One of the principles of zip friendly glasshouse cultivation , is the ( scarce ) lighter being optimally converted into assimilates , preferentially in the intersection to be harvested . The only way available now to determine whether food and assimilates are in the ' right place ' , is by taking folio samples and having those analyzed in a science lab . This undertaking is about a measuring method based on hyper - spectral television camera measuring Christ Within in the reach of 400 to 1700 nm . Possibly , this enables wireless monitoring of the status of the crops , and based on this info the greenhouse climate can be controlled ( dosing CO2 , lighting on or off ) or other growth standard ( removing leaves , pruning ) can be take .
Destructive measurements in tomatoFor this enquiry , use was made of an existing tomato growth with five diverseness . intervention have been introduced to make indisputable the sugar levels and dry nub percentages in yield and leaf are different , and to make differences in the nutrient content in the leaves . These leaves were then subject to measurements with hyper - apparitional television camera . The leaves and fruit were then used for destructive mensuration of sugar , starch , nutrient , percentage in wry substance , and chlorophyll content in different science lab . For every leaf and fruit , the spectral images and the research lab measurements were coalesce , and it was determined to what arcdegree the images gave a good correlational statistics with the various content means .
Good correlationThe results show that the hyper - ghostlike ikon correlate well with the sugar content in the leave . There are also good coefficient of correlation with the dry substance content and the pigment content ( chlorophyll and carotids ) in the leafage . There was a fair correlation coefficient between the images and amylum content , sum of nitrogen , and atomic number 20 . The contentedness of a telephone number of other nutrient turned out not to be predictable with the hyper - ghostlike camera . All these resultant role show that hyper - spectral camera are very utilitarian in the greenhouse horticulture to determine the condition and lineament of fruit during the emergence , without damaging the crop . The next stair would be to watch whether hyper - phantasmal cameras can also be used in the steady increase to determine the content of substances , in such a way that the grower can use the information to hold in the craw growth .
This inquiry is finance by Kas als Energiebron , the innovation and action curriculum of the ministry of Agriculture , Nature , and Food timbre , and LTO Glaskracht Nederland .
cluck here for the complete research study ( Dutch ) .
Source : Kas als Energiebron
