A generalization of the stress-degree-day concept of yield prediction to accommodate a diversity of crops

✍ Scribed by S.B. Idso; R.J. Reginato; J.L. Hatfield; G.K. Walker; R.D. Jackson; P.J. Pinter Jr.

• Publisher: Elsevier Science
• Year: 1980
• Weight: 445 KB
• Volume: 21
• Category: Article
• ISSN: 0002-1571
• DOI: 10.1016/0002-1571(80)90053-9

✦ Synopsis

Data from seven different crops, some of which were grown in three different locations and in three different years, with a variety of planting dates, seeding rates, and irrigation regimes have been combined to develop a single broad relationship between yield, as normalized for solar radiation reception over the crop's vegetative growth stage, and the summation of stress-degree-days accumulated over the crop's reproductive growth stage. Some reasons for expecting a common relationship of this type are presented, along with suggestions for future modifications that may be required as data from still other crops and climates are acquired.