Síntomas de deficiencia de macronutrientes en pimiento (Capsicum annuum L.)

Silva, Ana Zélia; Anderson, Fernando Wamser; Nowaki, Rodrigo Hiyoshi Dalmazzo; Filho, Arthur Bernardes Cecílio; Mendoza-Cortez, Juan Waldir

doi:10.31285/agro.21.2.5

Cited by 5 publications

(2 citation statements)

References 15 publications

(23 reference statements)

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“…Nitrogen in plants is the most important macronutrient in agroecosystems, as it participates in crucial biochemical reactions involved in plant physiology, development, growth, and yield, as well as in the nutritional contribution to crop fruit [1,2]. Visually, nitrogen deficiencies are characterized by leaf chlorosis, flower drop, growth stunting, and plant senescence [3], although these deficiencies manifest late.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Estimation in Fig Cultivation through Remote Sensing and Machine Learning

Martínez-Macias,

Martínez-Sifuentes,

Márquez-Guerrero

et al. 2024

Preprint

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Nitrogen is one of the most important macronutrients for crops, and in conjunction with artificial intelligence algorithms, it is possible to estimate it with the aid of vegetation indices through remote sensing. Various indices were calculated and those with a correlation ≥ 0.7 were selected for subsequent use in Random Forest, Gradient Boosting, and Artificial Neural Networks to determine their relationship with nitrogen levels measured in the laboratory. Random Forest showed no relationship, yielding an R2 of zero, whereas Artificial Neural Networks yielded the best results with an R2 of 0.93. Thus, it is reliable to estimate nitrogen levels using this algorithm by feeding it with data from TCARI, MCARI, TCARI/OSAVI, and MCARI/OSAVI, assisted by technological tools.

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Section: Introductionmentioning

confidence: 99%

Nitrogen Estimation in Fig Cultivation through Remote Sensing and Machine Learning

Martínez-Macias,

Martínez-Sifuentes,

Márquez-Guerrero

et al. 2024

Preprint

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“…El principal problema en el cultivo de Capsicum annuum L., es las susceptibilidad a diferentes enfermedades, las cuales son ocasionados por la Podredumbre gris (Botrytis cinerea), Podredumbre blanca (Sclerotinia sclerotiorum), seca, o tristeza (Phytophthora capsici), entre otros (Quispe et al, 2022;López et al, 2019;Silva et al, 2017) y virosis, producida principalmente por el virus del mosaico del tabaco (TMV), el virus del mosaico del pepino (CMV), el virus "Y" de la papa (PVY), el virus del grabado del tabaco (TEV) y el virus del moteado de las venas del pimiento (PVMV) (Rodriguez et al, 2007), esto genera una baja en la productividad de las cosechas, produciendo de esta manera pérdidas económicas a las grandes empresas agrícolas. Debido a esto, los diferentes organismos dedicados a la agricultura moderna, utilizan diferentes técnicas biotecnológicas que ayudan a mejorar la productividad de las plantas, con lo que resulta un método eficiente, económico y rentable (González & Castañeda, 2019;Villanueva, 2018).…”

Section: Introductionunclassified

INDUCCIÓN IN VITRO DE CALLOS A PARTIR DE EXPLANTES DE Capsicum annum L.

Castillo Zavala,

Mostacero-León,

De La Cruz-Castillo

2022

ASI

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El Capsicum annuum L. es de importancia en la culinaria mundial y su cultivo es susceptible a diferentes plagas y enfermedades, por lo que su reproducción en los tejidos vegetales, resulta ser la mejor alternativa para su producción a gran escala de sus derivados de buena calidad, y por consiguiente aptos, para el mercado internacional. En ese sentido, se propuso inducir in vitro callos a partir de explantes de C. annuum. Para ello, se realizó la esterilización y germinación de las semillas de esta especie en medio MS (Murashigue-Skoog), luego la desdiferenciación de los explantes, empleando este medio, suplementado con 2,4 D y Kinetina. Se observó una desdiferenciación de los explantes de C. annuum a la segunda semana de su cultivo, seguido de la posterior formación de callos a la semana cuarta y quinta del experimento. Se concluye que estos procesos realizados, fueron principalmente producidos por las auxinas y citocininas agregadas al medio.

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Fruit yield and gas exchange in bell peppers after foliar application of boron, calcium, and Stimulate

et al. 2018

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The objective of this study was to evaluate the effect of the isolated and combined foliar application of boron, calcium, and the plant growth regulator Stimulate on fruit yield and gas exchange in bell peppers. The evaluated treatments were boron, calcium, Stimulate, boron + calcium, boron + Stimulate, calcium + Stimulate, boron + calcium + Stimulate, and control (water). The study was performed in complete randomized block design with three replicates. The applications were performed biweekly on the plant leaves from the beginning of flowering (December 21, 2013) until March 1, 2014. The analyzed gas exchange characteristics were photosynthetic yield, internal CO2 concentration, and transpiration rate. The evaluated agronomic characteristics were number and yield of marketable and non-marketable fruits, and the average mass, volume, and firmness of commercial fruits. The foliar application of boron from the beginning of flowering increased the photosynthetic yield and the yield of marketable fruits cultivated in the field. The foliar application of calcium and Stimulate did not improve gas exchange and fruit yield. The most common effects of boron were an increase in the number of marketable fruits. Moreover, foliar spraying with calcium from the beginning of flowering increased the firmness of commercial fruits

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Síntomas de deficiencia de macronutrientes en pimiento (Capsicum annuum L.)

Cited by 5 publications

References 15 publications

Nitrogen Estimation in Fig Cultivation through Remote Sensing and Machine Learning

Nitrogen Estimation in Fig Cultivation through Remote Sensing and Machine Learning

INDUCCIÓN IN VITRO DE CALLOS A PARTIR DE EXPLANTES DE Capsicum annum L.

Fruit yield and gas exchange in bell peppers after foliar application of boron, calcium, and Stimulate

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