Which factors most influence heartwood distribution and radial growth in plantation teak?

AbstractHere we report a nanoparticulate route to Y2O3 nanofibers (~50 nm in diameter and a few micrometers in length) and for the radial growth of ZnS spheres (200-800 nm diameter). Well-defined higher order structures are developed upon thermostatically aging the dispersions of monomeric nanocrystals. The shapes of the “macromolecules„ are correlated to primary monomeric nanocrystallites, the growing time and temperature, and surfactant templating agents. It is anticipated that this approach should inspire fabrication of nanoparticulate structures by using primary nanoparticles as monomers.

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DENDROCHRONOLOGICAL RESEARCHES IN ARTIFICIAL PLANTINGS OF NUR-SULTAN CITY

STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the frame of the XXIII Agribusiness Forum of the South of Russia and the Exhibition «Interagromash» Volume 1 ◽

10.23947/interagro.2020.1.564-566 ◽

2020 ◽

Author(s):

A N. Kabanov ◽

◽

S.A. Kabanova ◽

Keyword(s):

Pinus Sylvestris ◽

Radial Growth ◽

Climatic Conditions ◽

Solar Insolation ◽

Dendrochronological Analysis ◽

Different Ages ◽

Green Zone

Dendrochronological analysis was carried out in forest cultures of Pinus sylvestris of different ages growing in the green zone of Nur-Sultan city. It was found that the value of the annual radial growth is subject to a cycle with a period of 10-11 years. This is due to climatic conditions, in particular, with periods of solar insolation, which is confirmed by researches of other authors.

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PERTUMBUHAN LINGKARAN POHON JATI PADA DUA SISTEM KULTUR BERBEDA DI JAWA TIMUR

Jurnal Natural ◽

10.30862/jn.v6i2.683 ◽

2008 ◽

Vol 6 (2) ◽

Author(s):

Iriwi Louisa S. Sinon

Keyword(s):

Tree Ring ◽

Tectona Grandis ◽

Annual Growth ◽

Natural Growth ◽

Growth Rings ◽

Climate Effect ◽

Tropical Regions ◽

Annual Growth Rings ◽

Chronological Sequence ◽

Plantation Teak

<p><em>Study dendrochronology or tree-ring dating is defined as the study of chronological sequence of annual growth rings in trees. Teak (Tectona grandis) is one of various tree species that has been identified for the use of tree-ring studies in tropical regions. Teak is found to be suitable for dendrochronology as it is long-lived and develops defined annual growth rings. In Java, teak cans growth naturally or intensively in plantation. The two silviculture conditions will give different sensitivity on climate effect. Therefore, the effect of silviculturer will on natural teak and plantation teak in Saradan, Madiun, and East Java. As a part of the study, ten core samples from natural- growth teak were measured. The samples of growth rings is spanned from 1832 – 2004. Using the COFECHA program, the correlation of the samples (r) was found to be 0.44 point, which is satisfactory to the standard used in dendrochronology. Thus, from this study it can be concluded that natural teak could still be used in dendrochronology, although the sensitivity are not as high as plantation teak. </em></p>

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Radial Growth Process of Picea asperata and Its Response to Gap Model Thinning Within the Single Spruce Plantation at the Western Sichuan, China

Chinese Journal of Appplied Environmental Biology ◽

10.3724/sp.j.1145.2013.00262 ◽

2013 ◽

Vol 19 (2) ◽

pp. 262-271 ◽

Cited By ~ 1

Author(s):

Fu XING ◽

Weikai BAO ◽

Xueyong PANG ◽

Xiaoli YAN ◽

Xin LIU

Keyword(s):

Radial Growth ◽

Growth Process ◽

Gap Model ◽

Western Sichuan ◽

Picea Asperata

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Dynamics of stem radial growth of Picea meyeri during the growing season at the treeline of Luya Mountain, China

Chinese Journal of Plant Ecology ◽

10.3724/sp.j.1258.2012.00956 ◽

2013 ◽

Vol 36 (9) ◽

pp. 956-964 ◽

Cited By ~ 3

Author(s):

Man-Yu DONG ◽

Yuan JIANG ◽

Hao-Chun YANG ◽

Ming-Chang WANG ◽

Wen-Tao ZHANG ◽

...

Keyword(s):

Radial Growth ◽

Growing Season

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Inhibition of Fungal Growth by Macerated Plant Tissues in a Closed Environment

HortScience ◽

10.21273/hortsci.33.3.476e ◽

1998 ◽

Vol 33 (3) ◽

pp. 476e-476

Author(s):

Craig S. Charron ◽

Catherine O. Chardonnet ◽

Carl E. Sams

Keyword(s):

Radial Growth ◽

Fungal Pathogens ◽

Solid Phase ◽

Indian Mustard ◽

Fungal Growth ◽

Allyl Isothiocyanate ◽

Pythium Ultimum ◽

Alternative Methods ◽

Gas Chromatography Mass Spectrometry ◽

Clean Air

The U.S. Clean Air Act bans the use of methyl bromide after 2001. Consequently, the development of alternative methods for control of soilborne pathogens is imperative. One alternative is to exploit the pesticidal properties of macerated tissues of Brassica spp. This study tested the potential of several Brassica spp. for control of fungal pathogens. Pythium ultimum Trow or Rhizoctonia solani Kühn plugs on potato-dextrose agar on petri dishes were sealed in 500-ml glass jars (at 22 °C) containing macerated leaves (10 g) from one of six Brassica spp. Radial growth was measured 24, 48, and 72 h after inoculation. Indian mustard (B. juncea) was the most suppressive, followed by `Florida Broadleaf' mustard (B. juncea). Volatile compounds in the jars were sampled with a solid-phase microextraction device (SPME) and identified by gas chromatography-mass spectrometry (GC-MS). Allyl isothiocyanate (AITC) comprised over 90% of the total volatiles measured from Indian mustard and `Florida Broadleaf' mustard. Isothiocyanates were detected in jars with all plants except broccoli. (Z)-3-hexenyl acetate was emitted by all plants and was the predominant volatile of `Premium Crop' broccoli (B. oleracea L. var. italica), `Michihili Jade Pagoda' Chinese cabbage (B. pekinensis), `Charmant' cabbage (B. oleracea L. var. capitata), and `Blue Scotch Curled' kale (B. oleracea L. var. viridis). To assess the influence of AITC on radial growth of P. ultimum and R. solani, AITC was added to jars to give headspace concentrations of 0.10, 0.20, and 0.30 mg·L–1 (mass of AITC per volume of headspace). Growth of both fungi was inhibited by 0.10 mg·L–1 AITC. 0.20 mg·L–1 AITC was fungicidal to P. ultimum although the highest AITC level tested (0.30 mg·L–1) did not terminate R. solani growth. These results indicate that residues from some Brassica spp. may be a viable part of a soilborne pest control strategy.

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