Ruhal D.S., Dadhwal V.K., Parihar J.S., Jarwa! S.D., Medavy 
T.T., Singh J., Khera A.P. (1988). Studies on within crop 
variability in wheat using Landsat TM data. Proc. Nat. Symp. 
Remote Sensing in Rural Development, Nov. 17-19, 1988, 
Hisar. Indian Soc. Remote Sensing, pp. 199-208. 
Quarmby N.A., Milnes M., Hindle T.L., Silleos N. (1993). The 
use of multi-temporal NDVI measurements from AVHRR data 
for crop yield estimation and prediction. International Journal 
of Remote Sensing, 14(2): 199-210. 
Rosenthal W.D., Hammer G.L., Butler D. (1998). Predicting 
regional grain sorghum production in Australia using spatial 
data and crop simulation modelling. Agricultural and Forest 
Meteorology, 91:263-274. 
Sankhla D.S., Purohit N.L., Joshi F.K., Ravi N., Sudha 
Ravindranath and Dadhwal V.K.. (1997). District-level mustard 
crop estimation for Rajasthan: Improving precision by in- 
season digital stratification. Journal of Indian Society of 
Remote Sensing, 25(3): 169-176. 
Sehgal V.K., KalraN., Aggarwal P.K., Dadhwal V.K., Sharma 
S.K., Harit R.C. (1999). Yield estimation in farmer’s fields 
using wheat growth simulator (WTGROWS) and satellite data. 
In National Workshop on Dynamic Crop Simulation Modelling 
for Agrometeorological Advisory Service', Jan. 4-6, 1999, N. 
Delhi, NCMRWF, N. Delhi. 
Sharma T., Navalgund R.R. (1995). Integrated use of remote 
sensing and GIS for crop yield modelling. In 'Proceeding of 
National Symposium. Remote Sensing of Environment with 
special Emphasis on Green Revolution', pp. 3-10, Indian 
Society of Remote Sensing. 
Singh R., Goyal R.C., Saha S.K. and Chhikara R.S. (1992). 
Use of satellite spectral data in crop yield estimation surveys. 
International Journal of Remote Sensing. 14:2583-2592. 
Singh R.P., Chaudhari K.N., Sridhar V.N., Singh V.B.. Rajesh 
Sharma, Sharma N.K. and Raza S.A. (1997). Classification 
accuracy assessment for wheat using multispatial resolution 
IRS data. National Symposium on Remote Sensing for 
Sustainable Management with special emphasis on 
Infrastructure Development, 26-28 November. 1997. 
Hyderabad, pp. 19-20. 
Supit I. (1997). Predicting national wheat yields using a crop 
simulation and trend models. Agricultural and Forest 
Meteorology, 88:199-214. 
Thornton P.K., Bowen W.T., Ravelo A.C., Wilkens P.W., 
Farmer G., Brock .1., Brink J.E. (1997). Estimating millet 
production for famine early warning: An application of crop 
simulation modelling using satellite and ground-based data in 
Burkina Faso. Agricultural and Forest Meteorology, 83:95- 
112.