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Gary W. Lightner

The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.

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Tamela D. Michaels and John D. Lea-Cox

Electronic information systems that take advantage of new technological developments on the Web are a key towards fulfilling the mission of the extension educator; i.e., to help individuals, families and communities put research-based knowledge to work in improving their lives. Webpages are one key to achieving this goal, but vertical searches using search engines are tedious and inefficient. There is a need for a) rapid and easy access to verifiable information databases and b) the coordination of good information resources that are already available on the Web in an horizontal format. NurseryWeb was developed as an open information resource within a frames environment that enables users to gather information about a variety of nursery-related material; e.g., cultural information, diagnostic criteria for disease and pest identification, data on integrated pest management and marketing data. In addition, a password-protected communication resource within the page provides nurserymen with conferencing and direct email connections to nursery extension specialists through WebChat, as well as providing time-sensitive data, alerts, and links to professional organizations. A number of critical issues remain unresolved—e.g., the integrity of information links, data and picture copyright issues, and software support. Nonetheless, the ease of use, availability of information in remote areas at relatively low cost, and 24-hr access assures that this type of information provision will become dominant in the future.

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G.B. Cap, P.A. Roberts, I.J. Thomason and T. Murashige

, for their support. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.

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A. Talaie, B. Goleyn, A. Vezvaei and Y. Ebrahimi

`Page' mandarin is a complex hybrid between `Minneola' tangelo and `Clementine' mandarin. Because of self-incompatibility, this cultivar severely needs pollinizers and, if a suitable pollinizer does not exist, it will produce few and small fruit. In this study, the effects of pollen grains of nine cultivars of citrus ['Sour' orange, `Duncan' grapefruit, `Sweet' lemon, `Salustiana' orange, `Local' mandarin, `Hamlin' orange, `Siavaraz III Locan' orange, `Marrs' orange, and `Shell' mahaleh (natural hybrid)] on the quantitative and qualitative characteristics of fruit (weight, diameter, length, volume, peel thickness, juice content, developed seeds, undeveloped seeds, total soluble solids, acidity, pH, vitamin C, and percentage of final fruit set) were investigated and evaluated. After artificial pollination and during fruit growth and development, seven times abscission and fruit color and diameter were recorded. Fruit were harvested 29 weeks after pollination and were analyzed. The results showed that this cultivar, in addition to the complete self-incompatibility, has the ability of week parthenocarpy, which results in small and low-quality fruit and also parthenocarpy is induced. `Page' mandarin is cross-compatible with some cultivars, such as `Marrs' orange. There is a positive and significant correlation between developed seed number and fruit weight. The pollen of `Siavaraz III Local' orange has the most effects on percentage of final fruit set. The pollen of `Shell' mahaleh (natural hybrid) has the most effect of the quantitative characteristics, and the pollen of `Marrs' orange has the most effects on qualitative characteristics. It was concluded that `Hamlin' orange is the best pollinizer for `Page' mandarin in northern Iran. The results of this study were analyzed with the use of a randomized complete-block design.

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A. Belaj, I. Trujillo, R. de la Rosa, L. Rallo and M.J. Giménez

study were used as part of a MS Thesis of A. Belaj. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.

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Jean-Guy Parent and Danièle Pagé

We thank Marc G. Fortin, McGill Univ., and Richard Hogue, MAPAQ, for their helpful criticism of the manuscript. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper

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Jean-Guy Parent and Danièl Pagé

of the manuscript. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.

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Sheri Dorn, Milton G. Newberry III, Ellen M. Bauske and Svoboda V. Pennisi

objective of this article was to determine whether state and local program management and volunteers are on the same page with regard to the importance of EMG program ERTs. The effects of region, generation of the respondent, and host county population

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Jocelyne Kervella, Loïc Pagès and Michel Génard

. Bruchou for his valuable mathematical advice. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.

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Jocelyne Kervella, Loïc Pagès and Michel Génard

. Ducailar, V. Serra, and F. Pfeiffer for their technical assistance and T. Pascal and J. Aymard for their help in choosing the genotypes studied. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations