738 
28. AJ.Richardson and J.H.Everitt. 1987. Monitoring Water Stress in Buffiegrass using Hand Held Radiometers 
International Journal of Remote Sensing, vol. 8. No. 12:1797-1806. 
29. A.RHeute. 1987. Soil and Sun-angle Interactions on Partial Canopy Spectra. International Journal of Remote 
Sensing, vol. 8, No. 9:1307-1317. 
30. N.M.Milton. B.A.Eiswerth and C.M.Ager. 1991. Effect of Phosphorous Deficiency on Spectral Reflectance 
and Morphology of Soybean Plants. Remote Sensing of the Environment, vol. 36:121-127. 
31. W.B.Cohen. 1991. Temporal versus Spatial Variation in Leaf Reflectance under Changing Water Stress 
Conditions. International Journal of Remote Sensing, vol. 12, No. 9:1865-1876. 
32. A.Kuusk. 1991. The Angular Distribution of Reflectance and Vegetation Indices in Barley and Clover 
Canopies. Remote Sensing of the Environment, vol. 37:143-151. 
33. P.J.Pinter, RD.Jackson, C.E.Ezra and H. W.Gausmann. 1985. Sun-angle and Canopy Architecture Effects on 
the Spectral Reflectance of six Wheat Cultivars. International Journal of Remote Sensing, vol. 6, No. 12:1813- 
1825. 
34. D.S.Kimes. W.W.Newcomb, J.B.Schutt P.J.Pinter and RD.Jackson. 1984. Directional Reflectance Factor 
Distributions of a Cotton Row Crop. International Journal of Remote Sensing, vol. 5, No. 2:263-277. 
35. RD.Jackson, P.J.Pinter, S.B.Idso and RJ.Reginato. 1979. Wheat Spectral Reflectance Interactions between 
Crop configuration, Sim elevation and Azimuth angle. Applied Optics, vol. 18, p3730. 
36. J.C.Kollenkark. V.C. Vandeibelt and C.S.T Daughtry 1982. Influence of Solar Illumination Angle on 
Soybean Canopy Reflectance. Applied Optics, vol. 21, pi 179. 
37. V.I.Mvers, M.E.Bauer, H.W.Gausman, W.G Hart J.L.Heiman. RB.MacDonald, A_B.Park, RA.Ryeerson. 
T.J.Schmugge and F.C.Westin. 1983. Remote Sensing Applications in Agriculture. In Manual of Remote Sensing. 
2nd edition. American Society' of Photogrammetry and Remote Sensing, Falls Church. Virginia. 
38. D.Lord, R.L.Desjardins and P.A.Dube. 1985. Influence of Wind on Crop Canopy Reflectance Measurements. 
Remote Sensing of the Environment, vol. 18:113-123. 
39. ARHeute. 1987. Soil Dependent Spectral Response in a Developing Plant Canopy . Agronomv Journal, vol 
79:61-68. 
40. A.RHeute. 1988. Soil and Atmosphere Influences on the Spectra of Partial Canopies. Remote Sensing of 
Environment, vol. 25:89-106. 
41. G.Guyot. 1990. Optical Properties of Vegetation Canopies in Applications of Remote Sensing. ppl9-43. Ed by 
MD.Steven & J.A,Clark. Butterworths. 
42. P.J.Curran. 1985. Principles of Remote Sensing. 2nd Ed, John Wiley & Sons, New York. p34. 
43. E.Epstein. 1972. Mineral Nutrition of Plants: Principles & Perspectives. John Wiley’ & Sons, New York. 
44. D.N.H.Horler. M.Dockray and J.Barber. 1983. The Red Edge of Plant Leaf Reflectance. International Journal 
of Remote Sensing, vol. 4, No 2:273-288. 
45. W.Collins. 1978. Remote Sensing of Crop Type and Maturity. Photogrammetric Engineering and Remote 
Sensing vol. 44, No 1:43-55. 
46. E.W.Chappelle. M.S.Kim and J.E.McMurtrey. 1991. The Red Edge Shift: An Explanation of its Relationship 
to Stress and the Concentration of Chlorophyll A. IEEE. pp2287-2290. 
47. P. J Curran. J.L.Dungan. B.A Macler and S F. Pl umm er 1991. The Effect of a Red Pigment on the 
Relationship between Red Edge and Chlorophyll Concentration. Remote Sensing of the Environment vol. 35:69- 
76. 
48. V.C.Vanderbelt. S.L.Ustin and J.Clark. 1988. Canopy Geometry Changes due to Wind, cause Red Edge 
Spectral Shift. IGARSS '88 Symposium. Edinburgh, Scotland, 13-16 Sept. 1988. p835. 
49. M.D.Steven. T.J.Malthus, T.H.Dimetriades-Shah. F.M.Danson and J.A.Clark 1990. High Spectral 
Resolution Indices for Crop Stress in Applications of Remote Sensing. Ed by Steven & Clark, Butterworths. 
50. H.T.Breece & R A.Holmes. 1971. Bidirectional scattering characteristics of healthy green soybean and com 
leaves in vivo. Applied Optics, vol. 10:119-127. 
51. M J.Duggin & V. Whitehead. 1982. Remote sensing and vegetation stress detection: problems and progress. 
Proceedings of SPEE-The International Society for Optical Engineering, vol. 363:2-10. 
52. I.D.Hinzman. M.E.Bauer and C.S.T.Daughtiy. 1986. Effects of nitrogen fertilization on growth and 
reflectance characteristics of winter wheat. Remote sensing of the Environment vol. 19:47-61. 
53. B.N.Holbea J.B.Schutt and J.McMurtrey. 1983. Leaf water stress detection utilising thematic mapper bands 
3,4 and 5 in soybean plants. International Journal of Remote Sensing vol. 4, No. 2:289-297. 
54. F.Boochs, G.Kupfer. K.Docker and W.Kuhbauch. 1990. Shape of the red edge as vitality indicator for plants. 
International Journal of Remote sensing vol. 11, No. 10:1741-1753.