Genetic variability in the segregating generations and the breeding strategies for selection to improve yield and resistance to rust in pea
DOI:
https://doi.org/10.59797/jfl.v22i3.1617Keywords:
AUDPC, Correlation, Gene number, Heritability, Rust, Seed yieldAbstract
A rust susceptible genotype of pea HUVP 1 was crossed with a rust resistant genotype FC 1. One hundred F, and F, single plant progenies were grown along with parents and the infector rows. In both the generations, a wide range of variation was observed for plant height, pods per plant, 100-seed weight, yield per plant and AUDPC, indicating considerable scope for selection. Narrow sense heritability was estimated by regression of F, progenies on the F, parents, both F, and F, were evaluated in the same season to avoid environmental and season x generation interaction effects. High heritability accompanied with high estimates for genetic advance were observed for AUDPC, yield per plant and pods per plant. The estimated number of gene(s) in the segregating generations varied from 1.3 for 100-seed weight to 7.3 for seed yield per plant in the F, Positive and highly significant correlation was obtained between pods per plant and yield per plant and between AUDPC and pustule size in both the generations. Path-coefficients analysis showed that pods per plant and seeds per pod had high direct positive effect, whereas 100- seed weight had moderate positive direct effect on yield in both the F, and F, generations.
References
Bjarko ME and Line RF. 1988. Heritability and number of genes controlling leaf rust resistance in four cultivars of wheat. Phytopathology 78: 456-462.
Casali VWD and Tigchelaar EC. 1975. Computer simulation studies comparing pedigree, bulk and single seed descent selection in self- pollinating populations. Journal of American Society of Horticultural Science 100: 364-367.
Srivastava et al.: Genetic variability in the segregating generations and the breeding strategies
Chand R. Srivastava CP. Singh BD and Sarode SB. 2006. Identification and characterization of slow rusting components in pea (Pisum sativum L.). Genetic Resources and Crop Evolution 53: 219-224. Habtu A. and Zadoks JC. 1995. Components of partial resistance in Phaseolus beans against an Ethiopian isolate of bean rust. Euphytica 83: 95-102.
Kalaiyarasi R and Palanisamy GA. 2000. Estimation of genetic parameters in five F, population of cowpea. Annals of Agricultural Research 21(1): 100-103.
Katiyar RP and Ram RS. 1988. Genetics of rust resistance in pea. Indian Journal of Genetics and Plant Breeding 47: 46-48. Kumar TBA, Rangaswamy KT and Ravi K. 1994. Assessment of tall field pea genotypes for slow rusting resistance. Legume Research 17: 79-82.
Kushwaha C. Srivastava CP. Chand R and Singh BD. 2007. Identification and evaluation of a critical time for assessment of slow rusting in pea against Uromyces fabae. Field Crop Research 103: 1-4.
Lee TS and Shaner G. 1985. Oligogenic inheritance of length of latent period in six slow leaf rusting cultivars of wheat. Phytopathology 75: 636-643.
Mahmud and Kramer HI. 1951. Segregation for yield, height. and maturity following a soybean cross. Agronomy Journal 43: 605-609. Narsinghani VG, Singh SP and Pal BS. 1980. Note on rust resistant pea varieties. Indian Journal of Agricultural Sciences 50: 453 pp. Nayak BK and Baisukh B. 1990. Yield structure analysis in pea (Pisum sativum L.). Orrisa Journal of Agricultural Research 3(2): 104-108. Negussie T. Pretorius ZA. and Bender CM. 2005. Components of rust resistance in lentil. Euphytica 142: 55-64. Pal AB, Brahmappa PR. Chandra R and Biswas SR. 1979. Selection in garden pea (Pisum sativum L.) through component analysis and analysis of variability. Vegetable Sciences 15: 353-356. Panse VG. 1957. Genetics of quantitative characters in relation to plant breeding. Indian Journal of Genetics and Plant Breeding 17: 318-328.
Parlevliet JE and Kuiper HJ. 1985. Accumulating polygenes for partial resistance in barley to leaf rust. Puccinia hordei, I. Selection for increased latent periods. Euphytica 34: 7-13.
Shaner G. Buechley G and Nyquist WE. 1997. Inheritance of latent period of Puccinia recondita in wheat. Crop Science 37: 748-756 Shinde KG, Lawande KE and Patil BT. 1998. Correlation studies in pea (Pisum sativum L.). Advances in Plant Sciences 10(4): 112-115. Singh JD and Singh IP. 2006. Genetic variability, heritability expected genetic advance and character association in field pea (Pisum sativum L.). Legume Research 29(1): 65-67.
Singh R and Ram H. 2001. Inheritance of days to flowering and rust resistance in peas. Researches on Crops 2: 414-418.
Singh RM and Srivastava CP. 1985. Evaluation classification and usefulness of pea germplasm for quantitative characters. Legume Research 8: 68-72.
Towey. P and Jinks JL. 1977. Alternative ways of estimating the number of genes in a polygenic system by genotype assay. Heredity 39: 399-110.
Tyagi MK and Srivastava CP. 2002. Genetic variability and correlation among yield and yield characters over two environments in pea. Indian Journal of Agricultural Research 36: 53-56.
