Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

Export kiwifruit - when size matters

The more kiwifruit on a Hort16A vine the smaller the fruit - but how much smaller may depend on where the plant is grown. HortResearch scientists Annette Richardson, Kevin Patterson and Philip Martin have recently completed a preliminary investigation of the relationship between fruit number and fruit size on Hort16A vines, which was funded by KNZ.

Crop loading relationship on Hort16A vines were developed from data from two seasons in Kerikeri and three seasons in the Bay of Plenty. Mean fruit weight decreased linearly as fruit numbers increased. However the relationship between crop load and final fruit size on the new golden kiwifruit was considerably different on vines in Kerikeri and those in the Bay of Plenty. The Bay lived up to its name, with a decrease in average fruit weight of only 2.4g when fruit numbers were increased by 10fruit/m2 of canopy, compared to a decrease of 5.5g for a similar increase in crop load on vines in Kerikeri.

As growers look for premium, export quality fruit, information such as this is vital for vine management. From this preliminary evaluation of crop loading on Hort16A vines it is recommended that growers in the Bay of Plenty aim to harvest around 40 fruit/m2 of orchard canopy area, to produce fruit with a mean weight of 100g or larger. In Kerikeri, a crop load of around 35 fruit/m2 should give a mean fruit weight of around 100g on well-managed vines.

Further investigations are now needed to confirm this important result, as well as to examine the sustainability of high crop loads and their effects on fruit maturity and colour.

ends

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 


Stats: Auckland’s Population Falls For The First Time
In the wake of the COVID-19 pandemic, New Zealand’s population growth slowed down with Auckland recording a population decline for the first time ever, Stats NZ said today. “New Zealand saw slowing population growth in all regions... More>>



BusinessNZ: Third Snapshot Report Reveals $9.5 Billion Business Investment In Climate Action

Signatories to the Climate Leaders Coalition have committed to invest $9.5 billion over the next five years to reduce emissions from their businesses, as revealed in their third anniversary snapshot report released today... More>>

Digitl: The home printer market is broken
Printers are more of a security blanket that a serious aid to productivity. Yet for many people they are not optional.
Even if you don’t feel the urge to squirt ink onto dead trees in order to express yourself, others will insist on printed documents... More>>


Retail NZ: Some Good News In COVID Announcements, But Firm Dates Needed

Retail NZ is welcoming news that the Government is increasing financial support for businesses in light of the ongoing COVID-19 lockdown, and that retail will be able to open at all stages of the new “Covid Protection Framework... More>>

ComCom: Companies In Hot Water For Selling Unsafe Hot Water Bottles And Toys

A wholesaler and a retailer have been fined a total of $140,000 under the Fair Trading Act for selling hot water bottles and toys that did not comply with mandatory safety requirements. Paramount Merchandise Company Limited (Paramount) was fined $104,000 after pleading guilty in the Manukau District Court... More>>



Reserve Bank: Robust Balance Sheets Yield Faster Economic Recovery

Stronger balance sheets for households, businesses, financial institutions and the government going into the pandemic contributed towards maintaining a sound financial system and yielding a faster economic recovery than following previous deep recessions... More>>