Multivariate Statistical Analysis to Yield of Canola under Drought Stress and Spraying of Gibberellin and Salicylic Acid
الموضوعات :
Abbas Maleki
1
(Assistant Professor, Department of Agronomy and Plant Breeding, Ilam Branch, Islamic Azad University, Ilam. Iran.)
Amin Fathi
2
(Ph.D. Students of Agronomy, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.)
الکلمات المفتاحية: Irrigation, Hormone, Growth Regulator, <i>Correlation, Regression</i>,
ملخص المقالة :
BACKGROUND: Drought stress is one of the most critical factors in the reduction of yield among plant growth factors. Salicylic acid is a regulator that plays a vital role in the physiological processes of the plant. Gibberellin is one of the plant growth-regulating hormones that have different effects on the growth and development of many plants during growth stages. OBJECTIVES: The purpose of this research is to identify the traits that have a strong and productive relationship with the performance of canola under conditions of drought stress and levels of Gibberellin acid and salicylic acid application. METHODS: An experiment was conducted as a split-split plot based on randomized complete block design (RCBD) with three replications during the cultivation season of 2017-2018 in Darreh-Shahr city, Ilam Province. The experimental factors were four levels of irrigation, including normal irrigation, cut of irrigation in stem elongation, cut of irrigation at the start of flowering. The cut of Irrigation at the beginning of the pod were allocated as main plots. Sub factors and sub-sub factors were two levels of spraying and non-spraying of Gibberellin hormone and salicylic acid, respectively. RESULT: Based on the results of correlation coefficients between the traits, it was determined that all of the studied traits had a significant correlation with grain yield. Investigation of regression coefficients using t-test showed that only the effects of three traits such as the number of flowering branches, 1000-seed weight, and harvest index were significant, but other characteristics in the model had a feeble impact on grain yield prediction. The number of flowering branches and harvest index has a more substantial contribution than other characters in predicting grain yield because one unit of increase causes the grain yield to increase by 42% in the standard deviation scale. CONCLUSION: According to the results, to improve the yield of rapeseed, three at-tributes of 1000 seed weight and number of flowering branches and harvest index have to be emphasized that directly or indirectly affect this trait.
Abbasi, A., A. Maleki, F. Babaei, H. Safari. andA. Rangin. 2019. The role of gibberellin acid and zinc sulfate on biochemical performance relate to drought tolerance of white bean under water stress. Cellular and Molecular Biology. 65(3): 1-10.
Arabi Safari, M., Sh. Lak. andA. Modhej. 2018. Interaction of pseudomonas fluorescence bacteria and phosphorus on the quantitative and the qualitative yield of rapeseed (Brassica napus l.) cultivars. Appl. Ecol. Environ. Res. 16: 63–80.
Ashraf, M., F. Karim. and E. Rasul. 2002. Interactive effects of gibberellin acid (GA) and salt stress on growth, ion accumulation and photosynthetic capacity of two spring wheat (Triticum aestivum L.) cultivars differing in salt tolerance, J. Plant Growth Regul. 36(1): 49- 59.
Farooq, M., N. Gogoi, S. Barthakur, B. Baroowa, N. Bharadwaj, S.S. Alghamdi. andK. H. M. Siddique. 2016. Drought stress in grain legumes during reproduction and grain filling. J. Agron. Crop Sci. 10.1111/jac.12169.
Fathi, A., F. Kianersi, H. Azizi. and S. Bahamin. 2017. Effect of bio fertilizers and environmental stresses on medicinal plants (problems, benefits and solutions). Dibaran Pub. pp. 242.
Hayat, Q., S. Hayat, M. Irfan. andA. Ahmad. 2010. Effect of exogenous salicylic acid under changing environment: a review. Environ. Exp. Bot. 68(1): 14-25.
Jaberi, H., B. Lotfi, T. Jamshidnia, A. Fathi, R. Olad. andA. Abdollahi. 2015. Survey of yield of winter canola cultivars under drought stress on the yield at four different phonological stages. Scientia. 12(3): 144-148.
Karami Chame, S., B. Khalil-Tahmasbi, P. ShahMahmoodi, A. Abdollahi, A. Fathi, S. J. Seyed Mousavi. andS. Bahamin. 2016. Effects of salinity stress, salicylic acid and Pseudomonas on the physiological characteristics and yield of seed beans (Phaseolus vulgaris). Scientia. 14(2): 234-238.
Kardoni, F. and A. Fathi. 2016. Analysis of agricultural projects in Excel (Simple and most convenient method of analysis of agricultural projects). Dibaran Pub. pp: 105.
Koocheki, A. R. and M. Khajeh Hosseini. 2008. Modern Agronomy. Jehad-e university of Mashhad Pub.
Kuchtova, P., P. Baranyk, J. Vasak. and J. Fabry. 1996. Yield forming factors of oilseed rape. Rosliny oleiste, T. 172: 223-234.
Kumar, S., S. N. Saxena, J. G. Mistry, R. S. Fougat, R. K. Solanki. and R. Sharma. 2015. Understanding Cuminum cyminum: An important seed spice crop of arid and semi-arid regions. Inlt. J. Seed Spices. 5(2): 1-19.
Leilah, A. A. and S. A. Al-Khateeb. 2005. Statistical analysis of wheat yield under drought conditions. J. Arid Environ. 61: 483-496.
Maleki, A., H. Charsoughi. and F. Babaie. 2008. Identification of effective traits on yield of wheat cultivars under different moisture conditions using multivariate statistical analyses. Iranian J. Agri. Sci. 2(5): 47-33. (Abstract in English)
Maleki, A., H. M. Mirzaei. and A. Fathi. 2017. Using multivariate statistical analysis to effects of some agronomic traits on forage yield of Sorghum under different levels of nitrogen and Zinc. Pant Eco physiology. 9: 85-96. (Abstract in English)
Modhej, A., M. Davoodi. and B. Behdarvandi. 2017. Maize (Zea mays L.) response to nitrogen fertilizer under drought stress at vegetative and reproductive stages. J. Crop Nutr. Sci. 3(1): 48-58.
Modhej, A., A. Rafatjoo. and B. Behdarvandi. 2013. Allopathic inhibitory potential of some crop species (Wheat, barley, canola, and safflower) and wild mustard (Sinapis arvensis). Intl. J. BioSci. (IJB). 3(10): 212-220.
Rahmani, A., A. A. Jafari. and P. Hedayati. 2004. Analysis of correlation, path for seed yield and its components in mountain rye (Secal montanum Guss). Iranian J. Range. Forests Plant Breed. Genetic Res. 12: 183-193.
Sahraei, E.,A. Maleki, A. Pazoki. andA. Fathi. 2018. The effect of salicylic and ascorbic acid on eco physiological characteristics and German Chamomile eessences in the deficit of water. Appl. Res. Plant Ecophysiol. 5(1): 117-142.
Steber, C. M. and P. McCourt. 2001. A role for brassinosteroids in germination in Arabidopsis. Plant Physiol. 125(2): 763-769.
Yazdanpanah, S., A. Baghizadeh. and F. Abbassi. 2011. The interaction between drought stress and salicylic and ascorbic acids on some biochemical characteristics of Satureja hortensis. African J. Agri. Res. 6(4): 798-807.
