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- Title
Influence of Three Nitrogen Fertilization Schedules on Bermudagrass and Seashore Paspalum: II. Carbohydrates and Crude Protein in Stolons.
- Authors
Rimi, Filippo; Macolino, Stefano; Richardson, Michael D.; Karcher, Douglas E.; Leinauer, Bernd
- Abstract
In the transition zone, a primary concern in managing warm-season turfgrasses is turf survival under low temperatures. The objectives of this study were to determine the effects of three N fertilization schedules on stolon carbohydrates and crude protein (CP) reserves of four bermudagrasses [Cynodon dactylon (L.) Pers.] and a seashore paspalum (Paspalum vaginatum Sw.). A field trial was performed at the agricultural experimental farm of Padova University (northeastern Italy). Bermudagrass cultivars Princess-77, Riviera, SWI 1014, and Yukon and seashore paspalum 'Sea Spray' were compared under three N fertilization schedules: (i) 6.7 g N m-2 on 15 May, 15 June, and 15 August, (ii) 5 g N m-2 on 15 May, 15 June, 15 August, and 15 October, and (iii) 4 g N m-2 on 15 May, 15 June, 15 August, 15 September, and 15 October. Turf samples measuring 20 by 20 by 4 (depth) cm were collected monthly from September to April 2009 to 2010 and 2010 to 2011. The stolons were separated from the remainder of the samples and starch, water-soluble carbohydrates (WSC), and CP were determined on a dry matter basis. The bermudagrass cultivar Riviera was characterized by high stolon density and showed highest carbohydrates (starch and WSC) content along with Yukon. Late-season applications of N had limited influence on carbohydrates content but increased the concentrations of CP from November through April.
- Subjects
BERMUDA grass; PASPALUM vaginatum; NITROGEN fertilizers; PLANT shoots; CARBOHYDRATE content of plants; PLANT proteins
- Publication
Crop Science, 2013, Vol 53, Issue 3, p1168
- ISSN
0011-183X
- Publication type
Article
- DOI
10.2135/cropsci2012.09.0564