نتایج جستجو برای: palm trees

تعداد نتایج: 108547  

This research was conducted in order to study the effects of iron fertilization on yield and chemical composition of date palm var. 'Piarom', on 54 trees in Haji-Abad research station of Hormozgan Province. Trees were 12 years old and research treatments were consisted of: 1-Control treatment 2- Soil surface application of Fe in two levels 3-Application of Fe as localized placement method (Chal...

2017
Emma J Morgan Christopher N Kaiser-Bunbury Peter J Edwards Frauke Fleischer-Dogley Chris J Kettle

Habitat degradation can reduce or even prevent the reproduction of previously abundant plant species. To develop appropriate management strategies, we need to understand the reasons for reduced recruitment in degraded ecosystems. The dioecious coco de mer palm (Lodoicea maldivica) produces by far the largest seeds of any plant. It is a keystone species in an ancient palm forest that occurs only...

Journal: :international journal of horticultural science and technology 2015
mahmood izadi ali reza shahsavar

date bunch fading disorder (dbfd) has been one of the major issues facing date palm growers in recent decades. this order has caused high and non-compensable losses to date palm product. despite numerous studies, predominantly focusing on the causes and mitigation methods of this disorder, no precise influencing factors have been established and practices which can completely control it are not...

Journal: :Forests 2021

Rainforest conversion to woody croplands impacts the carbon cycle via ecophysiological processes such as photosynthesis and autotrophic respiration. Changes in associated with land-use change can be estimated through Land Surface Models (LSMs). The accuracy of flux estimation fluxes has been attributed uncertainties model parameters affecting photosynthetic activity, which is a function both ca...

Journal: :Journal of occupational health 2014
Yee Guan Ng Mohd Tamrin Shamsul Bahri Md Yusoff Irwan Syah Ippei Mori Zailina Hashim

OBJECTIVES Production agriculture is commonly associated with high prevalence of ergonomic injuries, particularly during intensive manual labor and during harvesting. This paper intends to briefly describe an overview of oil palm plantation management highlighting the ergonomics problem each of the breakdown task analysis. METHODS Although cross-sectional field visits were conducted in the cu...

2016
Jason R. Comer Wendy B. Zomlefer Craig F. Barrett Dennis Wm. Stevenson Karolina Heyduk James H. Leebens-Mack

Palms (Arecaceae) include economically important species such as coconut, date palm, and oil palm. Resolution of the palm phylogeny has been problematic due to rapid diversification and slow rates of molecular evolution. The focus of this study is on relationships of the 14 tribes of subfamily Arecoideae and their inferred ancestral areas. A targeted sequencing approach was used to generate a d...

2016
Maryam Muhammad Jafar Jaskani Faisal Saeed Awan Saeed Ahmad Iqrar A. Khan

Microsatellite markers containing simple sequence repeats (SSRs) are a valuable tool for genetic analysis. Date palm is a dioecious and slow flowering and is very difficult to identify the gender of the trees until it reaches the reproductive age (5-10 years). A total of 12 microsatellite primers were used with 30 date palm samples, 14 parents (8 male + 6 females) and 16 progeny (developed from...

Journal: :Remote Sensing 2017
Matheus H. Nunes Robert M. Ewers Edgar C. Turner David A. Coomes

Southeast Asia is the epicentre of world palm oil production. Plantations in Malaysia have increased 150% in area within the last decade, mostly at the expense of tropical forests. Maps of the aboveground carbon density (ACD) of vegetation generated by remote sensing technologies, such as airborne LiDAR, are vital for quantifying the effects of land use change for greenhouse gas emissions, and ...

2013
Swarnalatha Srinivas

Red Palm Weevil (Rhynchophorus ferrugineus) is one of the most serious pests of coconut (Cocos nucifera L.) palms. It is known to attack 20 palm species worldwide. Due to the concealed nature of feeding RPW, infestation is detected during the last stages and farmers become aware of the problem only when the tree is about to die. The acoustic activity of RPW larvae (inside an offshoot and base o...

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