Effects of Root Restriction, Root Pruning and 6-Benzylaminopurine on the Growth of Peach Seedlings

Richards, D.; Rowe, R. N.

doi:10.1093/oxfordjournals.aob.a085347

Cited by 140 publications

(99 citation statements)

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“…Plants growing in small containers are typically much smaller than those growing in large, even when they have seemingly adequate supplies of water and nutrients (Richards & Rowe 1977;Peterson et al . 1984;Körner, Pelaez Menendez-Riedl & John 1989;Ismail & Davies 1998).…”

Section: The Bonsai Effectmentioning

confidence: 99%

‘Soil conditions and plant growth’

Passioura

2002

Plant Cell & Environment

334

179

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Plants can respond to soil conditions in ways that can not readily be explained in terms of the ability of the roots to take up water and nutrients. Roots may sense difficult conditions in the soil and thence send inhibitory signals to the shoots which harden the plants against the consequences of a deteriorating or restrictive environment, especially if the plants' water supply is at risk. Generally, this behaviour can be interpreted as feedforward responses to the soil becoming too dry or too hard, or to the available soil volume being very small as with bonsai plants, or to roots' becoming infected with pathogens. However, soil that is too soft or in which the roots are forced to grow in very large pores can also induce large conservative responses, the significance of which is unclear. The inhibitory signals may affect stomatal conductance, cell expansion, cell division and the rate of leaf appearance. Their nature is still under debate, and the debate is becoming increasingly complex, which probably signifies that a network of hormonal and other responses is involved in attuning the growth and development of a plant to its environment.

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Section: The Bonsai Effectmentioning

confidence: 99%

‘Soil conditions and plant growth’

Passioura

2002

Plant Cell & Environment

334

179

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“…For example, root restriction might alter plant water balance and consequently affect leaf growth (Hameed et al 1987;Peterson et al 1991). It has also been proposed that the reduction of plant growth under root restriction may be caused by a decrease in the synthesis and translocation of growth substances from the roots (Richards & Rowe 1977;Carmi & Heuer 1981 ;Ismail & Davies 1998). Dubik et al (1990) suggested that root restriction by either compaction or containerisation is alike in inducing similar plant responses.…”

Section: Introductionmentioning

confidence: 99%

Growth, yield, and water use of okra (Abelmoschus esculentus) and eggplant (Solanum melongena) as influenced by rooting volume

Kurunç¹,

Ünlükara

2009

New Zealand Journal of Crop and Horticultural Science

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Many experiments are conducted in simulated confined spaces to provide controlled environments where plants are grown in pots with limited rooting volume to characterise fundamental physiological responses of plants to stress conditions such as soil water, soil salinity, irrigation water salinity, and plant nutrition. However, rooting volume in the pots can have a limiting effect on overall plant growth to varying degrees. This study was undertaken to quantify the effects of widely differing rooting volume on growth, yield, and water use of eggplant (Solanum melongena) and okra (Abelmoschus esculentus). Eggplant and okra experiments were conducted similarly, but as separate experiments. Both plants were grown in 3.6-litre (P1), 16-litre (P2), 36-litre (P3), and 52-litre (P4) pots. For eggplant and okra, evapotranspiration (ET) and all of the growth parameters including plant height, stem diameter, root and vegetative dry weight, root length, number of branches and fruit, and fruit yield significantly increased with increasing rooting volume. Pot volume started to affect plant height and ET after 3 weeks from transplanting. For both experiments, the highest yield and the highest yield based water-use efficiency (WUE yield ) were obtained from the P4 and P3 treatments, respectively. The highest WUE based on total biomass (WUE biomass ) was obtained from the P4 and P3 treatment of eggplant and okra, respectively. Both experiments exhibited similar morphological changes such as decreases in plant height, stem diameter, branching, root and vegetative dry weight, and root length to root restriction. As a result of this study it can be concluded that a pot size of 36 litres (P3) may be enough for okra growth, but even a 52-litre (P4) pot size may not provide unrestricted rooting volume for eggplant growth.

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“…Garg et al (2001) reported that increasing water stress progressively decreased plant growth potential, leaf area, net photosynthetic rate and nitrate reductase activity. It has been reported that root restriction reduced the number of leaves, total leaf area, and shoot initiation in peach (Richards and Rowe, 1977). Leaf growth was the most sensitive process to water stress (Dry and Loveys, 1998).…”

Section: Discussionmentioning

confidence: 96%

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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Effects of Root Restriction, Root Pruning and 6-Benzylaminopurine on the Growth of Peach Seedlings

Cited by 140 publications

References 0 publications

‘Soil conditions and plant growth’

‘Soil conditions and plant growth’

Growth, yield, and water use of okra (Abelmoschus esculentus) and eggplant (Solanum melongena) as influenced by rooting volume

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

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