Data/hora: 24/06/2024 05:43:08

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 03/07/1996
Data da última atualização: | 03/07/1996
Autoria: | KUCHENBUCH, R. O.; BARBER, S. A.
Afiliação: | Purdue University; Universitat Gottingen, FRG.
Título: | Significance of temperature and precipitation for maize root distribution in the field.
Ano de publicação: | 1988
Fonte/Imprenta: | Plant and Soil, v.106, n.1, p.9-14, 1988.
Idioma: | Inglês
Conteúdo: | Measurements of maize (Zea mays L.) root distribution with depth in the soil for nine years in a 11-year period revealed significantly different distribution patterns. Weather variations were expected to be related to the amount of roots found in each of the five 15cm soil layers. The objective of this study was to attempt to explain root distribution in the field on the basis of precipitation and temperature data for the nine growing seasons. Growing degree days (GDD), accumulated in daily increments from planting to silking, were used to describe temperature effects. Correlation were calculated for weekly time incrementsof GDD versus root length densities at silking in all soil layers. Root length density below 30cm was correlated (P=0.05) with GDD for twoweeks following planting, whereas no relation was found between GDD and root length density in the topsoil...
Palavras-Chave: | Distribuicao; Distribution; Efeito; Effect; Maize; Root; Root system.
Thesagro: | Clima; Milho; Raiz; Sistema Radicular; Zea Mays.
Thesaurus Nal: | climate.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (6650-1) - ADP - SP - -- -  -  - 1991.03948 - DIS