Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2003.732.734AlamM. Z.RahmanM. S.HaqueM. E.HossainM. S.AzadM.A. K.KhanM.R. H.8200368The study was conducted to investigated the effect of irrigation and irrigation on growth and yield of wheat (cv. Kanchan). The results revealed that both the irrigation and nitrogen gave significant (p<0.05) effect on all studied growth parameters such as plant height (90.09 and 90.42 cm), number of tillers plant-1 (3.21 and 3.20), leaf area index (LAI) (1.37, 1.55 at 60 DAS and 3.73, 4.77 at 75 DAS), crop growth rate (CGR) (282.10, 333.13 mg day-1 plant-1 at 60-75 DAS and 158.99, 177.35 mg day-1 plant-1 at 75-90 DAS) and relative growth rate (RGR) (0.108, 0.1098 mg mg-1 day-1 at 60-75 DAS and 0.021, 0.022 mg mg-1 day-1 at 75-90 DAS). Among the yield contributing characters the number of effective tillers plant 1 (2.89 and 2.92), number of non effective tillers plant-1 (0.52 and 0.67), number of non-fertile spikelets spike-1 (2.44 and 2.51), grain yield (2.69 and 2.50 t ha-1) and harvest index (46.55 and 45.25%) were significantly influenced by irrigation as well as nitrogen level. The increments of grain yield mainly due to increase in number of effective tillers plant-1.]]>Awasthi, U.D. and Surajbhan,1993Triticum aestivum) varieties with different levels of nitrogen in moisture-scarce condition.]]>38200203Ayoub, M., S. Guertin, S.L. Lussier and D.L. Smith,199434748756BBS (Bangladesh Bureau of Statistics),19991999FAO (Food and Agriculture Organization),1999537070Gomez, K.A. and A.A. Gomez, 19842nd Edn.,Pages: 704Pages: 704Hunt, R.,1978pp: 67pp: 67Joshi, N.L. and H.G. Singh,198317159162Khajanji, S.N. and R.K. Dwivedi,1988Triticum aestivum) var. Lok-1 to irrigation and fertilizer mixtures under late-sown condition.]]>33742Radford, D.J.,19677171175Rashid, M.M., S.M.A. Ali, M.A. Wahab, M.S. Amin, A.A. Kayum and M.S. Alam,19991st Edn.,Singh, R.V., V.K. Dubey and M.D. Vyas,1992Triticum aestivum) under late-sown condition.]]>374346Sudhansu, S.P.,198035302303UNDP. and FAO.,19881988