2011, Issue-1 & 2, Volume 3

CHARACTER ASSOCIATION AND PATH COEFFICIENT STUDIES IN SWEET POTATO [IPOMOEA BATATAS (L.) LAM.] GENOTYPES

Pushpa Lata Tirkey, Jitendra Singh, P.C.Chaurasia and D.A. Sarnaik.

Department of Horticulture

Indira Gandhi Krishi Vishwavidyalaya, Raipur 492006 (C.G.) India

Abstract: Correlation coefficient analysis revealed that tuber yield-2 showed significant positive correlation with vine weight-2 and marketable tuber yield-2 at both genotypic and phenotypic level, suggesting that selection of these characters may be useful for the development of ideal plant type of sweet potato for the Chhattisgarh plains. Path coefficient analysis revealed that marketable tuber yield-2, biological yield-2, tuber diameter and dry matter per cent of tuber, neck length of tuber, tuber length and vine had positive direct effect on tuber, and therefore these traits could be utilized as selection criteria in sweet potato.

Keyword: Sweet potato, Ipomoea batatas, Correlation, Path coefficient

REFERENCES

Amarchandra (1997).Yield prediction of sweet potato [Ipomoea batatas (L.) Lam.] based on physiological and yield parameters. J. N. K. V. V. Res. Journal , 31:1-5.

Chowdhary, S.C. Kumar, H.; Verma, V.S.; Naskar, S.K.T.and Kumar, H. (2000). Genetic divergence in sweet potato [Ipomoea batatas (L.) Lam.] Journal of  research. 10 (1):186-188.

Dewey, D.R. and Lu. K.H. (1959). A correlation and path coefficient analysis of component of crested wheat grass and seed production. Agron. J. 51: 515-518.

Lila, Babu (1987). Biological composition and nutritive value of sweet potato Course document I. Fourth International training course on integrated production and processing technologies for sweet potato, Thiruvananthapuram. pp 125-123.

Miller, J.C. and Gafer, A.K. (1958). A study of the synthesis of carotene in the sweet potato plant and root. Proc. Amer .Soc.Hort. Sci.71:388-390.

Nedunzhiyan, M. and Reddy, S.D. (2000). Correlation and regression studies in sweet potato [Ipomoea batatas (L.) Lam.]. J. Root Crops, 26 (1): 34-37.

Puskaran, K.; Sukumaran Nair, P. and Gopkumar, K. (1978). .Analysis of yield and its components in sweet potato [Ipomoea batatas (L.) Lam.] Agric. Res. J. Kerala. 14 (2): 153-159.