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Seon-Kyu Kim and Dong-Yong Choi

All possible grafting combinations of seven roostock s and six scion cultivars were made to evaluate the rootstock/scion compatibility in grapevine nursery production. Percentage of takes was variable from 20.5%(Uni Blanc/161-49 C.) to 87.3%(K 188-2/161-49 C). Among scion cultivars, mean percentage of takes varied from 82.5%(K 188-2) to 37.5%(Ugni Blanc) while roostocks with all scion cultivars varied from 69.9%(R 110) to 52.8%(101-14 Mgt.), indicating the greater effects of scion on percentage of takes. Variation in rooting index(0: none to 4:profuse rooting scale) was from 3.48(SV 5276/Rip. Gloire). 3.49(Neo Muscat/101-14 Mgt.) to 1.63(SV 5276/161-49 C). Mean rooting index of rootstocks with all scion cultivars varied from 3.10(101-14 Mgt.) to 1.95(161-49 C.) while that of scion cultivars varied from 3.07(SV 5276) to 2.44(Ugni Blanc). In rooted grafting, rootstock had a greater effect than scion cultivars.

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Earl E. Albregts and C. K. Chandler

The phosphorus content is usually high in soils on which strawberry production occurs in west central Florida because of moderate P levels in the virgin soil and yearly applications of P by the growers. A P rate study was conducted to test the calibration of P for strawberry nursery production, and a randomized complete block design with four replicates was used. Rates of 0, 11, 22, and 33 kg/ha P were applied to a Seffner sand which had an initial soil P level of 86 mg/kg using the Mehlich II soil extractant. Soil tests routinely show P soil concentrations up to 250 mg/kg or greater with 86 mg/kg rated in the high range. In this study the P applied to the beds was cultivated into the soil and six plants of two strawberry clones (Fl 87-210 and Fl 85-4925) were set in each plot on 28 May 1991. All nutrients except P were applied as needed during the season. Leaf P content of daughter plants on 20 Aug 1991 varied from 0.23 to 0.25% among P treatments and were not different because of P rates. All marketable size daughter plants were harvested on 8 Oct 1991. The number, total wt, and average wt of daughter plants were not different because of applied P rates.

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Gary R. Bachman and Ted Whitwell

Demand for commercially grown Uniola paniculata L. (southern seaoats) is increasing for use in restoring beaches damaged by tropical storms. Fresh seeds harvested from the Jekyll Island, Ga area (with permission of the Jekyll Island Authority), were planted in 50 peat: 50 perlite and treated with 100 or 500 ppm GA4 for 24 h. Germination was higher for 100 compared to 500 ppm GA4. Liners grown from seed and planted with the crowns even with the surface of the pine bark-sand media, compared to deep planting to simulate burial conditions of beach planting, had the highest shoot and root weights after 100 days. Uniola paniculata liners with the crowns buried had reduced weights due to higher moisture conditions in the bottom of the containers. Uniola paniculata grown without supplemental fertilization had shoot weights similar to those of plants receiving 1.5 lb N/yd3 (0.89 kg N/m3) from both quick or slow release fertilizers. Increasing N to 3 lb/yd3 (1.78 kg N/m3) and/or supplying micronutrients only, reduced shoot weight. Nursery production of Uniola paniculata in pine bark-sand is one way to increase the supply of this important dune plant.

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Sally M. Schneider and Bradley D. Hanson

California phytosanitary regulations for fruit and nut plant nursery production require preplant fumigation with specified treatments for control of parasitic nematodes before nursery stock can be certified and sold [ California Department of Food

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Brian E. Jackson, Robert D. Wright and John R. Seiler

Beginning in the early 1970s, the search for organic soilless substrates for container production has been an important horticultural research topic with the introduction of hardwood and softwood barks as the primary component in nursery container

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Adam Newby, James E. Altland, Charles H. Gilliam and Glenn Wehtje

Liverwort is a common weed in nursery containers throughout the United States. It is a primitive spore-bearing plant in the class Hepaticae. Liverwort thrives in conditions with high light ( O'Hanlon, 1926 ), low ultraviolet radiation ( True et al

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Ada Baldi, Anna Lenzi, Marco Nannicini, Andrea Pardini and Romano Tesi

refer to field conditions, while no data are available on nutrient needs and mineral composition of bermudagrass in the nursery. A new nursery activity has been recently developed for stoloniferous turfgrass since an innovative technique for

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Garrett A. Ridge, Natasha L. Bell, Andrew J. Gitto, Steven N. Jeffers and Sarah A. White

As competition for freshwater resources and the potential for more restrictive water use regulations increase, nursery and greenhouse plant producers require information related to the use and quality of alternative water sources to ensure continued

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Calvin Chong and Bob Hamersma

1 Research Scientist. 2 Agricultural Technician. This project was supported in part by QUNO Corp., Thorold, Ont. We acknowledge the contribution of unrooted cuttings by Willowbrook Nurseries, Fenwick, Ont.; Mori Nurseries, Niagara

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Amy Fulcher, Dava Hayden and Winston Dunwell

The objectives of Kentucky's Sustainable Nursery Production Practices Extension Program are for 1) the Kentucky nursery industry to continue sustained growth and 2) Kentucky growers to produce high quality plants, efficiently use pesticides, be stewards of their land and Kentucky's environment. Sustainable Nursery Program Components are 1) Integrated Pest Management (IPM): Nursery Scouting, Scout Training and Scouting Education for growers, Extension workers, and students; 2) Best Management Practice (BMP) Workshops: BMP VI: Disease Demolition Workshop; 3) Production Practice Demonstration: Pruning Training, Pesticide Handling, and Safety and Environmental Stewartship. 4.) Research: Pruning protocols; Media and media amendments; Precision Fertilization and Irrigation. The Kentucky Nursery Crops Scouting Program scouting guidelines were developed and contained: a weekly scouting/trapping guide; a listing of which pests to look for and on what host plants, and a detailed methodology of precisely how to look for the pest, its damage, and how to record this information such that comparisons could be made across nurseries and seasons.