Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

Lima, Rosiane de Lourdes Silva de; Sofiatti, Valdinei; Azevedo, Carlos Alberto Vieira de; Cazetta, Jairo Osvaldo; Júnior, Genelicio Souza Carvalho; Arriel, N. H. C.

doi:10.5433/1679-0359.2014v35n6p3003

Cited by 4 publications

(10 citation statements)

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“…Potassium (K) is an element required in great amounts at the beginning and during the entire development of the fruits (Lima et al, 2014b). Probably, this is the reason why inflorescences showed high K content (16.4 g kg -1 ) ( Figure 2C).…”

Section: Resultsmentioning

confidence: 99%

“…Probably, this is the reason why inflorescences showed high K content (16.4 g kg -1 ) ( Figure 2C). Stems from flowering branches (SFB) showed higher K content (15.5 g kg -1 ) than stems from vegetative branches (SVB) (11.3 g kg -1 ) ( Figure 2C), possibly because the beginning of flowering causes a flow of K into the inflorescence or because it is accumulated closer to the seeds for a later moment, when the demand is intensified (Lima et al, 2014b). However, Lima et al (2011b) mention that the presence or absence of inflorescences in the branches does not influence K contents in the leaf tissues of adult jatropha plants.…”

Section: Resultsmentioning

confidence: 99%

“…The Ca content in the inflorescences (9.2 g kg -1 ) was lower than in stems and leaves of the same branch, probably because this nutrient has low mobility in the plant and accumulated in the tissue without being able to be redistributed to other plant parts (Marschner, 2002). According to the results, it is possible to infer that there was higher translocation of Ca from leaves to flowers, since this nutrient has structural function and low mobility in the phloem (Marschner, 2002;Lima et al, 2014b).…”

Section: Resultsmentioning

confidence: 99%

“…The literature does not mention the partitioning of this nutrient among the organs of jatropha, and is limited to the contents obtained only in leaves and fruits (Laviola & Dias, 2008;Lima et al, 2014b).…”

Section: Resultsmentioning

confidence: 99%

“…For this, the soil must provide nutrients in sufficient amounts, whether by natural fertility or fertilization (Lima et al, 2014b).…”

mentioning

confidence: 99%

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Nutrient allocation among stem, leaf and inflorescence of jatropha plants

Lima

Gheyi

Azevedo

et al. 2015

Rev. bras. eng. agríc. ambient.

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A B S T R A C TInformation on the partitioning of nutrients among various organs in jatropha plants, as a complementary tool for the recommendation of fertilization, is still not available. This study aimed to evaluate the contents of macro and micronutrients in stems, leaves and inflorescences of jatropha branches at the beginning of flowering. At the beginning of flowering, adult jatropha plants were sampled and divided into five compartments: inflorescences, leaves from vegetative branches, leaves from flowering branches, stems from vegetative branches and stems from flowering branches. Jatropha inflorescences are a drain of nutrients. Leaves are important sources of nutrients demanded by the inflorescences at the beginning of flowering. The higher allocation of nutrients in the inflorescences suggests the need for preventive/ corrective fertilizations, which must be performed at least 30 days before flowering, providing plants with nutrients in adequate amounts for a good yield.Alocação de nutrientes entre caule, folha e inflorescência de pinhão-manso R E S U M O Ainda não se dispõe, para a cultura do pinhão-manso, de informações concernentes à compartimentalização dos nutrientes nos diversos órgãos da planta; essas informações são importantes para subsidiar a recomendação de adubação. Objetivou-se, com este trabalho, avaliar os teores de macro e micronutrientes no caule, nas folhas e inflorescências dos ramos de pinhão-manso por ocasião do início do florescimento. Plantas adultas de pinhão-manso foram amostradas durante o início do florescimento dividindo-se a planta em cinco compartimentos (inflorescências, folhas colhidas de ramos vegetativos, folhas colhidas de ramos floríferos, caules de ramos floríferos e caules de ramos vegetativos). As inflorescências do pinhão-manso são um forte dreno de nutrientes. As folhas são importantes fontes de nutrientes demandados pelas inflorescências por ocasião do início da floração. A maior compartimentalização de nutrientes nas inflorescências sugere a necessidade de adubações preventivas/corretivas que devem ser realizadas pelo menos 30 dias antes do florescimento disponibilizando, para as plantas, nutrientes em quantidades adequadas para a obtenção de boa produtividade.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…For this, the soil must provide nutrients in sufficient amounts, whether by natural fertility or fertilization (Lima et al, 2014b).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Nutrient allocation among stem, leaf and inflorescence of jatropha plants

Lima

Gheyi

Azevedo

et al. 2015

Rev. bras. eng. agríc. ambient.

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Maturation and quality of seeds of Euterpe edulis Martius assessed by imaging and X-ray densitometry

de Mello,

Zanardo,

dos Santos Taliuli

et al. 2024

Trees

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Maturation and quality of seeds of an endangered tropical palm species (Euterpe edulis Martius) assessed by imaging and X-ray densitometry

Mello

Zanardo

Taliuli

et al. 2023

Preprint

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Euterpe edulis Martius is an endangered palm species that grows in the Atlantic Forest and the Cerrado of South America. Economic exploitation of its antioxidant-rich fruits could ensure the sustainable management of this species. However, this relies on the rapid selection of high-quality seeds from which to derive seedlings. The objective of this study was to investigate the maturation of E. edulis seeds using image analysis and X-ray densitometry. Fruits were harvested from ten matrices at different stages of maturation, from 94 days after anthesis (DAA) to 290 DAA. Seed dry mass, water content, germination, vigor, and density were quantified at each stage. At the same time, seeds were analyzed by GroundEye® imaging, radiography, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The highest dry mass was detected 255 DAA (0.83 g), in vitro germination began 115 DAA and achieved 100% from 150 DAA, and maximum vigor was observed 164 DAA, whereby 100% of seedlings appeared normal. X-ray imaging revealed dehydrated seeds and small mechanical damage, such as cracking of the pericarp. X-ray densitometry revealed that seed density increased considerably 185 DAA. SEM/EDS detected changes between maturation stages, such as the accumulation of K and Si, in the mesocarp and endocarp. Overall, E. edulis seeds presented maximum in vitro germination, vigor, percentage of normal seedlings, and physicochemical qualities 164 DAA (green epicarp), which corresponds to 126 days earlier compared with the fruits harvested 290 DAA (black epicarp) for ex vitro germination.

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Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)

Cited by 4 publications

References 11 publications

Nutrient allocation among stem, leaf and inflorescence of jatropha plants

Nutrient allocation among stem, leaf and inflorescence of jatropha plants

Maturation and quality of seeds of Euterpe edulis Martius assessed by imaging and X-ray densitometry

Maturation and quality of seeds of an endangered tropical palm species (Euterpe edulis Martius) assessed by imaging and X-ray densitometry

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