Clonagem de quatro espécies de Annonaceae potenciais como porta-enxertos

Scaloppi, Erivaldo José; Martins, Antônio Baldo Geraldo

doi:10.1590/s0100-29452003000200026

Cited by 13 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Reduction in stomatal conductance decreases CO 2 absorption and water loss (Shimazaki et al, 2007) ), indicating the importance of stomatal activity in gas exchange. Lima Filho and Santos (2009) observed a reduction in gas exchange due to stomatal closure in Spondias spp.…”

Section: Experiments I (Dry Season)mentioning

confidence: 99%

“…Thus, the greater potential for vegetative growth achieved by these techniques (M2 and M3) (Figure 3) may be related to increased stomatal activity and photosynthesis, contributing to the increase in CO 2 uptake and instantaneous efficiency of carboxylation, since stomata regulate gas exchange (SHIMAZAKI et al, 2007). However, seedlings from cuttings with leaves showed a quadratic pattern of CO 2 uptake and instantaneous efficiency of carboxylation, which peaked at 87and 85 DAP, respectively, decreasing thereafter ( Figures 4 D and E).…”

Section: Experiments I (Dry Season)mentioning

confidence: 99%

“…Ramos et al (2008) observed that fig tree cuttings (Ficus carica L.), when collected in the fall, show a 55% reduction in rooting. According to Scaloppi Júnior & Martins (2003), collecting cuttings at the optimal time of year can improve adventitious rooting.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Growth and quality of Mollar pomegranate tree seedlings propagated by cuttings

et al. 2015

View full text Add to dashboard Cite

The seminiferous propagation of the pomegranate tree is dramatically affected by the presence of a sarcotesta, which often makes this method of propagation unfeasible. Therefore, the aim of this study was to evaluate the production of rootstocks for Mollar pomegranate cuttings under different management techniques in the dry and wet seasons. Two experiments were performed, one in the dry season (August to December 2012, Experiment I), and another in the rainy season (January to June 2013, Experiment II). The experiments used a completely randomized design with four replications and five seedlings per plot. To monitor plant growth and physiology, a factorial scheme using two factors, management of softwood cuttings (cuttings with leaves; cuttings without leaves; and cuttings without leaves, but with an incision at the base) and evaluation times (60, 70, 80, 90, and 100 days after planting [DAP] in Experiment I and 60, 70, 80, 90, 100, 110, 120, 130, 140, and 150 DAP in Experiment II) was adopted. The propagation material was collected from commercial plants, from the median portion of the branch. The cuttings were approximately 15 cm long. Cuttings without leaves with an incision at the base were more suitable for vegetative propagation of Mollar pomegranate trees, regardless of season (dry or wet). Seedlings grown in the rainy season had higher survival rates and higher root and shoot growth. The use of cuttings with leaves for the vegetative propagation of the Mollar pomegranate tree in the dry season is not feasible. The best time to transplant Mollar pomegranate tree seedlings, in the rainy season, is at 130 DAP, at an average height of 45 cm.

show abstract

Section: Experiments I (Dry Season)mentioning

confidence: 99%

Section: Experiments I (Dry Season)mentioning

confidence: 99%

See 1 more Smart Citation

Growth and quality of Mollar pomegranate tree seedlings propagated by cuttings

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Tricomas tectores simples, pluricelulares e unisseriados, com até 3 células, implantados em ambas as faces da lâmina, são mais abundantes J. D. R. SOARES et al sobre a nervura central na face abaxial. Estes tricomas possuem as funções de evitar a transpiração excessiva, de oferecer uma barreira contra ventos que podem diminuir a umidade relativa na superfície foliar e de proteger as folhas contra o excesso de água na superfície foliar (SILVA et al, 2005).…”

Section: Caracterização Anatômica Da Plantaunclassified

“…As diferentes espécies de plantas variam quanto ao número, frequência, tamanho, distribuição e forma dos estômatos, o que consequentemente interfere em sua capacidade fotossintética. Mesmo em uma única planta, as folhas variam quanto aos estômatos, dependendo de sua forma e da posição das folhas na copa (SILVA et al, 2005).…”

Section: Caracterização Anatômica Da Plantaunclassified

Caracterização anatômica e citométrica em biribazeiro (Rollinia mucosa [Jacq.])

Soares

Dias

Rodrigues³

et al. 2014

Rev. Bras. Frutic.

View full text Add to dashboard Cite

RESUMO -O biribazeiro (Rollinia mucosa [Jacq.]) é uma frutífera nativa da América Central e América do Sul que se destaca das demais espécies do gênero por apresentar frutos grandes e comestíveis. Tendo em vista que pouco se conhece a respeito da anatomia da planta, tipo de reserva da semente, como também sobre o conteúdo de DNA de espécies da família anonáceas, este trabalho teve por objetivos caracterizar histoquimicamente as sementes e anatomicamente as plântulas, e determinar o conteúdo de DNA de biribazeiro. As plântulas foram obtidas de sementes coletadas na região Amazônica pela Embrapa Roraima e enviadas à Universidade Federal de Lavras. Os frutos foram despolpados, e suas sementes foram previamente lavadas e semeadas em bandejas de 48 células, contendo como substrato pó de serragem, permanecendo em câmara de germinação a 30ºC por 90 dias. Nas plantas obtidas, procedeu-se à análise histoquímica, à caracterização anatômica e à determinação do conteúdo de DNA. As principais conclusões deste trabalho foram que: (1) as sementes da Rollinia mucosa apresentam reserva principal lipídica; (2) as secções transversais da lâmina foliar indicam organização dorsiventral, do tipo hipoestomática com estômatos paracíticos e tricomas em ambas as faces da folha; (3) as folhas de biribazeiro apresentam, em média, 4,77 pg de DNA. Termos para indexação: Anonaceae, anatomia, histoquímica, citometria fluxo. ANATOMICAL AND CYTOMETRIC CHARACTERIZATION IN BIRIBAZEIRO (Rollinia mucosa [Jacq.]) ABSTRACT -The biribazeiro (Rollinia mucosa [Jacq.]) is a native fruit of Central America and SouthAmerica that stands out from the other species of the genus because it has large and edible fruits. Considering that little is known about the anatomy of the plant, the type of reserve of the seed, as well as little is known about the DNA content of species of Annonaceae family, this study aimed to characterize seeds histochemically and seedlings anatomically, and determine DNA content of biribazeiro (Rollinia mucosa [Jacq.]). The seedlings were obtained from seeds collected in the Amazon region by Embrapa Roraima and then, sent to UFLA, Federal University of Lavras, Minas Gerais State. The pulp of the fruits were extracted and the seeds were previously washed and sown in trays of 48 cells containing sawdust as substrate, remaining in a germination chamber at 30°C for 90 days. A histochemical analysis, anatomical characterization and determination of DNA content of the plants obtained were made. The main conclusions of this research were: (1) the seeds of Biribazeiro (Rollinia mucosa) present mainly lipid reserve, (2) The cross-sections of the leaf blade indicate dorsiventral organization, hypostomatic with paracitic stomata and trichomes on both sides of the sheet (3) the leaves of biribazeiro have on average 4.77 pg of DNA.

show abstract