Document Type : Research Paper

Authors

1 M.Sc. Student of agroecology, Department of Agriculture, Ramhormoz Branch, Islamic Azad University, Ramhormoz, Iran

2 Assistance Professor, Department of Agriculture, Ramhormoz branch, Islamic Azad University, Ramhormoz,, Iran

Abstract

In order to investigate the possibility of reducing the negative effects of late-season heat stress using phosphate-solubilizing bacteria, this experiment is carried out as split factorial based on a complete randomized block design with three replications in a farm located in Haftkol city under the supervision of Ramhormoz Islamic Azad University, during the growing season 2016-2017. The main factor consists of planting date in two levels (22 November and 2 January) and the sub factors as a factorial consisted of five bread wheat cultivars (Chamran2, Mehregan, Sirvan, Shush and Barat) and of two levels application of phosphate solubilizing bacteria (inoculation and without inoculation). The results show that with a delay in planting and occurrence of heat stress in grain filling period, grain yield, biological yield, harvest index, and effective grain filling period are decreased and grain filling rate is increased. Also, the reaction intensity has varied depending on the cultivar. Mehregan cultivar has high yield in both planting dates and in the delayed planting date with the highest increase in grain filling rate and the lowest decrease in number of seeds per spike, had the highest grain yield and harvest index. By inoculating the seeds with bacteria, on both planting dates, on average, the number of seeds per spike is increased by 4.6%, grain yield by 7.6%, and biological yield by 7%, but the interaction effect between planting date, cultivar and bacteria on yield and its related traits is not significant. Therefore, the effect of phosphate solubilizing bacteria on mitigating the effect of heat stress is not proven and the positive effect of bacteria is the same on both planting dates. Overall, in this study, higher ability to increase grain filling speed and maintain more grain number per spike are identified as two important traits for achieving higher grain yield under late-season heat stress conditions.

Keywords

Abd El-Daim, I. A., Bejai, S., Fridborg, I., & Meijer, J. (2018). Identifying potential molecular factors involved in Bacillus amyloliquefaciens 5113 mediated abiotic stress tolerance in Wheat. Plant Biology, 20(2), 271-279. DOI: 10.1111/plb.12680
Ali, S. Z., Sandhya, V., Grover, M., Linga, V. R., & Bandi, V. (2011). Effect of inoculation with a thermotolerant plant growth promoting Pseudomonas putida strain AKMP7 on growth of Wheat (Triticum spp.) under heat stress. Journal of Plant Interactions, 6(4), 239-246. https://doi.org/10.1080/17429145.2010.545147
Altenbach, S. B., Dupont, F. M., Kothari, K. M., Chan, R., Johnson, E. L., & Lieu, D. (2003). Temperature, water and fertilizer influence the timing of key events during grain development in a US spring Wheat. Journal of Cereal Science, 37(1), 9-20. https://doi.org/10.1006/jcrs.2002.0483
Asgari, K., Dastan, S., Ajam noroozi, H., & Ghanbari, A. (2016). Effects of grain growth characteristic and yield components on Wheat yield in Golestan provinces climatic condition. Quarterly Journal of Plant Production Science, 6(2), 33-40. http://jpps.iau-shoushtar.ac.ir/article_535948_en.html (in Persian)
Cossani, C. M., & Reynolds, M. P. (2012). Physiological traits for improving heat tolerance in Wheat. Plant Physiology, 160, 1710-1718. https://doi.org/10.1104/pp.112.207753
Dias, A. S., & Lidon, F. C. (2010). Bread and durum Wheat tolerance under heat stress: a synoptical overview. Emirates Journal of Food Agriculture, 22(6), 412-436. https://doi.org/10.9755/ejfa.v22i6.4660
Dutkiewicz, J., Mackiwicz, B., Lemieszek, M. K., Golec, M., & Milanowski, J. (2016). Pantoea agglomerans: a mysterious bacterium of evil and good. Part IV. Beneficial effects. Annals of Agricultural and Environmental Medicine, 23(2), 206- 222. https://doi.org/10.5604/12321966.1203879
Ebadzadeh, H. (Ed.). (2016). Investigating the statistics of area harvested and production quantity of field crops during 36 years (1978-2014). Iran, Ministry of Agriculture- Jahad, Deputy for Planning & Economic Affairs. (in Persian)
Eisvand, H. R., Kamaei, H., & Nazarian, F. (2018). Chlorophyll fluorescence, yield and yield components of bread Wheat affected by phosphate bio-fertilizer, zinc and boron under late-season heat stress. Photosynthetica, 56(4), 1287-1296. https://doi.org/10.1007/s11099-018-0829-1
Farooq, M., Bramley, H., Palta, J. A., & Siddique, H. M. (2011). Heat stress in wheat during reproductive and grain-filling phases. Critical Reviews in Plant Sciences, 30(6), 491-507. https://doi.org/10.1080/07352689.2011.615687
Ghaderi, M. Gh., Zeinaali Khanghahi, H., Hosseinzadeh, A. H., Taleei, A. R., & Naghavi, M. R. (2009). Evaluation of relationships between grain yield, yield components and the other charavteristics associated with grain yield in bread Wheat using multivariate statistical analysis. Iranian Journal of Field Crops Research, 7(2), 573-582. (in Persian)
Ghatei, A., Bakhshandeh, A., Abdali Mashhadi, A. R., Siadat, S. A., Alami saeid, K., & Gharineh, M. H. (2017). Effect of nitrogen fertilizer and cytokinin application on grain yield and physiological traits of Wheat (Triticum aestivum L. cv. Chamran) under terminal heat stress condition. Iranian Journal of Crop Sciences, 18(4), 273-287. (in Persian)
HanumanthaRao, B., Nair, R. M., & Nayyar, H. (2016). Salinity and high temperature tolerance in Mungbeen (Vigna radiate L.) from a physiological perspective. Frontiers in Plant Science, 7(957), 1-20. https://doi.org/10.3389/fpls.2016.00957
Hashemi-Dezfoli, A., & Marashi, A. (1995). Assimilate changes in flowering time and its impact on growth, grain yield and yield components. Journal of Agricultural Science and Technology, 9(1), 16-32. (in Persian)
Kamaei, H., Eisvand, H. R., & Nazarian, F. (2018). Effects of planting date, bio-fertilizer containing P solubilizing bacteria and elements foliar application of zinc and boron on physiological and agronomic traits of bread Wheat (Aflak cultivar). Iranian Journal of Field Crops Research, 16(1), 165-179. (in Persian)
Khalilzadeh, R., Seyed Sharifi, R., & Jalilian, J. (2016). Effect of cycocel and bio fertilizers on quantitative and qualitative yield, rate and grain filling period of wheat under water limitation conditions. Crop Physiology Journal, 31(8), 41-60. (in Persian)
Koocheki, A., & Nassiri Mahallati, M. (2016). Climate change effect on agricultural production of Iran: II. Predicting productivity of field crops and adaptation strategies. Iranian Journal of Field Crops Research, 14(1), 1-20. https://doi.org/10.22067/gsc.v14i1.51157 (in Persian)
Koocheki, A., Nassiri Mahallati, M., & Jafari, L. (2016). Evaluation of climate change effect on agricultural production of Iran: I. Predicting the future agroclimatic conditions. Iranian Journal of Field Crops Research, 13(4), 651-664. https://doi.org/10.22067/gsc.v13i4.51156 (in Persian)
Mansoori, I. (2013). Response of promising line N8119 of Wheat to application of phosphate bio-fertilizer. Journal of Crops Improvment, 15(1), 125-133. (in Persian)
Mojtabaie Zamani, M., Nabipour, M., & Meskarbashee, M. (2014). Resposes of bread Wheat genotypes to heat stress during grain filling period Ahvaz conditions. Journal of Plant Productions, 37(4), 119-130. (in Persian)
Moshattati, A., Alami-Saied, Kh., Siadat, S. A., Bakhshandeh, A. M., & Jalal-Kamali, M. R. (2010). Evaluation of terminal heat stress tolerance in spring bread Wheat cultivars in Ahwaz conditions. Iranian Journal of Crop Sciences, 12(2), 85-99. (in Persian)
Moshattati, A., Siadat, S. A., Bakhshandeh, A. M., & Jalal-Kamali, M. R. (2018). The effect of growth and development periods on grain yield of spring bread Wheat under terminal heat stress in Ahwaz. Stresses in Crop Sciences, 11(1), 197-209. DOI: 10.22077/ESCS.2017.355.1067. (in Persian)
Nahar, K., Ahamed, K. U., & Fujita, M. (2010). Phenological variation and its relation with yield in several Wheat (Triticum aestivum L.) cultivars under normal and late sowing mediated heat stress condition. Notulae Scientia Biologicae, 2(3), 51-56. DOI: 10.15835/nsb.2.3.4723
Nikkhah, H., & Martirosian, H. (2017). Investigation of durum Wheat cultivars based on heat tension evolution indices in mazandaran. Crop Physiology Journal, 9(33), 19-33. (in Persian)
Omidi, M., Siahpoosh, M. R., Mamghani, R., & Modarresi, M. (2014). The effects of terminal heat stress on yield, yield components and some morpho-phenological traits of Wheat genotypes in Ahwaz weather conditions. Journal of Crop Production, 6(4), 33-53. (in Persian)
Pazoki, A. (2016). Effects of humic acid and plant growth promoting rhizobacteria (PGPRs) on yield and yield components of durum Wheat under drought stress condition in Shahr-e-Rey region. Cereal Research, 6(1), 105-117. (in Persian)
Pradhan, G. P., & Prasad, P. V. V. (2015). Evaluation of Wheat chromosome translocation lines for high temperature stress tolerance at grain filling stage. Plos One 10(2), e0116620. DOI: 10.1371/journal.pone.0116620
Rezapour Kavishahi, T., Ansari, M. H., & Mostafavi rad, M. (2015). Effects of some phosphorus bacteria strains on yield and agronomic traits in local bean of Guilan under different phosphate fertilizer rates. Journal of Crops Improvement, 17(3), 801-814. (in Persian)
Sarikhani, M. R., Aliasharzad, N., & Malboobi, M. A. (2013). Improvement of wheat phosphorus nutrition using phosphate solubilizing bacteria. Journal of Soil Management and Sustainable Production, 3(1), 39-57. (in Persian)
Sehgal, A., Sita, K., Siddique, K. H. M., Kumar, R., Bhogireddy, S., Varshney, R., Hanumantharao, B., Nair, R. M., Prasad, P. V. V., & Nayyar, H. (2018). Drought or/and heat-stress effects on seed filling in food crops: impacts on functional biochemistry, seed yields, and nutritional quality. Frontiers in Plant Science, 9(1705), 1-19. https://doi.org/10.3389/fpls.2018.01705
Seyed Sharifi, R., Ganbari, P., Khavazi, K., & Kamari, H. (2016). Study of interaction between nitrogen and biofertilizers on yield, grain growth of wheat and fertilizer use efficiency. Journal of Soil Biology, 4(1), 1-14. DOI: 10.22092/SBJ.2016.106754 (in Persian)
Tahir, M., Khalid, U., Ijaz, M., Mustafa Shah, Gh., Naeem, M. A., Shahid, M., Mahmood, Kh., Ahmad, N., & Kareem, F. (2018). Combined application of bio-organic phosphate and phosphorus solubilizing bacteria (Bacillus strain MWT 14) improve the performance of bread wheat with low fertilizer input under an arid climate. Brazilian Journal of Microbiology, 49, 15-24. https://doi.org/10.1016/j.bjm.2017.11.005