75

CONTENTS

VOL.

Foreword Preface . .

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14,

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1974/75

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Part I - Genetic engineering

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VII IX

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Breeding for more efficient water use - is it real or a mirage? L.P. Reitz (Beltsville, Md., U.S.A.) . . . . . . . . . . . . . . . Genetic engineering as a key t6 water-use efficiency R.F. Eslick and E.A. H o c k e t t (Bozeman, Mont., U.S.A.) . . . . . . . . . Use of variety isogenes in plant water-use efficiency studies R. Ferguson (Bozeman, Mont,, U.S.A.) . . . . . . . . . . . . . . Genetic modification of c o t t o n plants for more efficient water use L.L. Ray, C.W. Wendt, B. R o a r k and J.E. Quisenberry (Lubbock, Texas, U.S.A.) Phenotype and drought tolerance in wheat E.A. Hurd (Swift Current, Sask., Canada) . . . . . . . . . . . . . Part II - Physiological and environmental factors

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3 13 25

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31

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57

Plant responses to water deficits, water-use efficiency and drought resistance T.C. Hsiao and E. Acevedo (Davis, Calif., U.S.A.) . . . . . . . . . . . . Plant water balance - its relationship to atmospheric and edaphic conditions M.R. Kaufmann and A.E. Hall (Riverside, Calif., U.S.A.) . . . . . . . . . . Impact of the CO 2 requirement on plant water use R.W. Tinus (Bottineau, N.D., U.S.A.) . . . . . . . . . . . . . . . Plant physiological responses to water stress C.Y. Sullivan and J.D. Eastin (Lincoln, Nebr., U.S.A.) . . . . . . . . . . . Soil physical and chemical barriers to more efficient water use by crops J.O. Reuss and R.E. Danielson (Fort Collins, Colo., U.S.A.) . . . . . . . . . Reducing t u r b u l e n t transfer to increase water-use efficiency L.J. Hagen and E.L. Skidmore (Manhattan, Kansas, U.S.A.) . . . . . . . . . Soil- and air-temperatures as limitations to more efficient water use L.N. Namken, C.L. Wiegand (Weslaco, Texas, U.S.A.) and W.O. Willis (Mandan, N.D., U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . Atmospheric and soil water influence on the plant water balance J.T. Ritchie (Temple, Texas, U.S.A.) . . . . . . . . . . . . . . . . . Calculations of evapotranspiration f r o m crop surface temperature K.W. B r o w n (College Station, Texas, U.S.A.) . . . . . . . . . . . . . Radiant energy and light environment of crops E.T. Kanemasu (Manhattan, Kansas, U.S.A.) and G.F. A r k i n (Temple, Texas, U.S.A.)

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Part III - Modelling

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A parametric analysis of the anatomy and physiology of the stomata D.W. DeMichele and P,J.H. Sharpe (College Station, Texas, U.S.A.) . . . . . . . Modelling of plant growth for yield prediction W.E. Splinter (Lincoln, Nebr., U.S.A.) . . . . . . . . . . . . . . . A critical review of light models for estimating the shortwave radiation regime of plant canopies

59 85 99 113 129 153

169 183 199

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R. Lemeur (Ghent, Belgium) and B.L. Blad (Lincoln, Nebr., U.S.A.) . . . . . . The soil--plant--atmosphere model and some of its predictions R.W. Shawcroft ( A k r o n , Colo., U.S.A.), E.R. Lemon, L.H. Allen Jr. (ithaca, N.Y., U.S.A.) D.W. Stewart (Swift Current, Sask., Canada) and S.E. Jensen (Copenhagen, Denmark)

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Part IV - Epilogue

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287

Plant m o d i f i c a t i o n for more efficient water use: the challenge D.N. Moss (St. Paul, Minn., U.S.A.), J.T. Woolley (Urbana, Ill., U.S.A.) and J.F. Stone (Stillwater, Okla., U.S.A.) . . . . . . . . . . . . . . . . . . .

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Wind reduction by a highly permeable tree shelterbelt D.R. Miller, N.J. Rosenberg and W.T. Bagley (Lincoln, Nebr,, U.S.A.) . . . . . . 321 A comparison of urban and forest microclimates in the midwestern United States F.L. Johnson, D.T. Bell and S.K. Sipp (Urbana, II1., U,S.A.) . . . . . . . . . 335 Ventilation in a forest H.R. Oliver (Wallingford, Great Britain) . . . . . . . . . . . . . . . 347 Response of corn (Zea mays L.) in the pre-tassel-initiation period to temperature and photoperiod M.C. Coligado and D.M. Brown (Guelph, Ont., Canada) . . . . . . . . . . 357 A rapid method for the determination of potential transpiration derived from the Penman combination model A.B. Messem (Bury St. Edmunds, Great Britain) . . . . . . . . . . . 369 Relationships between the production of forage maize and accumulated temperature, Ontario Heat Units and solar radiation R.H. Phipps, R.J. Fulford and F.C. Crofts (Reading, Great Britain) . . . . . . . 385 The production of forage maize and the effect of bitumen mulch on soil temperature R.R. Phipps (Reading, Great Britain) and J. Cochrane (Bracknell, Great Britain) 399 Computing the energy budget of a leaf canopy with matrix algebra and numerical integration G.M. Furnival, P.E. Waggoner and W.E. Reifsnycler (New Haven, Conn., U.S.A.} 405 A method for categorizing shelterbelt porosity A. Bean (Stamford, Conn., U.S.A.), R.W. Alperi (West Mifflin, Pa., U.S.A.) and C.A. Federer (Durham, N.H., U.S.A.) . . . . . . . . . . . . . . . . . . . 417 Book Reviews Modifying the Weather: A Social Assessment, by W.R.D. Sewell et al. - W.J. Maunder Arizona Climate, 1931-1972, by W.D. Sellers and R.H. Hill (Editors) - R.S. Bradley Climatology from Satelites, by E.C. Barrett - W.J. Maunder . . . . . . . . .

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431 433 434

Recently published papers I Recently published papers II Erratum

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437 455

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478