Evaluation of New Popcorn Hybrids Under Two Plant Densities | ||||
| Journal of Plant Production | ||||
| Article 7, Volume 12, Issue 8, August 2021, Page 881-885 PDF (789.13 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2021.198685 | ||||
 View on SCiNiTO | ||||
| Author | ||||
I. A. I. El-Gazzar 
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| Maize Research Department, FCRI, ARC, Egypt | ||||
| Abstract | ||||
| Seven popcorn inbred lines were crossed in a half-diallel mating design in2019season. The resulting 21 F1 hybrids were evaluated in 2020 season in a split plot design with three replications.Two plant densities (D) of 25000 and 31000 plant/feddan were arranged in the main plots and 21 popcorn hybrids were arranged in the sub plots.Data were recorded on days to50% silking, plant height, grain yield, No.of kernels/10g, popping volume, unpopped kernels% and ear diameter. The results showed that plant height,grain yield and unpopped kernels% were affected by plant density. The higher plant density produced taller plants , higher grain yield/ fed and low unpopped kernels% than those under low plant density.Significant variability among popcorn hybrids were detected for all traits. While the interaction between hybrid × plant density was not significant for all studied traits. Two popcorn hybrids(Sk4016×Hp6215)and (ZPB2×Hp6208) had high grain yield/fed and high popping volume. The additive gene effects were more important than non-additive genes effects for the inheritance of number of kernels/10g, popping volume and ear diameter. While, the non-additive gene effects were more important than additive genes in the inheritance of days to50% silking, plant height, grain yield/fed and unpopped kernels%. The desirable inbred lines for general combining ability effects were Hp6208 for earliness, plant height, grain yield/fed, unpopped kernels% and ear diameter, ZPB2 for earliness, number of kernels/10g, popping volume and unpopped kernels%and Hp6215 for earliness, grain yield and number of kernels/10g.The two hybrids (Sk4016×Hp6215andSk6013×Sk6014)exhibited desirable specific combining ability effects for grain yield and poppingvolume,respectively. | ||||
| Keywords | ||||
| Diallel cross; Additive gene effects; Non-additive gene effects; Popcorn; Popping volume | ||||
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