scholarly journals Comparison of the bud morphology and shoot growth dynamics of four species of Mediterranean subshrub growing along an altitudinal gradient

2006 ◽  
Vol 151 (4) ◽  
pp. 527-539 ◽  
Author(s):  
SARA PALACIO ◽  
GABRIEL MONTSERRAT-MARTÍ
Keyword(s):  
Altitudinal Gradient ◽  
Shoot Growth ◽  
Growth Dynamics ◽  
Bud Morphology

scholarly journals Root and aerial growth in early-maturing peach trees under two crop load treatments

2017 ◽  
Vol 15 (2) ◽  
pp. e0803 ◽  
Author(s):  
Isabel Abrisqueta ◽  
Wenceslao Conejero ◽  
Lidia López-Martínez ◽  
Juan Vera ◽  
M. Carmen Ruiz Sánchez
Keyword(s):  
Root Growth ◽  
Shoot Growth ◽  
Growth Dynamics ◽  
Fruit Growth ◽  
Growth And Yield ◽  
Crop Load ◽  
Fruit Thinning ◽  
Early Maturing ◽  
Peach Trees ◽  
High Level

 The objectives of the paper were to study the pattern of root growth (measured by minirhizotrons) in relation to trunk, fruit and shoot growth and the effects of crop load on tree growth and yield in peach trees. Two crop load (commercial and low) treatments were applied in a mature early-maturing peach tree orchard growing in Mediterranean conditions. Root growth dynamics were measured using minirhizotrons during one growing season. Shoot, trunk and fruit growth were also measured. At harvest, all fruits were weighed, counted and sized. Roots grew throughout the year but at lower rates during the active fruit growth phase. Root growth was asynchronous with shoot growth, while root and trunk growth rates were highest after harvest, when the canopy was big enough to allocate the photo-assimilates to organs that would ensure the following season’s yield. Shoot and fruit growth was greater in the low crop load treatment and was accompanied by a non-significant increase in root growth. High level of fruit thinning decreased the current yield but the fruits were more marketable because of their greater size.

Spring root-zone temperature regulates root growth, nutrient uptake and shoot growth dynamics in grapevines

2015 ◽  
Vol 21 (3) ◽  
pp. 479-489 ◽  
Author(s):  
S.J. Clarke ◽  
K.J. Lamont ◽  
H.Y. Pan ◽  
L.A. Barry ◽  
A. Hall ◽  
...  
Keyword(s):  
Root Growth ◽  
Nutrient Uptake ◽  
Shoot Growth ◽  
Root Zone ◽  
Growth Dynamics ◽  
Root Zone Temperature ◽  
Zone Temperature

scholarly journals Seed germination and growth dynamics of seedlings of tree species under introduction conditions

2021 ◽  
Vol 1 (157) ◽  
pp. 123-134
Author(s):  
B. M. Magomedova
Keyword(s):  
Woody Plants ◽  
Shoot Growth ◽  
Growth Traits ◽  
Growth Dynamics ◽  
Woody Species ◽  
Climatic Conditions ◽  
Experimental Base ◽  
Genotypic Characteristics ◽  
Germination And Growth ◽  
Phenological Phases

The article presents the results of laboratory and field germination of seeds of woody species. Also, some features of the initial stages of ontogenesis of woody plants in the conditions of mountainous Dagestan are considered. It was found that under the conditions of the Tsudakhar experimental base, a significant predominance of shoot growth is observed in all types of seedlings. Comparative analysis of growth traits in dynamics revealed that different soil and climatic conditions of different altitude gradients have a significant impact on the variability of all considered morphological traits. In all species, the maximum average values of traits were noted under the conditions of the CEB, i.e., these ecological conditions are more conducive to the manifes tation of the genotypic characteristics of the studied species in comparison with the conditions of the BBB. A relationship was found between the dynamics of phenological phases and the degree of winter hardiness: the stronger the annual growth was, the greater the percentage of freezing from the total length of the seedling was observed.

scholarly journals Growth and Development of the Introduced Picea L. (Karst.) Species in the Taiga Zone (Karelia)

2021 ◽  
pp. 238-258
Author(s):  
Ivan T. Kishchenko
Keyword(s):  
Introduced Species ◽  
Picea Glauca ◽  
Native Species ◽  
Shoot Growth ◽  
Growth Dynamics ◽  
Botanical Garden ◽  
Substantial Effect ◽  
Middle Taiga ◽  
Taiga Zone ◽  
Needle Growth

The study was conducted in the Botanical Garden of Petrozavodsk State University (South Karelia, the middle taiga subzone) from April to October during 1988–2016. The following representatives of the genus Picea were investigated: four introduced species (Picea glauca (Moench) Voss [syn. P. canadensis Britt.], P. pungens Engelm. f. viridis Regel., P. obovata Ledeb., and P. mariana Britt.) and one native species (P. abies (L.) Karst.). The growth of P. abies shoots starts 1–4 weeks earlier and ends 1–3 weeks later compared to the introduced species. The earliest culmination of shoot growth is observed in P. glauca and P. obovata and the latest in P. abies. The longest shoots are formed by P. abies. The growth dynamics of shoots differs considerably between the introduced species and the native species. The dates of the beginning and the culmination of the shoot growth in the studied species are to a certain extent affected by the temperature of the air. P. abies needles begin to grow 1–2 weeks earlier than the needles of the introduced species. The earliest culmination of needle growth is observed in P. obovata and P. glauca and the latest in P. pungens. P. abies and P. pungens show the largest needle length increment, while in the other species, it is 2–4 times smaller. The longest needles are formed in P. pungens and P. abies. There is a noticeable difference in needle growth dynamics between the introduced species and the native species. The dates on which needles begin to grow are largely determined by the temperature of the air. The temperature of the air and solar radiation produce a substantial effect on the time of occurrence of most phenophases in the studied Picea species. P. pungens and P. glauca were found to be the most promising spruce species for residential landscaping and creation of artificial plant communities in Karelia

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