scholarly journals Weed Species Distribution of Juvenile Oil Palm Tree (Elaeis guineensis) Intercropped with Maize (Zea mays), Okra (Abelmoshus esculentus) and Pepper (Capsicum anuum var. abbreviatum)

2014 ◽  
Vol 6 (4) ◽  
pp. 483-490
Author(s):  
Ayodele Samuel OLUWATOBI ◽  
Kehinde Stephen OLORUNMAIYE
Keyword(s):  
Zea Mays ◽  
Species Distribution ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Diversity Index ◽  
Block Design ◽  
Control Plot ◽  
Palm Tree ◽  
Weed Species ◽  
Palm Trees

This field experiment was carried out to evaluate the weed species distribution in the experimental plots of an intercrop of juvenile oil palm trees (Elaeis guineensis Jacq.) with maize (Zea mays Linn.), okra (Abelmoschus esculentus Moench) and pepper (Capsicum annuum var. abbreviatum). This was carried out during the cropping season between July and October 2012. The crops were intercropped with the juvenile oil palm trees of about 3-years-old. The experiment was laid out in a completely randomized block design with five (5) replicates. The treatments comprised of intercropping distances of 1 m, 2 m and 3 m each for the three (3) crops (maize, okra and pepper) and a plot for each of the three (3) arable crops without oil palm trees as control. Weed species distribution was carried out in each of the plots to determine the Simpson’s Diversity Index (D), Simpson’s Index of Diversity (1-D) and Simpson’s Reciprocal Index (1/D). Weed species’ frequency, density, relative density, relative frequency, importance value, abundance, dominance and relative dominance were also computed from data collected at 3WAP and 6WAP. The results showed that the control plot has the highest weed species distribution at 3WAP having the lowest Simpson’s Diversity Index (D) of 0.0930. Okra plot has the least weed species distribution with the highest Simpson’s Diversity Index (D) of 0.2726. At 6WAP, the pepper plot has the highest weed species distribution having the lowest Simpson’s Diversity Index (D) of 0.1741. Control plot has the least weed species distribution with highest Simpson’s Diversity Index (D) of 0.2831.

Enumeration of Plant Species Inhabiting Oil Palm Trees (Elaeis-guineensis) at Zawlpui Plantation Site, Serchhip District, Mizoram

2021 ◽  
Vol 9 (1) ◽  
pp. 32-35
Author(s):  
Lal awmpuia ◽  
◽  
H. Lalruatsanga ◽  
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Vascular Plant ◽  
Fungal Species ◽  
Small Scale ◽  
Palm Tree ◽  
Palm Trees ◽  
Plant Stem

A survey of plant species inhabiting oil palm trees was conducted in Zawlpui area of Serchhip district, Mizoram. The study area is a tropical potent agriculture zone, wherein small-scale business of Elaeis guineensis plantation is carried out by several farmers mainly within the gentle sloppy terrain. Oil palm with a rough bark harbors immense inhabitation by a variety plants, that rooted mostly on the debris at leaf base. Species diversity on the plant stem supposedly encourage insects and termites to establish herewith, thus causing harming to the tree. The sample stands within 400 m–800 m altitude were picked randomly. A total of 50 palm tree were accounted and all associated plants on the stem above 30 cm from the ground are all recorded. Species that cannot be identified on the site were pressed and observed at Botany Research lab, Pachhunga University College. The survey documented 38 vascular plant species which include 4 epiphytes and 1 non-vascular species of lichen, 1 bryophyte and 4 fungal species at that time. Invasive Peperomia pellucida and epiphytic pteridophytes Nephrolepis biserrata was found in most of the stand sample; however, Peperomia population decreases with the increasing elevation. Dynamics of inhabitant species diversity also correlate to location of tree. The study also established that diversity of inhabiting species was comparatively high on parts of the stem facing sunlight.

scholarly journals Myxobiota of the Brazilian Atlantic Forest: species on oil palm tree (Elaeis guineensis, Arecaceae)

Rodriguésia ◽  
2010 ◽  
Vol 61 (4) ◽  
pp. 575-583 ◽  
Author(s):  
Clebson Firmino da Silva ◽  
Laise de Holanda Cavalcanti
Keyword(s):  
Atlantic Forest ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Species Abundance ◽  
Palm Tree ◽  
Forest Fragments ◽  
Brazilian Atlantic Forest ◽  
Forest Species ◽  
Palm Trees ◽  
Ecological Reserve

Abstract Elaeis guineensis Jacq. (Arecaceae), the oil palm tree, serves as a phorophyte for many different groups of organisms, someof whichhelp decompose organic matter comingfromthe organs of the tree itself or fromremainsof other plants retained in leaf sheaths. To study the myxobiota of E. guineensis, we examined living and dead trunks, leaves, bracts and inflorescences in the Gurjaú Ecological Reserve, in the township of Cabo de Santo Agostinho, Pernambuco, Brazil. Incidence and species abundance were determined in three Atlantic forest fragments. The reported species are listed herein, followed the known distribution of each species in Brazil, and which of them occur on palm trees. All of the subclasses and five orders were recorded and 22 species were added to the list of myxomycetes associated with oil palm trees in Brazil. The highest incidence value was recorded on dead leaves. Ceratiomyxa fruticulosa (O. F. Müll.) T. Macbr., Arcyria cinerea (Bull.)Pers. and Physarum compressum Alb.& Schwein. werethe most commonspecies, while Hemitrichia serpula (Scop.) Rostaf. ex Lister showed the highest levels of abundance and incidence, thus confirming its preference for the substrates provided by palm trees.

scholarly journals Weed species composition and diversity of 2-year-old oil palm tree/fruit vegetables intercrop in rainforest zone of Nigeria

2020 ◽  
Author(s):  
Ayodele Samuel Oluwatobi
Keyword(s):  
Species Composition ◽  
Oil Palm ◽  
Growth Habit ◽  
Diversity Index ◽  
Palm Tree ◽  
Weed Species ◽  
Immature Oil ◽  
Tree Fruit ◽  
Ondo State ◽  
Weed Species Richness

AbstractThe spacing pattern and growth habit of juvenile oil palm during the early stages of field establishment have often led to serious weed problem until canopy closure at subsequent years. This study was carried out during the rainy season of 2016 to evaluate the weed species composition and diversity of an intercrop between 2-year-old oil palm tree and two fruit vegetables at an oil palm plantation in Ala, Akure-North Local Government, Ondo state, Nigeria. Two accessions of tomato (NGB 01665 and NG/AA/SEP/09/053) and eggplant (NGB 01737) were intercropped within the alley of immature oil palm. Weed sampling was carried out using 0.25 m2 quadrat within each experimental plot. Quantitative analysis of weed species parameters and Simpson’s Diversity Index were evaluated. The result revealed that 28, 21 and 20 weed species were found across all the plots at 3, 6 weeks after intercropping (WAI), and after harvesting respectively. Members of Asteraceae produced the highest weed species at 3 WAI (17.857%); Poaceae recorded the highest weed species at 6 WAI and after harvesting (19.048% and 20%) respectively. A total of 23, 16 and 15 broadleaves were found at 3 and 6 WAI, and after harvesting. In all the juvenile oil palm/vegetable intercrops evaluated, the control plot recorded the highest weed species richness at 6 WAI, when compared to other intercropping regimes. The control and juvenile oil palm/tomato (NGB 01665) intercrop plot recorded the highest and lowest Simpson’s Indices of Diversity at 6 WAI (0.877 and 0.734) respectively.

scholarly journals EFIKASI HERBISIDA PARAKUAT UNTUK PENGENDALIAN GULMA PADA BUDIDAYA KELAPA SAWIT (Elaeis guineensis Jacq) TANAMAN BELUM MENGHASILKAN

2020 ◽  
Vol 8 (2) ◽  
pp. 355
Author(s):  
Jatmiko Umar Sidik ◽  
Dad Resiworo Jekti Sembodo ◽  
Rusdi Evizal ◽  
Hidayat Pujisiswanto
Keyword(s):  
Weed Control ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Weed Species ◽  
Randomized Block Design ◽  
Immature Oil ◽  
Significant Difference ◽  
Bartlett Test ◽  
The Difference

Good plantation management is important to increase the productivity of immature oil palm plants, one of which is chemical weed control. This study aims to (1) determine the dosage of paraquat herbicide which is effective in controlling weeds in the area of immature oil palm plantations, (2) find out the differences in the composition of weed species on immature oil palm plates after application of the paraquat herbicide, (3) find out the phytotoxicity of paraquat herbicides in immature oil palm plants after the application of the paraquat dichloride herbicide. This research was carried out in the farmers' oil palm plantation in Jontor Village, Gayabaru District , Central Lampung Regency and Weed Laboratory of the Faculty of Agriculture, University of Lampung from November 2017 to February 2018. This research used a Randomized Block Design (RBD) with 4 replications and 6 treatments consisting dose of paraquat dichloride herbicide of 375g / ha, 500 g / ha, 625 g / ha, 750 g / ha, and mechanical weeding and without weed control (control). Homogeneity of the various data was tested by the Bartlett test, data additivity was tested by the Tukey test and the difference in the mean was tested with the Least Significant Difference (LSD) test at α 5 level. The result of the study showed that : (1) the herbicide paraquat dichloride dose of 375-750 g / ha effectively control weeds in total, weed leaf width of up to 8 week after application, weed grasses and weeds puzzle to 4 week after application, (2) the herbicide paraquat dichloride dose of 375-750 g / ha is effective in controlling Praxelis clematidea weeds up to 8 week after application, weed Ottochloa nodosa and Asystasia gangetica up to 4 week after application, (3) paraquate dichloride dosage levels 375-750 g / ha resulting in differences in weed composition at 4, 8 and 12 week after application , (4) dosages of 375 - 750 g / ha parakuat dichloride herbicides applied to dishes not poisoning immature oil palm plants.

scholarly journals FLORISTIC, STRUCTURE AND ECOLOGICAL GROUPS OF A TREE COMMUNITY IN THE ATLANTIC RAINFOREST AT SERRA DO MAR, SP, BRAZIL

Nativa ◽  
2018 ◽  
Vol 6 ◽  
pp. 706
Author(s):  
Vitor De Andrade Kamimura ◽  
Rodrigo Ferreira Morais ◽  
Carlos Alfredo Joly ◽  
Marco Antonio Assis
Keyword(s):  
Species Distribution ◽  
Diversity Index ◽  
Abundant Species ◽  
Atlantic Rainforest ◽  
Ecological Groups ◽  
Serra Do Mar ◽  
Palm Trees ◽  
Dispersal Syndromes ◽  
Tree Community ◽  
Euterpe Edulis

FLORÍSTICA, ESTRUTURA E GRUPOS ECOLÓGICOS DE UMA COMUNIDADE ARBÓREA NA FLORESTA ATLÂNTICA, SERRA DO MAR, SP, BRASIL Neste trabalho, avaliamos a composição florística e estrutural de uma comunidade arbórea em um contínuo da Floresta Atlântica das Terras Baixas no sudeste brasileiro, acessando a distribuição das espécies entre grupos ecológicos. Para tanto, foram amostrados todos os indivíduos arbóreos com PAP≥15 cm, incluindo palmeiras e samambaias arborescentes, em um hectare, dividido em sub-parcelas de 10x10 m. A comunidade foi analisada por meio do índice de diversidade de Shannon e equabilidade de Pielou, e distribuição de suas espécies entre síndromes de dispersão e classes sucessionais. Registramos 1.120 indivíduos vivos distribuídos em 133 espécies de 41 famílias. As famílias mais ricas em espécies foram Myrtaceae (32 espécies), Fabaceae (12) e Rubiaceae (11), e Euterpe edulis a espécie mais abundante (11,1% do total). Na área de estudo, foram encontradas quatro espécies na lista espécies ameaçadas do Livro Vermelho da Flora do Brasil, e registrada uma dominância de espécies Zoocóricas (86,7% das espécies classificadas) e Não Pioneiras (73,5%). Os resultados gerais da estrutura e composição de espécies da comunidade foram similares à de outros levantamentos realizados na mesma região deste estudo. Por fim, nossos resultados corroboram a grande diversidade arbórea e uma dominância de espécies Zoocóricas e Não-Pioneiras em contínuos de Floresta Atlântica.Palavras-chave: classe sucessional, floresta ombrófila densa, diversidade, síndrome de dispersão. ABSTRACT:The present study evaluated the floristic and structural composition of a tree community in a Lowland Atlantic Rainforest along a forest continuum in Brazilian southeast, assessing the species distribution among ecological groups. For this purpose, we sampled all trees with PBH≥15 cm, including palm trees and tree ferns, in a total area of one hectare, divided into subplots of 10x10 m. The studied community was also analyzed through the Shannon diversity index and Pielou equability, and its species distribution among dispersal syndromes and successional classes. We recorded 1,120 living individuals distributed in 131 species of 40 families. The richest families were Myrtaceae (32 species), Fabaceae (12) and Rubiaceae (11), and Euterpe edulis was the most abundant species (11.1% of the total). In the study area, there were found four species on the Livro Vermelho da Flora do Brasil and recorded a dominance of zoochoric species (86.7% of species classified) and non-pioneers (71.6%). The general results of the community structure and species composition were similar with other surveys carried out in the same region of this study. Finally, our results corroborate the great diversity of trees and a dominance of zoochoric and non-pioneer species in the Atlantic Rainforest continuous.Keywords: dispersal syndromes, diversity, ombrophilous dense forest, successional groups.

scholarly journals Respons Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) terhadap Pemberian Pupuk Organik Asal Pelepah Kelapa Sawit dan Pupuk Majemuk NPK

Agrikultura ◽  
2017 ◽  
Vol 28 (2) ◽  
Author(s):  
Mira Ariyanti ◽  
Gita Natali ◽  
Cucu Suherman
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Organic Fertilizers ◽  
Compound Fertilizer ◽  
Elaeis Guineensis Jacq ◽  
Four Levels ◽  
Palm Fronds

ABSTRACTThe growth response of oil palm (Elaeis Guineensis Jacq.) seedling toward the application of organic fertilizer from palm fronds and NPK compound fertilizerThe research was aimed to study the influence between organic fertilizers from palm fronds and NPK compound fertilizer to reduce NPK compound fertilizer in main nursery. The experiment was conducted from January to April 2017 at the Experiment Station Ciparanje, Faculty of Agriculture, Universitas Padjadjaran. The experimental design used was Randomized Block Design that arranged in factorial patterns with two factors and three replications. The fisrt factor was dosage of organic fertilizers from palm fronds consisted of three levels of 0 g/polybag, 800 g/polybag, and 1600 g/polybag and the second factor was dosage of NPK compound fertilizer consisted of four levels of 0 g/polybag, 20 g/polybag, 40 g/polybag, and 60 g/polybag. The result of the experiment showed that there was interaction effect between organic fertilizers from palm fronds and NPK compound fertilizer on height of seedling and dry weight of the shoot. The dosage of 1600 g/polybag organic fertilizers from palm fronds with the dosage of 20 g/polybag NPK compound fertilizer showed the best result in dry weight of the shoot.Keywords: Oil palm seedling, Main nursery, Organic fertilizer, Palm frond, NPK compound fertilizerABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh interaksi antara pupuk organik asal pelepah kelapa sawit dengan pupuk majemuk NPK yang baik untuk mengurangi penggunaan pupuk majemuk NPK di pembibitan utama kelapa sawit. Percobaan dilaksanakan dari bulan Januari sampai dengan April 2017 di Kebun Percobaan Ciparanje, Fakultas , Universitas Padjadjaran. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok dengan pola faktorial yang diulang sebanyak tiga kali. Faktor pertama meliputi dosis pupuk organik asal pelepah kelapa sawit terdiri dari tiga taraf yaitu 0 g/polybag, 800 g/polybag, dan 1600 g/polybag dan faktor kedua dosis pupuk majemuk NPK yang terdiri empat taraf yaitu 0 g/polybag, 20 g/polybag, 40 g/polybag, dan 60 g/polybag. Hasil percobaan menunjukkan bahwa terdapat pengaruh interaksi pupuk organik asal pelepah kelapa sawit dengan pupuk majemuk NPK terhadap tinggi tanaman dan bobot kering tajuk. Perlakuan pupuk organik asal pelepah kelapa sawit 1600 g/bibit dengan pupuk majemuk NPK 20 g/bibit menghasilkan bobot kering tajuk bibit kelapa sawit terbaik.Kata Kunci: Bibit kelapa sawit, Pembibitan utama, Pupuk organik, Pelepah kelapa sawit, NPK

scholarly journals Effect of oil palm (Elaeis guineensis Jacq.) plantations on individual-level diet variation of Hylaeamys megacephalus (G. Fisher 1814) (Rodentia, Cricetidae) in eastern Amazon Forest

2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Simone Almeida Pena ◽  
Ana Cristina Mendes-Oliveira
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Stomach Contents ◽  
Niche Overlap ◽  
Palm Tree ◽  
Amazon Forest ◽  
Tree Plantation ◽  
Forest Environment ◽  
Oil Palm Plantation

Abstract: In this study we described the diet of Hylaeamys megacephalus (G. Fisher, 1814) and investigated the degree of individual variation in the diet of this species among the Amazon Forest and the oil palm plantation. We analyzed the stomach contents of 36 individuals, of whom 11 were collected in the forest and 25 captured in the palm oil palm plantation. The H. megacephalus diet consisted of 18 food items, of which 12 were animal composition and eight were vegetable composition. The niche amplitude of the species was narrower in the forest area (Baforest = 0.013) compared to the palm tree plantation area (Bapalm = 0.478). This shows that individuals have greater niche overlap in forest areas, while in the plantation areas the animals expand their food niche. In addition, the values of the mean of the individual diet in relation to the diet of the entire population were lower in the palm oil palm plantation environment (ISpalm = 0.164) than in the Forest environment (ISforest = 0.357), indicating a high specialization in the palm oil plantation. These results indicate a population mechanism to reduce intraspecific competition in response to scarce resources.

scholarly journals Recent developments in the application of oil palm fibers in cement composites

2020 ◽  
Vol 14 (1) ◽  
pp. 94-108 ◽  
Author(s):  
Emmanuel Owoichoechi Momoh ◽  
Adelaja Israel Osofero
Keyword(s):  
Oil Palm ◽  
Potential Application ◽  
Elaeis Guineensis ◽  
Experimental Methods ◽  
Engineering Properties ◽  
Palm Tree ◽  
Cement Composites ◽  
Mechanical And Physical Properties ◽  
Recent Developments ◽  
Different Parts

AbstractFibers obtained from different parts of the oil palm tree (Elaeis guineensis) have been under investigation for possible use in construction. Studies have been carried out investigating the engineering properties and possible applications of these fibers. However, the experimental methods employed and the values of mechanical and physical properties recorded by various authors are inconsistent. It has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and application. This review provides information about fibers from different parts of the oil palm, their properties, enhancement techniques, current and potential application in cement composites.

Gibberellinlike activity in phloem sap of the oil palm tree (Elaeis guineensis)

1986 ◽  
Vol 64 (1) ◽  
pp. 214-216 ◽  
Author(s):  
O. O. Otusanya ◽  
A. C. Adebona
Keyword(s):  
Gibberellic Acid ◽  
Ethyl Acetate ◽  
Paper Chromatography ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Palm Tree ◽  
Phloem Sap ◽  
Male Inflorescence

During a 1-year cycle the acidic, ethyl acetate soluble gibberellinlike activity in the phloem sap of the emergent male inflorescence of the oil palm tree (Elaesis guineensis Jacq.) was assayed with barley half-seeds after separation on paper chromatography. Gibberellinlike substances which cochromatograph with gibberellic acid 3 were translocated to the male emerging inflorescence stalk. Their quantity was maximal (45 μg L−1 of sap) in late November, and minimal (1.5 μg L−1 of sap) during March to August.

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