The effect of Plant Growth Promoting Rhizobacteria (PGPR) on rooting and root growth of tea (Camellia sinensis var. Sinensis) cuttings

ERTÜRK Y., ERCİŞLİ S., SEKBAN R., HAZNEDAR A., DONMEZ M. F.

ROMANIAN BIOTECHNOLOGICAL LETTERS, cilt.13, sa.3, ss.3747-3756, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 3
  • Basım Tarihi: 2008
  • Dergi Adı: ROMANIAN BIOTECHNOLOGICAL LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, Veterinary Science Database
  • Sayfa Sayıları: ss.3747-3756
  • Anahtar Kelimeler: auxin, PGPR, rooting, single node cuttings, tea, SEEDLINGS, INOCULATION, BACTERIA
  • Atatürk Üniversitesi Adresli: Evet

Özet

An attempt was made to induce rooting from cuttings of Camellia sinensis by 2000 ppm IBA and PGPR treatments under controlled conditions. The cuttings were prepared from three commercial tea clones, namely Pazar-20, Derepazari-7 and Tuglali-10 in both 2006 and 2007 years. The cuttings were sampled in July and treated with seven bacteria such as Bacillus RC23, Paenibacillus polymyxa RC05, Bacillus subtilis OSU142, Bacillus RC03, Comamonas acidovorans RC41, Bacillus megaterium RC01 and Bacillus simplex RC19 and 2000 ppm IBA. In vitro production of indole-3-acetic acid (IAA) by PGPR was also determined. The all bacteria showed indole-3-acetic acid (IAA) producing capacity and higher rooting percentages than control treatment. The highest rooting ratio was obtained from 2000 ppm IBA treatments in all clones. Among clones average the highest rooting were observed in Pazar-20 (67.90-70.32%), followed by Derepazari-7 (53.77-54.62%) and Tuglali-10 (22.73-28.58%), respectively. Bacillus simplex RC 19 and Paenibacillus polymyxa RC05 were more effective on rooting for Pazar-20 clone (76.06-76.50%), Paenibacillus polymyxa RC05 and Comamonas acidovorans RC41 for Derepazari-7 clone (57.20-63.00%) and Paenibacillus polymyxa RC05 and Bacillus megaterium RC01 treatments for Tuglali-10 clone (40.10-44.09%) in both years.