EFFECT OF MULCHES AND COVER CROPS ON WATER STATUS AND GAS EXCHANGE OF COCONUT (Cocos nucifera L.) PALMS IN GRAVELLY SOILS

Ranasinghe, C. S.; Premasiri, R. D. N.; Silva, L. R. S.

doi:10.4038/cocos.v15i0.2179

Cited by 2 publications

(2 citation statements)

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“…To explain the sugar source in this case, Van Die and Tammes [13] proposed that soluble sugars from photosynthesis in the leaves are transported as the mobile phase of the sieve tube system throughout vegetative parts of the palms before they are used directly to form fruits or sap without starch accumulation. Ranasinghe et al [19] found that soluble sugars are available in leaf and trunk tissues in sap-and nutproducing coconut palms (C. nucifera). Sugary sap appears to be the major reserve in this palm rather than starch.…”

Section: Origin and Transportation Of Sap Inside Palmmentioning

confidence: 99%

“…However, glucose is the dominant sugar for sap squeezed from felled trunks of E. guineensis because sucrose, starch, cellulose, and/or hemicellulose may be hydrolyzed into glucose and other sugars by microbes in that particular sample [12]. Sucrose is commonly regarded as the main transport form of carbohydrates in many plants [13,19]. Phloem sap of palm species contains this sugar.…”

Section: Comparison Of Sap Yield From Various Palmsmentioning

confidence: 99%

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Sap from various palms as a renewable energy source for bioethanol production

Nguyen

Rabemanolontsoa

Saka

2016

CI&CEQ

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Sap is a watery fluid that transports plant photosynthetic products towards various tissues to support growth. Tapping palms for their sap is reported to have originated from India approximately 4,000 years ago. Palm sap is rich in sugars with some inorganics and nutrients, which are attractive components for bioethanol production. Based on advances and current knowledge on the availability, collection, yield, and exploitation of various palm saps, this article evaluates their potential and sustainability as feedstocks for bioethanol production.

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Section: Origin and Transportation Of Sap Inside Palmmentioning

confidence: 99%

Section: Comparison Of Sap Yield From Various Palmsmentioning

confidence: 99%

Sap from various palms as a renewable energy source for bioethanol production

Nguyen

Rabemanolontsoa

Saka

2016

CI&CEQ

View full text Add to dashboard Cite

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Computer simulations of micellar systems

Brodskaya

2012

Colloid J

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LINTRODUCTIONMicelles, which represent nanosized aggregates formed from amphiphilic molecules in solutions, are, at present, being intensely investigated by different chemical and physical methods. Surfactants, block copolymers, and biomolecules are typical amphiphilic compounds. These compounds are distinguished by the presence of spatially separated polar and nonpolar moieties in their molecule, which differently interact with solvent molecules and predetermine the ability of the compounds to aggregate in solutions. Aggregates formed in solutions are characterized by diverse shapes and sizes, while their solutions are distin guished by various phase states, which, first of all, depend on the nature of a solvent, the concentration of an amphiphilic substance, and the structure of its mol ecules. So called normal and reverse micelles are formed in polar and nonpolar solvents, respectively. Researchers studying micellar solutions have to solve the following main problems:-determination of the shape and average size of micelles and the size distribution of aggregates; -description of the molecular structure of aggre gates and surrounded solutions;-estimation of the characteristics of the interac tion of aggregates with each other and with a sol vent;-investigation of the influence of different addi tives (first of all, salts) present in solvents on micelles;-revealing mechanisms that predetermine the aggregation processes and their kinetics;-determination of the domains of different phase states; and -studying the behavior of micelles in surface lay ers, including solution-solid interfaces.All of the above listed problems and a large number of other questions are solved using diverse experimen tal and theoretical methods, including the methods of molecular simulations. The latter are increasingly being employed to supplement both real experiments and theoretical approaches, especially those used to determine the molecular structure of aggregates and mechanisms of their formation. In these cases, the suppleness of the simulation methods and the possibil ity of visualization of studied objects sometimes make these methods indispensable instruments for describ ing micellar systems. However, it should be noted that, at present, computer simulations are characterized by constraints on the sizes of examined systems (several nanometers) and the times of their observation (sev eral nanoseconds), which are partly overcome by sim plifying the description of the molecular structure of studied compounds. This review is devoted to studies of micellar systems performed by the methods of molecular simulations since 2000 up to the present. This work does not pre tend to absolute completeness; however, in the opin ion of the author, it reflects the main results of using computer methods for solving the above formulated problems. Works devoted to simulations of micellar systems were first carried out using lattice models more than 20 years ago [1]. Then, using a similarly simplified description devoid of the constraints inher ent in...

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EFFECT OF MULCHES AND COVER CROPS ON WATER STATUS AND GAS EXCHANGE OF COCONUT (Cocos nucifera L.) PALMS IN GRAVELLY SOILS

Cited by 2 publications

References 3 publications

Sap from various palms as a renewable energy source for bioethanol production

Sap from various palms as a renewable energy source for bioethanol production

Computer simulations of micellar systems

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