Effects of root restriction on growth correlations, water relations and senescence of alder seedlings

Tschaplinski, Timothy J.; Blake, Terence J.

doi:10.1111/j.1399-3054.1985.tb02331.x

Cited by 72 publications

(46 citation statements)

References 33 publications

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“…Selon rouge B une production de plants de plus fortes dimensions. Tschaplinski et Blake (1985), les parois paforks qui permettent Dans la prtsente ttude, c'est effectivement le contenant de cerner les plants en dirigeant les racines vers l'exttrieur, Whitcomb 3 500 qui possae le plus haut rapport surface 1 proinduisent un dtveloppement racinaire en amont du cernage. fondeur.…”

Section: Effets Du Repiquage Sur La Croissance Des Ch6nesunclassified

Évaluation de trois contenants pour la production de plants d'espèces feuillues de fortes dimensions

Cogliastro¹,

Halle²,

Labrecque³

et al. 1995

The Forestry Chronicle

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Trois types de contenants de diffkrents volumes (Polymos 15,Three types of containers of different volumes (Polymos 15, 700 cm3; Polymos 1 2 , l 000 cm3; WhitcombMD, 3 500 cm3) ont 700 cm3; Polymos 12,1,000 cm3; whitcomb@, 3,500 cm3) were 6tk mis B l'essai pour produire des plants d'arbres feuillus de fortes tested to produce large hardwood seedlings. Studies of growth and dimensions. L'ktude des rksultats de croissance et du dkvelopperoot development of three species, white ash (Frauinus americum ment racinaire de trois espbces, frsne blanc (Fruxinus americana L.), bur oak (Quercus macrocarpa Michx.) and northern red oak L.), chCne B gros fruits (Quercus macrocarpa Michx.) et ch&ne (Quercus rubra L.) were used to assess containers after two rouge (Quercus rubra L.), a servi B l'6valuation des contenants growing seasons in an unheated plastic shelter. The mean height aprbs deux ans de croissance. La hauteur moyenne des plants proof seedlings increased with the volume of the containers. The total duits sous I'abri d'un tunnel de plastique non-chauffk, &it plus dry mass of seedlings at 55 cm in height was more important in Blevke pour les contenants de plus grand volume. La masse the larger container; the total root mass and the proportion of sec&he totale des plants ayant aeint une hauteur de 55 a augment& ondary roots were higher in the container of greater volume. For aussi avec Ie volume du contenant; la masse racinaire et la prothe two species of oak, the 3,500 cm3 container produced duction de racines secondaires Ctaient plus &levees dans le plus seedlings with a taproot showing a number of deviations when grand contenant. Pour les deux espbces de chsnes, le contenant touching the bottom of the container. White ash, a species with de 3 500 cm3 a produit des plants dent la racine pivotante presena fibrous root system, showed a higher deviation index in the smalltait de nombreuses dkviations induites au fond du contenant. Le er containers. The openings on the sides of the square-shaped fiene, dent le dBveloppement racinaire est fascicu16 montrait un Whitcomb@ containers were effective for the air-pruning of secindice de dkviation plus Clevk dans les contenants de plus faible o n d~ lateral roots of @ a with a taproot and their volume aUowed volume. Les ouvertures lathales des contenants carrks du type for an important root miss. However, the flat bottom with openWhitcomb ant permis de bien cemer les racines secondaires des ings at each of the four comers did not prevent deviation of the es@ces B racine pivotante. Le volume de la cavite a favoris6 forte-Proot. IntroductionDepuis plusieurs anntes, diverses mtthodes de culture ont Ctt exptrimenttes afin de maximiser la production de plants forestiers de qualit6 (Hathaway et Whitcomb 1977;Tinus 1980;Klingaman et King 1983; Whitcomb 1984;Labrecque et Popovich 1987,1988 Gingras 1993). La production en contenant comporte plusieurs avantages, le principal Ctant qu'il conduit B l'ttablissement d'un systkme racinaire prottgt qui se dtveloppe avec un minimum de contrain...

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Section: Effets Du Repiquage Sur La Croissance Des Ch6nesunclassified

Évaluation de trois contenants pour la production de plants d'espèces feuillues de fortes dimensions

Cogliastro¹,

Halle²,

Labrecque³

et al. 1995

The Forestry Chronicle

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“…Wang et al (2001) reported that water stress occurred almost every day in plants subjected to root restriction, because the amount of available water was reduced. Several reports have suggested that the reduction in shoot growth due to root restriction is partly attributed to disturbance of the internal water relations (Tschaplinski and Blake, 1985;Arp, 1991). Garg et al (2001) reported that increasing water stress progressively decreased plant growth potential, leaf area, net photosynthetic rate and nitrate reductase activity.…”

Section: Discussionmentioning

confidence: 99%

Effect of root restriction on vegetative growth and leaf anatomy of Kyoho grapevines cultivar

Xie¹,

Guo²,

Cao³

2013

Afr. J. Agric. Res.

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The effects of root restriction on leaf and shoot growth and leaf anatomy of grape were investigated. Root restriction delayed leaf appearance, decreased leaf growth and reduced the rate of leaf expansion during all stage of berry development. Shoot growth of root-restricted vines was also reduced, with the length and thickness of shoots being lower than those of the control. Root restriction also induced adaptive changes in the leaf anatomy. Somata density of leaves from root-restricted vines was higher than that of controls, but the size of the stomata was smaller. The thickness of the leaf, cuticle, palisade layer, spongy mesophyll, and leaf structure tense ratio (CTR) were increased, however, the leaf tissue loose ratio (SR) and the size of guard cells were decreased. In conclusion, our results suggest that root restriction not only reduces growth of vegetative organ, but also alters their anatomy. These changes may be one of the reasons that change the physiological functions of the leaf.

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“…Green-house studies concerning the effects of rooting depth on tree growth have mostly focused on depth restriction imposed by the presence of a compacted layer on the growing medium (e.g., Misra and Gibbons 1996) or by reduced pot size (e.g., Tschaplinski and Blake 1985). In the first case, depth restriction is not absolute and depends on the ability of the root system to grow into the compacted layer.…”

Section: Introductionmentioning

confidence: 99%

Initial growth of Brazilian pine (Araucaria angustifolia) under equal soil volumes but contrasting rooting depths

Korndörfer

Mosena

Dillenburg

2008

Trees

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Araucaria angustifolia is a critically endangered tall tree species of valuable wood, and field observations led to the suggestion that limitations imposed to the vertical growth of its tap root system greatly restrict the height of mature individuals. However, experimental studies dealing with the effects of soil depth on the species growth are mostly lacking. This study evaluated and compared the growth responses of young plants of A. angustifolia to distinct rooting depths but same soil volumes. Seeds were planted in pots of different heights and diameters, all containing 3 liters of soil mixture. Plants were submitted to four available rooting depths: 65 (T1), 35 (T2), 20 (T3), and 10 (T4) cm. There were eight experimental units in each treatment, arranged in a randomized complete block design, each block containing two units per treatment. Contrary to what was expected, the T3 and T4 plants had accumulated more mass and attained the same height as the other two groups, after a 10-month growth period in a green house. Those plants also had thicker stems, longer shoot branches, and thicker and longer lateral roots, which were interpreted as compensatory responses to increase plant anchorage and stability. The inverse relationship between rooting depth and plant mass was attributed to a downregulation of shoot growth because or restricted lateral space and/or poor soil aeration of the longer and narrower pots. This experiment allowed us to demonstrate that is not the possibility of the tap root to grow deep into the soil that ensures a better growth to plants of A. angustifolia: provided that the offer of soil volume and resources are the same, the vertical extension of the tap root does not result in greater growth of the plants. In fact, much greater growth impairment is expected from lateral than from vertical restriction to root growth.

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Effects of root restriction on growth correlations, water relations and senescence of alder seedlings

Cited by 72 publications

References 33 publications

Évaluation de trois contenants pour la production de plants d'espèces feuillues de fortes dimensions

Évaluation de trois contenants pour la production de plants d'espèces feuillues de fortes dimensions

Effect of root restriction on vegetative growth and leaf anatomy of Kyoho grapevines cultivar

Initial growth of Brazilian pine (Araucaria angustifolia) under equal soil volumes but contrasting rooting depths

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