An Analysis of the Function of the Leaf in the Process of Root Formation in Cuttings

Overbeek, J. van; Gordon, Solon A.; Gregory, Luis E.

doi:10.1002/j.1537-2197.1946.tb10351.x

Cited by 76 publications

(36 citation statements)

References 17 publications

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“…Van Overbeek et al [29] reported that the stimulation of root formation by the presence of leaves on cuttings of red hibiscus could be replaced by sucrose and organic or inorganic nitrogen. More recently, Welander [30] 230 used in vitro systems to show that root formation was stimulated in sugarbeet hypocotyls by increased levels of sucrose or inorganic nitrogen if indole-3-acetic acid (IAA) was present in high concentration (10rag/l)in the nledium.…”

Section: Introductionmentioning

confidence: 99%

The role of sucrose and nitrogen in adventitious root formation on cultured rose shoots

Hyndman

Hasegawa

Bressan

1981

Plant Cell Tiss Organ Cult

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Abstract. Cultured shoots of Rosa 'Improved Blaze' were used to determine the effects of sucrose and inorganic nitrogen on adventitious root formation. Shoots grown in media containing high sucrose concentrations (146.07-262.93 mM) produced more and longer roots than those grown in media containing 0-87.64 mM sucrose. This response to sucrose was related to the metabolism of sucrose rather than its osmotic properties since the use of mannitol and 3-0-methyl-a-D-glucopyranoside as osmotic substitutes did not reproduce the effect on rooting. The number and length of roots increased when the shoots were grown in media with the nitrogen concentration of the MurashigeSkoog (MS) salt formulation reduced from 60 to 7.5 mM. Neither nitrate (NO-3) nor ammonium (NH~) alone at any of the concentrations tested had the effect on rooting that both had together in the ratio of the MS salt formulation. When the sucrose and nitrogen concentrations were both varied, the greatest rate of root initiation occurred on shoots grown in media with a high sucrose to nitrogen concentration ratio.

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Section: Introductionmentioning

confidence: 99%

The role of sucrose and nitrogen in adventitious root formation on cultured rose shoots

Hyndman

Hasegawa

Bressan

1981

Plant Cell Tiss Organ Cult

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“…These facts indicate quite definitely that the seeds have a controlling influence on carbohydrate metabolism of the fruit and adjoining parts of the plant. An effect on carbohydrate content is usually obtained by the application of a growth regulator as is evidenced by the results secured with roots (4), leaves (22,23), stems (2,3,5,6,35), young floral organs (16), and stomata (20). MARRE (16) was able to substitute the application of indoleacetic acid for pollination and fertilization as regards an effect on amylase activity and synthesis of starch reserves in the fruit of Erodium and Pelargonium.…”

Section: Introductionmentioning

confidence: 99%

Carbohydrate Metabolism in the Tomato Fruit as Affected by Pollination, Fertilization and Application of Growth Regulators

Marrè

Murneek

1953

Plant Physiol.

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“…Da mesma forma, estacas medianas (30,803cm A relação entre a manutenção de folhas e o enraizamento pode ser confirmada por Van Overbeek et al (1946), uma vez que as folhas são fonte de auxinas e nutrientes para a formação de raízes nas estacas. Da mesma forma, Wilkins et al (1995) acrescentam que a prevenção da morte das folhas pode aumentar significativamente o crescimento e desenvolvimento do sistema radicular.…”

Section: Resultsunclassified

Enraizamento de estacas de atemoieira ‘Gefner’ tratadas com auxinas

et al. 2008

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, EDSON TADASHI SAVAZAKI 5 RESUMO-A propagação da atemóia deve ser feita assexuadamente e, nesse contexto, a estaquia surge como alternativa. Dessa forma, objetivou-se determinar a parte do ramo de atemoieira (Annona cherimola Mill. x Annona squamosa L.) cv. 'Gefner' mais apropriada para estaquia. O delineamento experimental foi o inteiramente casualizado, em esquema fatorial 3x3 (reguladores x tipos de estaca), com 5 repetições de 12 estacas. Os reguladores utilizados foram AIB 0,5% e ANA 0,5%, aplicados na forma de talco na base das estacas, além da testemunha. Os diferentes tipos de estacas foram retirados de 3 regiões do caule (apical, mediana e basal). As estacas tratadas foram colocadas para enraizar em bandejas de poliestireno contendo substrato comercial Plantmax ® e levadas para câmara de nebulização intermitente, onde permaneceram durante 136 dias. As variáveis avaliadas foram: porcentagem de estacas vivas, porcentagem de estacas vivas com enraizamento, porcentagem de estacas enraizadas com folhas remanescentes, com brotações e com folhas remanescentes + brotações, porcentagem de estacas enraizadas sem folhas, número, comprimento médio e massa da matéria seca de raízes por estaca enraizada, área foliar e massa da matéria seca de folhas remanescentes e brotações. A atemoieira apresenta maior potencial para formação de mudas por estaquia empregando-se estacas apicais sem tratamento e medianas tratadas com ANA (0,5%). Termos para indexação: propagação, tipo de estaca, Annona cherimola Mill. x Annona squamosa L. ROOTING OF ATEMOYA 'GEFNER' CUTTINGS TREATED WITH AUXINSABSTRACT -Atemoya propagation must be done asexually; in this context, cutting represents an alternative. This work aimed to verify the most appropriate branch part of atemoya (Annona cherimola Mill. x Annona squamosa L.) cv. 'Gefner' for cutting. The experimental design was completely randomized, in a 3x3 factorial arrangement (plant growth regulators x cutting types), with 5 replicates of 12 cuttings. The plant growth regulators IBA 0.5% and NAA 0.5% were applied as talc in the base of cuttings, besides the control. The different cutting types were taken from three stem regions (apical, medial and basal). The treated cuttings were placed in polystyrene trays containing Plantmax ® commercial substrate to allow rooting and taken to an intermittent mist chamber, where they were kept for 136 days. The assessed variables were: percentage of live cuttings; percentage of live cuttings with rooting; percentage of rooted cuttings with remaining leaves, sprouts, and remaining leaves + sprouts; percentage of rooted cuttings without leaves; root number, average length and dry matter mass per rooted cutting; leaf area; and dry matter mass of remaining leaves and sprouts. Atemoya presents higher potential for seedling production using apical cuttings without treatment and medial cuttings treated with NAA (0.5%).

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An Analysis of the Function of the Leaf in the Process of Root Formation in Cuttings

Cited by 76 publications

References 17 publications

The role of sucrose and nitrogen in adventitious root formation on cultured rose shoots

The role of sucrose and nitrogen in adventitious root formation on cultured rose shoots

Carbohydrate Metabolism in the Tomato Fruit as Affected by Pollination, Fertilization and Application of Growth Regulators

Enraizamento de estacas de atemoieira ‘Gefner’ tratadas com auxinas

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