Characterizing indigenous plant growth promoting bacteria and their synergistic effects with organic and chemical fertilizers on wheat (Triticum aestivum)

作者：Israr Asghar, Maqsood Ahmed, Muhammad Ansar Farooq, Muhammad Ishtiaq, Muhammad Arshad, Muhammad Sohail Akram, Adnan Umair, Abdulwahed Fahad Alrefaei, Muhammad Yousuf Jat Baloch, Aamna Naeem · 发表于：Frontiers in Plant Science · 年份：2023 · DOI：10.3389/fpls.2023.1232271 · 被引用次数：20 · 研究领域：Legume Nitrogen Fixing Symbiosis、Plant-Microbe Interactions and Immunity、Agricultural Development and Management

The excessive use of chemical fertilizers is deteriorating both the environment and soil, making it a big challenge faced by sustainable agriculture. To assist the efforts for the solution of this burning issue, nine different potential native strains of plant growth-promoting bacteria (PGPB) namely, SA-1( Bacillus subtilis) , SA-5 ( Stenotrophomonas humi) ,SA-7( Azospirillum brasilense ), BH-1( Azospirillum oryzae ), BH-7( Azotobacter armeniacus ), BH-8( Rhizobium pusense ), BA-3( Azospirillum zeae ), BA-6( Rhizobium pusense ), and BA-7( Pseudomonas fragi ) were isolated that were characterized morphologically, biochemically and molecularly on the basis of 16S rRNA sequencing. Furthermore, the capability of indigenous PGPB in wheat ( Triticum aestivum , Chakwal-50) under control, DAP+FYM, SA -1,5,7 , BH -1,7,8 , BA -3,6,7 , DAP+ FYM + SA -1,5,7 , DAP+FYM+ BH -1,7,8 and DAP+FYM+ BA -3,6,7 treatments was assessed in a randomized complete block design (RCBD). The results of the study showed that there was a significant increase in plant growth, nutrients, quality parameters, crop yield, and soil nutrients at three depths under SA -1,5,7 , BH -1,7,8 , and BA -3,6,7 in combination with DAP+FYM. Out of all these treatments, DAP+ FYM + BA -3,6,7 was found to be the most efficient for wheat growth having the highest 1000-grain weight of 55.1 g. The highest values for plant height, no. of grains/spike, spike length, shoot length, root length, shoot dry weight, root dry weight, 1000 g...