Abstract
To determine the heat accumulation required for bloom and harvest of ‘Sirora’ pistachio (Pistacia vera) trees, 6510 and 25,609 combinations of base temperature (Tb), optimum temperature (Tu) and critical temperature (Tc) were tested. Using eight seasons’ data, we attempted to find the smallest variation for heat accumulation for bloom and harvest. The combination of Tb=−1, Tu=26 and Tc=26 for bloom and Tb=14 and Tc=32 for harvest resulted in the lowest value for the coefficient of variation. Validation was performed using actual harvest data from 2 further years from the orchard used for the initial modelling and 10 years from other orchards in different regions. Reasonable results were obtained for the major Australian pistachio production areas. The data from the cooler Nhill area did not fit this model. The reason for this has been explored.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
