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dc.contributor.authorAyaz, S.en
dc.contributor.authorMcKenzie, Bruce A.en
dc.contributor.authorHill, George D.en
dc.contributor.authorMcNeil, D.en
dc.date.accessioned2008-03-20T00:50:10Z
dc.date.issued2004-02en
dc.identifier.citationAyaz, S., McKenzie, B. A., Hill, G. D., & McNeil, D. L. (2004). Variability in yield of four grain legume species in a subhumid temperate environment. I. Yields and harvest index. Journal of Agricultural Science, 142(1), 9-19.en
dc.identifier.issn0021-8596en
dc.identifier.urihttps://hdl.handle.net/10182/371
dc.description.abstractIn 1998/99 and 1999/2000, field trials were conducted to try to explain why grain legume yields and harvest index are more variable than many other crops. Treatments involved varying plant populations and sowing depths and were selected to maximize plant variability. Both yields and harvest index were variable. Total dry matter (TDM) production generally increased as plant population increased up to twice the optimum population. Increases ranged from 80 to 130% with lupins producing the highest yields of 878 and 972 g/m² of TDM in 1998/99 and 1999/2000 respectively. While plants sown at 10 cm depth produced more TDM than did plants sown at 2 cm, the difference was only 3%. Seed yields followed similar trends to TDM, with maximum yields (mean of 403 g seed/m²) produced at twice the optimum population. Crop harvest index (CHI) was quite variable and ranged from 0·31 to 0·66. Crop HI was lowest (0·43) at the lowest population and increased to 0·55 at twice the optimum plant population. In both seasons, lentil had the highest CHI and lupin the lowest. While CHI was variable there were very close relationships between seed yield and TDM which suggested that maximum seed yield depends on maximizing TDM production. The results also suggest that growers should increase population by a factor of two to obtain maximum seed yields.en
dc.format.extent9-19en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.relationThe original publication is available from - Cambridge University Press - http://hdl.handle.net/10182/371en
dc.rightsCopyright © 2004 Cambridge University Press
dc.subjectgrain legumesen
dc.subjectplant populationen
dc.subjectsowing depthen
dc.subjectseed yielden
dc.subjecttotal dry matteren
dc.subjectcrop harvest indexen
dc.subjectAgronomy & Agricultureen
dc.titleVariability in yield of four grain legume species in a subhumid temperate environment. I. Yields and harvest indexen
dc.typeJournal Article
dc.subject.marsdenFields of Research::300000 Agricultural, Veterinary and Environmental Sciences::300200 Crop and Pasture Production::300205 Agronomyen
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Agricultural Sciencesen
lu.contributor.unitVice Chancellor's Officeen
dc.relation.isPartOfThe Journal of Agricultural Scienceen
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/AGSC
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18
pubs.organisational-group/LU/Vice Chancellor's Office
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://hdl.handle.net/10182/371en
pubs.volume142en
dc.publisher.placeCambridgeen


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