scholarly journals Correlation and Path Analysis in Commercial Tenera Oil Palms Collected from Southern Thailand

2021 ◽  
Author(s):  
Pilalak Popet ◽  
Theera Eksomtramage ◽  
Jakarat Anothai ◽  
Thanet Khomphet
Keyword(s):  
Path Analysis ◽  
Oil Palm ◽  
Dry Weight ◽  
Fresh Fruit ◽  
Oil Yield ◽  
Phenotypic Correlation ◽  
Fresh Fruit Bunch ◽  
Southern Thailand ◽  
Oil Palms ◽  
Correlation And Path Analysis

Background: Tenera oil palm is widely planted as a commercial plantation crop throughout Southern Thailand. The purpose of this study was to evaluate the phenotypic correlation and the direct and indirect effects among bunch yields and vegetative characteristics in commercial tenera oil palms. Methods: The oil yield, fresh fruit bunch, bunch number, average bunch weight, leaf area, leaf dry weight and rachis length were recorded from six commercial tenera oil palm progenies. The data were recorded between January 2019 and June 2020 at The Chaipattana Foundation’s oil palm plantation in Trang Province, Thailand. Result: Results show that fresh fruit bunch, average bunch weight and rachis length positively correlated with oil yield (rp = 0.90**, 0.50* and 0.53, respectively), while bunch number and rachis length positively correlated with fresh fruit bunch (rp = 0.58* and 0.47*, respectively). The path analysis shows that bunch number significantly correlated with fresh fruit bunch (0.58*) and strongly directly affected it (1.11). The fresh fruit bunch significantly correlated with oil yield, (0.90**) and had a strong direct (2.08) and indirect effect (1.20). These results indicate that bunch number and fresh fruit bunch are useful variables for oil yield improvement in further breeding programs of oil palm.

scholarly journals Genetic diversity and selection within natural dura oil palm accessions collected in Ghana for oil palm productivity improvement

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Dickson Osei Darkwah ◽  
Essie Blay ◽  
Harry Amoatey ◽  
Enoch Sapey ◽  
Claude Bakoume ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Leaf Area ◽  
Oil Palm ◽  
Dry Weight ◽  
Fruit Weight ◽  
Fresh Fruit ◽  
Productivity Improvement ◽  
Fresh Fruit Bunch ◽  
Area Index ◽  
Research Institute

Abstract. Darkwah DO, Blay E, Amoatey H, Sapey E, Bakoume C, Agyei-Dwarko D. 2020. Genetic diversity and selection within natural dura oil palm accessions collected in Ghana for oil palm productivity improvement. Biodiversitas 21: 3534-3538. The genetic base of oil palm breeding stock of the Ghanaian Oil Palm Research Institute is considered narrow after two selection cycles. Therefore, 79 accessions of natural dura oil palm collected in Ghana and conserved at Oil Palm Research Institute (OPRI) were field evaluated for 18 agro-morphological traits. ANOVA revealed differences among the 79 dura oil palm accessions for 14 traits. The most heritable traits were single fruit weight (h2 = 0.85), leaf area index (h2 = 0.63), bunch weight (h2 = 0.52), total leaf area (h2 = 0.51), and fresh fruit bunch (h2 = 0.46). Genetic coefficients of variation ranged from 3.30% for frond dry weight to 68.74% for total bunch weight denoting possibility of selection of desirable traits for improvement. Five high fresh fruit bunch yielding accessions (FFB ≥ 10.81 t/ha) with good heritable bunch characteristics were selected for introduction in the breeding stocks. In fact, their bunch number, average bunch weight, and mesocarp to fruit were higher, in absolute terms, than the controls and trial mean obtained in the study. Although, the height increment was close to those of the controls, short progenies are expected among descendants from their selfings or crosses.

Distribution map of oil palm fresh fruit bunch using LiDAR*

2021 ◽  
Author(s):  
Husna Sarirah Husin ◽  
Nurnasuha Amar ◽  
Aznida Abu Bakar Sajak ◽  
Mohd Sallehin Mohd Kassim
Keyword(s):  
Oil Palm ◽  
Fresh Fruit ◽  
Distribution Map ◽  
Fresh Fruit Bunch

scholarly journals Correlation and path analysis of yield and its components and plant traits in wheat

2004 ◽  
Vol 34 (6) ◽  
pp. 1701-1708 ◽  
Author(s):  
Lauro Akio Okuyama ◽  
Luiz Carlos Federizzi ◽  
José Fernandes Barbosa Neto
Keyword(s):  
Grain Yield ◽  
Path Analysis ◽  
Plant Traits ◽  
Flag Leaf ◽  
Phenotypic Correlation ◽  
Path Coefficient ◽  
Above Ground Biomass ◽  
Ground Biomass ◽  
Correlation And Path Analysis ◽  
Positive Direct

This study was aimed to characterize yield components and plant traits related to grain yield. Correlation and path analysis were carried out in wheat genotypes grown under irrigated and non-irrigated field conditions. In the path coefficient analysis, grain yield represented the dependent variable and the number of spikes m-2, number of grains spike-1, kernel weight, days to anthesis, above-ground biomass m-2 and plant height were the independent ones. In both years, periods without rain occurred from early milk to grain ripening and from flag leaf sheath opening to grain ripening for first and second sowing dates, respectively. Character associations were similar in both water regimes. Grain yield showed positive phenotypic correlation with above-ground biomass, number of spikes m-2 and number of grains per spike. Path analysis revealed positive direct effect and moderate correlation of number of spike m-2 and number of grains per spike with grain yield. These results indicated that the number of spikes m-2 and the number of grains per spike followed by the above-ground biomass were the traits related to higher grain yield, under irrigated and late season water stress conditions.

scholarly journals Non-Destructive Oil Palm Fresh Fruit Bunch (FFB) Grading Technique Using Optical Sensor

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Sebastian Liban Utom ◽  
◽  
Elmy Johana Mohamad ◽  
Hanis Liyana Mohmad Ameran ◽  
Herdawatie Abdul Kadir ◽  
...  
Keyword(s):  
Optical Sensor ◽  
Oil Palm ◽  
Fresh Fruit ◽  
Fresh Fruit Bunch ◽  
Non Destructive

Correlation and Path analysis for yield components in Dura oil palm germplasm

2018 ◽  
Vol 112 ◽  
pp. 724-733 ◽  
Author(s):  
Sara de Almeida Rios ◽  
Raimundo Nonato Vieira da Cunha ◽  
Ricardo Lopes ◽  
Edson Barcelos ◽  
Raimundo Nonato Carvalho da Rocha ◽  
...  
Keyword(s):  
Path Analysis ◽  
Oil Palm ◽  
Yield Components ◽  
Correlation And Path Analysis

scholarly journals Design and development of a motor operated oil palm crusher for smallholder growers in Bangladesh

2019 ◽  
Vol 30 (1) ◽  
pp. 141-149
Author(s):  
MA Awal ◽  
SS Tabriz
Keyword(s):  
Palm Oil ◽  
Oil Recovery ◽  
Electric Motor ◽  
Oil Palm ◽  
Recovery Rate ◽  
Fresh Fruit ◽  
Design Parameters ◽  
Crude Palm Oil ◽  
Fresh Fruit Bunch ◽  
Rotating Speed

At present oil palm growers are facing problem to extract crude palm oil in Bangladesh. Processing of palm oil categorized into various forms but basic processing stages are essentially the same including harvesting, sterilization, bunch stripping, digestion, crushing, clarification and drying. Extracting of palm oil is very difficult by traditional method and oil recovery rate is very low. Although mechanical processing is costly but produces good quality Crude Palm Oil (CPO) and oil recovery rate is high. An electric motor operated oil palm crusher was designed and developed and tested in laboratory under the Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh for processing of crude palm oil from fresh fruit bunch. The crusher was designed by using Auto-Cad software. It was fabricated according to design parameters. The major parts of the crusher were screw shaft, cylinder, hopper, hollow bars, pressure case cap, jamnut and frame which were fabricated by mild steel (MS), ball bearing, gear and pinion, line and idle shaft and spring were fabricated by carbon steel (CS) whereas driver and driven pulley were fabricated by cast iron(CI). Crusher was mounted on the frame. A 9 hp electric motor was used as a power source. Crusher was tested after fabrication and 3000 gm fresh fruits were used. About 700 gm crude palm oil, 800 gm oil cake, 1400 gm skum were collected from 2700 gm pretreated fruits. The crushing capacity and crude oil percentage of the crusher was 6.49 kg/hr and 25.93%, respectively. Rotating speed of screw was 40 rpm for smooth running. The weight of crusher was only 70 kg which is easy to operate by single person. The developed oil palm crusher may fulfill the demand of smallholder growers to extract oil from fresh fruit bunches. Progressive Agriculture 30 (1): 141-149, 2019

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