Abstract
The influence of nine Actinidia deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson var. deliciosa rootstocks and four ‘Hayward’ strains on the growth and cropping performance of kiwifruit vines 4, 5, and 6 years after grafting was determined. Canonical discriminant analysis was effective in summarising the complex relationships of the data, distinguishing among rootstocks and ‘Hayward’ selections on the basis of field performance. Plants grafted on rootstock 4 (male) were distinctive and characterised by strong trunk growth and large fruit size over the three seasons. In contrast, scions on the female rootstocks 7 and 9 were less productive in the second and third seasons. Ungrafted own‐rooted vines had high yield in two seasons. ‘Hayward’ A as a scion achieved the best field performance in yield and fruit sizing across eight root systems in two seasons. Vines grafted with ‘Hayward’ B showed low productivity.
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