South African Avocado Growers’ Association

1989 Yearbook

Volume 12

Table of Contents

 

5.       Opening address of the twelfth SAAGA Research Symposium, March 1, 1989
J M Kotzé

7.       Aspects of the economy of avocado production in South Africa
J C Toerien

10.     Biocontrol of avocado postharvest diseases
L Korsten, J J Bezuidenhout and J M Kotzé

13.     Project to characterise avocado viruses
J V da Graca and Cheryl A Crookes

14.     Observations on the quality of avocados on the overseas market
H Y H LeClercq

17.     Modified atmosphere storage and transport of avocados - what does it mean?
J P Bower, J G M Cutting and A B Truter

21.     Changes in starch and ammonia metabolism during low temperature stress-induced flowering in Hass avocado a preliminary report
June M Nevin and Carol J Lovatt

26.     Transport simulation test with avocados and bananas in controlled atmosphere containers
G J Eksteen and A B Truter

33.     Carbohydrate and phenological cycling as management tools for avocado orchards
B N Wolstenholme and A W Whiley

38.     Comparison of growth regulators paclobutrazol and uniconazole on avocado
J S Köhne and Sylvie Kremer- Köhne

40.     Response of potted Mass avocado plants to paclobutrazol drenches
P R R Symons and B N Wolstenholme

43.     Cation distribution during soil profile amelioration with lime and gypsum
RO Barnard

48.     Verwantskap tussen die chemiese samestelling van die grond asook die blare van  Fuerte-avokadobome en fisiologiese na-oesvrugafwykings
T J Koen, S F du Plessis and Antoinette Hobbs

50.     The active control of calcium allocation in avocado trees
J G M Cutting and J P Bower

53.     Effect of abscisic acid on abscisic acid metabolism, PRO activity, phenolics and quality in ripening avocado
J G M Cutting, J P Bower, P J Hofman and B N Wolstenholme

56.     Evaluating micro-organisms from avocado soils for antagonism to Phytophthora dnnamomi
Erna M C Maas and J M Kotzé

58.     Seisoensvoorkoms van verskillende stadia van die hartvormige dopluis op avokado's
E A deVilliers

60.     An evaluation of in vitro screening techniques for determining tolerance of avocado rootstocks to Phytophthora cinnamomi
T Botha, F C Wehner and J M Kotzé

64.     Exudates of avocado rootstocks and their possible role in resistance to Phytophythora cinnamom
T Botha and J M Kotzé

66.     Susceptibility of avocado rootstocks to Phytophthora cinnamomi
T Botha and J M Kotzé

68.     Chemical control of pre- and postharvest diseases of avocados
J H Lonsdale and J M Kotzé

71.     Verband tussen temperatuur en vrugkwaliteit van avokado's onder kommersiéle toestande
J J Bezuidenhout, J C Toerien and L L Vorster

74.     Die invloed van blaar- en worteltoedienings van boor op vrugopbrengs by avocado
P J Robbertse, L A Coetzer, M Slabbert and N G N Swart

76.     Factors involved in fruit quality
L L Vorster, J C Toerien and J J Bezuidenhout