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Title / Demonstrate knowledge of grapevine biology and physiology
Level / 5 / Credits / 10
Purpose / This unit standard is for people working in the viticulture industry. People credited with this unit standard are able to demonstrate knowledge of grapevine physiological processes, environmental influences, growth and production cycle manipulation in the planting, cultivation and care of wine grapes.
Classification / Horticulture > Viticulture
Available grade / Achieved
Explanatory notes
None.
Outcomes and evidence requirements
Outcome 1
Structure, functions and processes of a grapevine are described.
Evidence requirements
1.1The structure and function of the vegetative grapevine are described.
Rangeshoot system, root system, leaves, buds.
1.2The structure and function of the grapevine flower and berry are described.
Rangeinflorescence, berry, bud.
1.3The growth processes of a grapevine are described.
Rangebud initiation, pollination, fertilisation, berry development, photosynthesis, respiration, translocation.
1.4The annual growth cycle of the grapevine is described.
Rangebud dormancy, bud initiation, bud break, shoot and leaf growth, root growth, flowering, fruit set, berry growth, leaf fall.
Outcome 2
Explain the factors which influence the growth processes in grapevines.
Evidence requirements
2.1Internal plant processes are described in terms of how they affect grape growth.
Rangephotosynthesis, respiration, transpiration, translocation and carbohydrate accumulation, nutrient uptake, berry development.
2.2The environmental influences, which impact on the internal processes of the grapevine are described.
Rangetemperature, water, humidity, light, shade, nutrition, wind.
Outcome 3
Demonstrate knowledge of plant physiology in the manipulation of grapevine growth or production cycles.
Evidence requirements
3.1Identification of perceived change in growth or production cycle provides basis for determining manipulation requirements.
Rangeearly maturity, late maturity, improved yield, improved quality, grapevine balance.
3.2Internal plant processes are described in terms of how they can be manipulated to achieve the desired results.
3.3Planning determines which influences will be altered and by what amount to manipulate each growth process to meet the desired result.
3.4Practical methods used to meet the desired result are described.
Rangerootstocks, cultivars, site selection, row orientation and spacing canopy manipulation, soil management, pest and disease control, irrigation, frost control, weed control and shelter.
Replacement information / This unit standard and unit standards 19941 and 21955 were replaced by unit standard 29900.This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 22 May 2003 / 31 December 2020
Revision / 2 / 24 February 2006 / 31 December 2020
Review / 3 / 16 February 2017 / 31 December 2020
Consent and Moderation Requirements (CMR) reference / 0052
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
Primary Industry Training OrganisationSSB Code 101558 / New Zealand Qualifications Authority 2018 / / New Zealand Qualifications Aut