Assessment of the performance correlation, agronomic characteristics, and drought tolerance indices in corn hybrids under late season moisture stress conditions

Shahram MEHRİ
1.476 523

Abstract


Abstract. This study aimed to investigate the performance correlation, agronomic characteristics  and drought tolerance indices in sorghum hybrids under late season moisture stress conditions in a randomized complete block design with four replications. In both normal irrigation and drought stress conditions, the number of kernels per corn showed the highest correlation with seed yield by (r= 0.977) and (r= 0.952), respectively. The results of the describing data indicate that there was a positive and significant correlation between GMP, MP, STI and TOL indices with YP and YS at 1% probability level, Whereas, SSI index had negative and non significance correlation to Yp and Ys. 


Keywords


Yield, Corn, Drought tolerance indices and Correlation

Full Text:

PDF


References


Ahmad, Q., M. A. Rana., and S. U. H. Siddiqui. 1991. Sunflower seed yield as influenced by some agronomic and seed characters. Euphytica. 56: 137- 142. [2] Bohnert, H. J., and R. A. Bressan. 2001. Abiotic stresses, Plant reaction and new approaches towards understanding stress tolerance. Crop Sci. 6: 81-100.

Bouslama, M., and W.T. Schapaugh. 1984. Stress tolerance in soybean. Part. 1: Evaluation of three screening techniques for heat and drought tolerance. Crop Sci 24:933–937

Corke, H., and L. W, Kannenberg. 1989. Selection for vegetative phase and actual filling period duration in short season maize. Crop Sci. 29: 607- 612. [5] Cross, H. Z. 1991. Leaf expansion rate effects on yield components in early maturing maize. Crop Sci. 31: 579- 583.

Dudley, J. W., and R. H. Moll. 1969. Interpretation and use of estimates of heritability and genetic variances in plant breeding. Crop Sci. 9: 371- 391.

Dwyer, L. M., B. L. M. Leveson., and R. L. Hamilton. 1994. Maize physiological traits related to grain yield and harvest moisture in mid- to short season environments. Crop Sci. 34: 985- 992.

Ehdaie, B., and C. E. Cress. 1973. Simulation of cyclic single cross selection. Theor. Appl. Genet. 43: 374- 380.

Farzi, b. 2005. Examining the performance of moisture tolerant indices of corn in areas of the Moghan. Master Thesis in plant breeding. Faculty of Agriculture. Ardabil University.

Fernandez, G. C. 1992. Effective selection criteria for assessing plant stress tolerance in proceeding of Symposium, Taiwan. 13- 18 Aug.

Fischer, R. A., and R. Maurer. 1978. Drought resistance in spring wheat cultivars. I. Grain yield responses. Aust. J. Agric. Res. 29:897-912.

Gavuzzi, P., F,Rizza, M, Palumbo, R.G, Campaline, G.L, Ricciardi., and B, Borghi. 1997. Evaluation of field and laboratory predictors of drought and heat tolerance in winter cereals.Canadian J Plant Sci 77: 523-531

Hossain, ABS., A.G,Sears, T.S, Cox., and G.M, Paulsen.1990. Desiccation tolerance and its relationship to assimilate partitioning in winter wheat. Crop Sci 30: 622–627.

Mohammadi, S. A., B. M. Prasanna and N. N. Singh. 2003. Sequential path model for determining interrelationships among yield and related characters in maize. Crop Sci. 43: 1690- 1697.

Moghadam, A., M. Moghadam., and A.Alyari. 1996. Determining the percentage of self- fertilization and traits correlation analysis in sunflower cultivars. Journal of Agricultural Knowledge

Rosielle, A. T., and J. Hamblen. l981. Theoretical aspects of selection for yield in stress and non - stress environments. Crop Sci. 21: 943- 945.

Salami, A. E., S. A. O. Adegoke., and O. A. Adegbit. 2007. Genetic Variability among maize cultivars growing Equity-state, Nigeria. Middle-East Journal of Science Research 2: 9- 13.

Sharma, B. C., and B. K. Makherjee. 1985. Analysis of heterosis for number of grains in maize. Indian. J. of Genetics. 45: 240- 246.

Vaezi, Sh., C. Abdmishani., B. Yazdi Samadi., and M.R ghanadha. 1998. Correlation and causality analysis of grain yeild and its related traits in corn. Journal of Iran Agricultural Science. 31: 83-71.

Zadtut Aghaj, C. Sh., C. K. Kazemi., A. Amini., and M. Khalili. 2000. Investigation Correlation and causality analysis in late- ripening corn hybrids under normal and moisture stress in grain filling stage. Sixth Congress of Agronomy and Plant Breeding, September 16-13. BABOLSAR. Pp. 34.