Genetic variability among jarina palm (Phytelephas macrocarpa Ruíz &amp; Pavón) progenies based on seed, germination and seedling characteristics

Ferraz, Pedro de Albuquerque; Ferreira, Sidney Alberto do Nascimento; Ferreira, Evandro José Linhares; Ticona-Benavente, César Augusto; Carvalho, Josiane Celerino de

doi:10.1590/2317-1545v43251724

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…According to Rodrigues et al (2015), the biometric characteristics can provide information necessary for the selection of seeds of greater size and mass since these parameters have contributed to greater success in germination and vigor tests of some palm tree species. Ferraz et al (2021) found that morphophysiological characteristics of seeds, germination and seedlings are useful to detect genetic variability among Phytelephas macrocarpa Ruíz & Pavón progenies.…”

Section: Discussionmentioning

confidence: 99%

GERMINATION AND POST-SEMINAL DEVELOPMENT OF Astrocaryum murumuru MART. PROGENIES

2022

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Astrocaryum murumuru is a palm tree whose seeds have been exploited in an extractive way by traditional populations in the Amazon, providing raw material to the cosmetic industry, with lack of information about its propagation. Thus, the aim of this study was to characterize seeds, germination, and seedling development of different A murumuru progenies. Seeds from six racemes from different plants were used, which were physically characterized and sown in a completely randomized design, with six treatments (progenies) and four replicates. Description, illustration, and quantification of the mean time of the different seedling stages were performed. On average, the diameter, length, and mass of soaked seeds were 17.1 ± 1.2 mm, 28.4 ± 5.8 mm, and 3.3 ± 0.6 g, respectively. A. murumuru germination is of adjacent type, with the cotyledon sheath developing next to the seed. Seedling development took an average of 46 ± 28 days to reach the germinative bud stage and 225 ± 38 days to reach the third expanded eophyll stage. The emergence of the first cataphyll (normal seedling) ranged from 12 to 73% among progenies, which occurred in an average time of 73 ± 29 days. There is a need to improve the processing of A. murumuru seeds aiming to reduce seed loss during this process, as well as studies on seed dormancy. Progenies showed variation regarding the physical and physiological characteristics of seeds and seedlings. Germination and seedling development can be considered slow, with variable times among progenies.

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Section: Discussionmentioning

confidence: 99%

GERMINATION AND POST-SEMINAL DEVELOPMENT OF Astrocaryum murumuru MART. PROGENIES

2022

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Biometry and storage of Triangle Palm seeds

Souza*,

Vieira,

Braga

et al. 2023

Ornam. Hortic.

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Studies on biometry are considered important tools for understanding the germination process of seeds. Moreover, the ex-situ conservation of palm seeds can cause loss of viability over time. The present study aimed to evaluate the biometric characterization and the effect of storage on the seed germination of the Triangle Palm (Dypsis decaryi), a widely used species in Brazilian landscaping. Two independent studies were conducted: I) biometric characterization of diaspores and II) effect of storage in seed germination. For biometry, a sample of 100 diaspores was used and the length, width and thickness were measured. Biometric data were analyzed using descriptive statistics and correlation analysis. The seeds were packed in transparent plastic bags kept in a refrigerator (20 ± 2 ºC and 80% relative humidity) for storage evaluation. The experimental design was entirely randomized. The treatments consisted of six storage periods (0 - control, 30, 60, 90, 120 and 150 days); there were four repetitions and 25 seeds per plot. The germination percentage and germination speed index were evaluated. Diaspores showed little variation in their biometric characteristics, with a mean of 18.39 mm in length, 16.10 mm in width and 15.96 mm in thickness. There was significant and positive correlation between all biometric characteristics. It was observed that germination remained stable until 30 days of storage (90%), with a gradual percentage decrease in later periods. The seed storage allowed to maintain its viability and longevity with the ability to germinate, reaching a germination percentage of 63% after 150 days of storage.

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Genetic variability among jarina palm (Phytelephas macrocarpa Ruíz & Pavón) progenies based on seed, germination and seedling characteristics

Cited by 2 publications

References 19 publications

GERMINATION AND POST-SEMINAL DEVELOPMENT OF Astrocaryum murumuru MART. PROGENIES

GERMINATION AND POST-SEMINAL DEVELOPMENT OF Astrocaryum murumuru MART. PROGENIES

Biometry and storage of Triangle Palm seeds

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