نتایج جستجو برای: chlorophyll spad

تعداد نتایج: 21888  

Journal: :CoRR 2017
Quercus Hernandez Diego Gutierrez Adrian Jarabo

Single-Photon Avalanche Diodes (SPAD) are affordable photodetectors, capable to collect extremely fast low-energy events, due to their single-photon sensibility. This makes them very suitable for time-of-flight-based range imaging systems, allowing to reduce costs and power requirements, without sacrifizing much temporal resolution. In this work we describe a computational model to simulate the...

Journal: :Spanish Journal of Agricultural Research 2021

Aim of study: Entomopathogenic fungi (EPF) are biocontrol agents, plant growth promoters, and increase tolerance to biotic-abiotic stresses. In this study we investigated the factors associated application method, which crucial for interaction between fungus host at initial crop stages. Area The was performed in Cordoba (Spain) Material methods: Three experiments were investigate: (i) effect di...

Journal: :Jurnal agronomi Indonesia 2023

Agronomic performance of garlic is speculated strongly affected by genotype ´ environment interaction, however, interaction evaluation rarely studied in Indonesia. This research aimed to study the agronomic response four varieties two different locations. The was conducted from April December 2021 using Lumbu Putih, Hijau, Kuning, and Tawangmangu Baru genotypes grown locations, i.e., Lembang (1...

Journal: :Revista Facultad Nacional de Agronomía 2021

The determination of leaf nitrogen content (LNC) by indirect methods is essential for silvicultural management forest crops. application photography or rapid measurement equipment, such as chlorophyll index (soil-plant analysis development-SPAD), increasingly used due to its low-cost, ease estimation and accuracy. Therefore, the aim this study was estimate foliar from nondestructive in plantati...

Journal: :Sains Malaysiana 2022

Pumpkin or squash is an economically important crop that moderately sensitive to salinity but how its growth affected by soil poorly understood. Salinity stress on physiological and anatomical traits of Cucurbita moschata ‘Butternut’ was investigated under hydroponic culture using Hoagland’s solution with various NaCl concentrations (0, 25, 50, 75, 100, 150 mM) for four weeks. The results showe...

Journal: :iran agricultural research 2014
p. ahmadi moghaddam

abstract- the evaluation of leaf area and leaf nutritional value is important for crop growth modeling and estimations of its performance. the purpose of this study was to use image processing techniques to develop an economical method to ease the assessment of nutrient status and leaf area (la) of plants and to compare the outcomes of this method with linear models. leaf area and leaf chloroph...

Journal: :The Journal of Agricultural Science 2022

Abstract The spatio-temporal variation of leaf chlorophyll content is an important crop phenotypic trait that great significance for evaluating productivity. This study used a soil-plant analysis development (SPAD) meter non-destructive monitoring dynamics to characterize the patterns in nutritional status maize ( Zea mays L.) leaves under three nitrogen treatments two cultivars. results showed...

2016
Klodian Dhoska Helmuth Hofer Beatrice Rodiek Marco López Toomas Kübarsepp Stefan Kück

BACKGROUND Silicon single-photon avalanche diodes (Si-SPADs) are the most used devices for measuring ultra-weak optical radiant fluxes in many quantum technology fields, such as quantum optics, quantum communication, quantum computing, etc. In all these fields, the detection efficiency is the main parameter, which has to be accurately known for achieving reliable measurements. In this paper we ...

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