Variation and character association studies in Isabgol
Keywords:
husk, immense, dysentery, heritability, accumulateAbstract
Isabgol is a wonder plant with immense laxative utility. It is herb loaded with beneficial soluble fiber. The seed coat known as husk, has medicinal properties and is used as laxative in traditional system of medicine and has been proved beneficial in habitual constipation, chronic diarrhea and dysentery and irritation of digestive tract (Vigar Zaman etal.2002). The progress of any breeding programme depends upon the extent of genetic variability present in the population. The genetic variability along with the heritability gives a reliable picture of the genetic advance to be expected from selection (Burton, 1952) while the heritability coupled with genetic advance aids in predicting the valuable conclusion for effective selection based on phenotypic performance. Correlation studies provide an opportunity to study the magnitude and direction of association of yield with its components and also among various components. To accumulate optimum combination of yield contributing characters in a single genotype, it is essential to know the implication of the interrelationships of various characters along with path coefficients.Downloads
References
Bhagat, N. R. 1980. Studies on variation and association among seed yield and some component traits in Plantago ovata Forsk. Crop Improv. 7:60-63. Burton, G. W. 1952. Quantitative inheritance in grasses. Proc. Int. Grassland congr. 6: 277-283 Dewey, D.R. and Lu, K.H. 1959. A correlation and path coefficient analysis of components of wheat grass seed production. Agron. J. 51:515-518. Comstock, R.E., Kellehr, T. and Morroue, E.B. 1958.
Genetic variation in a sexual tree species, the garden strawberry. Genetics. 64: 634-46. Godawat, S. L. and Sharma, A. K. 1994. Variability pattern in psyllium, Indian PI. Genet. Res. 7(1): 55-57.
Johnson, H. W., Robinson, H.F. and Comstock, R.E.
68
69
1955. Estimates of genetic and environmental variability in soybean. Agron. J. 47:314-318. Lal, R. K., Sharma, J. R. and Mishra, H. O. 1999. Induced variability and varietal selection in isabgol (Plantago ovata). J. Medi. and Arom. Pt. Sci. 21: 34-37.
Lush, J. L. 1940. Intra-sire correlation or regression offspring on dam as a method of estimating hereditability of characteristics. Ann. Prod. Am. Animal Prod. 33: 293-301.
Mital, S. Po', Bhagat, N. R. and Maheswari, M. L. 1975.
Improvement of Plantago ovata (Forsk) through tetraploid and mutation breeding. Indian J. Agric.
Sci. 45:426-429.
Sharma, A. K. and Garg, D. K. 2002. Correlation response and correlations in isabgol(Plantago ovata Forsk.). Crop Improv. 29:1, 110-112. Sharma, A. K. and Kothari, P. R. 1997. Correlated response in Isabgol (Plantago ovata Forsk). Presented in third Agricultural Science Congress, held at P.A.U. Ludhiana Proceeding pp. 157. Viqar, Zaman., Manzoor, S.M. Mehreen, Z. and Nauman, Aziz. 2002. The presence of antiamoebic constituents in psyllium husk. Phytotherapy- Research, 16:78-79
