scholarly journals Features of the root system of pear trees on different rootstocks in Crimea

2021 ◽  
pp. 248-252
Author(s):  
А.И. Сотник
Keyword(s):  
Root System ◽  
System Development ◽  
Soil Layer ◽  
Basal Area ◽  
Root System Development ◽  
Moderate Growth ◽  
Study Results ◽  
Pear Trees ◽  
Growing Conditions ◽  
Old Trees

В статье представлены результаты исследований состояния насаждений шести сортов груши (Изумрудная, Изюминка Крыма, Мария, Мрия, Отечественная, Таврическая), привитых на три подвоя крымской селекции (КА 53, КА 86, КА 92) в сравнении с контролем (Бере Арданпон /ВА 29) в зависимости от архитектоники корневой системы. Анализ полученных данных дает возможность классифицировать деревья по силе роста в зависимости от подвоя и сорта. Наиболее рослыми являются комбинации сортов Изумрудная, Бере Арданпон, Отечественная на подвоях ВА 29, КА 53 и КА 86. Сорта Изюминка Крыма и Мария, а также подвой КА 92, относятся к группе слаборослых, что подтверждается биометрическими показателями. Площадь сечения штамба 11-летних деревьев в группе сильнорослых сорто-подвойных комбинаций составляет 79,2-81,1 см, у слаборослых - 64,2-68.8 см. На силу роста, помимо указанных факторов, влияет также развитие корневой системы. Цель исследований - установление зависимости роста и развития деревьев груши на разных подвоях от состояния корневой системы. Основным отличием подвоев крымской селекции является хорошо развитая корневая система. Результаты раскопки корней всех сортов на ВА 29 показывают, что основная их масса расположена на глубине 10-40см. Отдельные корни уходят вглубь до 1,7-2,0 м. Основная корневая система подвоев серии КА занимает почвенные горизонты 20-65 см, проникая в глубину до 2,5 м. Более развитая корневая система деревьев груши повышает также засухо- и хлорозоустойчивость деревьев, увеличивает их якорность и повышает продуктивность. Следовательно, при закладке интенсивного сада груши необходимо подбирать сорто-подвойные комбинации, устойчивые к био- и абиотическим условиям произрастания и обладающие умеренной силой роста. Выбор перспективных подвоев для интенсивного садоводства предусматривает необходимость изучения структурно-морфологических особенностей корневой системы. The article presents the study results of stand condition of plantings of six pear varieties (‘Izumrudnaya’, ‘Izyuminka Kryma’, ‘Maria’, ‘Mriya’, ‘Otechestvennaya’, ‘Tavricheskaya’), grafted on three rootstocks of Crimean selection (KA 53, KA 86, KA 92) in comparison with the control (‘Bere Ardanpon’ / BA 29) depending on the root system architectonics. Analysis of the data obtained makes it possible to classify trees according to the growth power depending on the rootstock and variety. The most strongly-grown are combinations of varieties ‘Izumrudnaya’, ‘Bere Ardanpon’, ‘Otechestvennaya’ on rootstocks BA 29, KA 53 and KA 86. The varieties ‘Izyuminka Kryma’ and ‘Maria’, as well as KA 92, belong to the group of weakly-grown, as confirmed by biometric indicators. Basal area of the trunk of 11-year-old trees in the group of strongly-grown variety-rootstock combinations is 79.2-81.1 cm, in the weakly-grown group - 64.2-68.8 cm. The strength of growth, in addition to above mentioned factors, is also influenced by the root system development. The aim of the research is to establish the dependence of growth and development of pear trees using different rootstocks on the root system condition. The main difference of Crimean rootstocks is a well-developed root system. The results of digging up the roots of all varieties on BA 29 show that their basic weight is located at a depth of 10-40 cm. Separate roots go down to 1.7-2.0 m. Basic root system of KA-series rootstocks occupies soil layer of 20-65 cm, penetrating to a depth of 2.5 m. A more developed root system of pear trees also increases the drought and chlorosis resistance of trees, improves their anchoring and productivity. Consequently, when starting an intensive pear garden, it is necessary to select variety-rootstock combinations, resistant to biotic and abiotic growing conditions and having a moderate growth power. The choice of promising rootstocks for intensive gardening involves the necessity to study structural and morphological features of the root system.

scholarly journals Phyllochron, and root system development of six strawberry cultivars with different photoperiodic flowering responses

2021 ◽  
pp. 368-373
Author(s):  
José Luís Trevizan Chiomento ◽  
Ana Flávia Baccarin Ferreira ◽  
Rosiani Castoldi Costa ◽  
Nicolas Dos Santos Trentin ◽  
Thomas Dos Santos Trentin ◽  
...  
Keyword(s):  
Root System ◽  
System Development ◽  
Block Design ◽  
Southern Brazil ◽  
Root System Development ◽  
San Andreas ◽  
Randomized Block Design ◽  
Bare Root ◽  
Growing Conditions ◽  
Strawberry Cultivars

Bare-root strawberry plants produced in Patagonia accumulate more reserves in the main crown, which allows their immediate development after transplantation. Due to the dependence on these bare-root plants, Brazilian producers use early cultivars, which start the leaves emission and the flower buds differentiation in advance, since these bare-root plants do not always arrive within the estimated time for planting in southern Brazil. The objective of the work was to investigate whether six strawberry cultivars, produced in a greenhouse, differ in their phyllochron, and root system development. Six cultivars were tested, arranged in a randomized block design, with four replications. Bare-root plants were cultivated in soil in a greenhouse. The phyllochron was evaluated by counting the number of leaves, weekly, from the beginning of leaf emission (from the main crown) until the appearance of the first fruit. The roots were digitized by a scanner and the images analyzed by the WinRHIZO® software. ‘Camarosa’ cultivar was considered the earliest to start fruiting, as it had the lowest phyllochron value (69.93ºC day-1 leaf-1), while the cultivar ‘San Andreas’ was the latest (166.67ºC day-1 leaf-1). ‘Albion’ and ‘Aromas’ presented the highest total root length in relation to the other cultivars. In conclusion, the six strawberry cultivars analyzed in this study, with different photoperiodic classifications regarding flowering, differ in relation to their morphophenological performance. In the growing conditions of southern Brazil, phyllochron study indicates that ‘Camarosa’ cultivar is the earliest and ‘San Andreas’ cultivar is the latest. ‘Albion’ and ‘Aromas’ cultivars are more compact plants, with greater potential for the development of the root system.

scholarly journals Root System Distribution of Sweet Cherry Trees Grafted on Vigorous Rootstock in Molic Eutricambosoil in Northern Transylvania

2021 ◽  
Vol 78 (1) ◽  
pp. 71
Author(s):  
Zsolt JAKAB-ILYEFALVI
Keyword(s):  
Root System ◽  
Sweet Cherry ◽  
System Development ◽  
Soil Horizons ◽  
Root System Development ◽  
Old Trees ◽  
Different Soils ◽  
Cherry Trees

The type of the root system development of different species and cultivars gives valuable information for choosing of proper rootstock/scion combinations in different soils and soil horizons, the establishment of active rhizosphere where the input nutrition can give maximum results. Researches showed that cherry grafted on a vigorous rootstock in molic eutricambosoil develops a root system which is mainly horizontally spread (88-90°), in some rare cases with angles of 45°, with 5-7 strong V order roots (>80 mm) which provides good anchorage for trees. To the periphery the roots reached up to 6.5-8.5 m in the old trees and 3.5 m in the young trees. The depth of the root system achieved 2.0-2.5 m in the old trees and 1.0-1.5 m in the young trees. The highest quantity of roots were observed between 18-60 cm depth in both young and old trees.

scholarly journals Timecourse Changes in Two Different Topological Indices with Seminal Root System Development of Rice.

1996 ◽  
Vol 65 (2) ◽  
pp. 303-308 ◽  
Author(s):  
Yasuhiro IZUMI ◽  
Yasuhiro KONO ◽  
Akira YAMAUCHI ◽  
Morio IIJIMA
Keyword(s):  
Root System ◽  
System Development ◽  
Topological Indices ◽  
Seminal Root ◽  
Root System Development

The Effect of Salinity on Root Architecture in Forage Pea (Pisum sativum ssp. arvense L.)

2021 ◽  
Author(s):  
S. Acikbas ◽  
M.A. Ozyazici ◽  
H. Bektas
Keyword(s):  
Root System ◽  
Root Architecture ◽  
System Development ◽  
Shoot Biomass ◽  
Growth And Survival ◽  
Legume Crop ◽  
Root System Development ◽  
Randomized Design ◽  
Salinity Levels ◽  
Root And Shoot Biomass

Background: Plants face different abiotic stresses such as salinity that affect their normal development, growth and survival. Forage pea is an important legume crop for herbage production in ruminants. Its agronomy requires high levels of irrigation and fertilization. This study aimed to evaluate the effect of salinity on seedling root system development in forage pea under semi-hydroponics conditions.Methods: Different treatment of NaCl doses (0, 50, 100, 150, 200, 250 and 300 mM) on root architecture was investigated in two different forage pea cultivars (Livioletta and Ulubatlý) with contrasting root structures under controlled conditions. The experimental design was completely randomized design with three replications and nine plants per replication.Result: Salinity affects root and shoot development differently on these cultivars. Despite the salinity, Livioletta produced more shoot (0.71 g) and root biomass (0.30 g) compared to Ulubatlý (0.52 g and 0.25 g for Root and Shoot biomass, respectively) at 150 mM and all other salinity levels. Livioletta developed a better root system and tolerated salt to a higher dose than Ulubatlý. Understanding root system responses of forage pea cultivars may allow breeding and selecting salinity tolerant cultivars with better rooting potential.

Growth and development of Hippophae rhamnoides L. introduced in Absheron

2020 ◽  
Vol 02 (03) ◽  
pp. 35-38
Author(s):  
Kamala Arastun Sadigov ◽  
Keyword(s):  
Root System ◽  
System Development ◽  
Growth Dynamics ◽  
Climatic Conditions ◽  
Hippophae Rhamnoides ◽  
Seedling Morphology ◽  
Hippophaë Rhamnoides ◽  
Root System Development ◽  
Hippophae Rhamnoïdes L ◽  
Seed Propagation

The presented article provides seed propagation, seedling morphology and growth dynamics, root system development in connection with the introduction of Hippophae rhamnoides L. species found in our natural flora in Absheron. The study found that the species Hippophae rhamnoides L. is well adapted to the soil and climatic conditions of Absheron and can be grown in cultural conditions. Key words: Hippophae rhamnoides L., introdiction, seed, repoduction, morphology, dewelopment, root system

scholarly journals Reaction of potential guava rootstocks to Meloidogyne enterolobii

Revista CERES ◽  
2018 ◽  
Vol 65 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Fernando Marcelo Chiamolera ◽  
Antonio Baldo Geraldo Martins ◽  
Pedro Luiz Martins Soares ◽  
Tatiana Pagan Loeiro da Cunha-Chiamolera
Keyword(s):  
Root System ◽  
Fusarium Solani ◽  
Root Rot ◽  
System Development ◽  
Control Treatment ◽  
Root Knot Nematode ◽  
Second Stage ◽  
Root System Development ◽  
Meloidogyne Enterolobii ◽  
Reproduction Factor

ABSTRACT Root-knot nematode Meloidogyne enterolobii is the main phytosanitary problem of guava cultivation in Brazil. Among the strategies to manage the problem, the best prospects are in identifying or developing cultivars or rootstocks that are resistant to this nematode. To identify plants with potential as rootstocks for guava, the reaction of araçá (wild guava) to M. enterolobii was assessed in a greenhouse experiment. Seven araçá species were evaluated (Eugenia stipitata, Psidium acutangulum, P. cattleyanum ‘yellow’, P. friedrichsthalianum, P. guajava var. minor, P. guineense, and Psidium sp.). The plants were inoculated with a suspension of 3,000 eggs of M. enterolobii, using eggplant as control treatment. The parameters fresh root mass, number of eggs and second stage juveniles (J2) per root system, the reproduction factor (RF = Pf/Pi), and araçá reaction were determined during the experiment. RF of the araçá species E. stipitata, P. cattleyanum ‘yellow’, and P. friedrichsthalianum was less than one (RP < 1), therefore resistant to M. enterolobii. The araçá trees had good root system development and the susceptible plants showed many root galls, high number of eggs and J2, and Fusarium solani and Rhizoctonia solani root rot. The araçá species, P. cattleyanum ‘yellow’, P. friedrichsthalianum, and E. stipitata are resistant to M. enterolobii and can be tested as potential guava rootstocks.

scholarly journals Grasping root system development

Root Research ◽  
2013 ◽  
Vol 22 (3) ◽  
pp. 111-118
Author(s):  
Shigenori Morita ◽  
Nobuhito Sekiya ◽  
Jun Abe
Keyword(s):  
Root System ◽  
System Development ◽  
Root System Development
Sign in / Sign up

Export Citation Format

Share Document