scholarly journals Relationships among climate, stem growth, and biomass δ 13 C in the giant saguaro cactus ( Carnegiea gigantea )

Ecosphere ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. e02498 ◽  
Author(s):  
K. R. Hultine ◽  
D. L. Dettman ◽  
D. G. Williams ◽  
R. Puente ◽  
N. B. English ◽  
...  
Keyword(s):  
Stem Growth ◽  
Carnegiea Gigantea

Evidence for the involvement of jasmonic acid in the control of the stem-growth habit of soybean plants

1991 ◽  
Vol 83 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Yasunori Koda ◽  
Koichi Yoshida ◽  
Yoshio Kikuta
Keyword(s):  
Jasmonic Acid ◽  
Growth Habit ◽  
Stem Growth ◽  
Soybean Plants

Effects of defoliation on current-year stem growth and fine root dynamics in Fraxinus mandschurica and Larix gmelinii seedlings

2014 ◽  
Vol 38 (10) ◽  
pp. 1082-1092 ◽  
Author(s):  
LI Jun-Nan ◽  
◽  
WANG Wen-Na ◽  
XIE Ling-Zhi ◽  
WANG Zheng-Quan ◽  
...  
Keyword(s):  
Fine Root ◽  
Stem Growth ◽  
Larix Gmelinii ◽  
Root Dynamics ◽  
Fine Root Dynamics

Root and Stem Growth Patterns of Young `Mauritius' Lychee Trees

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 815-818 ◽  
Author(s):  
Thomas E. Marler ◽  
Leah E. Willis
Keyword(s):  
Root Growth ◽  
Stem Growth ◽  
Growth Patterns ◽  
Extension Growth ◽  
Glass Wall ◽  
Litchi Chinensis ◽  
Root Extension ◽  
Stem Extension ◽  
Root Observation

`Mauritius' lychee (Litchi chinensis Sonn.) trees were planted in root observation chambers in July 1990 to determine the pattern of root and stem extension growth during 12 months. Root and stem lengths were measured at intervals ranging from 7 to 18 days from Aug. 1990 until Aug. 1991. During each period of active canopy growth, up to six stem tips were tagged and measured. Root growth was determined by measuring tracings of the extension of each root in a visible plane of the glass wall of the observation chambers. Stem growth was cyclic, with distinct periods of rapid extension followed by periods with no extension. In contrast, root growth was fairly continuous with only three periods of no visible root extension. Mean absolute extension rates were higher for stems than for roots. There were no consistent relationships between the timing of root and stem extension growth.

scholarly journals Modeling the Radial Stem Growth of the Pine (Pinus sylvestris L.) Forests Using the Satellite-Derived NDVI and LST (MODIS/AQUA) Data

Atmosphere ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Yulia Ivanova ◽  
Anton Kovalev ◽  
Vlad Soukhovolsky
Keyword(s):  
Land Surface ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Principal Component ◽  
Stem Growth ◽  
Forest Growth ◽  
Parabolic Approximation ◽  
New Approach ◽  
The Relationship ◽  
Tree Increment

The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year.

Initiation, Development and Anatomy of Lignotubers in Some Species of Eucalyptus

1984 ◽  
Vol 32 (4) ◽  
pp. 415 ◽  
Author(s):  
DJ Carr ◽  
R Jahnke ◽  
SGM Carr
Keyword(s):  
Analytical Study ◽  
Growth Habit ◽  
Stem Growth ◽  
Morphological Development ◽  
Alternative Pathways ◽  
Stem Wood ◽  
Initial Survey ◽  
And Performance ◽  
Lateral Fusion ◽  
Taxonomic Groups

An initial survey of the diversity of early lignotuber development in Eucalyptus and an analytical study of the anatomy of young lignotubers and the seedling stem are presented. Studies of the early stages of the morphological development of the lignotuber in 13 species, representative of five taxonomic groups, resulted in the recognition of four modes of lignotuber initiation. The importance to lignotuber formation of the presence of a suite of accessory buds, adaxial to the axillary bud, is emphasized but lignotuber initiation is not in all cases associated with these buds. Lignotuber buds are derived by branching from existing buds, ultimately from the accessory buds of the node. Following its initiation, the possibilities of later morphological development of the lignotuber are discussed. Lignotuber growth may dominate over stem growth and the lignotubers at a node may then fuse laterally to encircle the stem. Stem growth, on the other hand, may dominate over lignotuber growth and the lignotuber then appears to regress. The consequences for the growth habit of the plant of these alternative pathways of development are outlined. The wood of young lignotubers (and that of the swollen hypocotyl) is shown to be different in composition and in the sizes of its elements from that of seedling stem wood; these differences owe their origin to differences in the nature and performance of the cambia of the lignotuber and stem. In lateral fusion of the lignotubers at a node, and their upward and downwards extension over the stem, e.g. over the hypocotyl, stem cambial initials are either progressively lost or, more likely, converted to lignotuber-type initials. The possibility of the reverse process occumng in stem dominance is discussed.

scholarly journals Stem growth habit affects leaf morphology and gas exchange traits in soybean

2009 ◽  
Vol 104 (7) ◽  
pp. 1293-1299 ◽  
Author(s):  
Yu Tanaka ◽  
Tatsuhiko Shiraiwa
Keyword(s):  
Gas Exchange ◽  
Leaf Morphology ◽  
Growth Habit ◽  
Stem Growth

Photocontrol of stem growth

2001 ◽  
Vol 4 (5) ◽  
pp. 436-440 ◽  
Author(s):  
Brian M Parks ◽  
Kevin M Folta ◽  
Edgar P Spalding
Keyword(s):  
Stem Growth

Variations In Saguaro Cactus (Carnegiea gigantea) Spine Length In Wet and Dry Portions of Their Range

Madroño ◽  
2017 ◽  
Vol 64 (3) ◽  
pp. 93-98
Author(s):  
Taly Dawn Drezner
Keyword(s):  
Spine Length ◽  
Carnegiea Gigantea

The role of waterlogging and sand accretion in modulating the morphology of the dune slack plant Scirpus americanus

1990 ◽  
Vol 68 (8) ◽  
pp. 1780-1787 ◽  
Author(s):  
Denise M. Seliskar
Keyword(s):  
Sand Dune ◽  
Plant Morphology ◽  
Common Garden ◽  
Stem Growth ◽  
Reciprocal Transplant ◽  
Dune Slack ◽  
Coastal Sand Dune ◽  
Scirpus Americanus ◽  
Common Garden Experiments

Scirpus americanus Pers., a major dune slack plant in coastal sand dune ecosystems, differs in height along transects ranging between the lowest and highest elevational areas of slacks located along the coast of Delaware, U.S.A. Using reciprocal transplant and common garden experiments, results suggest that environmental factors rather than hereditary traits are more important in accounting for the differences in plant morphology expressed in the field. Dune slack plants are exposed to stresses of waterlogging and sand accretion in their natural environment. In controlled greenhouse experiments waterlogging was shown to inhibit stem growth and cause an increase in aerenchymatous tissue, whereas periodic sand deposition caused an increase in the plant height of Scirpus.

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