نتایج جستجو برای: palm stems

تعداد نتایج: 39322  

2016
Varsha Vijay Stuart L Pimm Clinton N Jenkins Sharon J Smith

Palm oil is the most widely traded vegetable oil globally, with demand projected to increase substantially in the future. Almost all oil palm grows in areas that were once tropical moist forests, some of them quite recently. The conversion to date, and future expansion, threatens biodiversity and increases greenhouse gas emissions. Today, consumer pressure is pushing companies toward deforestat...

2013
George Livingston Shalene Jha Andres Vega Lawrence Gilbert

The proliferation of oil palm plantations has led to dramatic changes in tropical landscapes across the globe. However, relatively little is known about the effects of oil palm expansion on biodiversity, especially in key ecosystem-service providing organisms like pollinators. Rapid land use change is exacerbated by limited knowledge of the mechanisms causing biodiversity decline in the tropics...

2015
Edson Barcelos Sara de Almeida Rios Raimundo N. V. Cunha Ricardo Lopes Sérgio Y. Motoike Elena Babiychuk Aleksandra Skirycz Sergei Kushnir

African oil palm has the highest productivity amongst cultivated oleaginous crops. Species can constitute a single crop capable to fulfill the growing global demand for vegetable oils, which is estimated to reach 240 million tons by 2050. Two types of vegetable oil are extracted from the palm fruit on commercial scale. The crude palm oil and kernel palm oil have different fatty acid profiles, w...

2014
Zhibo Yang Yanmin Zhu Bo Yuan

In this paper, we propose a vision based palm tracking method with three inherently connected components: i) an offline palm detector that locates all possible palm-like objects; ii) a SURF-based tracking module that identifies the tracked palm’s location using historical information; iii) an adaptive skin color model and a patch similarity calculation module. The outputs from the last componen...

Journal: :Expert Syst. Appl. 2009
Lily Amelia D. A. Wahab Azmi Hassan

The product ion of crude palm oil and palm kernel is a complex problem due to the inf luence of processing variables and environmental factors. These processing variables inf luence the amount of crude palm oil and palm kernel losses during processing. Instead of mathematical model, fuzzy logic approach provides a simpler and easier mechanism to describe the relat ionships between the processin...

Journal: :Frontiers in forests and global change 2022

Tree stems in tropical peat swamp forests are known as considerable methane (CH 4 ) emitters; however, little is about their carbon dioxide (CO 2 and nitrous oxide (N O) exchange. Differences between species, especially the role of palm exchange greenhouse gasses, have remained largely unknown. We measured stem CO , CH N O fluxes from different heights widely spread aguaje palms ( Mauritia flex...

2012
Kimberly M. Carlson Lisa M. Curran Gregory P. Asner Alice McDonald Pittman Simon N. Trigg J. Marion Adeney

Oil palm supplies >30% of world vegetable oil production1. Plantation expansion is occurring throughout the tropics, predominantly in Indonesia, where forests with heterogeneous carbon stocks undergo high conversion rates2–4. Quantifying oil palm’s contribution to global carbon budgets therefore requires refined spatio-temporal assessments of land cover converted to plantations5,6. Here, we rep...

Journal: :به نژادی نهال و بذر 0
مسعود لطیفیان m. latifian palm and tropical fruits research institute of iranمؤسسه تحقیقات خرما و میوه های گرمسیری کشور سیدسمیح مرعشی s. s. marashi palm and tropical fruits research institute of iranمؤسسه تحقیقات خرما و میوه های گرمسیری کشور سهام احمدی‏زاده s. ahmadizadeh palm and tropical fruits research institute of iranمؤسسه تحقیقات خرما و میوه های گرمسیری کشور پرستو نیکبخت p. nikbakht palm and tropical fruits research institute of iranمؤسسه تحقیقات خرما و میوه های گرمسیری کشور

date palm spider mite is one of the major pests of date palm in khuzestan.this pest damages fruits in orchards. in the present study responses of 30 native date palm cultivars of khuzestan were evaluated by assessment of pest infestation severity and fruit damage characteristics. based on the responses, cultivars were clustered into four groups as very highly infested cultivars including liloei...

2013
Donya Ramimoghadam Mohd Zobir Bin Hussein Yun Hin Taufiq-Yap

BACKGROUND A green approach to synthesize nanomaterials using biotemplates has been subjected to intense research due to several advantages. Palm olein as a biotemplate offers the benefits of eco-friendliness, low-cost and scale-up for large scale production. Therefore, the effect of palm olein on morphology and surface properties of ZnO nanostructures were investigated. RESULTS The results i...

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