Chiang Mai Journal of Science

Effects of Plant Growth Promoting Bacteria on the Growth and Yield of Jerusalem Artichoke (Helianthus tuberosus) Under Water Limitation Condition

Paper Type	Contributed Paper
Title	Effects of Plant Growth Promoting Bacteria on the Growth and Yield of Jerusalem Artichoke (Helianthus tuberosus) Under Water Limitation Condition
Author	Nuntavun Riddech, Sanun Jogloy, Wiyada Mongkolthanarak, Sophon Boonlue, Nutchanon Duangdech and Thanaporn Phibunwatthanawong
Email	nunrid@kku.ac.th
Abstract: The plant growth promoting properties of bacteria were investigated for siderophore, hydrogen cyanide, nitrogen fixer, phosphorus solubilizing and potassium solubilizing activities at various temperatures (30oC, 40oC and 50oC). The results showed that the bacterial strains Bacillus amyloliquefaciens subp. Plantarum B8, Bacillus tequilensis B24, Cronobacter sakazakii BFC8, Pseudomonas azotoformans C2-114 and Bacillus cereus H1702 were able to promote plant growth at these temperatures. Cellulase activity was presented in five bacterial isolates. In addition, ACC deaminase activity was found in all isolates at 30 oC, whilst this activity ended at 50 oC under non-stress and stress conditions. The effects of inoculation of 5 bacterial strains on the growth of Jerusalem artichoke (Helianthus tuberosus) under different water levels, field capacity (FC) and 50% FC, was also studied. The highest growth parameters of Jerusalem artichoke were observed in the treatment of bacteria immobilized on pulp paper sludge cake fertilizer under field capacity. However, no significant difference was found with chemical treatment under 100% FC and 50% FC. Those bacterial strains which immobilized on agricultural substrate were able to enhance the growth of Jerusalem artichoke under both normal and water limitation conditions.
Start & End Page	354 - 372
Received Date	2020-05-13
Revised Date
Accepted Date	2021-02-22
Full Text	Download
Keyword	field capacity (FC), Jerusalem artichoke, bio-fertilizer, PGPB, ACC deaminase
Volume	Vol.48 No.2 (March 2021)
DOI
SDGs
View:642 Download:544