Modelling Fresh Fruit Bunch Yield Stability in Oil Palm using Different Stability Statistics

Okoye, M. N.; Okwuagwu, C. O.; Uguru, M. I.; Ataga, C. D.; Baiyeri, K. P.

doi:10.3923/ijpbg.2011.379.387

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…An earlier study about 38 oil palm cultivars in four locations in Malaysia analyzed genotype yield stability by environment (Rafii et al 2012), finding that seven genotypes were stable and had consistent performance over the environments based on yield standard deviation and CV values, with CV% of 31.1% to 41.1% for the 38 cultivars. An earlier research (Okoye et al 2011) compared 15 oil palm genotypes in Nigeria to test yield stability across four environments, applying various statistical methods for assessing stability, including total deviation from a yield regression line, with CV varying between 25% and 45%. Significant interaction was found between genotypes and environments, suggesting specific adaptation, but different measures of stability indicated slightly different assessment of genotypes.…”

Section: Discussionmentioning

confidence: 99%

Technological Advancements and the Changing Face of Crop Yield Stability in Asia

Hollósy,

Ma’ruf,

Bacsi

2023

Economies

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Recent technological advancements have revolutionized agriculture in Asia, leading to significant changes in crop yield stability. This study examines the changing face of crop yield stability in Asia resulting from the increasing adoption of innovative technologies in agriculture. Through a review of current research and case studies, the impact of technology-driven changes on yield levels, variability, and predictability is explored. The study applies a yield stability index (YSI) to evaluate the yield stability of six crops in seven Asian countries during two periods (1961–1994 and 1995–2020), comparing the countries, crops, and stability changes between the two segments. The novelty of the research is the application of YSI, which, contrary to usual stability metrics, can distinguish between rare large extreme yields and frequent minor fluctuations, and based on this feature, evaluates the suitability of the prevailing technologies to local environmental conditions. The YSI is used to evaluate the stability of technologies, indicating whether the technologies can respond well to the annual variations of environmental conditions. Positive YSI values indicate stable technologies that can respond well to the annual variations of environmental conditions, and the concept of a well-technologized crop is used for crops in countries with stable positive YSI values, indicating the suitability of the actual crop to the actual geographical environment. These results can guide production technology developments and the introduction or abandonment of certain crops in certain geographical zones, especially regarding the implications of climate change and global warming. This study highlights the transformative power of technology in improving crop yield stability and food security in Asia, while discussing the potential challenges associated with these changes and the need for continued research to address them.

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Section: Discussionmentioning

confidence: 99%

Technological Advancements and the Changing Face of Crop Yield Stability in Asia

Hollósy,

Ma’ruf,

Bacsi

2023

Economies

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“…Oil palm begins to bear fruit at the age of 3 to 4 years, and in the 8 to 11 years of age it can produce 20 ton/ha of fresh fruit bunches (FFB) annually (Dianto et al, 2017). Ripe palm fruit has the potential to produce higher oil yields (Islamiah et al, 2021;Okoye et al, 2009;Sitio et al, 2022;Sujudi et al, 2016). Ripe fruit is characterized by the occurrence of loose fruits from its bunch (Hasibuan, 2020;Lai et al, 2023;Purba, 2017) and changes in color (Fitrya et al, 2018;Herman et al, 2020;Ibrahim et al, 2018;Makky & Soni, 2014;Sari et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Optimal Harvesting Time of Oil Palm Fruit

Akbar

Wibowo

Santoso

2023

JTEP-L

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The selection of the right timing for the harvest of oil palm fresh fruit bunch (FFB) can affect the outcome of the palm fruit quality, which can further imply the quality of crude palm oil (CPO). Truly ripen fruits can boost the yield and quality of crude palm oil. The determination of fruit ripeness is done with an approach to estimating the time of the harvest cycle and the approximate number of palm oil fruits that are detached from their bunches (loose-fruit). The study aimed to investigate the exact harvesting time with variations in the number of palm oil fruits that loose at each additional day after the occurrence of one or two fruitlets detach. The parameters used to test the quality of palm oil fruit harvested were the level of free fatty acids (FFA) and the yield of crude palm oil. The variation used was based on two factors: the number of days after the discovery of the fruit loose released from its bunch and the planting plant. The results of Analysis of Variance (ANOVA) and Duncan Multiple Range Test (DMRT) showed that the quality of oil palm fruit corresponded to the percentage of the number of palm oil fruits detached from their bunch and the age of the plant. Based on the results obtained, the optimal harvest time can be carried out until the sixth day after the first time of detached fruits for all planting ages. Keywords: Crude palm oil, Free fatty acid, Analysis of variance test, Fruit loose, Plant age

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Bunch and Nut Production of Surviving Coconut Palms in Lethal Yellowing Disease Endemic Area of Nigeria

Odewale¹,

Okoye²,

Odiowaya³

et al. 2012

International J. of Plant Breeding and Genetics

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Modelling Fresh Fruit Bunch Yield Stability in Oil Palm using Different Stability Statistics

Cited by 3 publications

References 8 publications

Technological Advancements and the Changing Face of Crop Yield Stability in Asia

Technological Advancements and the Changing Face of Crop Yield Stability in Asia

Investigation on the Optimal Harvesting Time of Oil Palm Fruit

Bunch and Nut Production of Surviving Coconut Palms in Lethal Yellowing Disease Endemic Area of Nigeria

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