South African Avocado Growers’ Association
2001 Yearbook
Volume 24
Table of Contents
viii Foreword
1 Effect of gibberellic acid
treatments on flower development of avocado
T
Rossouw
and P J Robbertse
5 An overview of the export market
situation and fruit quality during the 2000 avocado season
R M Nelson, J J Bezuidenhout and D J Donkin
13 Efficacy of H3PO3
leaf sprays and resistance of Phytophthora cinnamomi to H3PO3
J
A Duvenhage
17 Maximum maturation stage: Factors
affecting the post-storage quality of fruits taken from a Fuerte and Hass
orchard
S
A Oosthuyse and D Donkin
25 The use of calcium for fruit
quality improvement in Pinkerton avocados
M
G Penter, B Snijder and M. Kritzinger
29 Further work on the Epidemiology
of Pepper Spot
M H Schoeman and B Q Manicom
33 Breeding and field testing of new
avocado rootstocks for increased Hass yields and resistance to root rot
S
Kremer-Köhne, J A Duvenhage and S M Mailula
35 Mesocarp discoloration in the Pinkerton cultivar
Z
van Rooyen and J P Bower
43 New
Hass-like avocado
cultivars at Merensky Technological Services - further progress in 2000
S
Kremer-Köhne
45 Modification of ethylene-induced
ripening of 'Hass' avocados by an ethylene absorbing filter
Deirdre M Holcroft and Liezl Kruger
49 Updating Pinkerton export
parameters and evaluation of new and upgraded avocado postharvest applications
F J Kruger, M Kritzinger, R Malumane, M Penter, B Snijder and N
Claassens
52 Avocado tree management - a
holistic approach: Chemical manipulation
M G Penter and B Snijder
55 Aspects of the water economy of
avocado trees (Persea Americana, cv. Hass)
Yehoshua Sharon, Ben-ami Bravdo and Nechama Bar
60 Geintegreerde beheer van
suigbesies (Hemiptera) in avokadoboorde
I J Bruwer
67 Lamb Hass evaluation at Westfalia
Estate - final report
S
Kremer-Köhne and JS Köhne
69 Preliminary results of trials
with clonal rootstocks for Hass avocado
J L Foguuet, H Vinciguerra, J L Gonzáles, L Sabaté and A S Blanco