The Yield of Crops in Relation to Drought
2013; Linguagem: Inglês
10.2134/1994.physiologyanddetermination.c23
ISSN2691-2341
Autores Tópico(s)Crop Yield and Soil Fertility
ResumoChapter 13A The Yield of Crops in Relation to Drought J. B. Passioura, J. B. Passioura CSIRO, Canberra, AustraliaSearch for more papers by this author J. B. Passioura, J. B. Passioura CSIRO, Canberra, AustraliaSearch for more papers by this author Book Editor(s):K. J. Boote, K. J. BooteSearch for more papers by this authorJ. M. Bennett, J. M. BennettSearch for more papers by this authorT. R. Sinclair, T. R. SinclairSearch for more papers by this authorG. M. Paulsen, G. M. PaulsenSearch for more papers by this author First published: 01 October 1994 https://doi.org/10.2134/1994.physiologyanddetermination.c23Citations: 11Book Series:ASA, CSSA, and SSSA Books AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onEmailFacebookTwitterLinkedInRedditWechat Summary This chapter discusses responses of plants to drought that have evident effects on yield, and describes behavior that predisposes a plant to yield well in a drought-prone environment but that is manifest before any drought occurs. There are four main aspects of the behavior of plants in relation to drought that can readily be linked with yield via these components: the modulation of leaf area, the modulation of root growth, the efficiency with which the leaves exchange water for CO2 , and the processes involved in setting and filling the seeds. 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