Variability of yield and kernel quality parameters of popcorn hybrids (Zea mays L. everta)
2011
Srdić, J., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia) | Pajić, Z., Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia)
The experiment with 12 popcorn hybrids was set up according to the RCB design in three replicates. Examined traits were: grain yield (GY), popping volume (PV) and number of kernels per 10g (NK). ANOVA showed statistical differences among examined genotypes according to all three traits. Grain yield of the hybrids varied from 3.36 t/ha (ZPSK 645/1k) up to 6.07 t/ha (ZPSK 611k). The lowest popping volume had hybrid ZPSK 501k (27.33 cubic cm/g), which is considered unsatisfactory, while five hybrids had good popping volume over 38.00 cubic cm/g. Negative correlation was determined between GY and PV (-0.52), which although wasn’t significant indicated that higher yielding hybrids often have lower popping volumes. Significant correlation was between GY and NK (-0.70*), and between NK and PV (0.66*). These results point out to the fact that breeding of popcorn is very complex process, for there is necessity of producing high yielding and good popping quality hybrids, which is mostly contradictory.
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