Increasing cherry production potential through adaptability indexing CK van Wyk
• Winters are not cold enough to satisfy winter chilling requirements in certain growing regions. Current • Impact of lack chilling = negative impacts on production & limits industry growth industry • Lack of evaluation data and info on new cultivars to SA conditions challenges • Lack of knowledge for upcoming farmers (why?) Negative impacts • Reduced income potential • Wasted expenses, resources & time
Problems with poor adapted cultivars • Reduced budbreak • Delayed foliation • Poor ability to fill space • Prolonged periods of flowering = uneven fruit development • Reduced fruit set • Poor fruit quality
Our solution Improved Plant evaluation evaluation and advice Identify G x E data Adaptability drivers of collection adaptability Statistical Indexing analysis
Aim of index Accurate 03 recommendations of performance Identify drivers for 02 and stability production optimisation Increase 01 knowledge of cultivars 01 02 03
Timeline Planting in Genotypic Data Statistical Ranking Identify MET Indexing selection collection analysis cultivars Drivers format 21 Jan 2019 2027 2021
Genotypic selection Low chill Medium chill High chill Royal Hazel Royal Dawn Sweetheart Nursery trees Royal Tioga Frisco Royal Edie Royal Royal Lynn Lapins Helen 7 Sequoia
1500 CU Nooitgedacht 1000 CU Lushof 500 CU Klipboschlaagte Site selection
• Literature to support the adaptability theory and statistical analysis • Consultation with statistician experimental design • Consultation with academics Project • Order of trees and collection of trees preparation for planting • Visit sites - consultation with farm managers • Cherry Production Guide • Regular meetings with other students and supervisors
10 Who benefits? Producers Plant breeders IP owners Researchers Reflects breeding Ranking best Improved feedback of Serves as foundation potential against field performing cultivars strong and weak for future research performance in varying on your farm aspects of each environments cultivar
Additional benefits of the adaptability indexing • Reduced planting risk • Increased cultivar knowledge • Promote sustainable cherry production • Promote growth of small-scale cherry farming • Begin preparation for climate change • Cherries as good fruit model
Thank you
Q & A
Recommend
More recommend
