+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

A method to measure growth in tropical woods

, : A method to measure growth in tropical woods. Journal of Agricultural Science Tokyo Nogyo Daigaku 25(1): 27-35

Tropical trees (26) with indistinct annual rings were selected from a natural forest in East Kalimantan, Indonesia. Nails were inserted into the tree trunks at breast height every 3 mo. for 1 yr. The nailing caused the growth of callus cells within the xylem tissue. With these callus cells as marks, the growth of the tree trunks was measured. In a species of Dipterocarpaceae, similar normal resin canals were produced in the cambial zone on the tangential plane corresponding to the time of nailing. By contrast, other species produced parencyma cells. The period of greatest growth was between Aug. and Oct., during the dry season. More cells with larger radial dimensions were produced at that time. Since nailing induced different effects in cell development of various species of trees, it proved to be an effective method for measuring the increasing thickness of the wood.


Other references

Capotondi, F.; Pedersoli, E.; Mahne, N.; Menk, R.H.; Passos, G.; Raimondi, L.; Svetina, C.; Sandrin, G.; Zangrando, M.; Kiskinova, M.; Bajt, S.; Barthelmess, M.; Fleckenstein, H.; Chapman, H.N.; Schulz, J.; Bach, J.; Frömter, R.; Schleitzer, S.; Müller, L.; Gutt, C.; Grübel, G., 2013: Invited article: Coherent imaging using seeded free-electron laser pulses with variable polarization: first results and research opportunities. FERMI@Elettra, the first vacuum ultraviolet and soft X-ray free-electron laser (FEL) using by default a "seeded" scheme, became operational in 2011 and has been opened to users since December 2012. The parameters of the seeded FERMI FEL...

Ruch J.V.; Karcher Djuricic V., 1973: Tooth morphogenesis and cyto differentiations in vitro effect of azetidine 2 carboxylic acid. INSERM (Institut National de la Sante et de la Recherche Medicale) Colloque 19: 109-120

Fitzgerald, R.J.; Swaisgood, H.E., 1986: An analytical high performance affinity chromatographic technique for study of the interaction of components of casein micelles. Bovine casein micelles were covalently immobilized on 200-nm pore diam., thionyl chloride-activated succinamidopropyl controlled-pore glass and also on 75-150 micro m diam. succinamidopropyl nonporous glass. Analytical high performance affinity ch...

Kiechle, F.L.; Quattrociocchi-Longe, T.M.; Brinton, D.A., 1992: Quality improvement in the laboratory assessment of in vitro fertilization. There has been a trend to use fewer laboratory tests during ovarian hyperstimulation prior to oocyte recovery, in vitro fertilization, and embryo transfer. Estradiol is routinely monitored during ovulation induction protocols. Estradiol rises stea...

N.N., S.; Tian, J.; Marziliano, P.; Wong, H-Tym., 2014: Anterior Chamber Angle Shape Analysis and Classification of Glaucoma in SS-OCT Images. Optical coherence tomography is a high resolution, rapid, and noninvasive diagnostic tool for angle closure glaucoma. In this paper, we present a new strategy for the classification of the angle closure glaucoma using morphological shape analysis...

Klein, K.E.; Wegmann, H.M.; Brüner, H., 1968: Circadian rhythm in indices of human performance, physical fitness and stress resistance. Aerospace Medicine 39(5): 512-518

Pastides, H.; Zhang, Z.; Mundt, K.A., 1996: Investigation of an occupational cluster of Bells Palsy. American Journal of Epidemiology 143(11 SUPPL ): S67

Evengård, B.; Hagi, H.; Linder, E., 1988: A filter-paper technique for the detection of IgG and IgM class schistosome-specific antibodies in an endemic area. Fingerprick blood samples were collected on filter paper from 18 adults and 8 children, from an area endemic for Schistosoma haematobium in Somalia, and extracts from the filter papers were tested for the presence of specific antibodies by ELISA (...

Ghannam, M.; Rodriguez, Y.; Ehrmann, D.; Grossman, P.M., 2013: Ankle-brachial index as a clinical tool. American Journal of Medicine 125(12): 1171-1172

Kelsen, J.; Agnholt, J.; Falborg, L.; Nielsen, J.T.; Romero, J.L.; Hoffmann, H.J.; Dahlerup, J.F., 2004: 111Indium-labelled human gut-derived T cells from healthy subjects with strong in vitro adhesion to MAdCAM-1 show no detectable homing to the gut in vivo. Integrin alpha4beta 7 is the principal gut-homing receptor, and it is assumed that expression of this specific integrin directs lymphocytes to the gut in vivo. Adoptive cellular immunotherapy against inflammatory bowel disease (IBD) may depend on...