GROWTH ANALYSIS OF MAIZE DURING LONG AND SHORT DURAnON CROP SEASONS: INFLUENCE OF NITROGEN SOURCE AND DOSE

Article Id: ARCC3038 | Page : 13-18
Citation :- GROWTH ANALYSIS OF MAIZE DURING LONG AND SHORT DURAnON CROP SEASONS: INFLUENCE OF NITROGEN SOURCE AND DOSE.Indian Journal Of Agricultural Research.2001.(35):13-18
S. Naresh Kumar· and C.P. Singh
Address : Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221 005, India

Abstract

Hybrid Ganga-S was grown during monsoon (Jun.-Sept.) and winter (Nov.-Apr.) for four years in a factorial RBD with three replications. Plants were treated with either urea or DAP or ammonium nitrate at 80, 120 and 160 kg N/ha, besides, a control (0 kg N/ha) was also maintained. The RGR of different plant parts, NAR and CGR were significantly/higher during monsoon while LAI and LAD were higher during winter. Values of all these parameters increased with increase in nitrogen application. In general, plants treated with ammonium nitrate had more LAI and LAD followed by urea and DAP treated ones. However, the type of nitrogen source did not influence RGR, NAR and CGR. The temperature regimes and nitrogen application influenced the growth rates of maize. Faster growth rates adversely affected the dry matter accumulation and grain yield. LAI and LAD seem to be important components for determining the dry matter accumulation and grain yield in maize.

Keywords

References

  1. Badu Apraku et ai. (1983). Can. J. Piant Sci., 63: 357-363.
  2. Cutforth, .H. W. and Shaykewich, C.F. (1989). Can. J. Piant. Sci., 69: 121-132.
  3. Dwell, R.B. et ai. (1981). Potato Res., 24: 33·47
  4. Gomez, K.A.and Gomez, A.A. (1984). Statistical Procedure for Agricultural Research, 2nd Ed.
  5. Wiley-Interscience Publication, New York.
  6. Hunt, R. (1975). Ann. Bot., 39: 745·755
  7. Hunt, R. (1982). Plant Growth Curves, The functional approach to plant growth analysis.
  8. Edward Arnold (Pub.) Ltd., London. pp247.
  9. Muldoom, D.K. et ai. (1984). Aust. J. Agric. Res., 35: 367-378.
  10. Naresh Kumar, S. (1992). Ph.D. Thesis, Banaras Hindu University, Varanasi.
  11. Saeed, M. and Francis, C.A. (1986). Crop Sci., 26: 1077·1078.
  12. Tollenaar, M. (1989a). Crop Sci., 29 1239-1246.
  13. Tollenaar, M. (1989a). Crop Sci., 29 : 1275-1279.
  14. Watson, D.J. (1947). Ann. Bot. N.S. 11 : 41-76.
  15. Watson, D.J. (1952). Adv. Agron. 4 : 101-145.
  16. Watson, D.J. (1958). Ann~ Bot. N.S. 22 : 37-55.
  17. Wilson, J.H. et a/. (1973). Ann. Appl. Bot.. 73 : 77-84

Global Footprints