Flavan content of annual shoots affects graft-take success in walnut (Juglans regia)

Karadeniz T.

SOUTH AFRICAN JOURNAL OF BOTANY, vol.69, no.3, pp.292-294, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 69 Issue: 3
  • Publication Date: 2003
  • Doi Number: 10.1016/s0254-6299(15)30316-1
  • Journal Name: SOUTH AFRICAN JOURNAL OF BOTANY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.292-294
  • Karadeniz Technical University Affiliated: No

Abstract

The relationship between the total flavans (biflavan, catechin, epicatechin and oligomer flavans) and the graft-take in walnut was studied. Total flavans were determined by thin layer chromatography in the phloem tissues of annual shoots. Content of total flavans and percentage graft-take were recorded from November 1997 to October 1998. Following chip-budding, grafted plants were exposed to controlled conditions for one month. The total flavan contents ranged from 10.8 mg g(-1) in March to 14.1 mg g(-1) in May. Graft-take percentages varied from 32% in June to 100% in February. A negative correlation (r = -0.618) was found between total flavan content and graft-take.