Effect of different treatments on germination of Romi red grape seeds

Authors

  • H. H. Selim Horticulture Department, Cairo University, Cairo, Egypt
  • F. A. Ibrahim Horticulture Department, Cairo University, Cairo, Egypt
  • M. A. Fayek Horticulture Department, Cairo University, Cairo, Egypt
  • S. A. Sari El-Deen Horticulture Department, Cairo University, Cairo, Egypt
  • N. M. Gamal Horticulture Department, Cairo University, Cairo, Egypt

DOI:

https://doi.org/10.5073/vitis.1981.20.115-121

Abstract

Germination of seeds required a stratification period either at cold (5 ± 1 °C) or warm (18 ± 1 °C) conditions. Besides, production of normal seedlings (seedlings with plumule) needed stratification of at least 60 d. Cold stratification treatments increased pronouncedly the percentages of seed germination and normal seedlings when seeds were first subjected to warm stratification conditions. Soaking the seeds in IAA, IBA or Ethrel at different concentrations before sowing failed completely to produce normal seedlings. Conversely, the best results with respect to germination i;ercentage and normal seedlings were obtained with GA-, especially at 5000 ppm, followed by thiourea and kinetin. Applying GA3 to seeds immediately before stratification was more effective than adding it after stratification.

Der Einfluß verschiedener Behandlungsbedingungen auf die Samenkeimung bei der Rebsorte Romi red

Die Samen der Rebsorte Romi red keimten nur nach Stratifikation, entweder unter Kälte- oder unter Wärmebedingungen (5 ± 1 °C bzw. 18 ± 1 °C). Normale Sämlinge, d. h. solche mit Plumula, entwickelten sich nur bei einer Stratifikationsdauer von mindestens 60 d. Durch Kaltstratifikation wurde der Anteil keimender Samen und normaler Sämlinge bedeutend erhöht, wenn die Samen zuvor warmstratifiziert worden waren. Das Einweichen der Samen vor der Aussaat in unterschiedlichen Konzentrationen von IAA, IBA oder Ethrel förderte die Bildung normaler Sämlinge in keiner Weise. Umgekehrt wurden im Hinblick auf die Samenkeimung und die Bildung normaler Sämlinge die besten Ergebnisse mit GA3, vor allem in der Konzentration von 5000 ppm erzielt; auch Thioharnstoff und Kinetin zeigten einen positiven Einfluß. GA3-Behandlung der Samen unmittelbar vor der Stratifikation war wirksamer als danach.

Downloads

Published

2016-06-22

Issue

Vol. 20 No. 2 (1981): Vitis

Section

Article

License

The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.