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A comparison of minirhizotron techniques for estimating root length density in soils of different bulk densities

Titre :	A comparison of minirhizotron techniques for estimating root length density in soils of different bulk densities Ajouter au panier
Est un extrait ou un tiré à part de :	Plant and soil
Auteur(s) :	K.M. Volkmar, Auteur (et co-auteur)
Type de document :	Tiré à part
Sujets :	Longueur ; Densité ; Triticum aestivum ; Phaseolus vulgaris ; Sol ; Compactage du sol ; Blé
Résumé :	Flexible- and rigid-walled minirhizotron techniques were compared for estimating root length density of 14- to 28-day-old Pinto bean (Phaseolus vulgaris L.) and spring whet (Triticum aestivum L.) plan soil boxes under controlled environment conditions at three soil bulk densities (1.3, 1.5 and 1.7 g cm-3). The flexible-tube system consisted of bicycle inner tubes inflated inside augered access holes and removed only when measurements were taken. Rigid tubes were constructed of extruded polybutyrate plastic. In both cases tubes were oriented horizontally. Despite similar root densities for wheat and beans based on measurements obtained from soil cores, root densities estimated from both types of minirhizotron were higher in bean than in wheat in uncompacted soil [...]
Editeur(s) :	Amsterdam : Kluwer Academic Publishers
Date de publication :	1993
Format :	pp. 239-245 / graph., tabl., réf.
Note(s) :	Vol.157 n° 2
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=147224