Effect of water stress on dry matter accumulation and partitioning in pot-grown olive trees (cv Leccino and Racioppella)

Vaio, Claudio Di; Marallo, Nadia; Marino, Giulia; Caruso, Tiziano

doi:10.1016/j.scienta.2013.09.008

Cited by 18 publications

(28 citation statements)

References 20 publications

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“…Such a reduction of photoassimilates availability causes, at whole plant level, a change in the pattern of dry matter distribution: shoot growth will be inhibited while a higher quantity of assimilates will be transported and accumulated in the root system determining a higher root/shoot ratio in water stressed plants (Xiloyannis et al, 1999). Di Vaio et al (2013) mentioned that, under different water regimes applied on young pot-grown olive trees, the dry matter was affected by the water regime and cultivar. Indeed, the cv Leccino, full irrigated, displayed a greater accumulation of total dry matter and fruit dry matter, while these two parameters were greatly reduced under the other water regimes (T50 and T25).…”

Section: Effect Of Three Water Treatments On Plant Dry Matter Accumulmentioning

confidence: 99%

“…According to this assessment, we can determine the most efficient water treatment that could be suitable for Mediterranean environments subjected to water shortage conditions. Measurements were made in the green house of the Tunisian Olive tree Institute under normal day-light conditions from March,16 th to April, 21 st 2015. Three water treatments were applied which are T100% (control treatment: Daily irrigation at 100% of Available Water Content (AWC)), T50% (Daily irrigation at 50% of AWC) and T0% (Without watering).…”

Section: Introductionmentioning

confidence: 99%

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Ecophysiological Responses of Two Olive Tree Cultivars (Olea europaea L. CV Koroneiki and Chemlali) Under Three Water Treatments

Hassine¹,

Boussadia²,

Bchir³

et al. 2017

ESJ

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In this paper, our objective is to assess and compare the effects of three levels of irrigation application on the ecophysiological behavior and plant dry matter accumulation of two young olive tree cultivars Koroneiki, a promising greek cultivar, and Chemlali, the best local cultivar. According to this assessment, we can determine the most efficient water treatment that could be suitable for Mediterranean environments subjected to water shortage conditions. Measurements were made in the green house of the Tunisian Olive tree Institute under normal day-light conditions from March,16 th to April, 21 st 2015. Three water treatments were applied which are T100% (control treatment: Daily irrigation at 100% of Available Water Content (AWC)), T50% (Daily irrigation at 50% of AWC) and T0% (Without watering). The results showed that the two olive tree cultivars possess important mechanisms to overtake limited water resources. However, some striking variations existed between the two cultivars studied. Indeed, as water stress increased (T0%), Chemlali maintained longer a high midday leaf water potential compared (-4.54 MPa) to Koroneiki (-5.8 MPa). T50% treatment seems to be sufficient for both cultivars. Measurements of total Osmotic Adjustment (OA) showed that olive trees use this mechanism to create very negative leaf water potentials in order to be European Scientific Journal January 2017 edition vol.13, No.3 ISSN: 1857 -7881 (Print) e -ISSN 1857 328 able to extract water from a dry root environment. The root/shoot ratio of Chemlali plants at T50% treatment was the highest (1.08) comparatively with the other two treatments (0.70 and 0.79 for T100% and T0% AWC water treatments, respectively). This result shows that Chemlali plants valorize low quantities of water (T50%) rather than high quantities (T100%) and Koroneiki plants behave better when it is irrigated at 100% AWC. To conclude, Chemlali plants irrigated at 50% AWC, compared to Koroneiki plants, are the most suitable to tolerate water restriction conditions.

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Section: Effect Of Three Water Treatments On Plant Dry Matter Accumulmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecophysiological Responses of Two Olive Tree Cultivars (Olea europaea L. CV Koroneiki and Chemlali) Under Three Water Treatments

Hassine¹,

Boussadia²,

Bchir³

et al. 2017

ESJ

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“…Augmented irrigation generally increases olive fruit production (Moriana & Orgaz, 2003;Grattan et al, 2006;P erez-L opez et al, 2007;Hidalgo et al, 2011) and can increase oil yield (Moriana & Orgaz, 2003;Grattan et al, 2006). Among several growth and physiological parameters, irrigation affects canopy volume, shoot growth, trunk diameter, canopy and root dry weight ratios, water-use efficiency, water potential, stomatal conductance and photosynthetic capacity (Tognetti et al, 2002;Bacelar et al, 2007;Di Vaio et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Morphophysiological response of young olive trees to verticillium wilt under different surface drip irrigation regimes

Santos-Rufo

Hidalgo

et al. 2017

Plant Pathology

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The effects of irrigation on verticillium wilt in olive, in terms of morphological, biomass and physiological parameters were evaluated on pot‐grown trees maintained in the field for 3 years. Plants inoculated and noninoculated with Verticillium dahliae were irrigated to high and low range of soil water content (HR and LR) at daily (DF; about 2 days/event), weekly (WF) and daily‐weekly (DWF) drip‐irrigation frequency. Morphological parameters, relative biomass and biomass water‐use efficiency were higher at LR than at HR (with few exceptions) and at DF than at other frequencies in noninoculated and inoculated plants, but the fungus reduced those parameters by 17.0–38.5%. Lower root weight ratio, relative biomass and shoot length as area originated at HR in noninoculated plants, could be favourable to the accumulation of root infections and the amount of fungus per tissue length in inoculated plants because higher infection was known at HR. Moreover, higher aerial biomass and length promoted by irrigation at DF could prevent the more severe expression of symptoms, which occurred at WF and DWF in the presence of Verticillium. Negative correlations were found between indicated parameters and disease. Lower water stress (SΨ), and higher stomatal conductance (gs) and net photosynthesis at DF in noninoculated plants could limit the disease by improving water status, as SΨ was increased by the fungus only at WF and DWF, and gs and disease were negatively correlated. LR‐DF treatment minimized the disease and kept the growth, water‐use efficiency and physiological parameters in inoculated plants to levels close to noninoculated plants.

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“…It was found that soil water deficit significantly reduces shoot dry mass in maize but only reduces root dry mass slightly, thus it increases rootshoot ratio [15] . Other studies indicated that under drought conditions, crop growth rate and biomass production are reduced to decrease water consumption, and more biomass is transferred to the roots to maintain a higher root-shoot ratio [16][17][18][19][20][21][22][23][24][25] . It was also showed that the proportion of root dry mass does not increase under drought conditions [26] .…”

Section: Introductionmentioning

confidence: 99%

Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China

Rong¹,

Kang²,

Li³

et al. 2016

Front. Agr. Sci. Eng.

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Scientific irrigation and nitrogen management is important for agricultural production in arid areas. To quantify the effect of water and nitrogen management on yield components, biomass partitioning and harvest index (HI) of maize for seed production with plastic filmmulching, field experiments including different irrigation and N treatments were conducted in arid north-west China in 2013 and 2014. The results indicated that kernel number per plant (KN) was significantly affected by irrigation and N treatments. However, 100-kernel weight was relatively stable. Reducing irrigation quantity significantly increased stem partitioning index (PI stem ) and leaf partitioning index (PI leaf ), and decreased ear partitioning index (PI ear ) at harvest, but lowering N rate (from 500 to 100 kg N$hm -2 ) did not significantly reduce PI stem , PI leaf , and PI ear at harvest. HI was significantly reduced by reducing irrigation quantity, but not by reducing N rate. Linear relationships were found between KN, PI stem , PI leaf , PI ear at harvest and HI and evapotranspiration (ET).

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Effect of water stress on dry matter accumulation and partitioning in pot-grown olive trees (cv Leccino and Racioppella)

Cited by 18 publications

References 20 publications

Ecophysiological Responses of Two Olive Tree Cultivars (Olea europaea L. CV Koroneiki and Chemlali) Under Three Water Treatments

Ecophysiological Responses of Two Olive Tree Cultivars (Olea europaea L. CV Koroneiki and Chemlali) Under Three Water Treatments

Morphophysiological response of young olive trees to verticillium wilt under different surface drip irrigation regimes

Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China

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