1. Efeito da espermina na qualidade fisiológica de sementes de alface / Effect of spermine on the physiological quality of seeds of lettuce

The objective of this study was to investigate the performance of growth regulators: Gibberellic acid, spermine and abscisic acid on germination and early growth of seedlings of lettuce cv. Grand Rapids. For this, experiments were conducted in greenhouse and laboratory. The seeds were treated with test solutions of gibberellic acid at a concentration of 0.5m

Publicado em: 2009

2. Physiology of Oil Seeds: II. Dormancy Release in Virginia-type Peanut Seeds by Plant Growth Regulators 1

Germination, ethylene production, and carbon dioxide production by dormant Virginia-type peanuts were determined during treatments with plant growth regulators. Kinetin, benzylaminopurine, and 2-chloroethylphosphonic acid induced extensive germination above the water controls. Benzylaminopurine and 2-chloroethylphosphonic acid increased the germination of th

3. Desiccation tolerance in seeds of Annona emarginata (Schldtl.) H. Rainer and action of plant growth regulators on germination

Annona emarginata (Schldtl.) H. Rainer ("araticum-de-terra-fria") is used as a rootstock for several species of Annonaceae. It is suggested that these seeds should be sown immediately after extraction and, therefore, they could be intolerant to desiccation. There are several mechanisms involved with desiccation tolerance. Soluble sugars, for example, can acc

Braz. J. Plant Physiol.. Publicado em: 2012-12

4. Qualidade de sementes de arroz híbrido tratadas com fungicida e ácido giberélico / Storage potential of hybrid rice seeds treated with fungicide and giberelic acid

The rice economy growth has been provided by the technological gain, incluing the hybrid rice development, the use of chemycal products to patogens control and the use of vegetal growth regulators. This work摯瑬敳獩s objective is to evaluate of the physiologic quality of the Avaxi hybrid rice seeds, previous treated with fungicide and

Publicado em: 2006

5. Uvaieira Eugenia pyriformis Cambess micropropagation / MicropropagaÃÃo de uvaieira (Eugenia pyriformis Cambess).

The species Eugenia pyriformis Cambess presents potential to be explored as a fruity and ornamental plant as well as in environmental preservation. The objective of this research was to establish a protocol for its micropropagation. Higher effectiveness in the seed disinfestation process is achieved when seeds are treated with sodium hypochlorite after their

Publicado em: 2006

6. High Energy Charge as a Requirement for Axis Elongation in Response to Gibberellic Acid and Kinetin during Stratification of Acer saccharum Seeds 1

The growth potential of embryonic axes of Acer saccharum Marsh. increased during moist storage at 5 C but not at 20 C. During the period of increasing growth potential, the oxygen consumption of the axes remained constant. It was possible to distinguish three phases of the stratification-germination process at 5 C with respect to response of the axis to gibb

7. Micropropagação e anatomia foliar de Canela-de-Ema (Vellozia flavicans Mart. ex Schult f.-Velloziaceae) em diferentes condições ambientais

Canela-de-ema (Vellozia flavicans Mart. ex Schult. f.) is a shrub native of Brazilian Cerrado and presents great potential ornamental. Limitations in the conventional cultivation and the slow growth of the plant justify the use of techniques of tissue culture to propagate the species. The objective of this study was to establish a protocol for micropropagati

Publicado em: 2009

8. Efficient In Vitro Somatic Embryogenesis and Plant Regeneration from Mature and Immature Embryos of Wheat ( Triticum aestivum L.)

ABSTRACT An efficient regeneration system is a pre-requisite for the application of genetic transformation and functional genomics study of important plants. In this study, the effect of different factors (plant growth regulators, casein hydrolysate, aspartic acid and ascorbic acid) on in vitro embryogenesis and regeneration of Arta, Bahar and Zagros cultiva

Braz. arch. biol. technol.. Publicado em: 08/01/2018

9. Uso de reguladores de crescimento e controle biológico de fungos no feijoeiro cultivado em sucessão à diferentes culturas de cobertura / Use of growth regulators and biological control of fungi in the common bean cultivated in succession to different cover crops

In order to increase the productivity of the common bean crop several technologies are offered, but there is lack of studies to verify their efficiency. The objective of this work was to evaluate the effect of growth regulator and the biological control of fungi of the soil through Trichoderma sp., seeking larger productivity of the commom bean plant irrigat

Publicado em: 2008

10. Otimização da regeneração in vitro de Urochloa spp. via embriogênese somática

The establishment of an efficient methodology for regeneration in Urochloa spp via somatic embryogenesis is an essential step for genetic engineering works and to support the breeding programs of the signal grass. The aim of this study was to evaluate different concentrations of growth regulators on callus induction, somatic embryogenesis and plant regenerat

Biblioteca Digital de Teses e Dissertações da UNOESTE. Publicado em: 2014

11. Otimização da regeneração in vitro de Urochloa spp. via embriogênese somática

The establishment of an efficient methodology for regeneration in Urochloa spp via somatic embryogenesis is an essential step for genetic engineering works and to support the breeding programs of the signal grass. The aim of this study was to evaluate different concentrations of growth regulators on callus induction, somatic embryogenesis and plant regenerat

Biblioteca Digital de Teses e Dissertações da UNOESTE. Publicado em: 2014

12. Induction of Secondary Dormancy in Chenopodium bonus-henricus L. Seeds by Osmotic and High Temperature Treatments and Its Prevention by Light and Growth Regulators 1

Factors controlling the establishment and removal of secondary dormancy in Chenopodium bonus-henricus L. seeds were investigated. Unchilled seeds required light for germination. A moist-chilling treatment at 4 C for 28 to 30 days removed this primary dormancy. Chilled seeds now germinated in the dark. When chilled seeds were held in the dark in −8.6 bars p