Abstract
Low tunnel protected cultivation of organically grown strawberry (winter dawn) was carried out to standardize the cladding material and the height of structure for enhancing the yield and post-harvest quality in Punjab North India. Three different design of low tunnels i.e. three different heights; 45 cm, 60 cm and 75 cm and three claddings; thin plastic film (50 microns), UV stabilised plastic sheet (200 microns) and non-woven film (20 GSM) were used in the trials. Microclimate parameters, soil moisture and soil temperature inside the installed structures were analyzed throughout the experiments. The maximum yield of crop, number of fruits (45), maximum weight (28g) was observed in the tunnel of size 45 cm with non-woven 20 GSM followed by UV 200 micron of 60 cm height and minimum values were observed in other structures and open. All the tunnels maintained favourable soil and canopy temperature for the growth of crop and it was observed that crop grown inside tunnels were protected from any kind of frost injury and exhibited better post-harvest quality than the strawberry grown in open.
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