Stability analysis over seasons and locations of multilines of wheat (Triticum aestivum L.)
- 72 Downloads
Three multilines each of Kalyansona and PV 18 varieties of wheat were compared for their stability of yield and agronomic characters and disease resistance against the respective recurrent parents. The experiments were conducted for four years at nine locations.
The multilines had more tillers and bolder seeds than the recurrent parents. There were, however, no differences for plant height, ear length and number of spikelets per spike.
The genotypes x years x locations interaction was much more important than genotypes x years or genotypes x locations interaction as well as the main effects for genotypes. It is suggested that the number of test locations should be increased while decreasing the number of years.
The stability parameters indicated that the multilines had a higher mean yield in the case of Kalyansona multilines whereas the yield of multilines of PV 18 was not significantly inferior to that of the recurrent parent. The regression coefficients were very close to unity except for KSML 3 (b=1.132). The deviations from regression were much larger for the multilines than for the recurrent parents.
For rust resistance the multilines were superior over the varieties Kalyansona and PV 18.
Index wordsTriticum aestivum wheat multilines recurrent parents stability
Unable to display preview. Download preview PDF.
- Bains K. S. & V. P. Gupta, 1974. Component compensation for stability of yield in bread wheat. Crop Improvement 1: 36–42.Google Scholar
- Borlaug, N. E., 1958. The use of multiline or composite varieties to control air-borne epidemic diseases of self-pollinated crop plants. Proc. Ist Intern. Wheat Genetics Symp. Winnpeg, Canada, p. 12–27.Google Scholar
- Eberhart S. A. & W. A. Russell, 1966. Stability parameters for comparing varieties. Crop Science 6: 34–40.Google Scholar
- Frey K. J. & U. Maldonado, 1967. Relative productivity of homogenous and heterogenous oat cultivars in optimum and sub-optimum environments. Crop Science 7: 532–535.Google Scholar
- Frey K. J., J. A. Browning & M. D. Simons, 1973. Management of host resistance genes to control diseases. Z.f.Pflanzenkrankheiten und Pflanzenschutz 80: 160–180.Google Scholar
- Frey K. J., J. Browning & M. D. Simons, 1975. Multiline cultivars of autogamous crop plants. SABRAO J 7: 113–123.Google Scholar
- Frey K. J., 1972. Stability indices for oats. Crop Science 12: 809–812.Google Scholar
- Gandhi S. M., K. S. Nathawat & V. K. Bhatnagar, 1964. Variety x environment interaction in wheat under late sowing. Indian J. Genet. 24: 223–226.Google Scholar
- Gill K. S., G. S. Nanda & G. Singh, 1975. Studies on multilines in wheat. 2. Stability of Kalyansona and PV-18 cultivars. Crop Improvement 2: 8–16.Google Scholar
- Gill K. S., S. S. Aujla, Y. R. Sharma, G. S. Nanda & G. Singh, 1977a. Studies on multilines in wheat. 7. Seedling and adult plant reaction of components and multilines of Kalyansona and PV-18 against yellow rust. Cereal Research Communication 6: 167–173.Google Scholar
- Gill K. S., G. S. Nanda, S. S. Aujla, G. Singh & Y. R. Sharma, 1977b. Studies on multilines in wheat (T. aestivum). 6. Seedling and adult plant reaction of components of Kalyansona and PV-18 multilines against brown rust. Crop Improvement 4: 152–157.Google Scholar
- Johnson V. S., S. L. Shafer & J. W. Schmidt, 1968. Regression analysis of general adaption in Hard Red Winter Wheat (Triticum aestivum L.). Crop Science 8: 187–191.Google Scholar
- Jensen N. F. & G. C. Kent, 1963. New Approach to an old problem in oat production. Farm Research 29: 4–5.Google Scholar
- Leonard K. J., 1969. Genetic equilibria in host-pathogen systems. Phytopathology 59: 1858–1863.Google Scholar
- Luthra O. P. & R. K. Singh, 1974. A comparison of different stability models in wheat. Theoret. Appl. Gen. 45: 143–149.Google Scholar
- Luthra O. P., S. N. Kakar & R. K. Singh, 1976. Genotype environment interaction and ranking of varieties in wheat. Proc. 3rd Intern. Congress SABRAO 3(d): 22–25.Google Scholar
- Nanda, G. S., 1975. Diseases of wheat: Breeding approaches and materials. Proc. Summer Institutes on Breeding for disease resistance and for nutritional quality held at the Punjab Agricultural University, Ludhiana from June 16 to July 11, 1975.Google Scholar
- Rao N. G. P. & G. Harinaryana, 1968. Phenotypic stability of hybrids and varieties in grain sorghum. Current Science 38: 97–98.Google Scholar
- Rao N. G. P., 1970. Genotype x environment interaction in grain sorghum hybrids. Indian J. Genet. 30: 75–80.Google Scholar
- Rasmussan D. C., 1968. Yield and stability of yield in barley. Crop Science 8: 600–602.Google Scholar
- Schutz W. M. & R. L. Bernard, 1967. Genotype x environment interactions in regional testing of soybeans. Crop Science 7: 125–153.Google Scholar
- Suneson C. A., 1960. Genetic diversity: A protection against plant diseases and insects. Agron. J. 52: 319–321.Google Scholar