Alocação de recursos (carboidratos) no desenvolvimento inicial de plântulas de Schizolobium parahyba (Vell.) S.F. Blake (Fabaceae - Caesalpinioideae)

Weidlich, Emanuela Wehmuth Alves; Pescador, Rosete; Uhlmann, Alexandre

doi:10.1590/s0100-67622010000400007

Cited by 8 publications

(7 citation statements)

References 11 publications

(9 reference statements)

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“…S.F. Blake (Weidlich et al, 2010). It is worth emphasizing that the source (leaf): drain (flowers) ratio may be altered by an increase or reduction in source strength (photosynthetic rate) or drain strength (assimilate requirement), which interferes with the balance between the growth of vegetative and generative compartments in the plant (Duarte et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Morphophysiological characterization of leaves and inflorescences of commercial mini chrysanthemum varieties

2020

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Chrysanthemum is among the oldest plants cultivated by man, being widely cultivated in Brazil. In view of its economic importance and use in breeding, the present study aims to characterize mini chrysanthemum varieties, focusing on morphological and physiological parameters. Therefore, four varieties of mini chrysanthemums, in pots, were acquired in the local market: V1 - ‘Swifty Light Pink’ (purple), V2 - ‘Diablo Time’ (red), V3 - ‘White Cherie’ (white); V4 - ‘Giovanni’ (yellow), from which they were taken leaves and inflorescences samples for measurement of height, diameter and fresh mass, as well as to quantify the total soluble sugar (TSS, %), reducing sugar (RS, %), non-reducing sugar (NRS, %), anthocyanin and chlorophyll contents. Regarding the characterization of inflorescences, it was found that ‘Diablo Time’ had the largest diameter, height and fresh weight, in these last two cases not differing from ‘Giovanni’, which had lower anthocyanin content; while the highest values of carbohydrate content were found in ‘White Cherie’. In relation to the characterization of the leaves, ‘Giovanni’ had the largest dimensions, fresh mass and chlorophyll content. Already ‘Swifty Light Pink’ stood as to the sugar contents. Thus, it is clear that there are morphophysiological differences between the chrysanthemum mini varieties, which can contribute to breeding programs.

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Section: Resultsmentioning

confidence: 99%

Morphophysiological characterization of leaves and inflorescences of commercial mini chrysanthemum varieties

2020

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“…3). Isto evidenciou o padrão de crescimento da espécie, confirmado também por Weidlich et al (2010), que verificaram aumento nos teores de açúcares solúveis totais, nos teores de amido nos hipocótilos e epicótilos, o que coincidiu com a redução da quantidade de amido nos cotilédones. Além disso, tais autores demonstraram que altos teores de açúcares solúveis alocados para epicótilos são necessários para suprir a demanda de rápido crescimento dessa espécie pioneira.…”

Section: Fontesunclassified

EMERGÊNCIA E CRESCIMENTO INICIAL DE PLÂNTULAS DE GUAPURUVU (Schizolobium parahyba (Vell.) Blake) A PARTIR DE DIFERENTES RECIPIENTES E TAMANHOS DE SEMENTES

Corrêa¹,

Dias²

2021

Glob. Sci. Technol.

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The seed size and the substrate volume of containers can affect the quality of seedlings produced. The objective of this study was to evaluate the effect of seed size and substrate volume for seedling production on the emergence of Schizolobium parahyba seedlings (guapuruvu), initial growth, and dry mass accumulation of seedlings. Seeds were collected directly from the ground and were classified as small, medium, and large, being sown in containers with different substrate volumes (0.17 L, 0.34 L, and 0.75 L). The growth analysis and dry matter production were collected 14, 21, 28, and 35 days after sowing. The seed's water content of 4.14%. The smaller the seed size, the smaller their percentage and speed of emergence. There was no effect of substrate volume on seedling emergence, regardless of seed size. Seedlings' height, stem diameter, and dry matter increased linearly with time and substrate volume. With higher substrate volume and large seeds, S. parahyba seedlings have a higher emergence, initial growth, and dry matter production.

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“…According to Coradin et al (2011), S. parahyba is a pioneer, heliophile species, and is undemanding in edaphic conditions. Weidlich et al (2010) evaluated the allocation of resources in the initial development of S. parahyba seedlings and found high levels of soluble sugars allocated to epicotyls, which are necessary to enable the fast growth of S. parahyba as a pioneer species. These characteristics may explain, at least partially, its advantage in relation to the other species.…”

Section: Experiments 2: Enrichment Plantingmentioning

confidence: 99%

Initial Development of Five Tree Species Native to the Atlantic Forest in Recomposition Plantations in Southern Brazil

Maffra

Turchetto

Cantarelli

2020

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The regularization of rural properties in the molds of the New Forest Code depends on the silvicultural study of the native species of the Brazilian biomes. The objective of this study was to evaluate the initial growth of five native tree species of the Atlantic Forest, with a view to their use in forest restoration projects. The following species were produced in the nursery, planted in the field, and evaluated for performance: Araucaria angustifolia, Mimosa scabrella, Trichilia claussenii, Schizolobium parahyba, and Cordia trichotoma. These species were distributed in two different areas, based on the randomized block experimental design. In experiment 1, the species A. angustifolia, M. scabrella, and C. trichotoma were distributed in three randomized blocks, each composed of 11 plants of each species. In experiment 2, the species A. angustifolia, M. scabrella, T. claussenii, and S. parahyba were distributed in three randomized blocks, each one composed of five plants of each species. In general, S. parahyba and M. scabrella showed faster development than the other species and, in this regard, are promising candidates for forest areas constitution or reconstitution in which there is interest in obtaining economic returns in less time. Araucaria angustifolia and T. claussenii showed relatively low development, whereas C. trichotoma showed intermediate development in relation to the other species studied. Despite their differences in performance, all species proved to be suitable for use in reforestation, mainly in the region where the study was developed.

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Alocação de recursos (carboidratos) no desenvolvimento inicial de plântulas de Schizolobium parahyba (Vell.) S.F. Blake (Fabaceae - Caesalpinioideae)

Cited by 8 publications

References 11 publications

Morphophysiological characterization of leaves and inflorescences of commercial mini chrysanthemum varieties

Morphophysiological characterization of leaves and inflorescences of commercial mini chrysanthemum varieties

EMERGÊNCIA E CRESCIMENTO INICIAL DE PLÂNTULAS DE GUAPURUVU (Schizolobium parahyba (Vell.) Blake) A PARTIR DE DIFERENTES RECIPIENTES E TAMANHOS DE SEMENTES

Initial Development of Five Tree Species Native to the Atlantic Forest in Recomposition Plantations in Southern Brazil

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