The Influence of Cutting Roots on the Growth and Fruiting of ‘Top Group’ Plum Cultivars

The influence of cutting roots on the growth and fruiting of ‘top group’ plum cultivars (‘Topfirst’, ‘Topfive’, ‘Toptaste’, ‘Tophit’ and ‘Topend Plus’), under the pedoclimatic conditions of Sînmihaiu Almasului, in the centre of Transylvania, Romania, in 2017-2018, was studied. The trees were grafted on Saint Julien rootstock, trained as Zahn Spindel and the orchard had a density of 1000 trees/ha. Roots were cut twice, at 40 cm distance from the trunk, in an angle of 45° and 30 cm depth, as followed: first time in the autumn during the fall of leaves, on one side of the row and the second time in spring, at blooming time, on the other side of the row. The measurements were done each year after the leaves have been fallen. There were made observations on some growth parameters (length of shoots, height of trees, trunk sectional area, the fruits and vegetative branches ratio) and fructification (average yield for 2017-2018 period, and was determined the productivity index). The treatments influenced the shoot growth, height of the trees, cumulative yield, trunk cross sectional area, the ratio of the yield to a trunk sectional area, with differences statistically assured. Root pruning reduced the average length of shoots. The longest shoots, in mean values, gave the unpruned root variant (131.0 cm). Root pruning decreased the average length of annual growth (51.1 cm). The biggest average trunk cross sectional area with the unpruned root system was obtained (58.7 cm2). Also root pruning influenced the height of the trees. The best cumulative yield was obtained in the variant of root pruning system (28.75 t/ha) followed by the unpruned root system (25.87 t/ha). Finally, root pruning increased productivity. The biggest value was registered in ‘Tophit’ in the root pruned variant (0.73 kg/cm2). The lowest value of productivity index was obtained in the unpruned system.

Download Full-text

The Influence of Rootstock on the Growth and Fructification of Cherry Cultivars in a High Density Cultivation System

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha45210826 ◽

2017 ◽

Vol 45 (2) ◽

pp. 451-457

Author(s):

Monica Diana PAL ◽

Ioana MITRE ◽

Adrian C. ASĂNICĂ ◽

Adriana F. SESTRAȘ ◽

Adrian G. PETICILĂ ◽

...

Keyword(s):

Average Length ◽

Cross Sectional Area ◽

Sectional Area ◽

Cumulative Yield ◽

Cross Sectional ◽

Cultivation System ◽

Mean Values ◽

Sweet Cherry Cultivars ◽

First Time ◽

Gisela 5

The influence of rootstock on the growth and fruiting of three sweet cherry cultivars (‘Bigarreau Burlat’, ‘Kordia’, ‘Regina’) was studied under the pedoclimatic conditions of Cluj-Napoca, Romania, in 2014-2016. The trees were grafted on Gisela 5 rootstock, trained as Zahn Spindle and the orchard had a density of 1666 trees/ha. Root were cut twice, at 50 cm distance from the trunk, in an angle of 45° and 30 cm depth, as followed: first time, to the autumn, in fall leaves time, on one side of the row and the second time, in spring, at blooming time, at the other side of the row. The rootstocks influenced height of the trees, the shoot growth, the number of long and fruiting branches, trunk cross sectional area yield and precocity, with differences statistically assured. The longest shoots, in mean values, gave the variant with cultivars grafted on Mahaleb rootstock (111.7 cm). ‘Gisela 5’ rootstock decreases the average length of annual growth (93.3 cm). Trees grafted on Mahaleb formed more long fruiting branches and fewer short fruiting branches than those grafted on ‘Gisela 5’. The biggest average trunks cross sectional area were obtained for the cultivars grafted on Mahaleb (62.1 cm2). Also rootstocks influenced the height of the trees. The cumulative yield was almost double in variants where the trees were grafted on ‘Gisela 5’ (23.2kg/tree), compared to the variants where the trees were grafted on Mahaleb (13.1 kg/tree).

Download Full-text

Formation of Annual Ring Eccentricity in Coarse Roots within the Root Cage of Pinus ponderosa Growing on Slopes

Plants ◽

10.3390/plants9020181 ◽

2020 ◽

Vol 9 (2) ◽

pp. 181 ◽

Cited By ~ 1

Author(s):

Antonio Montagnoli ◽

Bruno Lasserre ◽

Gabriella Sferra ◽

Donato Chiatante ◽

Gabriella Stefania Scippa ◽

...

Keyword(s):

Mathematical Model ◽

Root System ◽

Pinus Ponderosa ◽

Cross Sectional Area ◽

Root Segment ◽

Mechanical Forces ◽

Sectional Area ◽

Coarse Roots ◽

Cross Sectional ◽

Branching Point

The coarse roots of Pinus ponderosa included in the cage are the ones most involved in tree stability. This study explored the variations in traits, such as volume, cross-sectional area, and radius length of cage roots, and used those data to develop a mathematical model to better understand the type of forces occurring for each shallow lateral root segment belonging to different quadrants of the three-dimensional (3D) root system architecture. The pattern and intensity of these forces were modelled along the root segment from the branching point to the cage edge. Data of root cage volume in the upper 30 cm of soil showed a higher value in the downslope and windward quadrant while, at a deeper soil depth (>30 cm), we found higher values in both upslope and leeward quadrants. The analysis of radius length and the cross-sectional area of the shallow lateral roots revealed the presence of a considerable degree of eccentricity of the annual rings at the branching point and at the cage edge. This eccentricity is due to the formation of compression wood, and the eccentricity changes from the top portion at the branching point to the bottom portion at the cage edge, which we hypothesize may be a response to the variation in mechanical forces occurring in the various zones of the cage. This hypothesis is supported by a mathematical model that shows how the pattern and intensity of different types of mechanical forces are present within the various quadrants of the same root system from the taproot to the cage edge.

Download Full-text

The effect of unidirectional stem flexing on shoot and root morphology and architecture in young Pinus sylvestris trees

Canadian Journal of Forest Research ◽

10.1139/x03-139 ◽

2003 ◽

Vol 33 (11) ◽

pp. 2202-2209 ◽

Cited By ~ 14

Author(s):

Slobodan B Mickovski ◽

A Roland Ennos

Keyword(s):

Pinus Sylvestris ◽

Root System ◽

Lateral Roots ◽

Cross Sectional Area ◽

External Loading ◽

Sectional Area ◽

Lateral Loads ◽

Cross Sectional ◽

Shoot Ratio ◽

Lateral Resistance

Mechanical stresses experienced by a tree during lateral loading may cause alterations in both shoot and root growth (thigmomorphogenesis). Many of the previous studies on this subject have concentrated on shoot responses to lateral loads, while root system responses to stresses caused by external loading have been investigated only in more recent years, and even then only rarely in trees. This study presents the effect of unidirectional stem flexure of young Scots pine (Pinus sylvestris L.) on their root system morphology and architecture. Apart from the changes to the parts of the tree aboveground, unidirectional periodical flexing induced an increase in total root cross-sectional area and larger biomass allocation to the roots parallel to the plane of flexing, which in turn resulted in a larger number of major lateral roots with larger cross-sectional area in the plane of flexing. Since there were no significant differences in root to shoot ratio or the mechanical properties of wood between flexed and unflexed trees in this study, the increase in the lateral resistance in flexed trees was associated with the greater proportion of total root biomass allocated to the proximal major lateral roots, which was an adaptive mechanism for improvement of the trees' anchorage.

Download Full-text

Influence of Root Pruning and Rootstock on Growth and Performance of `Golden Delicious' Apple

HortScience ◽

10.21273/hortsci.32.4.645 ◽

1997 ◽

Vol 32 (4) ◽

pp. 645-648 ◽

Cited By ~ 8

Author(s):

D.C. Ferree ◽

M. Knee

Keyword(s):

Cell Division ◽

Size Effect ◽

Fruit Size ◽

Root Pruning ◽

Sectional Area ◽

Cumulative Yield ◽

Apple Trees ◽

Cross Sectional ◽

Golden Delicious ◽

And Performance

`Smoothee Golden Delicious' apple trees on nine rootstocks or interstems were mechanically root pruned annually for 9 years beginning the year after planting. Root pruning reduced trunk cross-sectional area (TCA) by 14% over the first 5 years and 22% in the last 4 years of the trial. Yield and fruit size were reduced by root pruning in most years with the fruit size effect obvious in June at the end of cell division. Interstem trees of MAC.9/MM.106 were larger than trees on M.9 and the following interstems: M.9/MM.106, M.9/MM.111, M.27/MM.111. Trees on seedling (SDL) rootstock were the largest and had the lowest yield per unit TCA and lower cumulative yield/tree than trees on M.7, MM.106, and MM.1ll. There was no interaction for any measure of growth or yield between root pruning and rootstock or interstem.

Download Full-text

Growth and yield of sweet cherry trees on different roostocks

International Journal of Horticultural Science ◽

10.31421/ijhs/5/3-4/55 ◽

1999 ◽

Vol 5 (3-4) ◽

Cited By ~ 2

Author(s):

K. Hrotkó ◽

L. Magyar ◽

G. Simon

Keyword(s):

Sweet Cherry ◽

Cross Sectional Area ◽

Tree Size ◽

Growth And Yield ◽

Sectional Area ◽

Cumulative Yield ◽

Cross Sectional ◽

Yield Efficiency ◽

Biennial Bearing ◽

Similar Tendency

The first nine years' results of sweet cherry rootstock trial from Hungary are presented with the aim to select efficient rootstocks for the local ecological conditions. The trials were established in 1989 with 'Van' and 'Germersdorfi óriás' cultivars on the following rootstocks: mahaleb Sainte Lucie 64, Colt, MxM 14, MxM 97. All the trees were headed at 80 cm and trained to a modified Brunner-spindle system. Tree size and yield was measured every year, and the cumulative yield efficiency was calculated. Based upon the results, mahaleb cherry SL 64 is a vigorous rootstock with good compatibility and productivity. In comparison to SL 64. the trunk cross-sectional area and canopy spread of the 'Van' trees decreased by 10-15% on rootstock Colt, while the trees of 'Germersdorfi orias' on Colt roostock grew even larger than on SL 64. Considerable 30-40 % reduction of tree size was achieved on trees grafted on M x M hybrids. Trees of `Germersdorfi óriás' showed a similar tendency without significant differences. The cumulative yield efficiency of `Van' trees after nine years was highest on rootstock MxM 14, followed by Sainte Lucie 64. Trees on Colt and MxM 97 rootstocks showed low productivity. `Germersdorfi óriás' produced the highest cumulative yield efficiency on SL 64, followed by MxM 14 and Colt and last MxM 97. Biennial bearing index of heavy cropping 'Van' trees was smaller than that of `Germersdorfi óriás'. The trees of 'Van' on MxM 97 showed higher biennial bearing index, while 'Germersdorfi orias' on different rootstocks showed similar tendency, but without significant differences. MxM 14 and MxM 97 rootstocks reduced the crotch angle of the shoots on both sweet cherry varieties which is disadvantegous to spindle training. Slight suckering (1-3/year) of the rootstocks Colt, MxM 14 and MxM 97 were observed during the first few years.

Download Full-text

Transcutaneous Suture Tip Plasty: The Technique and Outcomes

Annals of Otology Rhinology & Laryngology ◽

10.1177/0003489419843549 ◽

2019 ◽

Vol 128 (9) ◽

pp. 789-794

Author(s):

Goksel Turhal ◽

Murat Benzer ◽

Fetih Furkan Sahin ◽

Rasit Midilli ◽

Bulent Karci ◽

...

Keyword(s):

Functional Results ◽

Cross Sectional Area ◽

Acoustic Rhinometry ◽

Sectional Area ◽

Cross Sectional ◽

Facial Analysis ◽

Mean Values ◽

Tip Plasty ◽

The Mean ◽

Snot 22

Purpose: Radical resections and invasive techniques have been mostly replaced with more conservative techniques. The aim of this study was to assess the objective and the subjective functional and aesthetic outcomes of transcutaneous suture tip plasty. Methods: A total of 20 patients were included in the study. Patients were treated with transcutaneous suture tip plasty. Functional results were assessed with pre- and postoperative 6-month Sino-Nasal Outcome Test (SNOT-22) and acoustic rhinometry. The pre- and postoperative 6-month mean values of first minimal cross-sectional area (MCA1), second minimal cross-sectional area (MCA2), the distance from the tip of the probe to the first minimal cross-sectional area, the distance from the tip of the probe to the second minimal cross sectional area, nasal volume 1, and nasal volume 2 were measured. Facial analysis was made with the Rhinobase software, designed for facial analysis. Results: The mean pre- and postoperative SNOT-22 scores were 25.55 ± 6.64 and 15.70 ± 8.11, respectively ( P < .05). The mean pre- and postoperative nasolabial angles were 82.26º ± 5.69º and 101.47º ± 7.70º, respectively ( P < .05). The mean pre- and postoperative nasofrontal angles were 144.30º ± 3.81º and 138.25º ± 3.26º, respectively ( P < .05). The mean pre- and postoperative nasal length was 54.22 ± 4.62 mm and 49.95 ± 2.75 mm, respectively ( P < .05). The mean pre- and postoperative tip projection was 25.77 ± 3.64 mm and 28.40 ± 2.97 mm, respectively ( P < .05). Only postoperative MCA2 values on the right and left side were significantly different from preoperative MCA2 values ( P < .05). None of the remaining postoperative acoustic rhinometry scores significantly differed from preoperative scores. Two patients (10%) required revision at around 1 month after surgery due to suture loosening and breakage. Conclusions: Especially in the era of minimal invasive surgery, transcutaneous suspension tip plasty is promising, with rapid and reliable functional and cosmetic results. Further studies with longer follow-up durations are needed to assess the long-term outcomes of this technique.

Download Full-text

318 Interrelationships among Cumulative Yield, Scion Weight, and Trunk Cross-sectional Area of Apple Trees

HortScience ◽

10.21273/hortsci.34.3.497e ◽

1999 ◽

Vol 34 (3) ◽

pp. 497E-497

Author(s):

John A. Barden ◽

Richard P. Marini

Keyword(s):

Cross Sectional Area ◽

Sectional Area ◽

Cumulative Yield ◽

Cross Sectional ◽

Golden Delicious ◽

Term Evaluation ◽

Highly Correlated ◽

Few Data ◽

Partitioning Pattern

Productivity of perennial fruit plants depends to a sizeable degree on partitioning of assimilates between vegetative and reproductive structures. Cultivars and rootstocks modify the partitioning pattern, but there are very few data published on these relationships. The termination of a long-term evaluation of standard-growing and spur-type strains of `Delicious' and `Golden Delicious' on several dwarf and semi-dwarf rootstocks and interstocks provided an excellent opportunity to assess the relationships among cumulative yield, scion weight, and trunk cross-sectional area (TCA). Cultivars were `Goldspur' and `Smoothee' strains of `Golden Delicious' and `Redchief' and `Red Prince' strains of `Delicious'. Rootstocks and interstocks included Malling 9 (M.9), M.26, M.9/Malling Merton 106 (MM.106), M.9/MM.111, M.7, MM.106, and MM.111. Row spacing was standard at 6.1 m. Tree spacing varied with anticipated vigor and ranged from 1.8 to 5.5 m. Pruning times and weight of prunings were recorded in two years. After 18 years, trees were cut off just above the soil line and weighed. TCA and scion weight were highly correlated despite of considerable differences in degree of containment pruning required, and cumulative yields were well correlated with both TCA and scion weight. The ratio of cumulative crop weight to final scion weight decreased quadratically with increasing TCA. Pruning times and weight of prunings were somewhat better correlated with TCA in `Delicious' than in `Golden Delicious'.

Download Full-text

Tree and Fruit Growth of `Napoleon' Cherry in Response to Rootstock and Planting Method

HortScience ◽

10.21273/hortsci.25.2.176 ◽

1990 ◽

Vol 25 (2) ◽

pp. 176-178 ◽

Cited By ~ 7

Author(s):

Anita N. Miller ◽

Porter B. Lombard ◽

Melvin N. Westwood ◽

Robert L. Stebbins

Keyword(s):

Fruit Weight ◽

Cross Sectional Area ◽

Fruit Growth ◽

Sectional Area ◽

Cumulative Yield ◽

Cross Sectional ◽

Yield Efficiency ◽

Canopy Volume ◽

Tree Holes ◽

Planting Method

`Napoleon' grafted onto Colt, F/12-1, and MxM60 rootstock were planted into three types of tree holes: augered; backhoed, and backhoed plus fumigation. The auger treatment resulted in lower yields, smaller trunk cross-sectional area (TSCA), and smaller canopy volume when compared to backhoed holes. Fumigation had no significant effect. Trees on Colt rootstock were more precocious, had a smaller TCSA and canopy volume, greater cumulative yield efficiency, and, in 1987, the smallest fruit weight. The yield efficiency of Colt was the highest until 1988, when it was surpassed by MxM60, but was still similar to F/12-l. Yields were highest on trees of MxM60 in 1987 and 1988.

Download Full-text

Effects of age and breed of beef bulls on growth parameters, carcass and muscle characteristics

Animal Science ◽

10.1079/asc40710257 ◽

2005 ◽

Vol 80 (3) ◽

pp. 257-263 ◽

Cited By ~ 28

Author(s):

C. Jurie ◽

J.-F. Martin ◽

A. Listrat ◽

R. Jailler ◽

J. Culioli ◽

...

Keyword(s):

Growth Parameters ◽

Average Daily Gain ◽

Carcass Characteristics ◽

Cross Sectional Area ◽

Muscle Fibres ◽

Sectional Area ◽

Triceps Brachii ◽

Cross Sectional ◽

Insoluble Collagen ◽

Metabolic Properties

AbstractThe effects of age and breed on growth parameters, carcass and muscle characteristics of bulls, slaughtered at 15, 19 and 24 months of age, were analysed in four French breeds: Aubrac (AU), Charolais (CH), Limousin (LI), and Salers (SA). Muscle characteristics were determined in three muscles: longissimus thoracis (LT), semitendinosus (ST) and triceps brachii (TB). They included: (1) the % frequency, cross-sectional area and % area of fibre types, which were classified according to the contractile nature of the fibres and their metabolic properties (SO slow oxidative, FOG fast oxidative glycolytic and FG fast glycolytic); (2) the isocitrate dehydrogenase (ICDH) and lactate dehydrogenase (LDH) activities, representative of oxidative and glycolytic metabolism respectively; and (3) the total and insoluble collagen contents.In the four breeds, the average daily gain and the food efficiency decreased with age (P < 0·001). The carcass characteristics (muscle, fat and bone weights) increased with age (P < 0·001). The increase of muscle carcass weight with slaughter age was in parallel with the increase in cross-sectional area of individual muscle fibres. Oxidative fibre (SO and FOG) areas increased more between 15 and 24 months than glycolytic fibre (FG) area. Differences between muscles in increases in areas of muscle fibres were consistent: the increase was greater for TB than ST and LT. The muscles studied became more slow and more oxidative above 19 months of age, as evidenced by the fact that the SO % frequency (P < 0·001) and % area (P < 0·001) and ICDH activity (P < 0·05) increased, and LDH activity decreased (P < 0·01). Insoluble collagen content decreased between 15 and 19 months (P < 0·001), and both total (P < 0·01) and insoluble (P < 0·001) collagen contents increased from 19 months.So carcass characteristics were modified between 15 and 24 months, and muscle characteristics were especially modified from 19 months of age. In addition, differences in slaughter data between breeds were clear and consistent, whereas those of muscle characteristics were few and not consistent.

Download Full-text

597 Rootstock and Scion Interact to Affect Apple Tree Performance: Results from a 10-year Trial by the NC-140 Technical Committee

HortScience ◽

10.21273/hortsci.35.3.499f ◽

2000 ◽

Vol 35 (3) ◽

pp. 499F-500

Author(s):

Wesley R. Autio

Keyword(s):

Technical Committee ◽

Cross Sectional Area ◽

Sectional Area ◽

Cumulative Yield ◽

Cross Sectional ◽

Yield Efficiency ◽

Growing Seasons ◽

Golden Delicious ◽

Apple Cultivars ◽

Performance Results

In 1990, trials were established at 13 sites including `Golden Delicious', `Jonagold', `Empire', and `Rome' apple cultivars in all combinations on M.9 EMLA, B.9, Mark, O.3, and M.26 EMLA rootstocks. After 10 growing seasons, rootstock and cultivar interacted significantly to affect trunk cross-sectional area and yield efficiency but not yield per tree or survival. Generally, trunk cross-sectional area was greatest for M.26 EMLA, followed by O.3, M.9 EMLA, B.9, and Mark. However, differences between B.9 and Mark and between M.9 EMLA and O.3 varied with cultivar. B.9 was 34% to 46% larger than Mark with `Golden Delicious' and `Empire,' but they were similar for `Jonagold' and `Rome.' O.3 was 27% larger than M.9 EMLA with `Golden Delicious' and `Empire,' they were similar for `Rome', and O.3 was 12% smaller than M.9 EMLA with `Jonagold'. M.26 EMLA resulted in the greatest cumulative yield per tree, followed by O.3, M.9 EMLA, B.9, and Mark. Generally, cumulative yield efficiency (1992–99) was greatest B.9 and Mark and least for M.26 EMLA. M.9 EMLA and O.3 were similar and intermediately efficient. However, differences between B.9 and Mark and between M.9 EMLA and O.3 varied with cultivar. M.9 EMLA and O.3 were similarly efficient with `Golden Delicious', `Jonagold', and `Rome,' but M.9 EMLA was 11% more efficient than O.3 with `Empire'. B.9 and Mark were similarly efficient with `Golden Delicious' and `Jonagold', but Mark was 15% more efficient and 25% less efficient than B.9 trees with `Empire' and `Rome', respectively. Site played an important role, but survival was best for B.9 and poorest for O.3. Cooperators included: J.L. Anderson, W. Autio, J. Barden, G. Brown, R. Crassweller, P. Domoto, A. Erb, D. Ferree, A. Gaus, R. Hayden, P. Hirst, F. Morrison, C. Mullins, J. Schupp, and L. Tukey.

Download Full-text