Results 11 to 20 of about 1,111,405 (308)

An integrated leaf trait analysis of two Paleogene leaf floras

open access: yesPeerJ, 2023
Objectives This study presents the Integrated Leaf Trait Analysis (ILTA), a workflow for the combined application of methodologies in leaf trait and insect herbivory analyses on fossil dicot leaf assemblages.
Christian Müller   +5 more
openaire   +3 more sources

Leaf analysis and fertilizer response

open access: yesCalifornia Agriculture, 1960
An apple orchard in the Booneville area of Mendocino County was shown, by leaf analyses, to be low in phosphorus and potassium. Test plots were established in the orchard in 1952, and fertilized with nitrogen, potassium, and phosphorus. In 1956 potassium
E Proebsting
doaj   +1 more source

Legume leaf senescence [PDF]

open access: yesPlant Signaling & Behavior, 2009
Senescence is the last stage of development of a leaf, and is marked by a progressive degradation of cellular components and their recycling to other organs of a plant. We recently performed a transcriptomic analysis of leaf senescence in the legume model Medicago truncatula. Changes in gene expression reflected the profound physiological rearrangement
DE MICHELE, ROBERTO   +2 more
openaire   +5 more sources

Desenvolvimento de normas DRIS e CND e avaliação do estado nutricional da cultura do algodoeiro Development of dris and CND norms and evaluation of nutritional status of cotton

open access: yesRevista Brasileira de Ciência do Solo, 2010
Entre os vários métodos de avaliação do estado nutricional das plantas, encontram-se o DRIS e o CND, os quais têm como objetivo, entre outros, ordenar a limitação dos nutrientes na planta.
Ademar Pereira Serra   +4 more
doaj   +1 more source

Approach to Petiole Sap Nutritional Diagnosis Method by Empirical Model Based on Climatic and Growth Parameters

open access: yesAgronomy, 2020
The aim of this work is to evaluate the relationship between the nutrient concentration in petiole sap and different agronomic and climatic variables for a tomato crop grown in a greenhouse in Mediterranean conditions. In addition, the persistence of the
Alfonso Llanderal   +6 more
doaj   +1 more source

Leaf Nutrient Status of Commercially Grown Strawberries in Latvia, 2014–2022: A Possible Yield-Limiting Factor

open access: yesPlants, 2023
The present study was carried out to evaluate the leaf nutrient status of commercially grown strawberries in Latvia during 2014–2022. The results of N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo and B in 200 strawberry leaf samples from different strawberry ...
Anita Osvalde   +3 more
doaj   +1 more source

Easy Leaf Area: Automated digital image analysis for rapid and accurate measurement of leaf area. [PDF]

open access: yes, 2014
UnlabelledPremise of the studyMeasurement of leaf areas from digital photographs has traditionally required significant user input unless backgrounds are carefully masked.
Bloom, Arnold J, Easlon, Hsien Ming
core   +3 more sources

Sufficiency ranges (sr) and deviation from optimum percentage (dop) references for leaf blade and petiole analysis in ‘Red Grenache’ grapevines

open access: yesOENO One, 2015
Aim: To obtain specific references for the nutritional diagnosis of ten essential nutrients for leaf blade and petiole of ‘red Grenache’ (Vitis vinifera L.).
Ana Benito   +4 more
doaj   +1 more source

A flexible geometric model for leaf shape descriptions with high accuracy [PDF]

open access: yes, 2018
Accurate assessment of canopy structure is crucial in studying plant-environment interactions. The advancement of functional-structural plant models (FSPM), which incorporate the 3D structure of individual plants, increases the need for a method for ...
Coussement, Jonas   +4 more
core   +2 more sources

Leaf nutrient contents of rangpur lime rootstock as afected by N, P, K, Ca and S fertilization Concentrações foliares do porta-enxerto limoeiro 'cravo' em função da adubação N, P, K, Ca e S

open access: yesScientia Agricola, 2004
Analysis of leaf nutrient contents can demonstrate plant nutritional status, identify symptoms of deficiency and toxicity, and evaluate the need to adjust fertilization programs.
Jonas Ruschel   +4 more
doaj   +1 more source

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