STABILITY OF YIELD AND OTHER CHARACTERS OF SUNFLOWER ACROSS ENVIRONMENTS

Chutamard  Piasai; Paisan  Laosuwan

Authors

Chutamard Piasai School of Crop Production Technology, Suranaree University of Technology, 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand.
Paisan Laosuwan Faculty of Science and Technology, Hatyai University, Hat Yai, Songkhla 90110. Thailand.

Keywords:

Sunflower, Helianthus annuus L, stability, synthetic variety

Abstract

Ten synthetic varieties of sunflower and 2 check hybrids were tested in 7 environments in Nakhon Ratchasima province in 2003-2005 by using a randomized complete block design . The highest yield was exhibited by Pioneer, a hybrid, with the yield of 438 kg rai-1. The performance of the synthetic varieties, LOC, CM1, LOO, and HOO which yielded 372, 362, 351, and 344 kg rai-1, respectively, were not significantly different from Pacific 44, another hybrid check. The pooled analysis of variance showed that varieties-environment interactions (VxE) were significant for seed yield, plant height, disk size, and seed size. The regression analysis was used to partition VxE interaction into linear and non-linear components. The stability parameters (bi and S2di) showed that 10 varieties were stable for yield, 7 varieties for plant height, none for disk size, and 10 varieties for seed size.The stability parameters for seed yield of individual varieties showed that, for synthetic varieties,LOC, CM1, LOO, and HOO with above average seed yield were stable and could be recommended for general production.

References

Bartlett, M.S. (1973). Some examples of statistical methods of research in agricultural and applied biology. J.R. Stat.Soc. Supp., 4:137-183.

Eberhart, S.A. and Russell, W.L. (1966).Stability parameters for comparing varieties. Crop Sci., 6:36-40.

Finlay, K.W. and Wilkinson, G.M. (1963).The analysis of adaptation in a plantbreedingprogramme. Aust. J. Agric.Res., 14:742-754.

Francis, T.R. and Kannenberg, L.W. (1978).Yield stability studies in short-season maize I. A descriptive method for grouping genotypes. Can. J. Plant Sci.,38:1029-1034.

Kaewmeechai, S., Na Lampang, A., Potan, N.,Dangpradub, S., Kachonmalee, V., andPumklom, M. (1990). Production of synthetic sunflower varieties. Oilseed Crops Development Project Research Report for 1989, p. 10-14.

Laosuwan, P. and Machikowa, T. (2007).Breeding of synthetic varieties of sunflower for high oil content. SUT-TRFSunflower Breeding Project Final Report, p. 49-61.

Perkins, J.M. and Jinks, J.L. (1968).Environmental and genotype-environmental components of variability. III Multiple lines and crosses. Heredity, 23:339-356.

Yates, F. and Cochran, W.G. (1938). The analysisof groups of experiments. J. Agric. Sci.,28:556-580.