Field Crops Research Field Crop Research 38 (1994) 185-186 Contents of Field Crops Research, Volume 38 Vol. 38 No. 1 July 1994 Effect of nitrogen on yield determination in irrigated maize in tropical and subtropical environments nn Sy CFs A, Ss, PUI i vins tn cadcdagdacssenateestcosescsevaneesiaudecuulinndecbabenipensoercnseapvabueubounieeuns 1 Canopy development, photosynthesis and radiation-use efficiency in sunflower in response to nitrogen C. Gimenez, D.J. Connor and F. Rueda (Cordoba, Spain) ................ccccccsccesccescceccesccesseesceesseessessseesceeseeeees 15 Unburnt bush fallows — a preliminary investigation of soil conditions in a bush fallow and two successive crops of taro (Colocasia esculenta (L.) Schott) in Western Samoa ee ics I A, FN ID bivdncieccdacacinicssnssedenonscunesipaesbcasatnsiacenssaiedbenbarsssobbesereuebunmbseneneeys 29 Variation of Cannabis for phenological development and stem elongation in relation to stem production E.P.M. De Meijer and L.C.P. Keizer (Wageningen, Netherlands) ..................cccceeceeceececcesceeeeeseeseeeseeseeseeseees 37 A procedure for investigating the number of genotypes required to provide a stable classification of environments J.K. Bull (Bundaberg, Qlid., Australia), M. Cooper and K.E. Basford (Queensland, Qlid., Australia) ..................... 47 ET IED ccd sian ccauiieacdnice baa ninconsichy4sn Dini ceib ad bbe naube beadonksmebeasseviaadadadierhaeniessiaeeieieumeaaeniasiaeeeia 57 Vol. 38 No. 2 August 1994 Nitrogen and density influences on silk emergence, endosperm development, and grain yield in maize (Zea mays L.) J.H. Lemcoff (Buenos Aires, Argentina) and R.S. Loomis (Davis, CA, USA) .............e.eece ecceeeecscceeesceessseeeeces 63 Analyzing the limitations set by climatic factors, genotype, water and nitrogen availability on productivity of wheat I. The model description, parametrization and validation P.K. Aggarwal, N. Kalra, A.K. Singh and S.K. Sinha (New Delhi, India) .......cc.c c.ee.e ee.e e.e ee.ee e.ece.ees.ene.cee.nee s 73 Analyzing the limitations set by climatic factors, genotype, and water and nitrogen availability on productivity of wheat II. Climatically potential yields and management strategies PR. PWG OE FE, Th CIPOW TOG, TIGER) asccsccccncciccscscncsescssccssccscccscceesatedsosecsuvseenssscescnsseecssdsesessys 93 The relationship between canopy structure and high productivity in napier grass, Pennisetum purpureum Schumach F. Kubota, Y. Matsuda, W. Agata and K. Nada (Fukuoka, Japan) ...............cccsscessecescecescescescesesceseeseeeseeeeues 105 Conditions inducing fertility alteration and ecological adaptation of photoperiod-sensitive genic male-sterile rice Z. Zhang, H. Zeng, J. Yang, S. Yuan and D. Zhang (Wuhan City, Hubei Province, China) .................sceeceseseeeeees 111 ORES ELIA TAR lL LIE OE PPO EE PETTERS RP POTN ALICE LI PN Sr ee RRR A EUR 121 Vol. 38 No. 3 September 1994 Testing the root growth subroutine of the CERES-Wheat model for two cultivars of different cycle length R. Savin, A.J. Hall and E.H. Satorre (Buenos Aires, Argentina) ................ccccecsceenceeenscensceceneeeeceeeeceeeeeseeeees 186 Contents / Field Crop Research 38 (1994) 185-186 Relationships between internode elongation, plant height and leaf appearance in maize M.J. Robertson (East Lansing, MI, USA) Combining ability variation for osmotic adjustment among a selected range of grain sorghum (Sorghum bicolor L. Moench) lines J. Basnayake, M. Cooper, M.M. Ludlow (Brisbane, Qld., Australia) and R.G. Henzell (Warwick, Qid., Australia) .... Development of screening methods and identification of stable resistance to anthracnose in sorghum S. Pande, R.P. Thakur, R.I. Karunakar, R. Bandyopadhyay and B.V.S. Reddy (Patancheru, Andhra Pradesh, India) ... Response of short-duration pigeonpea to nitrogen application after short-term waterlogging on a Vertisol R. Matsunaga, O. Ito, S. Tobita, T.P. Rao and C. Johansen (Patancheru, A.P., India) Possibilities for regulation stem growth of tobacco seedlings by treatment with some growth retardants S.G. Petkova and Y.M. Angelova (Sofia, Bulgaria) Subject Index Author Index