Soil-Applied Boron Combined with Boron-Tolerant Bacteria (Bacillus sp. MN54) Improve Root Proliferation and Nodulation, Yield and Agronomic Grain Biofortification of Chickpea (Cicer arietinum L.)
| Autor: | Ali Tan Kee Zuan, Waqas Ahmed Minhas, Tauqeer Ahmad Yasir, Mubshar Hussain, Noman Mehboob, Saleh A. Al-Farraj, Muhammad Asif Naveed, Shahid Farooq |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
plant growth promoting rhizobacteria
Geography Planning and Development Population Biofortification TJ807-830 Root system Management Monitoring Policy and Law engineering.material Biology Rhizobacteria TD194-195 Renewable energy sources agronomic biofortification GE1-350 nodulation education education.field_of_study Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Inoculation grain yield Environmental sciences Horticulture Soil water engineering Fertilizer Calcareous |
| Zdroj: | Sustainability Volume 13 Issue 17 Sustainability, Vol 13, Iss 9811, p 9811 (2021) |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su13179811 |
| Popis: | Chickpea is widely cultivated on calcareous sandy soils in arid and semi-arid regions of Pakistan however, widespread boron (B) deficiencies in these soils significantly decreases its productivity. Soil application of B could improve chickpea yield and grain-B concentration. However, optimizing suitable B level is necessary due to a narrow deficiency and toxicity range of B. Nonetheless, the co-application of B-tolerant bacteria (BTB) and synthetic B fertilizer could be helpful in obtaining higher chickpea yields and grain-B concentration. Therefore, this study optimized the level of soil applied B along with BTB, (i.e., Bacillus sp. MN54) to improve growth, yield and grain-B concentrations of chickpea. The B concentrations included in the study were 0.00 (control), 0.25, 0.50, 0.75 and 1.00 mg B kg−1 soil combined with or without Bacillus sp. MN54 inoculation. Soil application of B significantly improved root system, nodulation, yield and grain-B concentration, and Bacillus sp. MN54 inoculation further improved these traits. Moreover, B application at a lower dose (0.25 mg B kg−1 soil) with BTB inoculation recorded the highest improvements in root system (longer roots with more roots’ proliferation), growth, nodulation and grain yield. However, the highest grain-B concentration was recorded under a higher B level (0.75 mg B kg−1 soil) included in the study. Soil application of 0.25 mg B kg−1 with Bacillus sp. MN54 inoculation improved growth and yield-related traits, especially nodule population (81%), number of pods plant−1 (38%), number of grains plant−1 (65%) and grain yield (47%) compared with control treatment. However, the grain-B concentration was higher under the highest B level (1.00 mg kg−1 soil) with Bacillus sp. MN54 inoculation. In conclusion, soil application of 0.25 mg B kg−1 with Bacillus sp. MN54 inoculation is a pragmatic option to improve the root system, nodule population, seedling growth, yield and agronomic grain-B biofortification of chickpea. |
| Databáze: | OpenAIRE |
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