Responses Growth and Yield of Three Shallot Cultivars in Sandy Coastal Land with PGPR (Plant Growth Promoting Rhizobacteria)

Sumiyati Tuhuteru, Endang Sulistyaningsih, Arif Wibowo


Plant Growth Promoting Rhizobacteria (PGPR) is a group of bacteria rhizosphere used to a biological fertilizer on agricultural activities. The purpose of this research got the kind of PGPR which was effective against the growth of three cultivars at sandy coastal land. The research was conducted from August - November 2015 in coastal sandy land Samas-Bantul. This research used a randomized block design (RCBD) with two factor such us cultivar of shallot and suspension PGPR. The first factors were the Crok cultivar, Tiron, and Tuk-tuk and the second factors were Control (without PGPR), PGPR isolates BP25.2 (Bacillus methylotrophic), BP25.6 (Bacillus amyloliquofaciens), BP25.7 (Bacillus subtilis), BrSM 4 (Burkholderia cepacian), and BrSG 5 (Burkholderia seminalis). Data were analyzed by using ANOVA α 5%. If there were a significant difference between treatments, so it was analyzedby DMRT α 5%. Results showed significant through interactions every variable generated, such as isolates BP25.2 that can enhance seed vigor index Tiron cultivars, isolates BrSG 5 and BP25.7 capable of inducing number of leaves in the vegetative phase and is capable of stimulating content proline in the face of stress shallot plant at sandy coastal, isolates BrSM 4 is able to increase the number of total chlorophyll Tuk-tuk cultivars and isolates BrSG 5 is able to increase the dry weight of bulbs production Tuk-tuk cultivars.


shallots; PGPR; sandy coastal land

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