Cucurbitaceae ’98

Table of Contents

Evaluation and Enhancement of Cucurbit Germplasm

30 November – 4 December 1998

Pacific Grove, Calif.

James D. McCreight, Editor

Table of Contents

Dedication: Thomas W. Whitaker

R.W. Robinson and L.C. Merrick

Underexploited Germplasm Resources of the Cucurbitaceae

Deena Decker-Walters 17

Allele Frequency Changes in Germplasm Collections: Theoretical Considerations of Mutation and Fitness

J.E. Staub 31

Participatory Plant Breeding of Squash (Cucurbita sp.) Landraces in Mexico

Clemente Villanueva-Verduzco, Laura C. Merrick, Arturo Martínez-Mirafuentes, Juan Antonio Martínez-Romero, Isaac Meneses-Márquez, Eliseo Nájera-Martínez, María Luisa Rodríguez-Mitzi, Miguel Angel Sánchez-Hernández, and José Luis Vildozola-Tenango 38

Evaluation of Local Pumpkin Genotypes in the Central Region of Saudi Arabia

A.A. Alsadon, H.H. Hegazi, and I.A. Almousa

Influence of Plant Spacing on ‘Connecticut Field’ Pumpkin Size, Density, and Yield

Robert J. Dufault and Ahmet Korkmaz

Morphological and Disease Resistance Evaluation in Cucumis melo and its Wild Relatives

M.L. Gómez-Guillamón, E. Moriones, M. Luis-Arteaga, J.M. Alvarez, J.A. Torés, A.I. López-Sesé, I. Cánovas, F. Sánchez, and R. Camero

Diversity and Heterosis in Bittergourd (Momordica charantia) and Snakegourd (Trichosanthes anguina)

K.V. Peter and S. Rajan

Seed Development and Seed Fill in Hull-less Seeded Cultigens of Pumpkin (Cucurbita pepo L.)

Kelly J. Vining and Brent Loy

Horticultural Characterization and Biodiversity of Chilacayote (Cucurbita ficifolia Bouché), a High-altitude-adapted Squash

Timoteo Valdez-Hernández, Laura C. Merrick, and Clemente Villanueva-Verduzco

Resistance in Squash (Cucurbita sp.) to Maize (Zea mays L.) Herbicides

Clemente Villanueva-Verduzco, Manuel de Jesus Díaz-Rodríguez, Angel Delgadillo-García, Miguel Raya-Hernandez, Rudi Eli Albores-González, and Erubey González-Rodríguez

Dedication: Reginald H. Painter

A.N. Kishaba

Insect Resistance in Cucurbits: 1992-98

Susan E. Webb

Genetic Analysis of Resistance to Whitefly Silvering in Cucurbita pepo L.

R. Bruce Carle, Susan Webb, Annette Chandler

Zucchini Squash Genotypes Resistant to Whitefly-induced Squash Silverleaf Disorder

Yasmin J. Cardoza, Heather J. McAuslane, and Susan E. Webb

Glabrous-leaf Cantaloupe: A Source of Host Plant Resistance to Whiteflies

David Riley, David Wolff, and Dean Batal

Resistance to Western Spotted and Striped Cucumber Beetle in Melon

A.N. Kishaba, S.J. Castle, D.L. Coudriet, J.D. McCreight, and G.W. Bohn

Biological Control of Cucumber Beetles (Coleoptera: Chrysomelidae) and Cucurbit Wilt Disease with Plant-growth-promoting Rhizobacteria

Geoffrey Zehnder, Joseph Kloepper, Changbin Yao, Sadik Tuzun, Oyette Chambliss, and Richard Shelby

Silverleaf Whitefly Resistance Strategies in Melon

James D. McCreight and Alvin W. Simmons

Sources of Whitefly-induced Silvering Resistance in Cucurbita

Linda Wessel-Beaver

Dedication: Rosario Provvidenti

Thomas A. Zitter

Development of Disease-resistant Cucurbit Crops

Claude E. Thomas

Cucurbit Viruses: The Classics and the Emerging

Hervé Lecoq, Gail Wisler, and Michel Pitrat

Soilborne Diseases in Cucurbitaceae: Pathogen Virulence and Host Resistance

B.D. Bruton

Resistance to Fungal Diseases of Foliage in Melon

M. Pitrat, C. Dogimont, and M. Bardin

Occurrence of Fusarium Crown and Root Rot, a New Disease on Greenhouse Cucumbers in British Columbia, and Methods for Disease Control

Z.K. Punja, M. Parker, S. Rose, D. Louie, and K. Ng

Forecasting Long-distance Movement of Cucurbit Downy Mildew

G.J. Holmes, C.E. Main, and T.Z. Keever

Carbohydrate Partitioning, Cultural Practices, and Vine Decline Diseases of Cucurbits

Benny D. Bruton and Vincent M. Russo, Jose Garcia-Jimenez, and Marvin E. Miller

Integrated Management of Melon Vine Decline caused by Monosporascus cannonballus Using Grafting and Chemical Treatments Applied Pre- and Postplanting

M. Edelstein, R. Cohen, S. Shriber, S. Pivonia, D. Shtienberg

Evaluation of Disease Management Strategies for Control of Phytophthora Crown Rot of Summer Squash

G.J. Holmes and M.E. Lancaster

Sensitivity of Cucurbita pepo Experimental Lines and Varieties to Phytophthora Crown Rot and Fruit Rot

Margaret Tuttle McGrath

The Effect of Fruit Load on the Transpiration Rate and Plant Collapse in Melon ( Cucumis meloL.) Infected with Monosporascus cannonballus

S. Pivonia, J. Kigel, R. Cohen, and J. Kigel

Host Range of Pseudoperonospora cubensis (Berk & Curt.) Rostow Causing Downy Mildew of Bittergourd (Momordica charantia L.)

Mini Simon, Sally K. Mathew, and M. Abdul Vahab

Dedication: William Carroll Barnes

Richard L. Lower

Cucurbit Genetics and BreedingAn Historical Perspective and a Look into the Future

Richard L. Lower

Association of Seed Size and Dimensions with Fruit Shape in Cucurbita pepo

H. S. Paris and H. Nerson

Exogenous Brassinosteroids Influence Sex Expression and Vegetative Development of Cucumber (Cucumis sativus L.) Plants

Katerina Papadopoulous and Rebecca Grumet

Breeding Melon for Resistance to Lettuce Infectious Yellows Virus

James D. McCreight

Relationship of Watermelon Genotype and Ploidy to Incidence of Yellow Vine Disease

S.D. Pair and B.D. Bruton

Effects of Monosporascus cannonballus on Root Traits of Susceptible and Tolerant Melon (Cucumis melo L.) Cultivars

Kevin Crosby

Performance of Cucumis melo L. Hybrids and their Heterosis for Fruit Quality in Three-way Reciprocal Crosses

Alejandro Ching and Liyang Wu

Root Acclimation to Chilling Root Temperature in Figleaf Gourd Plants: The Role of Root Plasma Membrane  H+-ATPase

Sung Ju Ahn, Yang Ju Im, Gap Chae Chung, and Baik Ho Cho

Yield Components in Cucumber: An Overview

Christopher S. Cramer and Todd C. Wehner

Fruit Yield and Yield Components of Cucumber Populations Grown at Low Plant Density

Christopher S. Cramer and Todd C. Wehner

Application of Molecular Markers in Breeding Zucchini Yellow Mosaic Virus (ZYMV) Tolerant Pumpkin (Cucurbita pepoL.) Varieties in Austria

T. Lelley, S.M. Henglmueller, and M. Riedle-Bauer

Horticultural Characters for the Dihaploid Plants Derived from Anther Culture in Cucurbita pepo L.

E.I. Metwally, S.A. Moustafa, B.I. El-Sawy, and T.A. Shalaby

Gynoecy in Cucumber and Muskmelon

T.A. More and V.S. Seshadri

Production and Characteristics of Japanese Cucumber

Yoshiteru Sakata, Masami Morishita, and Keita Sugiyama

Induction of Seedless Watermelons by Pseudogamy

Keita Sugiyama and Masami Morishita

Production of Triploid Watermelon Transplants

Charles S. Vavrina and Donald N. Maynard

Dedication: Henry M. Munger

Molly Kyle and Dermot Coyne

Intraspecific Classification of Cucumis melo: How is the Morphological and Biochemical Variation of Melons Reflected at the DNA Level?

Rafael Perl-Treves, Asya Stepansky, Arthur A. Schaffer, and Irina Kovalski

Characterization of Sources of Resistance to the Watermelon Strain of Papaya Ringspot Potyvirus in Cucumber: Allelism and Cosegregation with other Potyvirus Resistances

R. Grumet, E. Kabelka, S. McQueen, and R. Humphrey

Inheritance of the Resistance to Squash Leaf Curl Virus in Cucurbita pepo L.

Clara E. Montes-Garcia, Sergio Garza-Ortega, and Judith K. Brown

Relationships among Accessions of Cucurbita pepo Based on ISSR Analysis

N. Katzir, E. Leshzeshen, G. Tzuri, N. Reis, Y. Danin-Poleg, and H. S. Paris

A New Synthetic Amphidiploid in Cucumis from a C. sativus x C. hystrix F1 Interspecific Hybrid

Jinfeng Chen, Jeffrey W. Adelberg, Jack E. Staub, Halina T. Sjorupska, and Bill B. Rhodes

Development of Cucumber Cultivars Resistant to Root-knot Nematodes

S. Alan Walters, Todd C. Wehner, and Kenneth R. Barker

Theoretical Expectations for the Potential Use of Genetic Markers in Marker-assisted Selection

J. E. Staub and Thomas Horejsi

Simple Sequence Repeats as Reference Points in Cucumis Mapping

Y. Danin-Poleg, N. Reis, G. Tzuri, and N. Katzir

Genome Mapping of Melon (Cucumis melo L.) for Localizing Disease Resistance Genes

Yi-Hong Wang, Claude E. Thomas, and Ralph A. Dean

Toward a Sturdy Genetic Map of Melon (Cucumis melo L.)

Marc Oliver, Jordi García-Mas, Ana Isabel López, Humberto Gómez-Paniagua, and M. Carmen de Vicente

Markers Linked to Agronomic Traits of Cucumber (Cucumis sativus L.)

Hidemasa Mizusawa

Construction of a Genetic Map of Melon with Molecular Markers and Horticultural Traits

C. Perin, L. Hagen, C. Dogimont, V. De Conto, and M. Pitrat

AFLP Markers Linked to Fom-2, a Gene Conferring Resistance to Fusarium Wilt of Melon (Cucumis melo L.)

Yi-Hong Wang, Claude E. Thomas, and Ralph A. Dean