were eventually located. After several years of preliminary work ( Martínez et al., 1994 ), eight of these plants that showed small ampelographic or agronomic differences were finally selected. Cuttings of each of these clones were planted at the Misión
Susana Boso Alonso, Virginia Alonso-Villaverde Pilar Gago, José L. Santiago, Mariá C. Martínez and Emilio Rodriguez
Pilar Soengas, Maria Elena Cartea, Pablo Velasco, Guillermo Padilla and Amando Ordás
, mainly on the border of Portugal. Populations have been kept as an active collection at the ‘Misión Biológica de Galicia’ [Consejo Superior de Investigaciones Científicas (CSIC), Pontevedra, Spain] ( Ordás and Baladrón, 1985 ). The agronomic and
David Douches, Walter Pett, Diedrich Visser, Joseph Coombs, Kelly Zarka, Kimberly Felcher, Gurling Bothma, Johan Brink, Muffy Koch and Hector Quemada
potato tuber moth. This cultivar has been characterized at the molecular level ( Zarka et al., 2010 ) and has been thoroughly evaluated for safety as a human food source ( Quemada et al., 2010 ). The current study focuses on the agronomic performance of
Robert R. Shortell, William A. Meyer and Stacy A. Bonos
characterize recently developed Kentucky bluegrass cultivars that are or will become commercially available. Morphological and agronomic characteristics are used by breeders in the development of improved cultivars and by managers for specific cultivar
Brian M. Irish, Ricardo Goenaga, Sirena Montalvo-Katz, Bernardo Chaves-Cordoba and Inge Van den Bergh
relied on heavily by breeding and selection programs that mine them for agronomically important traits. Nevertheless, breeding bananas is problematic due to the high levels of sterility and the need for genotypes with parthenocarpic fruit that are
Regina P. Bracy and Richard L. Parish
Manufacturers of certain vegetable seeders have promoted their products as precision seeders and implied that their products are more accurate at seeding uniformity than typical agronomic seeders. A comparison of the seeding uniformity of several vegetable seeders and agronomic seeders was made to evaluate this assumption. Two vegetable seeders and two agronomic seeders were evaluated for seeding uniformity and precision using soybean seed. The Stanhay S870 (belt-type) vegetable seeder had the best seeding uniformity and precision spacing of all the seeders tested. The Gaspardo SV255 (vacuum) vegetable seeder and the John Deere 7200 MaxEmerge (fingermeter) agronomic seeder were comparable in seeding uniformity and precision, although fewer skips were noted with the John Deere. The Great Plains 8030 (brushmeter) agronomic seeder had a large number of skips and multiples and poor seeding precision.
Nohra Rodríguez Castillo, Daniel Ambachew, Luz Marina Melgarejo and Matthew Wohlgemuth Blair
selected from the national genebank, and 3) commercial cultivars. The agronomic performance of all the genotypes was also compared. The overall goal was to understand the variability in qualitative and quantitative plant traits and characteristics found in
Jan E. Paul Debaene and Laren Robison
Tepary beans (Phaseolus acutifolius A. Gray) are native to north America and are considered drought and heat tolerant. Teparies are not commonly grown commercially, so little is known about their field performance. This study compared agronomic traits of 19 tepary bean lines to two pinto bean (P. vulgaris) varieties. The beans were evaluated under field conditions in a randomized complete block design with three replications. Traits examined included time to germinate, time to first trifoliate leaf, time to flower, height, seed protein content, and yield. Tepary yields ranged from 1593.0 to 656.4 kg/ha with three lines averaging 63.7 to 76.8% more than the average pinto bean yield. Tepary protein content ranged from 17.1 to 29.7% and averaged 24.7%. Tepary beans have great potential for adaptation to dry conditions while producing adequate yields and protein content.
Robert F. Bevacqua
Sugar cane and pineapple have dominated agriculture in Hawaii for more than 100 years. The plantation system that produced these agronomic crops is now in sharp decline, and a search is underway for horticultural crops, such as macadamia nut, papaya, and potted foliage plants, with which to diversify island agriculture. This paper, using the case study of potatoes and melons, describes the constraints encountered in establishing a 1000-acre farm enterprise on lands made available by the closing of Oahu Sugar Plantation in 1994. The major constraints were 1) a short-term lease with a clause for immediate revocation, 2) the reallocation of irrigation water from agricultural to conservation use, 3) the available plantation work force was ill-prepared for the varied tasks of horticultural production, 4) an irrigation infrastructure not compatible with vegetable production, 5) difficulty in expanding pesticide labels for local use, and 6) the absence of an institution to provide policy and technical assistance in addressing the above constraints.
Tatiana Pagan Loeiro da Cunha-Chiamolera, Miguel Urrestarazu, Arthur Bernardes Cecílio Filho and Isidro Morales
Filho et al., 2013 ; Fuente et al., 2014 ). However, few studies have been conducted with vegetables in protected environments. Cecílio Filho et al. (2011 , 2013 ), Rezende et al. (2011) , and Tringovska et al. (2015) tested the agronomic and