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Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais

In breeding, progeny and individual palm selection are the most suitable approach for improvement of secondary traits in oil palm because their phenotypic expression strongly influenced by environment factors. Thus, progeny selection approach applied in this study for the selection of high fresh fru...

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Main Author: Mohd Rais, Siti Khadijah
Format: Thesis
Language:English
Published: 2022
Subjects:
Palm oil
Online Access:https://ir.uitm.edu.my/id/eprint/75757/1/75757.pdf
https://ir.uitm.edu.my/id/eprint/75757/
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spelling my.uitm.ir.757572023-03-31T01:54:07Z https://ir.uitm.edu.my/id/eprint/75757/ Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais Mohd Rais, Siti Khadijah Palm oil In breeding, progeny and individual palm selection are the most suitable approach for improvement of secondary traits in oil palm because their phenotypic expression strongly influenced by environment factors. Thus, progeny selection approach applied in this study for the selection of high fresh fruit bunch (FFB) and oil yield in short height progenies. The most crucial operation in oil palm plantation is harvesting the fresh fruit bunches. Tall palms difficult to harvest either to unavailability of skilled harvester, high cost or longer time needed for bunch harvesting. Shorter palms may help to solve those issues. Crosses between Kulai-Nigerian dura with URT-Calabar pisifera resulted into 8 full-sib DxP progenies with total of 108 palms in the progeny testing. Data were collected for four consecutive years on fresh fruit bunch yield and bunch components while vegetative traits were recorded 3 times at 5,7 and 12 years old. Progenies performance of FFB varied significantly and it ranged from 193.8 kg/p/yr to 254.8 kg/p/yr. Mean progeny of palm height increment was below than 40.8 centimetres per year at age of 12 years old in KD-Nigerian x URT-Calabar population and this result showed that this population have slow height increment. Highest mean progeny of oil to bunch was recorded in KD-Nigerian x URT-Calabar population of 26%. Broad sense heritability (h2B) was found very low (below than 47%) for all yield traits. Inbreeding coefficient values showed that Kulai-Nigerian x URT-Calabar progenies were highly outbreeding. 8 short height progenies produced moderate FFB yield (ranged from 185.7 to 233.3 kg/p/yr), moderate bunch weight (ranged from 9.3 to 11.8 kg/palm) and higher bunch number (ranged from 17 to 23 bunches/palm/year). 2022 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/75757/1/75757.pdf Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais. (2022) Masters thesis, thesis, Universiti Teknologi MARA (UiTM).
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Palm oil
spellingShingle Palm oil
Mohd Rais, Siti Khadijah
Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
description In breeding, progeny and individual palm selection are the most suitable approach for improvement of secondary traits in oil palm because their phenotypic expression strongly influenced by environment factors. Thus, progeny selection approach applied in this study for the selection of high fresh fruit bunch (FFB) and oil yield in short height progenies. The most crucial operation in oil palm plantation is harvesting the fresh fruit bunches. Tall palms difficult to harvest either to unavailability of skilled harvester, high cost or longer time needed for bunch harvesting. Shorter palms may help to solve those issues. Crosses between Kulai-Nigerian dura with URT-Calabar pisifera resulted into 8 full-sib DxP progenies with total of 108 palms in the progeny testing. Data were collected for four consecutive years on fresh fruit bunch yield and bunch components while vegetative traits were recorded 3 times at 5,7 and 12 years old. Progenies performance of FFB varied significantly and it ranged from 193.8 kg/p/yr to 254.8 kg/p/yr. Mean progeny of palm height increment was below than 40.8 centimetres per year at age of 12 years old in KD-Nigerian x URT-Calabar population and this result showed that this population have slow height increment. Highest mean progeny of oil to bunch was recorded in KD-Nigerian x URT-Calabar population of 26%. Broad sense heritability (h2B) was found very low (below than 47%) for all yield traits. Inbreeding coefficient values showed that Kulai-Nigerian x URT-Calabar progenies were highly outbreeding. 8 short height progenies produced moderate FFB yield (ranged from 185.7 to 233.3 kg/p/yr), moderate bunch weight (ranged from 9.3 to 11.8 kg/palm) and higher bunch number (ranged from 17 to 23 bunches/palm/year).
format Thesis
author Mohd Rais, Siti Khadijah
author_facet Mohd Rais, Siti Khadijah
author_sort Mohd Rais, Siti Khadijah
title Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
title_short Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
title_full Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
title_fullStr Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
title_full_unstemmed Genetic variability of Kulai-Nigerian x URT-Calabar oil palm population based on morphological & molecular markers for the development of short height increment DXP progenies / Siti Khadijah Mohd Rais
title_sort genetic variability of kulai-nigerian x urt-calabar oil palm population based on morphological & molecular markers for the development of short height increment dxp progenies / siti khadijah mohd rais
publishDate 2022
url https://ir.uitm.edu.my/id/eprint/75757/1/75757.pdf
https://ir.uitm.edu.my/id/eprint/75757/
_version_ 1762396089672007680
score 13.211869

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