Correlações fenotípicas entre caracteres vegetativos e de produção de palmito da palmeira real australiana

Uzzo, Roberta Pierry; Bovi, Marilene Leão Alves; Spiering, Sandra Heiden; Saes, Luis Alberto

doi:10.1590/s0103-90162002000300015

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Wide morphological variability in fruit morphology is typical of wild, non-selected species, and is indicative of high genetic diversity, which was confirmed by work with molecular markers performed in the same region of this study (SANTOS et al, 2014). The high variability that exists in natural populations allows for rapid and significant gains in genetic improvement programs during the first phases of selection (UZZO et al, 2002;BORÉM;MIRANDA, 2005;GROSS;OLSEN, 2010) and could favor the economic development of A. vitrivir.…”

Section: Discussionmentioning

confidence: 99%

Fruit Morphology and Productivity of Babassu Palms in Northern Minas Gerais State, Brazil1

et al. 2015

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-The objectives of this study were to morphologically characterize fruits of the babassu palm tree (Attalea vitrivir) and to estimate their productivity in the north of Minas Gerais State, Brazil. Twenty mature fruits were collected from 10 plants in three different areas in Januária, Minas Gerais. Eighteen biometric parameters of the fruits were measured, the oil contents of the seeds was determined, the adherence to normal distribution was evaluated, distribution frequencies were evaluated and the effects of individuals and areas on the variables and the correlations between them were analyzed. The production of fruit bunches per plant and the number of fruits per bunch from 10 plants were quantified in three areas and the potential production under both natural harvesting and cultivation conditions were estimated. Significant differences were found among all of the biometric parameters examined between the different individuals and the different areas, which shows wide morphological variability in the fruits. The average oil content was 45.7%, but with significant differences among individuals. The observed variability favors the selection of productive individuals in genetic improvement programs. The potential productivity of endocarps and oil based on a density of 400/plants per hectare would be respectively 6.4 and 1.2 tons/ha, which indicates the possibility of using A. vitrivir for producing charcoal, bio fuels, and for carbon fixation.Keywords: Attalea vitrivir; Fruit biometry; Oil content. MORFOLOGIA DOS FRUTOS E PRODUTIVIDADE DE BABAÇU NO NORTE DE MINAS GERAIS, BRASILRESUMO -Os objetivos deste trabalho foram caracterizar morfologicamente os frutos de babaçu e estimar a sua produtividade (Attalea vitrivir) no Norte de Minas Gerais. Foram coletados 20 frutos maduros de 10 plantas em três áreas, no Município de Januária, MG. Mensuraram-se 18 parâmetros biométricos dos frutos, determinou-se o teor de óleo das sementes e avaliaram-se a aderência à distribuição normal, a distribuição de frequência e a correlação entre as variáveis e o efeito do indivíduo e da área. Quantificou-se a produção de cachos por planta e de frutos por cacho em 10 plantas, nas três áreas, e estimou-se a produtividade potencial em condição de extrativismo e de cultivo. Em todas as variáveis biométricas estudadas, houve diferença significativa entre os indivíduos e áreas, evidenciando-se grande variabilidade na morfologia dos frutos. O teor médio de óleo foi de 45,7%, com diferença significativa entre os indivíduos. A grande variabilidade encontrada favorece, em programas de melhoramento, a seleção de indivíduos mais produtivos. A produtividade potencial de endocarpo e óleo em densidade de 400 plantas/ha é de 6,4 e 1,2 t/ha, respectivamente, o que amplia a possibilidade de uso de A. vitrivir na produção de carvão, na indústria de biocombustíveis e na fixação de carbono.Palavras-chave: Attalea vitrivir; Biometria de frutos; Teor de óleo.

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Section: Discussionmentioning

confidence: 99%

Fruit Morphology and Productivity of Babassu Palms in Northern Minas Gerais State, Brazil1

et al. 2015

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“…Also, in E. oleracea, Oliveira et al (2000) found that the stipe diameter and the number of live leaves were correlated with production traits, enabling early selection for the species. In Archontophoenix alexandrae, significant positive correlations were found between vegetative traits, such as stipe diameter, plant height, number of leaves, and the fourth sheet length, with direct components of palm heart production (Uzzo et al 2002). In addition, it was found that these correlations are valid since the beginning of cultivation, indicating the possibility of early selection of superior plants for the fruit production on the stipe diameter, the height, and the number of tillers (Bovi et al 1990).…”

Section: Genetic Parameters Based On Joint Analysismentioning

confidence: 92%

Estimates of genetic parameters for juvenile traits in macaw palm

Lustri

Siqueira²,

Azevedo

et al. 2021

Bragantia

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Acrocomia aculeata (Jacq.) Lodd. ex. Mart. (Arecaceae) is a neotropical oil palm of widespread occurrence in the American continent and with great economic potential for the energy and food sectors. Genetic breeding studies for the species are very recent, with a need for basic knowledge from the genetic diversity in agronomic traits. Thus, the aim of this work was to estimate genetic variance, heritability, and genetic gain as well as to propose strategies of selection. Two-year evaluations of eight agromorphological characteristics were carried out in two experimental fields composed of 50 open-pollinated progenies. The results revealed moderate heritability for progeny average to thorn density in the abaxial side (ℎ " #$ % = 0.402 in Pindorama) and relative chlorophyll index (ℎ " #$ % = 0.458 in Presidente Prudente). The selective accuracy was 0.634 and 0.677 for the same traits, respectively. In the combined analysis, the higher values of heritability were obtained to thorn density on the abaxial region of leaves and relative chlorophyll index (0.616 and 0.666, respectively).Moderate to high magnitude values of genetic gain was reached for traits with greatest agronomic interest, as plant height G s (%) = 19.64, number of leaves G s (%) = 26.43, stipe diameter at breast height G s (%) = 12.51, and relative chlorophyll index G s (%) = 38.12. In conclusion, the results indicate considerable genetic variability for the evaluated traits and suggest that their most effective use for the purpose of genetic gains would be based on the combined selection between and within progenies.

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Genetic diversity of Syagrus coronata and principal component analysis of phenotypic traits: a palm from the brazilian semiarid biome

et al. 2023

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Correlações fenotípicas entre caracteres vegetativos e de produção de palmito da palmeira real australiana

Cited by 3 publications

References 4 publications

Fruit Morphology and Productivity of Babassu Palms in Northern Minas Gerais State, Brazil1

Fruit Morphology and Productivity of Babassu Palms in Northern Minas Gerais State, Brazil1

Estimates of genetic parameters for juvenile traits in macaw palm

Genetic diversity of Syagrus coronata and principal component analysis of phenotypic traits: a palm from the brazilian semiarid biome

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