EFFICACY OF TIMING AND NUMBER OF POLLINATING OVERLAPPING WITH SUPER DOCSON ON CUCUMBER SEED PRODUCTION OF F1 HYBRID SEEDS FOR GREENHOUSE

This study was carried out in non-warmed greenhouse during the spring season 2020. Two local cucumber races were cross pollinated. One of the cucumber race was modified as male flowers that used to pollinate the cross pollination. Four pollination timing performed with three replication for each, 1st pollination at 6:00 am, 2nd at 16:00 pm, 3rd at 6:00 am and 16:00 pm, 4th at 16:00 pm and 6:00 am, along with Super Docson treatment 0, 1.5 and 2.5 ml/L. Matured cucumber fruits were collected, and then the seeds were extracted. The statistical analysis of the results shows that both the pollination time and the Super Docson significantly affected the plant growth properties. The pollination at 6:00 am and 16:00 pm has significantly increase the plumule and root along with stem diameter for seedlings at 6.522 cm, 7.001 cm and 2.420 mm respectively. Super Docson treatment show improving in vegetation growth properties at the concentration of 2.5 ml/L to be 6.0623 cm, 7.044 cm and 2.503 mm respectively. In addition, the average weight and seed number of the 100 seeds extracted from the fruits pollinated at 6:00 am and 16:00 pm and treated with Super Docson 2.5 ml/L were found to be 132.556 and 121.0 seed/fruit and 3.332 and 3.395 g/100seed respectively.