Characterization of deficiency symptoms and mineral nutrient content in Acmella oleracea cultivated under macronutrient and boron omissions

Peçanha, Diego Alves; Freitas, MartaSimone Mendonça; Vieira, Marlene Evangelista; Lima, Thaísa Capato; Gonçalves, Ygor de Souza

doi:10.1080/01904167.2019.1584216

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…Thus, by the time we analyzed gas exchanges, the genotypes of jambu were in different stages of the reproductive phase, being these rates higher in the genotypes of A. oleracea (Table 2), which may have caused different degrees of nutrient remobilization from leaves to jambu inflorescences, as verified by Peçanha et al (2019), resulting in negative effects about net CO 2 assimilation capacity in the leaves. Therefore, the remobilization of nutrients can explain, to a certain degree, the changes in the photosynthetic performance of the tested genotypes.…”

Section: Genotypementioning

confidence: 95%

Productive and physiological performance of jambu genotypes cultivated in hydroponics

et al. 2022

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Jambu is a condiment herb used in the preparation of typical and herbal dishes in the Amazon Region. The inflorescences, leaves, and stems of the plant are used. In addition, jambu has numerous applications in the cosmetics and food industries due to the presence of the bioactive compound spilanthol. The objective of this study was to evaluate the productive and physiological performance of jambu genotypes of Acmella oleracea, and Acmella ciliata species grown in hydroponics. The experiment used was a completely randomized design with eight treatments and four replicates. The treatments consisted of jambu genotypes (UFR-1, UFR-2, UFR-3, UFR-4, UFR-5, UFR-6, UFR-7 and UFR-8) collected in different locations in the state of Pará. We evaluated the beginning of flowering, length of the main branch, diameter of the main branch, leaf area, shoot fresh mass, inflorescence fresh mass, root fresh mass, total fresh mass, net photosynthetic rate, stomatal conductance, internal CO2 concentration, and instant carboxylation efficiency. The genotypes presented different behaviors about the productive and physiological growth characteristics. The genotypes UFR-1, UFR-2, UFR-3, UFR-4 and UFR-7 exhibited greater precocity of flowering. In general, genotypes of the species A. oleracea presented lower rate of net photosynthesis when compared to those of the species A. ciliata. The genotypes of A. oleracea showed total fresh mass accumulation capacity, in addition to a high potential for inflorescence production. The genotypes UFR-2 and UFR-4 stood out because they presented higher yields of shoots fresh mass and inflorescences, respectively. Therefore, these genotypes should be considered in crop improvement programs.

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Section: Genotypementioning

confidence: 95%

Productive and physiological performance of jambu genotypes cultivated in hydroponics

et al. 2022

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“…The practice of organic fertilization has the purpose of improving the physical, biological, and chemical structures of the soil (Quiroz & Flores, 2019). There are few studies on organic fertilization in jambu production, which leads farmers to use fertilizer recommendations for other similar leafy crops and fertilizer sources that may be inadequate for the crop (Peçanha et al, 2019). Therefore, more research on organic fertilization sources for jambu crops is necessary, in order to obtain higher yields, both of biomass and inflorescences, hence higher quality of the final product (Rodrigues et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Adubação orgânica em cobertura na produção de jambu

Nordi¹,

Cardoso²,

Alves³

et al. 2022

Com. Sci.

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No estado de São Paulo, o jambu tem sido plantado visando a sua utilização industrial. No entanto, são poucos os trabalhos envolvendo a nutrição mineral e a adubação orgânica no jambu, fazendo com que os agricultores utilizem recomendações de adubação para outras culturas folhosas semelhantes e diferentes adubos. Com isso, objetivou-se avaliar diferentes fontes de adubos orgânicos em cobertura na produção de jambu sob manejo orgânico. Os experimentos foram conduzidos na Fazenda Experimental de São Manuel, SP e no sítio Zodíaco, situado no bairro Demétria, município de Botucatu, SP. Foram avaliados seis tratamentos (adubos orgânicos em cobertura: ferticel®, provaso, torta de mamona, bokashi, farinha de casco e chifre e uma testemunha sem cobertura), utilizando delineamento em blocos ao acaso, com cinco repetições. Foram avaliadas, em duas colheitas em cada local: massa da matéria fresca da parte vegetativa (MFPV), das inflorescências (MFINF) e total (MFT), número de inflorescências (NINF) e massa média por inflorescência (MMI). Foram obtidos aumentos de 158 e 78%; 103 e 101%; 143 e 86%; 144 e 85%, na MFPV, MFINFL, NINFL e MFT, respectivamente, com a utilização da farinha de casco e chifre (melhor tratamento, sem diferir da torta de mamona) em comparação ao controle no Sítio Zodíaco e Fazenda Experimental de São Manuel, respectivamente. Os resultados indicam que a farinha de casco e chifre e a torta de mamona foram os melhores adubos em ambos os cortes e localidades, com maior produção tanto de massa fresca como seca das partes vegetativas e reprodutivas do jambu.

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Characterization of deficiency symptoms and mineral nutrient content in Acmella oleracea cultivated under macronutrient and boron omissions

Cited by 2 publications

References 27 publications

Productive and physiological performance of jambu genotypes cultivated in hydroponics

Productive and physiological performance of jambu genotypes cultivated in hydroponics

Adubação orgânica em cobertura na produção de jambu

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