Effect of Crossing Period on Seed Germination and Seedling Vigour of Cotton Hybrid DHH-543
26 / 1
Authors
-
S.R. DODDAGOUDAR
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
-
M. SHEKHARGOUDA
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
-
B.M. KHADI
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
-
M.R. ESHANNA
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
-
N.K. BIRADARPATIL
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
-
H.M. VAMADEVAIAH
Department of Seed Science and Technology and Agricultural Research Station, University of Agricultural Sciences, Dharwad 580 005
Author
Keywords:
Crossing period, seed index, germination, vigour indexAbstract
The influence of five crossing period viz., first crossing period to last crossing period (C₁-C5) each with fifteen days interval were studied for seed quality parameters. The seeds obtained from the bolls set at first three crossing periods (C1, C2, C3) gave higher seed index, germination percentage, shoot length, seedling dry weight and seedling vigour index as compared to those seeds obtained from the later crossed bolls (C, and C5). However, the germination percentage even in fourth and fifth crossing periods recorded above minimum seed certification standards (75%). Hence, the seeds obtained from all the five fortnight crossings periods in DHH-543 intra-hirsutum hybrid seed production can be used as seed for commercial sowing.
Downloads
References
1. NAGWEKAR, S.N., M.S. KAIRON & VIRESWAR SINGH (1983). Effect of picking time and interval on the quality of cotton. Cotton Dev., 13: 5-8.
2. KHADI, B.M., YENJERAPPA, PRAKASHA RAO, S.T. B.S. JANAGOUDAR, M.R. ESHANNA & R.B. NAIK (1994). Effect of crossing period on seed quality of cotton hybrid. Seed Res., 22(1): 7-11.
3. SUKHIJA, H.S., N.S. BUTTUR, JAGADEV SINGH, S.P.S. BRAR & T.H. SINGH (1988). Timings of spray against bowl worms on American Cotton Variety LH-900 and its phenology in composition to F-286. Cotton Dev., 17: 24-27.
4. ANONYMOUS (1990). Annual Report, All India Co-ordinated Cotton Improvement Project (Karnataka). pp. 196-198.
5. PANSE, U.G. & P.V. SUKHATME (1967). Statistical Methods for Agricultural Workers. Indian Council of Agricultural Research, Publication, New Delhi, India.
6. YADAV, S.K. & B.S. DHANKAR (2001). Seed production quality of okra cv. Varsha Uphar as affected by sowing time and position of fruit on plant. Seed Res., 29(1): 47-51.
7. WAGHMODE, D.B., A.S. JADHAV & D.A. CHAVAN (2000). Influence of crossing time and male to female ratio on production of hybrid cotton seed (NHH 44). J. of Maharashtra Agril. Univ., 25(2): 216-217.
8. PHILLIPS, S.A. Jr. & J.L. SIMPSON (1981). Hybrid cotton pollination in relation to accumulated degree days. Agron. J., 81: 975-980.
9. KUMAR, V., Ν.Ο. МЕНТА & D. GOAIL (1987). Influence of stratified harvests and processing intervals on the quality of cotton seed. Seed Res., 15: 1-8.
10. JENKINS, J.N., Mc. J.C. CARLY & W.L. PARROT (1990). Fruiting efficiency in cotton: boll size and boll setting per cent. Crop Sci., 30: 857-860.
11. GIDNAVAR, V.S. (1982). Seed quality of Varalaxmi cotton hybrid in different pickings. Cotton Dev., 11(2&3): 58-59.
12. MERWADE, M.N. & B.H. KATARKI (1986). Studies on flowering pattern and its impact on yield and quality of Varalaxmi hybrid cotton seed. Seed Res., 14(1): 89-95.
13. SINGH, A.R., S.B. DESHPANDE & L.A. DESHPANDE (1988). Quality of seed as influenced by seed development and maturation in cotton. Seed Res., 16: 131-135.
