Assessment of appropriate carrier material for the growth and survival of phosphate-solubilizing bacteria (Enterobacter cloacae) and their potential for improving growth of chilli (Capsicum annuum L.).

Autor: Laghari, Fahad Raza, Panhwar, Qurban Ali, Jamro, Ghulam Murtaza, Ali, Amanat, Rajpar, Inayatullah, Depar, Nizamuddin
Předmět:
Zdroj: Pakistan Journal of Agricultural Sciences; 2024, Vol. 61 Issue 1, p129-139, 11p
Abstrakt: The study was conducted to assess phosphate-solubilizing bacteria (PSB) inoculated various carrier materials and their effect on growth of chilli plants. The P-solubilizing ability was checked in broth media using by inorganic P-sources (tri-calcium P and phosphate rock). The identified PSB strain “Enterobacter cloacae” was selected by inoculating in different carrier materials Farm yard manure (FYM) based, compost and sugarcane press mud (SPM) to test their shelf life. The FYM based carrier material proved better material for PSB survival and selected for further studies. The application of PSB inoculated carrier material to chilli plants was assessed in pot study organized by Completely Randomized Design (CRD) under net-house conditions. The highest P-solubilizing ability (42.7%) was observed in tri-calcium P (NBRIP) media during incubation. The maximum viability of cell count was observed in FYM carrier during the incubation period. The maximum plant height (22.14 cm), root length (5.80 cm), plant fresh (1.33 g plant-1) and dry biomass (0.57 g plant-1) was observed with PSB inoculated carriers with 100% recommended P fertilizer (RPF) application. In experimental soil, the maximum viable cell count (9.01 log CFUg-1 soil) was observed in PSB inoculated carrier treatments. Nevertheless, higher organic matter (OM) (0.45 %) and P-content (25 ppm) were shown in PSB inoculated carrier material (100% RPF). Likewise, the higher plant P uptake (24.7 kg ha-1) was also observed in PSB inoculated carrier with 100 % RPF. Significantly there were no differences in agronomic parameters observed among 75 % and 100 % RPF with PSB inoculated carrier. Hence, it can be concluded that, inoculated PSB in carrier could be a potential material for PSB based bio-fertilizer/bio-inoculant integrated with 75 % of RPF for enhancing growth of chillies. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index