Effect of super absorbent polymer on quantitative and qualitative traits of cowpea (Vigna unguiculata L.) in low irrigation management conditions

Document Type : Original Articles

Authors

Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Abstract

Introduction
Beans are the major part of the diet of many people in the world, because the large amounts of protein in combination with cereal grains could provide a valuable source of food. Iran is located in dry and semi-arid region, and water deficit due to the drought are observed in most parts of Iran. Therefore, implementation of irrigation techniques in order to be more productive than water resources is a scientific approach to reducing water consumption. Meanwhile, based on research, the use of super absorbent hydrogels can increase the yield or reduce the damage caused by scarcity of water resources. Accordingly, this experiment was conducted to investigate the effect of super absorbent polymer under low irrigation conditions on quantitative and qualitative traits of cowpea.
 
Materials & Methods
This research was conducted in summer 2015 in a field located 12 Km far from Ahvaz. This experiment was carried out as strip-plot in a randomized complete block design with three replications. The first factor consists of: 1) furrow full irrigation (control), 2) fixed alternate furrow irrigation and 3) variable alternate furrow. The second factor included three levels of super absorbent polymers: 1) Absence of super absorbent (control), 2) 75 Kg/ha and 3) 150 Kg/ha. Super absorbent on the basis of treatments was mixed with the soil with the help of a disk machine. Stagger furrow irrigation is one of the irrigation methods which can be applied fixed or alternatively by irrigation of half of the furrows. In the irrigation of variable alternate furrow, the furrows are irrigated as arrange in a series of alternating intervals. That way, in one irrigation time, two furrows and in next irrigation time, only the middle furrows is irrigated. In this method, only half of the plant roots, tolerate a period of drought stress and in the next irrigation, the dry period is removed and the other half is subjected to drought stress.
 
Results & Discussion
The results showed that the differences between different levels of irrigation was significant in number of pods per plant, number of seeds per pod, 100-seed weight, protein percentage, grain yield, biological yield and harvest index at 1% probability level. The effect of different levels of super absorbent on all tested traits was significant at the level of probability of 1% and grain protein content at 5% level. The interaction between different levels of irrigation and super absorbent on number of pods per plant and harvest index was significant at 5% probability level. The maximum grain yield under furrow full irrigation and 150 Kg/ha super absorbent were 2853.4 and 2314.5 Kg/ha, respectively, and the minimum grain yield under fixed alternate furrow irrigation and absence of super absorbent was obtained were 1108.2 and 1453.2 Kg/ha, respectively. It has been stated that the beans are sensitive to water shortages throughout the growth stage and water shortages, especially during flowering stage and grain filling period, can reduce grain yield. The role of super absorbents in increasing the grain yield can be attributed to a better supply of water and nutrients and the availability of them during stress and also to the reduction of water and nutrients waste. The maximum percentage of protein under fixed alternate furrow irrigation and absence of super absorbent was 28.89% and 27.58%, respectively, and the minimum percentage of protein was observed under furrow full irrigation and and consumption of 150 Kg/ha super absorbent was observed with 22.57% and 24.08%, respectively. It has been stated that drought stress increased the protein percentage of seeds relative to normal irrigation conditions. The reason for reduction of protein is to reduce the transfer of photosynthetic material to the seeds. Because, the percentage of protein in the shell and embryo is higher than endosperm. Therefore, in water shortage conditions due to reduction of transfer of photosynthetic material to endosperm, the seed protein percentage is increased compared to endosperm. Super adsorbents create better conditions for water absorption. This increases the photosynthetic capacity and storage of carbon hydrates in the seeds and decreases the protein content.
 
Conclusion
In general, the results of the experiment showed that the effect of super absorbent application in furrow full irrigation conditions with increasing production parameters and under low irrigation conditions, with reducing the effects of water deficit and improving the damage caused by it, could be effective in increasing the yield. However, with the use of super absorbent, the yield qualitative was reduced

Keywords


1. Abbasi, F., Naseri, A., Sohrab, F., Abbasi, N., and Akbari, M. 2015. Promoting Water Use Efficiency. Agricultural Research, Education and Extension Organization (In Persian).
2. Abedi Kupai, C., and Sohrab, F. 2005. Estimation of hydraulic properties of different soils by adding synthetic and natural superabsorbent using RETC model. 3rd Training and Seminar on Agricultural Application of Superabsorbent Hydrogels. (In Persian).
3. Allahdadi, I., Yazdani, F., Akbar, G.A., and Behbahani, S.M. 2005. Evaluation of the effect of different rates of superabsorbent polymer (Superab A200) on soybean yield and yield components (Glysin max L.). 3rd Specilized Training Course and Seminar on the Application of Superabsorbent Hydrogel in Agriculture. Iran, p. 20-32. (In Persian).
4. Azadi, A., Naderi, A., Pezeshpor, P., and Modhej, M. 2016. Effect of supplemental irrigation, vermicompost and super absorbent on grain yield and lentil protein properties as autumn planting. The 6th National Congress of Iranian beans. (In Persian).
5. Bahrani, A., and Pourreza, J. 2016. Effect of alternate furrow irrigation and potassium fertilizer on seed yield, water use efficiency and fatty acids of rapeseed. IDESIA (Chile). Paginas, p. 35-41.
6. Breebse Jones, D. 1931. Factors for converting percentages of nitrogen in foods and feeds into percentages of proteins. United States Department of Agriculture. Washington. p. 1-22.
7. Daniel, C., and Triboi, E. 2008. Changes in wheat protein aggregation during grain development: effects of temperature and water stress. European Journal of Agronomy 16(1): 1-12.
8. Gebeyehu, S. 2006. Physiological response to drought stress of common bean (Phaseolus vulgaris L.) genotypes differing in drought resistance. Ph.D. Thesis, University of Giessen, Germany.
9. Gupta, V.S. 2000. Production and Improvement of Crop for Drylands. Oxford and IBH Publication Company. New Delhi. 431 p.
10. Harvey, J. 2002. Use of hydrogels to reduce leaf loss haster root. Establishment Forest Research 45: 220-228.
11. Kabiri, K. 2002. Acrylic superabsorbent hydrogels. 2nd Specialized Training Course on Agricultural and Industrial Application of Super Debris Hydrogels. Iran Polymer and Petrochemical Research Institute. (In Persian).
12. Kang, S.Z., Shi, P., Pan, Y.H., Liang, Z.S., Hu, X.T., and Zhang, J. 2000. Soil water distribution, uniformity and water use efficiency under alternate furrow irrigation in arid areas. Irrigation Science 19(4): 181-190.
13. Karimi, M., and Baghal Mohseni, A. 2013. Effects of osmotic stress on soybeanvarieties. Journal of Novel Applied Sciences 2(4): 101-105.
14. Khadem, S.A., Ghalavi, M., Ramroodi, M., Mousavi, S.R., Rousta, M.J., and Rezvani Moghadam, P. 2011. Effect of animal manure and superabsorbent polymer on yield and yield components on corn (Zea mays L.). Iranian Journal of Crop Science 1(42): 115-123.
15. Khorramian, M. 2002. Effect of deficit irrigation by alternate furrow irrigation method on the efficiency on the corn yield in the north Khuzestan. Journal of Agricultural Engineering Research 3(11): 101-91. (In Persian with English Summary).
16. Khoshvaghti, H. 2006. Effect of water limitation on growth rate, grain filling and yield on three pinto bean cultivar. MSc. Thesis, Faculty of Agriculture. Tabriz University.
17. Lizana, C., Wentworth, M., Martinez, J.P., Villegas, D., Meneses, R., Murchie, E.H., Pastenes, C., Lercari, B., Vernieri, P., Horton, P., and Pinto, M., 2006. Differential adaptation of two varieties of common bean to abiotic stress. I. Effect of drought on yield and photosynthesis. Journal of Experimental Botany 57: 685-697.
18. Ludlow, M.M., and Muchow, R.C. 1990. A critical evaluation of traits for improving crop yields in water limited environments. Advances in Agronomy 43: 107-153.
19. Mahdavi, F., Esmaeili, M.A., Fallah A., and Pirdashti, H. 2006. Study of morphological characteristics, physiological indices, grain yield and its components in rice (Oryza sativa L.) landraces and improved cultivars 7(4): 280-297. (In Persian with English Summary).
20. Memar, M.R., and Mojaddam, M. 2015. The effect of irrigation intervals and different amounts of super absorption on the on yield and yield components of sesame in hamidiyeh weather conditions. Indian Journal of Fundamental and Applied Life Sciences 5(3): 350-365.
21. Mojaddam, M., Payandeh, K., Lak, Sh. and Marashi, K. 2017. Effect of superabsorbent polymer on grain yield and some physiological characteristics of spring maize (Zea mays L.) under water deficit tension conditions. Crop Physiology Journal 8(32): 61-73. (In Persian with English Summary).
22. Mokhtari, N., Mokhtari, M., and Avazpour, A. 2015. Effect of different levels of drought stress and super-adsorbent hydrogels on yield and yield components of Chita beans in yasouj region (Phaseolus vulgaris). The First International Conference and the 4th National Conference on Tourism, Geography and the Environment. Hamadan. Iran. (In Persian).
23. Moslemi, Z, Habibi, D., Asgharzadeh, A., Ardakani, M.R., Mohammadi, A., and Sakari, A. 2012. Effects of super absorbent polymer and plant growth promoting rhizobacteria on yield and yield components of maize under drought stress and normal conditions. American-Eurasian Journal of Agricultural and Environmental Sciences 12: 358-364.
24. Parsa, M., and Bagheri, A. 2008. Legumes. Publications University of Mashhad. 522 p.
25. Rafiei, F., Nourmohammadi, G., Chokan, R., Kashani, A., and Haidari Sharif Abad, H. 2013. Investigation of superabsorbent polymer usage on maize under water stress. Global Journal of Medicinal Plant Research 1(1): 82-87.
26. Roustaie, K., Movahhedi Dehnavi, M., Khadem, S., and Owliaie, H. 2012. Effect of different super absorbent polymer and animal manure ratios on the quantitative and qualitative characteristics of soybean under drought stress. Journal of Crops Improvement 14(1): 33-42. (In Persian with English Summary).
27. Sadeghi-Shoae, M., Paknejad, F., Hassanpour Darvishi, H., Mozafari, H., Moharramzadeh, M., and Tookalloo, M.R. 2013. Effect of intermittent furrow irrigation, humic acid and deficit irrigation on water use efficiency of sugar beet. Annals of Biological Research 4(3):187-193.
28. Salar, N, Farahpour, M., and Bahari, F. 2005. The effect of water-soluble polymer on irrigation intervals on melon. 3rd Speciallized Training and Specialized Seminar on Super Absorption. Iran Polymer and Petrochemical Research Institute. No. 3. (In Persian).
29. Shahram, A., and Daneshi, N. 2005. The most appropriate irrigation interval and the amount of water needed in white bean cropping. 9th Soil Science Congress of Iran. Tehran. (In Persian).
30. Shekari, F., Baljani, R., Saba, J., Afsahi, V., and Shekari, F. 2009. The effect of salicylic acid on growth characteristics of Borage (Borago officinalis L.). New Agricultural Sciences 6: 47-53. (In Persian).
31. Stoll, M., Loveys, B., and Dry, P. 2015. Improving water use efficiency of irrigated horticultural crops. Journal Express Botany 51(4): 1627-1634.
32. Taleie, A., Postini, K., and Dawazdeh Emami, S. 2000. Effects of plant density on physiological characteristics of some spotted bean (Phaseolus vulgaris L.) cultivars. Iranian Journal of Agricultural Sciences 3: 477-487.
33. Wakrim, R., Wahbi, S., Tahi, H., Aganchich, B., and Serraj, R. 2005. Comparative effects of partial root drying (PRD) and regulated deficit irrigation (RDI) on water relations and water use efficiency in common bean (Phaseolus vulgaris). Agriculture, Ecosystems and Environment 106: 275-287
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