RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

Bugueño, Felipe; Livellara, Nieggiorba; Varas, Fernando; Undurraga, M Pedro; Castro, Mónica; Salgado, Eduardo Gomes

doi:10.4067/s0718-16202016000100005

Cited by 6 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Also, Wonderful variety was superior to Early 116 at all different irrigation levels (stress or non-stress treatments) in the two studied seasons. Similar results was found by Bugueño et al, (2016), they reported that canopy growth of pomegranate was at a maximum when soil watering was equivalent to 100% or 130% of evapotranspiration (Etc.). On the other hand, plants subjected to water deficits have been known to modify their patterns of water absorption, transpiration, enzyme activity and photosynthesis, interfering directly with the development of new shoots and canopy expression (Nortes et al, 2005).Reducing the number of new shoots could be a phenomenon by the plants to minimize the transpiration surface hence the water lost to the atmosphere, where water deficits decrease leaf growth by slowing rates of cell division and expansion due to turgor loss and increased synthesis of abscisic acid (Tezara et al, 2002).…”

Section: Number Of Sprouted Shootssupporting

confidence: 86%

Effect of Water Stress on the Growth, Nutritional and Biochemical Status of Two Varieties of Pomegranate Seedlings

Hamdy

Khalifa

Shawer

et al. 2016

Journal of Plant Production

View full text Add to dashboard Cite

A pot experiment was carried out during successive seasons of 2015 and 2016 to investigate the effect of water stress on growth, nutritional and biochemical status of two pomegranate seedlings (Early 116 and wonderful) as in Egypt. The experimented seedlings were obtained from cuttings of two pomegranate varieties, namely Early 116 as well as wonderful. One year old pomegranate seedlings were grown in pots filled with sandy soil under greenhouse conditions, where they subjected to four water levels, 100% of field capacity (control), 80%, 60% and 40% of available water. The results indicated that the maximum values of vegetative growth parameters (shoot length, number of sprouted shoots as well as leaf surface area) were obtained when the plants were irrigated with 100 % of field capacity, while the minimum values were recorded at 40 % of available water. Wonderful seedlings gave the highest values of tested growth parameters at all water levels as compared with Early 116 variety. The decrease in irrigation water levels led to increase the hard leaf character, proline content, while leaf succulence grade and relative water content were increased by increasing the given amount of irrigation water in both pomegranate varieties. Although the two tested varieties accumulated high values of proline in their leaves when subjected to water stress (80%, 60% and 40% of available water), but the Wonderful variety accumulated high values of proline content under water stress treatments as compared with Early 166 variety. Therefore, Wonderful variety might be more tolerant to drought than Early 116 variety. The content of some macronutrients (N, P and K %) and micronutrients (Fe, Zn, Mn and Cu mg/kg) in leaves of both varieties were decreased by decreasing irrigation water levels. The highest significant values of some macro and micronutrients were found with control treatment (100 % field capacity), while the lowest values of these nutrients were found at sever water stress (40 % available water).On the other hand, Wonderful seedlings significantly showed a higher content of N, P, K, Fe, Zn, Mn and Cu under all water irrigation treatments than those of Early 116.

show abstract

Section: Number Of Sprouted Shootssupporting

confidence: 86%

Effect of Water Stress on the Growth, Nutritional and Biochemical Status of Two Varieties of Pomegranate Seedlings

Hamdy

Khalifa

Shawer

et al. 2016

Journal of Plant Production

View full text Add to dashboard Cite

show abstract

“…La curva de TCP siempre se mantuvo por encima de la curva de TCR; el valor máximo durante todo el periodo de evaluación de TCP fue de 8316,3 μm, mientras que para TCR fue de 8265 μm. TCP es mayormente afectada por el proceso de rehidratación, que depende directamente del suministro de agua del suelo e indirectamente por la demanda de evaporación del día anterior, mientras que la alta sensibilidad de TCR puede ser uno de los primeros signos de estrés hídrico y pérdida de crecimiento del tronco (Bugueño et al, 2016). TCR puede ser usada como medida de crecimiento acumulado real durante una campaña, debido a que representa el crecimiento de masa de la planta; en cambio, TCP tiene mayor influencia del riego, temperatura y humedad (Figura 2).…”

Section: Tasa De Crecimiento Del Tronco Potencial Y Realunclassified

Use of continuously recorded trunk diameter fluctuation parameters as indicators of water status and actual growth of the vine

Ayaque

Dadther

Macedo

2020

manglar

View full text Add to dashboard Cite

show abstract

“…The reason for this is that this relationship depends on the phenological phase of the crop [ 13 , 20 ], pathogen incidence [ 21 ], water stress [ 15 ], or meteorological conditions [ 22 ]. Several studies have reported on intra- and interspecies lack of consistency of dendrometry data for pomegranate [ 16 , 23 ], table grapes [ 24 ], cherries [ 25 ], kaki [ 26 ], tomatoes [ 27 ], apples [ 17 ], lemon [ 28 ], olives [ 29 ], plums [ 16 ], and almonds [ 30 ], thus producing a wide diversity of models for each species. In addition, these previous studies showed that ~40% of stem diameter fluctuations were not related to the corresponding evapotranspiration, probably because the relationship might require nonlinear models or because these fluctuations are highly dependent on ETo intensity [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Hourly Relationship between Reference Evapotranspiration and Shoot Shrinkage in Walnut Trees and Pomegranate under Deficit Irrigation

Salgado

Livellara

Chaigneau

et al. 2021

Plants

Self Cite

View full text Add to dashboard Cite

Diameter fluctuations of branches, shoots, or fruits are related to plant transpiration and water potential. In the past, several models have related dendrometric variables and evapotranspiration on a daily scale. However, trunk–branch shrinkage occurs only between dawn and midday, while evapotranspiration occurs most of the day from sunrise to sunset. Previous models have failed to incorporate this key fact. The objective of the present study was to assess the relationship of hourly daily shrinkage (HDS) between dawn and the next 4 h to the hourly reference evapotranspiration (EToh) of the same period in walnut trees and pomegranate plants under different irrigation regimes. Our data show that the relationship between EToh and HDS is much better than several previous models that included maximum daily shrinkage (MDS) and reference evapotranspiration (ETo). The novel slope analysis of the relationship between HDS versus time used here corresponds to the velocity at which the HDS occurs, which depends on the ETo intensity at that moment. This new method of analyzing this type of data calls for a revision of these models and sets a new baseline for future analysis.

show abstract

RESPONSES OF YOUNG Punica granatum PLANTS UNDER FOUR DIFFERENT WATER REGIMES

Cited by 6 publications

References 18 publications

Effect of Water Stress on the Growth, Nutritional and Biochemical Status of Two Varieties of Pomegranate Seedlings

Effect of Water Stress on the Growth, Nutritional and Biochemical Status of Two Varieties of Pomegranate Seedlings

Use of continuously recorded trunk diameter fluctuation parameters as indicators of water status and actual growth of the vine

Hourly Relationship between Reference Evapotranspiration and Shoot Shrinkage in Walnut Trees and Pomegranate under Deficit Irrigation

Contact Info

Product

Resources

About