Presentation to the New Zealand Asparagus Council conference at Napier. Sarah Sinton presented.

Aspire Asparagus Lite is free and open source Android phone app to assist in the management of carbohydrate reserves of asparagus crops. The App is available from the Google Play Store

Nelson, Warrick

Sinton, Sarah

Wilson, Derek

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The New Zealand Institute for Plant & Food Research LimitedUpdated asparagus root carbohydrate monitoring system –Aspire Lite phone app.Warrick Nelson, Sarah Sinton, Derek WilsonThe New Zealand Institute for Plant & Food Research LimitedAsparagus physiology research history» Plant & Food Research asparagus breeding programme started in the 1970’s.» Early 1990 irrigation trial; more water = lower yield!» Realised that this perennial crop’s performance was strongly affected by previous management.» Using govt funding, we quantified the relationship between annual carbohydrate (CHO) content dynamics in the root system and subsequent yield.The New Zealand Institute for Plant & Food Research LimitedExperiment: spear harvest at different times of the year to vary depletion and accumulation of root CHOThe New Zealand Institute for Plant & Food Research LimitedQuantifying root system size – the slow way………..The New Zealand Institute for Plant & Food Research LimitedQuantifying root system size – mechanisation!The New Zealand Institute for Plant & Food Research LimitedExcavated storage root systemThe New Zealand Institute for Plant & Food Research LimitedThe New Zealand Institute for Plant & Food Research LimitedPrinciples of Aspire» Root system is the ‘fuel tank’ that drives asparagus performance» Size of the system is the tank’s total capacity» CHO content tells how full the tank is» Knowing the amount of fuel in the tank allows bettermanagement decisions» Tank size more difficult to quantifyThe New Zealand Institute for Plant & Food Research LimitedAspireNZ decision support systemThe New Zealand Institute for Plant & Food Research LimitedMethod for measuring root CHO content1 2 34 5 6The New Zealand Institute for Plant & Food Research LimitedMain uses of the Aspire system» Knowing how much CHO reserves are available at the start of the harvest season» When to stop (or continue) harvesting» Monitoring fern efficiency and healthThe New Zealand Institute for Plant & Food Research LimitedAspire Asparagus Lite arrivesThe New Zealand Institute for Plant & Food Research LimitedAspireNZ decision support systemThe New Zealand Institute for Plant & Food Research LimitedSelector for Help and LicenceMove to next numberTo choose Plant stageThe New Zealand Institute for Plant & Food Research LimitedThe New Zealand Institute for Plant & Food Research LimitedThe New Zealand Institute for Plant & Food Research LimitedApp installs

Updated asparagus root carbohydrate monitoring system – Aspire Lite phone app

https://zenodo.org/record/8378373/files/NZAC%20conference%20August%202016.pdf

Updated asparagus root carbohydrate monitoring system – Aspire Lite phone app

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