"1524","10","archive","14",,,"disk0/00/00/15/24","2011-09-14 10:16:57","2011-09-14 10:16:57","2011-09-14 10:16:57","article",,,"show","Library-ICRISAT@cgiar.org",,,"","","","","","","","","","","0",,,"Mgonja","M A","","","","","","","Mgonja","M A","","","","",,,,,"","",,,,,"","","ICRISAT(Bulawayo)","Zimbabwe","Stratification of SADC regional pearl millet testing sites based on grain yield performance of lines","pub","S1.5","","","restricted",,,,,,"Sequential retrospective (SeqRet) pattern analysis was used to stratify pearl millet [Pennisetum glaucum] testing sites according to their similarity of line-yield differentiation using grain yield data from 90 multi-environment trials (METs) conducted in the Southern African Development Community (SADC) region. The METs, conducted across 25 sites over 9 years were split into two sets: Set 1 (1989/90-1992/93) included introductory genetic materials, and Set 2 (1994/95-1998/99) included advanced genetic materials. Site stratification analysis from Set 1 and Set 2 partitioned the testing sites into six and five groups with R2-values of 76 and 79%, respectively. Analysis of the cumulative dataset (1989/90-1998/99) clustered the 25 sites into six groups with R2=76% and captured the major patterns of site similarities in Set 1 and Set 2. Based on our experience from running multi-year METs in the SADC region, the cumulative dataset was more informative in judging the relevance of site-stratification results. SeqRet pattern analysis, exploiting available highly imbalanced historical MET data, provided an objective basis for stratifying the test-sites to facilitate selection of a few representative test-sites for future testing of lines. The results from cumulative dataset suggest that future line testing could be restricted to a few sites picked from within each of the identified site-groups.","2002",,,"Field Crops Research","73","2-3","Elsevier",,"143-151",,,,,,,,,,,"TRUE",,,,,,,,"","http://dx.doi.org/10.1016/S0378-4290(01)00191-5","http://scholar.google.co.in/scholar?as_q=%09Stratification+of+SADC+regional+pearl+millet+testing+sites+based+on+grain+yield+performance+of+lines&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as","author",,"Governments of SADC countries","",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,,,,
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