A field experiment was conducted for 4 seasons on the farm of the Dept. of Field Crop Sci., Coll. of Agric., Univ. of Baghdad in spring and fall plantings in 2014 and 2015. That was to determine the relationship of hybrid performance in maize (Zea mays L.) crosses with early and late selects of inbreds. Four inbreds; Zm19, Zm32, Zm51, and Zm61 were grown and the very early and very late silking plants were selected and selfed for propagation in the first two seasons. The third season involved growing the selects and top-crossing with early and late inbreds (Zm60 and Zm21). The sixteen crosses were planted in season 4 in RCBD of 3 replicates in population density of 83’000 plants. ha-1. The cross (Zm19xZm60) resulted from early select of Zm19 gave significantly higher grain yield (10.52 t. ha-1) compared to its late counterpart (8.19 t. ha-1). The same cross gave higher grain yield than late Zm19 crossed to late inbred (Zm21) (6.64 t. ha-1). Early selects on inbreds crossed to testers showed significant differences in kernel growth rate (KGR), kernel filling duration (KFD) and kernel weight. Values of KGR ranged between 3.2 - 3.5 g. plant-1. d-1, KFD between 35 – 38 d, and kernel weight between 228 – 294 mg. kernel-1. It was concluded that selection on maize inbred populations creates new variations in traits lead to higher grain yield hybrids. Other traits such as ear length, kernel. ear-1, and kernel weight could be good candidates for selection on inbreds that could help developing new high grain yield hybrids.
| Published in | International Journal of Applied Agricultural Sciences (Volume 3, Issue 3) |
| DOI | 10.11648/j.ijaas.20170303.13 |
| Page(s) | 72-77 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Days of Kernel Filling, Epigenetic, Grain Yield, Kernel Growth Rate, QTL, Selection on Inbreds
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APA Style
H. A. Alkhazaali, M. M. Elsahookie, F. Y. Baktash. (2017). Flowering Syndrome-Hybrid Performance Relationship in Maize 2- Grain Yield and Yield Components. International Journal of Applied Agricultural Sciences, 3(3), 72-77. https://doi.org/10.11648/j.ijaas.20170303.13
ACS Style
H. A. Alkhazaali; M. M. Elsahookie; F. Y. Baktash. Flowering Syndrome-Hybrid Performance Relationship in Maize 2- Grain Yield and Yield Components. Int. J. Appl. Agric. Sci. 2017, 3(3), 72-77. doi: 10.11648/j.ijaas.20170303.13
AMA Style
H. A. Alkhazaali, M. M. Elsahookie, F. Y. Baktash. Flowering Syndrome-Hybrid Performance Relationship in Maize 2- Grain Yield and Yield Components. Int J Appl Agric Sci. 2017;3(3):72-77. doi: 10.11648/j.ijaas.20170303.13
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Download@article{10.11648/j.ijaas.20170303.13,
author = {H. A. Alkhazaali and M. M. Elsahookie and F. Y. Baktash},
title = {Flowering Syndrome-Hybrid Performance Relationship in Maize 2- Grain Yield and Yield Components},
journal = {International Journal of Applied Agricultural Sciences},
volume = {3},
number = {3},
pages = {72-77},
doi = {10.11648/j.ijaas.20170303.13},
url = {https://doi.org/10.11648/j.ijaas.20170303.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijaas.20170303.13},
abstract = {A field experiment was conducted for 4 seasons on the farm of the Dept. of Field Crop Sci., Coll. of Agric., Univ. of Baghdad in spring and fall plantings in 2014 and 2015. That was to determine the relationship of hybrid performance in maize (Zea mays L.) crosses with early and late selects of inbreds. Four inbreds; Zm19, Zm32, Zm51, and Zm61 were grown and the very early and very late silking plants were selected and selfed for propagation in the first two seasons. The third season involved growing the selects and top-crossing with early and late inbreds (Zm60 and Zm21). The sixteen crosses were planted in season 4 in RCBD of 3 replicates in population density of 83’000 plants. ha-1. The cross (Zm19xZm60) resulted from early select of Zm19 gave significantly higher grain yield (10.52 t. ha-1) compared to its late counterpart (8.19 t. ha-1). The same cross gave higher grain yield than late Zm19 crossed to late inbred (Zm21) (6.64 t. ha-1). Early selects on inbreds crossed to testers showed significant differences in kernel growth rate (KGR), kernel filling duration (KFD) and kernel weight. Values of KGR ranged between 3.2 - 3.5 g. plant-1. d-1, KFD between 35 – 38 d, and kernel weight between 228 – 294 mg. kernel-1. It was concluded that selection on maize inbred populations creates new variations in traits lead to higher grain yield hybrids. Other traits such as ear length, kernel. ear-1, and kernel weight could be good candidates for selection on inbreds that could help developing new high grain yield hybrids.},
year = {2017}
}
TY - JOUR T1 - Flowering Syndrome-Hybrid Performance Relationship in Maize 2- Grain Yield and Yield Components AU - H. A. Alkhazaali AU - M. M. Elsahookie AU - F. Y. Baktash Y1 - 2017/04/26 PY - 2017 N1 - https://doi.org/10.11648/j.ijaas.20170303.13 DO - 10.11648/j.ijaas.20170303.13 T2 - International Journal of Applied Agricultural Sciences JF - International Journal of Applied Agricultural Sciences JO - International Journal of Applied Agricultural Sciences SP - 72 EP - 77 PB - Science Publishing Group SN - 2469-7885 UR - https://doi.org/10.11648/j.ijaas.20170303.13 AB - A field experiment was conducted for 4 seasons on the farm of the Dept. of Field Crop Sci., Coll. of Agric., Univ. of Baghdad in spring and fall plantings in 2014 and 2015. That was to determine the relationship of hybrid performance in maize (Zea mays L.) crosses with early and late selects of inbreds. Four inbreds; Zm19, Zm32, Zm51, and Zm61 were grown and the very early and very late silking plants were selected and selfed for propagation in the first two seasons. The third season involved growing the selects and top-crossing with early and late inbreds (Zm60 and Zm21). The sixteen crosses were planted in season 4 in RCBD of 3 replicates in population density of 83’000 plants. ha-1. The cross (Zm19xZm60) resulted from early select of Zm19 gave significantly higher grain yield (10.52 t. ha-1) compared to its late counterpart (8.19 t. ha-1). The same cross gave higher grain yield than late Zm19 crossed to late inbred (Zm21) (6.64 t. ha-1). Early selects on inbreds crossed to testers showed significant differences in kernel growth rate (KGR), kernel filling duration (KFD) and kernel weight. Values of KGR ranged between 3.2 - 3.5 g. plant-1. d-1, KFD between 35 – 38 d, and kernel weight between 228 – 294 mg. kernel-1. It was concluded that selection on maize inbred populations creates new variations in traits lead to higher grain yield hybrids. Other traits such as ear length, kernel. ear-1, and kernel weight could be good candidates for selection on inbreds that could help developing new high grain yield hybrids. VL - 3 IS - 3 ER -
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