Evo dva fina dokumenta o određivanju faze porasta pšenice i o uticaju regulatora rasta na prinos pšenice:
http://www.grdc.com.au/uploads/documents/GRDC%20Cereal%20Growth%20Stages%20Guide1.pdf
http://www.tia.tas.edu.au/__data/assets/pdf_file/0004/392476/PGR-factsheet-18.6-AM.pdf
http://www.grdc.com.au/uploads/documents/GRDC%20Cereal%20Growth%20Stages%20Guide1.pdf
http://www.tia.tas.edu.au/__data/assets/pdf_file/0004/392476/PGR-factsheet-18.6-AM.pdf