Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2004.262.263SiddiquiM.H. F.C. Oad A. Naqi Shah 2200432The field experiment was conducted to study the effect of sowing dates on total biomass content of cotton genotypes on clay soil under agro-climatic condition of Tandojam Pakistan during 2002. The treatments were three sowings (15th April, 15th May and 15th June) and three cotton genotypes (Qalandri, DS-67-3A and NIAB-78). The results revealed maximum biomass distribution at maturity in the leaves, stem and fruits of Qalandri and DS-67-3A, respectively whereas, the minimum biomass was noted in the NIAB cotton variety. Among the tested sowing dates, 15th May and 15th April planting exhibited significantly higher biomass accumulation as compared to late (15th June) sowings. Thus, it was recommended that cotton crop should be sown during 15th April to 15th May for obtaining satisfactory boll production in agro climatic conditions of Tandojam, Pakistan.]]>Donald, C.M.,196817385403Hearn, A.B.,196945243257Channa, M.H. and A.H. Balouch,198125125128Gomez, K.A. and A.A. Gomez,19842nd Edn.,Pages: 704Pages: 704Khan, M.A., A.W. Soomro and A.S. Arain,1988322230Arain, M.A. and A.A. Khan,1998359Taha, M.A.,1982pp: 7-13pp: 7-13