The hot summers of late years lay out a pregnant challenge for rose agriculturalist . The red varieties especially are sensitive to rut . Rozen Scheers has tried out various strategies .
In principle , the rose is a light - lie with crop . Rozen Scheers in Kontich , Belgium was among the first grow cultivator to adopt hybrid absorption unhorse to help increase output through high light story . This is especially relevant in autumn , wintertime , and spring . In the summer , however , the gamy born light becomes a challenge . ‘ Of the eleven varieties of rosiness we grow , we see burning and bluish discolouration on the buds of the red varieties in special when there is too much actinotherapy . This is because they ignite up much faster than ashen varieties . We do not have any problems with the white varieties , ’ articulate proprietor Wim Scheers . In addition , higher temperatures result in shorter stem .
EvaporationIn his search for the best strategy , he initially used ReduSol for three years . This coat shields a portion of the solar irradiation . ‘ However , the greenhouse last out too dark under ReduSol . As a termination , the crop ’s vaporisation was insufficient . This is why we switched to ReduFuse IR over the preceding two years , ’ he says . This diffuse , heat - reflecting coating is apply to the glasshouse cap by contractor De Ceuster .
‘ The plant grows better under ReduFuse IR and there are no burn - related problems . ReduFuse IR also reflects part of the PAR light , but that ’s not an issue . In the summertime , to slack down ontogeny and production somewhat are a near affair , because everything in Belgium comes to a standstill in August . Sales then slump and rose prices throw significantly , ’ says Scheers .
HeatwavesThe frequent heatwaves we ’ve seen in late years are forcing us to make other choices . ‘ The weather is becoming more difficult to predict . To be prepared for utmost situations we have acquired a misting organisation to be able to cool the crop . There is really no other path to effectively counter the force of 25 ° C night temperatures . Today , there are rose grower who have installed a cooling system , but that is a major investment , ’ he says .
He has not yet really found the perfect organisation . ‘ Because we grow multiple multifariousness , we have to look for a ” felicitous medium ” resolution that works for all varieties . In recent year we used 18 pail of ReduFuse IR per hectare . Due to the heatwaves , we are more inclined to move towards 20 buckets per hectare . Due to the changeable weather , it is unmanageable to do the good thing for all varieties at the same time . ’
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