structuring an efficient organic wheat breeding program构建一个高效的有机小麦育种项目.pdfVIP

Sustainability 2011, 3, 1190-1205; doi:10.3390/su3081190 OPEN ACCESS sustainability ISSN 2071-1050 /journal/sustainability Article Structuring an Efficient Organic Wheat Breeding Program P. Stephen Baenziger 1,*, Ibrahim Salah 1, Richard S. Little 1, Dipak K. Santra 2, 1 1 Teshome Regassa and Meng Yuan Wang 1 Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA; E-Mails: ibrahiminunl@ (I.S.); rlittle2@ (R.S.L.); tregassa2@ (T.R.); mengyuan_wang2010@ (M.Y.W.) 2 Panhandle Research and Extension Center, University of Nebraska–Lincoln, 4502 Avenue I, Scottsbluff, NE 69361, USA; E-Mail: dsantra2@ * Author to whom correspondence should be addressed; E-Mail: pbaenziger1@; Tel.: +1-402-472-1538; Fax: +1-402-472-7904. Received: 8 June 2011; in revised form: 26 July 2011 / Accepted: 2 August 2011 / Published: 5 August 2011 Abstract: Our long-term goal is to develop wheat cultivars that will improve the profitability and competitiveness of organic producers in Nebraska and the Northern Great Plains. Our approach is to select in early generations for highly heritable traits that are needed for both organic and conventional production (another breeding goal), followed by a targeted organic breeding effort with testing at two organic locations (each in a different ecological region) beginning with the F6 generation. Yield analyses from replicated trials at two organic breeding si