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The kiwifruit cultivar bred in New Zealand called 'Gold9' and marketed as Zespri Charm was in the end a failed variety.  Why?

Question

The kiwifruit cultivar bred in New Zealand called 'Gold9' and marketed as Zespri Charm was in the end a failed variety. Why?

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Solution

The 'Gold9' kiwifruit cultivar, marketed as Zespri Charm, was a failed variety due to its susceptibility to the bacterial disease Pseudomonas syringae pv. actinidiae (Psa). This disease causes leaf spotting, cane dieback, and ultimately plant death, making the cultivar commercially unviable. Despite the initial promise of the Gold9 variety, including its appealing taste and golden flesh, the vulnerability to Psa led to its downfall. The New Zealand kiwifruit industry had to remove and replace many Gold9 vines to mitigate the spread of the disease and protect other cultivars.

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