Bright - colored disbud chrysanthemums are sometimes sore to flower burn . Kamuro Flowers tried out various software to protect the flowers against extravagant radiation . ‘ It is impossible to foretell which chrysanthemum diverseness is vulnerable to excessive sunlight . There is a green variety that is known to be highly tender . But we have another green variety that is far less sensitive , ’ tell Arthur van Zeijl .
Together with two of his brothers , he owns Kamuro Flowers in the town of Hoek van Holland . They speciate in disbud chrysanthemums , a unmarried large peak on a unanimous radical . These special chrysanthemums are grown by get rid of the side shoots .
They then deal these single flowers through the Zentoo growers association . ‘ Especially the coloured mixed bag – yellow , pinkish , flushed , unripe – are tender . When you do not apply any coating to the greenhouse , the prime know problems with evaporation . The prime color fades , or they even sting , and the ray floweret deform brown , ’ he read .
ProtectionThis is why Kamuro Flowers has been using some form of coat for eld . ‘ We originally started off with ReduSol . That did eliminate direct irradiation , but it was not satisfactory . It always is a bit of search : there are chrysanthemum potpourri that are able to handle radiation therapy very well . There also are sensitive variety that involve to be really well protect . ’
This is why they switched to ReduHeat , a coating that blocks heat radiation while it lets through a big part of the growing spark ( PAR ) . ‘ This was much better for the flowers . However , while it impede the heat , we still misplace some growth .
Redifuse IRBased on the experience of colleagues and the advice of their harvest consultant , they test out ReduFuse IR . They now have three years of experience with this product . ‘ The coating trim back the heat radiation syndrome and imbue the light . There are no longer any spots with unmediated irradiation , which creates skillful and even conditions . It is overnice and even for the crop , and it is also more pleasant for everyone involved . You no longer feel the heat when you are turn inside the glasshouse , ’ he says .
Van Zeijl no longer needs to screen the crops as often under this finish , although the sieve is still needed . ‘ When radiation reaches 600W , you have to do something when the vents are wide candid . If you do not use the screen , the plants are break to direct sunlight through the overt window . On the other hand , with ReduFuse IR , you’re able to keep the windowpane closed longer so that the CO2 and moisture are maintain inside much well . That results in supererogatory craw growth . ’Van Zeijl is very positively charged about this coating : ‘ There has been much less sunburn in late old age . While we may never reach 100 % , we are well on our style . ’
Dismal SummersThe summer of 2021 was rather sombre and showery . Did he regret receive this finishing during this sentence ? ‘ No , not at all . There also were hebdomad with quick atmospheric condition and high radiation levels . This induce the blossom buds to become very red-hot . This represent a high risk . It cut off bud developing , which results in abnormality in the flower later on . It does n’t really weigh whether it is 25 ° ampere-second or 30 ° C outdoors ; the bud just catch too hot . ReduFuse IR is indemnity against these type of condition . It just ensue in more undifferentiated growth , ’ he say . ‘Moreover , we are turn up on sandy soil here . Too much radiation in the summer can dry out the top layer . ReduFuse IR provides good auspices for this as well . ’
Would it be a good idea to stop growing the most vulnerable kind and bet for alternatives that are more resistive ? ‘ Yes , we are thinking about this . But even then , I would keep using ReduFuse IR , albeit perhaps a thin stratum . It supply assurance , is better for the interior mood , and it provides for a more pleasant employment surround . ’
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