetrazol-2 ...
Kiril B. Gavazov   +4 more
doaj   +1 more source

Seed Viability Test, Germination Rate and In vitro Regeneration of Some Alkanna Species

open access: yesTürkiye Tarımsal Araştırmalar Dergisi, 2021
In this study, it was aimed to test the seed viability of Alkanna orientalis and endemic Alkanna sieheana species rich in Alkannin/Shikonin (A/S) and to determine the germination percentage and callus regeneration suitable for in vitro A/S production ...
Cennet YAMAN   +3 more
doaj   +1 more source

Morphological characteristics and seed viability of Schizolobium parahyba (Vell.) S.F. Blake

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2020
Schizolobium parahyba is a fast-growing tropical tree, with various uses: forestry, agroforestry, landscaping, boat building, cabinetmaking and light packaging.
Miguel Espitia-Camacho   +2 more
doaj   +1 more source

Investigation of viability rate and the effects of different breaking treatments of physical dormancy on seed germination of two tree species (Basswood and Black locust) [PDF]

open access: yesعلوم و فناوری بذر ایران, 2017
Basswood(Tilia begonifolia) and Blacklocust (Robinia pseudoacacia) are two forest trees with seed dormancy due to very hard seed coat. Seeds of two species were collected from Ghorogh nursery in Gorgan province to remove seed coat (breaking seed dormancy)
M. Mollashahi   +2 more
doaj   +1 more source

Superação da dormência e avaliação da qualidade fisiológica de sementes de Sesbania virgata Dormancy break and evaluation of physiological quality of Sesbania virgata seeds

open access: yesCiência e Agrotecnologia, 2008
A avaliação da qualidade fisiológica de lotes de sementes de Sesbania virgata é dificultada pela dormência inerente à espécie, bem como pela inadequação metodológica de testes disponíveis. Para desenvolver procedimentos adequados à avaliação da qualidade
Valquíria Nogueira Camargos   +3 more
doaj   +1 more source

Susceptibility of Mycobacterium tuberculosis to first-line antimycobacterial agents in a Brazilian hospital: assessing the utility of the tetrazolium (MTT) microplate assay

open access: yesMemorias do Instituto Oswaldo Cruz, 2010
We conducted a cross-sectional, hospital-based study between January 2006-March 2008 to estimate the resistance of Mycobacterium tuberculosis to first-line drugs in patients with tuberculosis at a Brazilian hospital.
Michela De Luca Ferrari   +6 more
doaj   +1 more source

Vigor tests in seeds creole of Phaseolus lunatus L.

open access: yesBioscience Journal, 2019
Seeds with a good physiological quality are essential to high productivity. However, for some seeds, Phaseolus lunatus L., the viability and vigor analyze show deficiency in quality.
Maria das Graças Rodrigues do Nascimento   +4 more
doaj   +1 more source

Methodological adjustments to the tetrazolium test in coriander seeds

open access: yesJournal of Seed Science, 2021
: The reduction in the time to perform the tetrazolium test is critical in decision making at pre and post-harvest of seeds. Thus, the objective of this study was to investigate different concentrations of the tetrazolium salt solution, temperatures, and
Raimunda Nonata Oliveira da Silva   +5 more
doaj   +1 more source

Adaptation of tetrazolium test methodology to estimate the viability of Eugenia stipitata McVaugh ssp. sororia McVaugh seeds [PDF]

open access: yesHoehnea, 2023
The tetrazolium test is a fast and effective method to determine seed viability. In this context, the objective was to adapt the methodology of the tetrazolium test, in relation to preconditioning, to determine the viability (Eugenia stipitata McVaugh ...
Sonicley da Silva Maia   +3 more
doaj   +1 more source

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