Root mass and depth, stolons and roots formed on stolons in four cultivars of potato under water stress

Lahlou, Ouiam; Ledent, Jean‐François

doi:10.1016/j.eja.2004.02.004

Cited by 91 publications

(88 citation statements)

References 23 publications

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“…The surface area of the root system varied similarly and cultivars differed in the diameter and the dry weight of the roots. In our study, the dry weight of roots was 5.06-8.56 g. Lahlou and Ledent (2005) found that root dry weight ranged from 1.1-11.8 g. Głuska (2004) and Rykaczewska (2015) obtained similar results.…”

Section: Discussionsupporting

confidence: 74%

Differences in size and architecture of the potato cultivars root system and their tolerance to drought stress

Zarzyńska¹,

Boguszewska-Mańkowska²,

Nosalewicz³

2017

Plant Soil Environ.

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Drought can cause substantial yield losses, particularly for crops with shallow root systems, such as potato (Solanum tuberosum). This study tested whether root system architecture could affect potato yield under drought conditions. The following parameters of the roots were measured: depth range, total length, total area, surface area, average diameter, and total dry weight of the root system. These parameters in soil layers were also measured at different depths. Five potato cultivars from a group of mid-early cultivars were examined in this study. The same cultivars were tested under two conditions: control with optimal irrigation and drought stress treatment without irrigation for three weeks after the end of tuberization to check the tuber yield. Significant differences were observed among cultivars in the size of the root system and its architecture. The biggest differences in the individual layers of soil profile related to the diameter of the root, the root length, and the surface area. Also a relationship between the size of the root system and yield of tubers was found. The strongest correlations involved the root length and the root surface area with the decrease in tuber yield under the drought, then the dry root mass with the decrease in yield. These correlations were negative: the higher the value of the parameter, the smaller the observed decrease in yield. This showed a relationship between root length and mass with the decrease of yield; this relationship was stronger for roots in deeper layers than in the shallowest layers. Therefore, this study indicates that breeding potato cultivars with deep root systems might improve tuber yields under drought conditions.

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Section: Discussionsupporting

confidence: 74%

Differences in size and architecture of the potato cultivars root system and their tolerance to drought stress

Zarzyńska¹,

Boguszewska-Mańkowska²,

Nosalewicz³

2017

Plant Soil Environ.

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“…These results are in agreement with those obtained by Lahlou and Ledent [19]. CH47/04 showed larger root length with thickened roots, decrease in fresh and dry weights at both field capacity of 70% and 35%.…”

Section: Vascular Tissuesupporting

confidence: 83%

“…1). A marked reduction in root length of chickpea (Cicer arietinum L.) cultivars was noticed under drought as shown in potato [19] and chickpea (Cicer arietinum L.) [20,21]. In other studies, root fresh and dry weights were significantly reduced in chickpea [22][23][24], peanut [25], mung bean [26], white clover [27] and Erythrina seedling [28].…”

Section: Root Morphologymentioning

confidence: 99%

Morpho-Anatomical Changes in Roots of Chickpea (Cicer arietinum L.) under Drought Stress Condition

Saeed¹,

Maqbool²,

Haseeb³

et al. 2016

JAST-B

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Chickpea (Cicer arietinum L.) is a crop cultivated in semi-arid and rainfed areas of Pakistan and it experiences terminal drought stress. In this paper, the morpho-anatomical study regarding roots of chickpea was carried out to investigate the drought adaptation strategies. Twelve cultivars of chickpea were grown in pots under drought stress of 70% and 35% field capacity in addition to control (100%). Root segments of mature chickpea plants were sectioned in 2 cm from root-shoot junction and used for making transverse sections. The development of sleeve and stele tissues and their proportion were markedly influenced by moisture availability to the root system. Roots length, fresh and dry weight, and number of secondary roots were decreased under field capacity of 70% and 35% as compared to control in 12 cultivars of chickpea. Root epidermis and cortex of CH47/04 consisted of cells with thickened walls and with 2-3 cell layers of sclerenchymatous cells below the epidermis. Increased number of medullary rays and high vascular region was observed in cultivars CH120/04, CH47/04, CH587/05 and CH87/02. Anatomical studies showed that CH47/04 was highly tolerant among 12 cultivars of chickpea, while CH587/05 and CH87/02 behaved moderately under both levels of drought stress (70% and 35% field capacity).

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“…Moreover, the water potential values of MS media in the present study were consistent with that reported by Gopal and Iwama (2007) who concluded the possibility to use the in vitro system as an alternative to field evaluations for studying the general effect of water-stress on plant growth and development. Drought is known to adversely affect plant height and weight (Deblonde and Ledent 2001;Tourneux et al 2003;Lahlou and Ledent 2005). Studies have shown that the first morphological effect of drought is leaf size reduction (Jefferies and MacKerron 1987), which results in lessened photosynthesis and reduction in dry matter accumulation in tubers (Jefferies 1993;Deblonde et al 1999).…”

Section: Discussionmentioning

confidence: 99%

In vitro screening of potato lines for drought tolerance

Al-Biski

Najla

Sanoubar

et al. 2012

Physiol Mol Biol Plants

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Fresh water resources are limited and their use in agricultural production is expected to come under increasing constraints. Eighteen Syrian lines of potato (Solanum tuberosum L.) were screened for drought tolerance by measuring aerial and root growth in vitro. Drought stress was evaluated by adding 2, 4, 6, 8 and 10 % (w:v) of sorbitol to MurashigeSkoog medium and compared to 0 % for the control. Water potential of media ranged from −0.58 MPa to −2.5 MPa. Water-stress in culture adversely affected plant growth, and genotypes differed for their responses. Plant length and stem thickness, leaf area, root number length and thickness, and plant fresh and dry weights and plant water content were measured and all decreased due to drought. Grouping lines by cluster analysis for response to drought resulted in: (1) a tolerant group of six lines, (2) a moderately tolerant group of seven lines, and (3) a susceptible group of five lines. The variation in germplasm indicated that potato varieties can be developed for production under some levels of drought.

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Root mass and depth, stolons and roots formed on stolons in four cultivars of potato under water stress

Cited by 91 publications

References 23 publications

Differences in size and architecture of the potato cultivars root system and their tolerance to drought stress

Differences in size and architecture of the potato cultivars root system and their tolerance to drought stress

Morpho-Anatomical Changes in Roots of Chickpea (Cicer arietinum L.) under Drought Stress Condition

In vitro screening of potato lines for drought tolerance

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