Effect of Different Male Parents and Male Flower Numbers on Seed Yield and Quality of Triploid Watermelon Breeding

  • Pınar Adıgüzel
  • Nebahat Sarı
Keywords: Tetraploid, diploid, watermelon, fruit seed


In this study, the effects of different male parents and male flower number used for pollination of female flower
were investigated for fruit and seed yield and quality in triploid watermelon. As plant material, tetraploid ST101
and ST82 were used as female parents; diploid WL92, WL124, WL134, WL216, WL259-B and WL235 were used
as male parents. Plant length, main stem diameter, number of nodes on main stem parameters were investigated.
Tetraploid female parents were pollinated with 1, 2 and 3 male flowers (mf) of diploid male parents and fruit
setting values were determined. Seed yield, 1000 seeds weight, full and abortive seed numbers, embryo/seed ratio
and seed germination rates were investigated. According to research results; plant length, number of nodes, stem
diameter were highest in found WL92 (260.56 cm, 32.83 nodes and 8.52 mm, respectively); highest fruit setting
ratio, fruit yield, weight, height, diameter and rind thickness were found in ST82 x WL259-B hybrid (63.10 %,
7.62 kg, 2856.67 g, 16.70 cm, 17.61 cm and 1.97 mm respectively). TSS was found to be the highest (8.99 %) in
ST101 x WL92 hybrid, while highest seed yield and germination rate were determined in ST82 x WL216 cross
(2.12 g/fruit, 45.56 % respectively); 1000 seed weight, abortive and full seed number, embryo/seed ratio, were
superior in ST82 x WL134 cross (55.12 g, 40.33 seed/fruit, 143.50 seed/fruit, 43.70 % respectively). Increase of
male flower had positive effects on fruit yield (2mf, 3mf), weight (2mf, 3mf), height (3mf) and diameter (2mf,