• Corpus ID: 54660415

Vegetative growth and fruit retention in avocado as affected by a new plant growth regulator (Paclobutrazol)

  title={Vegetative growth and fruit retention in avocado as affected by a new plant growth regulator (Paclobutrazol)},
  author={J. S. Kohne and Sylvie Kremer-Kohne},
INTRODUCTION Avocado trees grown in the warm and humid Tzaneen area tend to grow very vigorously, especially since most commercial orchards have been cured of Phytophthora root rot. In the avocado the balance between vegetative and reproductive growth is easily tipped in favour of excessive vegetative growth during the spring growth flush, especially in Fuerte, with consequent poor fruit-set and low calcium content in the fruit (Witney, Wolstenholme & Hofman, 1986). The calcium content plays an… 

The Effect of Growth Inhibitors on Vegetative Growth, Fruit Size and Fruit Set in Hass Avocado Trees: A Preliminary Report

Until recently, the primary means of controlling encroachment in avocado orchards was the removal of trees once overcrowding started to limit production. However, recent work has shown that tree


The results showed that gibberellic acid applied during the floral bud inductive period delayed sprouting, reduced the number of flowers per panicle, increased apical shoot length, and delayed fruitlet abscission, so that the competition between developing organs is not the cause of the lack of fruit set in this species.

Yield Advantages and Control of Vegetative Growth in a High-Density Avocado Orchard Treated with Paclobutrazol

Hass' avocado trees on Duke 7 rootstock were planted in March, 1986, at a standard density of 400 trees/ha and also at a high density of 800 trees/ha. The growth retardant paclobutrazol was

Ecophysiological studies and tree manipulation for maximisation of yield potential in avocado (Persea americana Mill.)

Tree fruit crops generally consist of SCIOn and rootstock components, which through interactive synergism affect tree performance. Coupled with tree architecture, sink/source relationships (both

Effect of Paclobutrazol Bloom Sprays on Fruit Yield and Quality of cv. Hass Avocado Growing in Subtropical Climates

Bloom foliar sprays of paclobutrazol (PB) at 2.5, 1.25 and 0.62 g a.i./L on avocado (Persea americana Mill, cv. Hass) trees reduced spring flush shoot length and redistributed dry matter among the

Requirements for Improved Fruiting Efficiency in the Avocado Tree

The merits and possible problems of an alternative philosophy based on selecting dwarfing rootstocks are outlined, with reference to ecophysiological research, and breeding objectives for greater fruiting efficiency are discussed.

Aspects of developing Tasmannia lanceolata for commercial extract production

Investigation of climatic and nutritional effects on the growth and plant extract yield and quality of Tasmannia lanceolata showed that understanding the ecophysiological implications and managing for high winds and temperature will be key to successful commercial production and carefully targeted nutrition.




Seasonal trends of Ca in Fuerte and Hass avocado fruits from vigorous and non-vigorous trees were studied, with a view to increasing fruit Ca for better storage ability and reduced post-harvest problems.

Effect of Paclobutrazol and Analogs on Growth, Yield, Fruit Quality, and Storage Potential of ‘Delicious’ Apples

  • D. Greene
  • Biology
    Journal of the American Society for Horticultural Science
  • 1986
A postbloom foliar application of 1500 and 3000 ppm paclobutrazol (PB) increased flesh firmness of ‘Delicious’ apple (Malus domestica Borkh.) but reduced seed number and fruit size at harvest. The

Post - harvest physiological problems of avocados

  • S Afr Avocado Growers ' Assoc Yrb
  • 1985

Principles and procedures of statistics.

Fruitlet abscission and spring growth retardation - their influence on avocado productivity (in Hebrew)

  • MSc Dissertation. The Hebrew Univ of Jerusalem
  • 1979