Results 81 to 90 of about 1,111,211 (256)

Nitrogen Concentration Estimation in Tomato Leaves by VIS-NIR Non-Destructive Spectroscopy

open access: yesSensors, 2011
Nitrogen concentration in plants is normally determined by expensive and time consuming chemical analyses. As an alternative, chlorophyll meter readings and N-NO3 concentration determination in petiole sap were proposed, but these assays are not always ...
Paolo Menesatti   +10 more
doaj   +1 more source

Transformation of tobacco with the BA5 cement protein gene from Balanus amphitrite [PDF]

open access: yes, 2012
Expressing barnacle cement proteins genes such as the BA5 gene in plants may enable individual study and analysis. This technique is effective since barnacle cement is difficult to work with as a whole in the lab setting.
Marquis, Matt
core   +1 more source

Estado nutricional de diferentes cultivares de pereira nas condições edafoclimáticas de Guarapuava-PR Leaf content and nutrient extraction by fruit harvest of pear trees cultivars grafted on quince 'CP'

open access: yesRevista Brasileira de Fruticultura, 2010
A adubação de plantas frutíferas de clima temperado é rotineiramente recomendada em função da interpretação de laudos de análises químicas de solo e folhas, mas não são específicas para as diferentes cultivares e porta-enxertos.
Renato Vasconcelos Botelho   +3 more
doaj  

Proposal of Nutritional Standards for the Assessment of the Nutritional Status of Grapevines in Subtropical and Temperate Regions

open access: yesPlants
The necessity for nutritional standards to evaluate the nutritional status of grapevines is a critical concern for viticulturists worldwide. This study addressed the lack of multinutrient standards that consider specific genetic and environmental factors
Danilo Eduardo Rozane   +9 more
doaj   +1 more source

Comparison of growing media for container grown plants [PDF]

open access: yes, 2011
Greenhouse and growth chamber experiments are conducted worldwide in efforts to produce solutions that would increase yields of agronomic crops. However, the results of those experiments vary due to the many growth media being used.
Harris, Paul   +3 more
core   +2 more sources

Effect of Cultivar on Chlorophyll Meter and Canopy Reflectance Measurements in Cucumber [PDF]

open access: yes, 2020
Optical sensors can be used to assess crop N status to assist with N fertilizer management. Differences between cultivars may affect optical sensor measurement.
De Souza, Romina   +5 more
core   +1 more source

Antimicrobial analysis of Persia Americana leaf

open access: yes, 2023
ABSTRACT The pulvurised leaves of P. americana was extracted with methanol and the crude extract obtained was subjected to antimicrobial screening against clinically isolated organisms from patients with infectious wounds, the organisms include; E colli spp, Klebsellia spp, and Pseudomona spp., Klebsiellia spp only produce inhibitory activity against ...
Amuda MO, Edewor TI, Oderinlo OO
openaire   +1 more source

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