Effects of Drought Stress on Vegetative and Reproductive Stages of Forage and Kernel Corn Hybrids

Document Type : Research Article

Authors

• M Hajibabaei ¹
• F Azizi ²

¹ Ferdowsi University of Mashhad

² Seed and Plant Improvement Institute, Karaj

10.22067/gsc.v14i2.39375

Abstract

Introduction
Maize is one of the most important cereals which its global production is severely affected by drought in many parts of the world. One of the best ways of water management on field is to choose the proper variety which could be chosen indirectly by the traits affecting the grain yield.
Materials and Methods
In order to study the effect of drought stress in vegetative and reproductive stages in 14 corn hybrids, an experiment was conducted at the experimental field of Seed and Plant Improvement Institute of Karaj, in 2009. The Research Station located in 50°, 55´ eastern latitude and 35°, 47´ northern longitude with 1254 height above mean sea level (AMSL). The soil texture of the location was loam-clay with pH= 7.5 and the Electrical Capacity (EC) = 0.7 dsm-1. The experiment was carried out using split-plot in a randomized complete block design (RCBD) with three replications. The main plots consisted of three levels of irrigation regimes (irrigation after 70, 100 and 130 mm cumulative evaporation from evaporation pan class A) and sub-plots included 14 new corn hybrids Includes eleven new hybrids such as (K47/2-2-1-4-1-1-1×MO17، K3653/2×K19، KLM76004/3-2-1-1-1-1-1-1×K3545/6، K3653/2×MO17، K74/2-2-1-2-1-1-1-1×K3545/6، K47/3-1-2-7-1-1-1×MO17، K47/2-2-1-2-2-1-1-1×K3544/1، KLM76004/3-2-1-1-1-1-1-1×K3544/1، K47/2-2-1-2-1-1-1-1×K3544/1، KLM77029/8-1-2-3-2-3×MO17 and KLM76005/2-3-1-1-1-1×MO17) and three hybrid control (KSC704, KSC720, KSC700). Irrigation time was determined using daily evaporation rate of standard class A evaporation pan. To determine the volume of water per irrigation, a sample of each plot from depth of root development was prepared before irrigation. The samples were kept in oven 80°C for 24 hours. The weight of soil moisture content was calculated and the volume of water per irrigation was calculated using equations 1 and 2.
1: H = ρb (F.C - m) D
2: V = H × A
Where H is the water height in the plot, ρb is soil bulk density, F.C is the moisture level at field capacity, m is plot moisture mass desired at irrigation time, D is the root development depth, V is the volume of irrigation water in the plot, and A is the plot area. From each plot 10 plants were randomly selected to determine traits such as dry forage yield per hectare. In this experiment kernel yield per hectare, Dry forage yield per ha, Number of days until to pollination, number of days until silk emergence cords and period of pollination until silk emergence, ear length, ear diameter, number of ear in corn, number of kernels per row and number of rows per ear measured and calculated.
Results and Discussion
The results showed that hybrid differences in terms of number of days until the pollination, number of days until silk emergence cords, period of pollination until silk emergence and ear length was significant at 1% probability level. No significance differences were observed between hybrids for kernel yield, total number of kernels per ear, number of ear in corn and ear diameter. Hybrid and irrigation regimes interactions were not significant for any of the traits except for ear length that represent the same reaction of hybrids to the irrigation regimes. Evaluation of dry forage showed significant difference between years (P

Keywords

• Ear length
• Forage and Kernel Yield
• Irrigation Regimes
• Number of Days Until to Pollination

20.1001.1.20081472.1395.14.2.7.6

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References

1- Abrecht, D. G., and Carberry. P. S. 1991. The influence of water deficit prior tassel initiation on maize growth. Field Crops Research 31: 55-69.

2- Andrade, F. H., Echarte, L., Rizzalli, R., Della Maggiora, A., and M. Casanovas. 2002. Kernel number predication in maize under nitrogen or water stress. Crop Science 42:1173-1179.

3- Azari ki, M. 2002. Effect of drought stress on yield and yield components of maize 3 varieties in Mogan. Master thesis. University of Tabriz.

4- Azari Nasrabadi, A. 1999. Diversity and relationships in agronomic traits and yield components in corn with the application of the factor. Master thesis, Faculty of agriculture, University of Tehran.

5- Bolanos, J., and Edemedes. G.O. 1996. The importance of the anthesis–silking interval inbreeding for drought. Tolerance in tropical maize. Field Crops. Research 48:65-80.

6- Bolanos, J. and Martinaz. L. 1993. Eight cycles of selection for drought tolerance in low land tropical maize. Responses in drought adaptive physiological and morphological trait. Field Crop Research 31: 269- 286.

7- Budiarti, S.G. 1997. Green house and field test of maize varieties for drought tolerance. Simposioum NASI onal dan Kongres. Green house and field test of maize varieties for drought tolerance. Simposioum NASI onal dan Kongres.PERIPI – Perhimpunan Ilmu Pemuliaan Indonesia (Indonesia) 24-25.

8- Cakir, R. 2004. Effect of water stress at different development stages on vegetative and reproductive growth of corn. Field Crops Research 89:1-16.

9- Cattivelli, L., Rizza, F., Badeck, F.W., Mazzucotelli, E., Mastrangelo, A.M., Francia, E., Mare, C., Tondelli, A. and Stanca, A. M. 2008. Drought tolerance improvement in crop plants: An integrated view from breeding to genomics. Field Crop Research 105: 1-14

10- Coors, J.G. 1995. Grain yield and nutritional quality of corn silage.Final 4 year UW corn silage research consortium meeting Madison.WS unpublished.

11- Curran, B. and Posch. J. 2000. Agronomic management of silage for yield and quality:silage cutting height.Crop Insights Vol:10(2). Pioneer Hi-bred International .INC.

12- Denmead, O.T. and Show. R.H. 1960. The effect of soil moisture stress at different stages of growth on the development and yield of corn. Agronomy Journal 52: 272- 274.

13- Desclaux, D. and Roumet, P. 1996. Impact of drought stress on the phenology of two soybean (Glycine max L. Merr) cultivars. Field Crop Research 46: 61-70.

14- Fatemi, R. B. Khraryan, Ghanbari, O. and Valizadeh. M. 2001. Effects of different regimens and the need for irrigation water on corn yield and yield components Sngl 704, Journal of Agricultural Sciences 12(1): 140-133.

15- Grant, R.F., B.S. Jackson, Kiniry, J.R. and Arkian. G.F. 1989. Water deficit timing effects on yield componentsin in maize. Agronomy Journal 81:61-65.

16- Hamidi, S. 2001. Evaluation of delayed corn hybrids under drought stress conditions in grain filling stage of drought tolerance indices, and path analysis. Master's thesis, Faculty of agriculture, University of Mazandaran.

17- Herrero, M.P., and johnson. R.R. 1981. Drought stress and its effects on maize reproductive system. Crop Science 21: 105-110.

18- Karimi, M.M. Esfahani, M, Bigloei, B, and Gasemi, A. 2009. The impact of irrigation on Factors low-growth indicators morphologically and maize in the climatic conditions of Rasht. Electronic journal of production of crop plants 2(2): 109-91.

19- Kumar, A. and Singh, D.P. 1998. Use of physiological indices as a screening technique for drought tolerance in oilseed Brassica species. Annals of Botany 81: 413- 420.

20- Lauer, J. 2003. What happens with in the corn plant when drought occurs. Wisconsin Crop Manager 10(22): 153- 155.

21- Mark, G. J., Boyle, S. Boyer. and Mogan, W. 1991. Stem infusion of liquid culture medium prevents reproductive failure of maize at low water potential. Crop Science 31: 1246-1252.

22- Nesmith, D.S. and Ritchie, J.T. 1992a. Maize (Zea mays L.) response to a severe soil water- deficit during grain filling. Field Crops Research 29: 23-35.

23- Osborne, S.L., Schepers, D.D., Francis, J. S. and Schlemmer, M.R. 2002. Use of spectral radiance to estimate in- season biomass and grain yield in nitrogen and water stress on corn. Crop Science 42:165-171.

24- Prakob, J.A. 1996. Effect of plant densities and planting dates on some agronomic characteristics and grain yield of field corn varieties. Thesis (M. S. in Agriculture) Bangkok, pp 129.

25- Rashidi, Sh. 2005. Effect of drought stress at different growth stages and different levels of nitrogen fertilizer on yield and yield components of maize TC647 in Khuzestan weather conditions. Master thesis Agriculture University of agricultural sciences and natural resources, Khuzestan.

26- Ranjbar, h. 2005. Effect of drought stress and thinning at different growth stages on yield and physiological, morphological characteristics, seed yield components of maize hybrid 704 Single. Master thesis, Faculty of agriculture, University of Shiraz.

27- Shoae Hosseini, M.M. Parsi, and Khavari Khorasani. S. 2008. Effects of water deficit on yield and yield components in hybrid corn using path analysis. Journal of Agricultural Science. 92(1): 85-71.

28- Safarhamidi, H, 2005. Evaluation of maize under drought stress conditions delayed hybrids in grain filling stage of drought tolerance indices, and causality. Master thesis, University of Mazandaran.

29- Saeed, M; MT. Masood., M.B. Gill and Akhtar. M. 1997. Agromorphological response of maize to water stress. Pakistan Journal of Botany 29(3): 103- 111.

30- Song F.B., and Dai. Y.Y. 2000. Effect of drought stress on growth and development of female inflorescence and yield of maize. Journal of Agricultural University 22(1): 18-22.

31- Stone. P.J, D.R, Wilson and Reid. J.B, 2001. Water deficit effects on sweet corn. I. Water use, radiation use efficiency, growth, and yield. Australian Journal of Agricultural Research 52(1): 103- 113.

32- Traore, S.B., Carlson, R.E., Pilcher, C.D., and Rice, M.E. 2000. Bt and Non-Bt maize growth and development as affected by temperature and drought stress. Agronomy Journal 92: 1027-1035.

33- Westgate, M.E., and Boyer, J.S. 1986. Reproduction at low silk and water potential in maize. Crop Science 26: 951-956.

34- Westgate, M.E. 1994. Water status and development of the maize endosperm and embryo during drought. Crop Science 34:76-83.

35- Yazar, A., Sezen, S. and Gencel, B. 2002. Drip irrigation of corn in the Southeast Anatolia Project (SAP) area in Turkey. Irrigation and Drainage 51:293-300.

36- Zinselmeier, C., M.E. Westgate and R.J. Jones. 1995. Kernel set at low water potential does not vary with source / sink ratio in maize. Crop Science 35: 158-163.