22191 version 1
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Demonstrate knowledge of factors which influence plant growth
Level
2
Credits
5
Purpose
This unit standard is for people working, or intending to work, in horticulture.
People credited with this unit are able to: identify environmental factors
which influence vegetative and fruit growth; identify other factors which
influence vegetative and fruit growth; demonstrate knowledge of a specific
crop which is grown using environmental techniques to improve plant
production and crop quality.
Subfield
Horticulture
Domain
Production Horticulture
Status
Registered
Status date
25 July 2006
Date version published
21 August 2006
Planned review date
31 December 2011
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0032
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
None.
 New Zealand Qualifications Authority 2016
22191 version 1
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Elements and performance criteria
Element 1
Identify environmental factors, which influence vegetative and fruit growth.
Performance criteria
1.1
Climatic factors are identified and how they affect vegetative and fruit growth is
explained.
Range
1.2
Physical factors are identified and how they affect plant growth is explained.
Range
1.3
temperature, light, rainfall, wind, humidity.
soil type, topography, aspect, frost.
Environmental techniques are described in terms of how they can be
manipulated to maximise plant growth.
Element 2
Identify other factors, which influence vegetative and fruit growth.
Performance criteria
2.1
Plant breeding is discussed in terms of how it can influence optimum plant
growth.
2.2
Crop management techniques are discussed in terms of showing how they can
maximise fruit and vegetative quality.
Range
pest and disease control, pruning, thinning, plant support
structures, fertilising and irrigation.
Element 3
Demonstrate knowledge of a specific crop, which is grown using techniques to improve
plant production and crop quality.
Performance criteria
3.1
Factors that enhance a specific crop to achieve maximum vegetative and fruit
growth are explained.
3.2
Techniques that enhance a specific crop to achieve maximum plant growth are
explained.
 New Zealand Qualifications Authority 2016
22191 version 1
Page 3 of 3
Please note
Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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.
Comments on this unit standard
Please contact the Primary Industry Training Organisation via their website
www.primaryito.ac.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016