@article{wehner_shetty_sloane_2004, title={Field and detached-fruit screening tests for resistance to belly rot in cucumber}, volume={39}, number={1}, journal={HortScience}, author={Wehner, T. C. and Shetty, N. V. and Sloane, J. T.}, year={2004}, pages={149–152} } @article{shetty_wehner_2002, title={Estimation of fruit grade weights based on fruit number and total fruit weight in cucumber}, volume={37}, number={7}, journal={HortScience}, author={Shetty, N. V. and Wehner, T. C.}, year={2002}, pages={1117–1121} } @article{shetty_wehner_thomas_doruchowski_shetty_2002, title={Evidence for downy mildew races in cucumber tested in Asia, Europe, and North America}, volume={94}, ISSN={["0304-4238"]}, DOI={10.1016/S0304-4238(02)00013-4}, abstractNote={Downy mildew (Pseudoperonospora cubensis (Berk. and Curt.) Rostov.) is an important disease in most cucumber (Cucumis sativus L.) production areas worldwide. A set of cucumber cultivars and breeding lines (hereafter referred to collectively as cultigens) resistant to downy mildew in particular regions of the world were tested for resistance in geographical regions thought to differ in pathogen virulence or race (US, Poland, China, and India). Cucumber cultigens used in the study were developed in the US, Poland or China, and differed in their resistance to downy mildew. These cultigens were evaluated against local isolates of P. cubensis under field conditions (North Carolina and India) or greenhouse conditions (South Carolina and Poland). Significant differences were observed among cultigens for resistance to P. cubensis at all locations. Individual cultigens differed in their resistance to the pathogen at different geographic locations, providing evidence that the different local isolates represented different races of the pathogen. Cultigens from PR China that were resistant to downy mildew in that country were also resistant in India. However, those same cultigens were intermediate in resistance in the US and Poland. Cultigens from the US and Poland that were resistant in those countries were intermediate in resistance in India. The most resistant cultigens over all locations were ‘Nongchen #4’ (PR China) and M 21 (NC State University).}, number={3-4}, journal={SCIENTIA HORTICULTURAE}, author={Shetty, NV and Wehner, TC and Thomas, CE and Doruchowski, RW and Shetty, KPV}, year={2002}, month={Jun}, pages={231–239} } @article{shetty_wehner_2002, title={Screening the cucumber germplasm collection for fruit yield and quality}, volume={42}, ISSN={["0011-183X"]}, DOI={10.2135/cropsci2002.2174}, abstractNote={ABSTRACTYield of cucumber (Cucumis sativus L.) in the United States has not been significantly increased during the last two decades. Our objective was to evaluate the USDA cucumber germplasm collection for fruit yield and quality. All cucumber plant introduction accessions from the USDA National Plant Germplasm System collection plus check cultivars and breeding lines (hereafter collectively referred to as cultigens) were evaluated for early, total, and marketable yield (number and weight), fruit quality rating, and days to harvest in small plots harvested once. All plants were treated with ethephon (2‐chloroethyl phosphonic acid) to make them gynoecious. Highly significant differences were observed among cultigens for all traits evaluated in the study. Pickling type cultigens with the highest yield (fruit weight) were PI 209065, PI 326598, PI 137848, PI 285610, and PI 264666. Slicing type cultigens with the highest yield were PI 234517, PI 118279, PI 304085, and PI 512614. Beit Alpha type cultigens with the highest yield were PI 167050, PI 163213, PI 532519, PI 211978, PI 357864, PI 183231, and PI 211117. Trellis type cultigens with the highest yield were PI 264228, PI 478366, PI 390262, PI 532524, PI 390267, and PI 532520. The USDA collection also exhibited a wide range in diversity for marketable fruit number, fruit weight, percentage of culled fruit at harvest, fruit quality, and days to harvest. High yielding cultigens identified in the study could be used to develop high yielding cultivars.}, number={6}, journal={CROP SCIENCE}, author={Shetty, NV and Wehner, TC}, year={2002}, pages={2174–2183} } @article{walters_shetty_wehner_2001, title={Segregation and linkage of several genes in cucumber}, volume={126}, number={4}, journal={Journal of the American Society for Horticultural Science}, author={Walters, S. A. and Shetty, N. V. and Wehner, T. C.}, year={2001}, pages={442–450} } @article{shetty_wehner_2000, title={Breeding for high fruit yield in cucumber}, ISBN={["90-6605-852-8"]}, ISSN={["0567-7572"]}, DOI={10.17660/actahortic.2000.510.3}, number={510}, journal={PROCEEDINGS OF CUCURBITACEAE 2000}, publisher={Leuven, Belgium : International Society for Horticultural Science}, author={Shetty, NV and Wehner, TC}, year={2000}, pages={21–27} } @article{wehner_shetty_clark_2000, title={Screening the cucumber germplasm collection for combining ability for yield}, volume={35}, number={6}, journal={HortScience}, author={Wehner, T. C. and Shetty, N. V. and Clark, R. L.}, year={2000}, pages={1141–1150} } @article{wehner_shetty_wilson_2000, title={Screening the cucumber germplasm collection for fruit storage ability}, volume={35}, number={4}, journal={HortScience}, author={Wehner, T. C. and Shetty, N. V. and Wilson, L. G.}, year={2000}, pages={699–707} } @article{wehner_shetty_2000, title={Screening the cucumber germplasm collection for resistance to gummy stem blight in North Carolina field tests}, volume={35}, number={6}, journal={HortScience}, author={Wehner, T. C. and Shetty, N. V.}, year={2000}, pages={1132–1140} } @article{shetty_wehner_1999, title={Crop loss to eight diseases of watermelon in North Carolina}, number={22}, journal={Report (Cucurbit Genetics Cooperative)}, author={Shetty, N. V. and Wehner, T. C.}, year={1999}, pages={47} } @article{shetty_wehner_1998, title={Evaluation of oriental trellis cucumbers for production in North Carolina}, volume={33}, number={5}, journal={HortScience}, author={Shetty, N. V. and Wehner, T. C.}, year={1998}, pages={891–896} } @article{wehner_shetty_1997, title={Downy mildew resistance of the cucumber germplasm collection in North Carolina field tests}, volume={37}, ISSN={["0011-183X"]}, DOI={10.2135/cropsci1997.0011183X003700040050x}, abstractNote={Downy mildew [Pseudoperonospora cubensis (Berk. & Curt.) Rostov] is an important disease in most cucumber (Cucumis sativus L.) production areas of the world. Resistant cullivars are available, but higher levels of resistance are needed if yield losses are to be avoided. The objective of this experiment was to evaluate all available plant introduction accessions (from the U.S. National Plant Germplasm System), cultivars, and breeding lines (hereafter collectively referred to as cultigens) of cucumber for downy mildew resistance under field conditions in North Carolina. All available cultigens were tested in four blocks (2 yr and two replications) under natural field epidemics of the disease. Mean ratings for downy mildew leaf damage ranged from 1.3 to 9.0 on a 0 to 9 scale. The most resistant nine cultigens originated from the USA, and were primarily adapted cultivars or breeding lines. The most resistant cultigens, for which multiple‐year data were available, were Gy 4, ‘Clinton’, PI 234517, ‘Poinsett 76’, Gy 5, ‘Addis’, M 21, M 27, and ‘Galaxy’. The most susceptible cultigens for which multiple year data were available, were P1288995, P1176952, PI 178886, and P1211985. We classified 17 cultigens as highly resistant (1.3–3.0), 87 as moderately resistant (3.3–5.0), 311 as moderately susceptible (5.3–7.0), and 248 as highly susceptible (7.3–9.0) for the cultigens with multiple‐year data. No plant introduction accessions were found to be more resistant than the most resistant elite cultivars and breeding lines tested.}, number={4}, journal={CROP SCIENCE}, author={Wehner, TC and Shetty, NV}, year={1997}, pages={1331–1340} } @article{shetty_wehner_1997, title={Measurement of sex expression in cucumber using percentage staminate nodes and a subjective rating for gynoecy}, number={20}, journal={Report (Cucurbit Genetics Cooperative)}, author={Shetty, N. V. and Wehner, T. C.}, year={1997}, pages={7} }