Increasing cherry production potential through adaptability - - PowerPoint PPT Presentation

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Nov 18, 2022 356 likes •497 views

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

SLIDE 1

Increasing cherry production potential through adaptability indexing

CK van Wyk

SLIDE 2

Current industry challenges (why?)

Winters are not cold enough to satisfy

winter chilling requirements in certain growing regions.

Impact of lack chilling = negative impacts
n production & limits industry growth
Lack of evaluation data and info on new

cultivars to SA conditions

Lack of knowledge for upcoming farmers

Negative impacts

Reduced income potential
Wasted expenses, resources & time

SLIDE 3

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

SLIDE 4

Our solution

Adaptability

Improved evaluation and advice Identify drivers of adaptability Indexing Statistical analysis G x E data collection Plant evaluation

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Aim of index

01 02 03

Increase knowledge of cultivars

01

Identify drivers for production

ptimisation

02

Accurate recommendations

f performance

and stability

03

SLIDE 6

Timeline

Data collection Planting in MET format Genotypic selection Statistical analysis Ranking cultivars Identify Drivers

Indexing

21 Jan 2019 2021 2027

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Genotypic selection Low chill Royal Hazel Royal Tioga Royal Lynn Medium chill Royal Dawn Frisco Lapins Sequoia High chill Sweetheart Royal Edie Royal Helen

Nursery trees

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Site selection

Nooitgedacht Lushof Klipboschlaagte 1500 CU 1000 CU 500 CU

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Project preparation

Literature to support the adaptability

theory and statistical analysis

Consultation with statistician

experimental design

Consultation with academics
Order of trees and collection of trees

for planting

Visit sites - consultation with farm

managers

Cherry Production Guide
Regular meetings with other students

and supervisors

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Who benefits?

Ranking best performing cultivars

n your farm

Producers

Reflects breeding potential against field performance in varying environments

Plant breeders

Improved feedback of strong and weak aspects of each cultivar

IP owners

Serves as foundation for future research

Researchers

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Additional benefits

f 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

SLIDE 12

Thank you

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