Root/Shoot
The role of root temperature on bud dormancy in persimmon (Diospyros kaki L.) was investigated using two year old container grown persimmon seedlings. The seedlings were placed in a controlled temperature environment after leaf fall. Shoots were ... [... more]
HortNET New Zealand |
Pest and disease resistance in pipfruit rootstocks
The natural resistances of apple and pear trees to insects and diseases have had a major impact on the New Zealand pipfruit industry. For example, in the late 19th century, the apple industry was doomed due to the devastating effect woolly apple ... [... more]
HortNET New Zealand |
Figure 5.
Careful attention to summer and winter pruning will improve persimmon yields on the Ruakura ‘Y’ trellis. Photo 1. Lee Barret, Horticultural Adviser, MAF, Pukekohe, in action, pruning back vigorous leader growth on Fuyu. These leaders were not cut ... [... more]
HortNET New Zealand |
Timing Of Nitrogen Absorption in Kiwifruit
Kiwifruit accumulate large amounts of nutrients in vegetative growth during spring. Only part of this can be supplied by the limited reserves in the upper portion of the vine's perennial framework. Recognition of this has lead to the ... [... more]
HortNET New Zealand |
Does Sclerotinia Infect Your Floral Tissue?
Research into the environmental conditions required for Sclerotinia to infect kiwifruit flowers and fruitlets is currently being undertaken at Ruakura Research Centre. This research, also aims to establish the significance of floral tissue ... [... more]
HortNET New Zealand |
Pathogen-free accessions
The New Zealand Citrus Budwood Scheme (NZCBS) has now been operating for 4 years. During this time we have supplied over 538,000 buds to citrus propagators in the Northland, Auckland, Bay of Plenty, Gisborne and Hawkes Bay districts. The primary ... [... more]
HortNET New Zealand |
1996 Overview Of New Zealand's Fresh Cut Flower Exports
The July 1995 to June 1996 year has seen the first reduction in fresh cut flower exports for over eight years. The total value of exports dropped by 3.2% to NZ$47,933,389 (FOB), with nearly all countries purchasing less. The largest fall in ... [... more]
HortNET New Zealand |
BACKGROUND
Tree vigour continues to be a major concern in cherry production. Growers currently continue to prune trees heavily to maintain the required height. Tree vigour may be controlled by several ways, which include use of dwarfing rootstock, use of ... [... more]
HortNET New Zealand |
Extraction of juice and oil from fresh lemons
New Zealand lemon oil ( Villafranca on Citrus sinensis rootstock) has unusual characteristics which set it apart from lemon oils produced in other countries. The oil exhibits an optical rotation outside of the range commonly used to define a ... [... more]
HortNET New Zealand |
References
Peony flowers (Paeonia hybrids) are herbaceous plants with large, showy flowers in white, pink, rose and red colours, and are much valued as a cut flower, especially by the Chinese community. They are members of the Ranunculaceae family, which ... [... more]
HortNET New Zealand |
Citrus Viroids
Citrus trees in NZ orchards show considerable variablility in performance, manifested in the tree size, shape and appearance of the bud union and stock. This variability has been linked with off-type rootstocks and infection with a number of ... [... more]
HortNET New Zealand |
The number one rule
Water availability varies between the different horticultural regions from being in plentiful supply to being a limited or scarce resource. In many districts, growers now need to monitor their water use with a water meter. However, regardless of ... [... more]
HortNET New Zealand |
