scholarly journals Dynamics of physiological and biochemical indicators of apricot cultivars under water stress

2021 ◽  
pp. 69-76
Author(s):  
R. A. Pilkevich ◽  
I. N. Paliy ◽  
A. E. Paliy
Keyword(s):  
Water Stress ◽  
Prunus Armeniaca ◽  
Summer Drought ◽  
Research Information ◽  
Physiological And Biochemical Characteristics ◽  
The Crimea ◽  
Leaf Surface Area ◽  
Leaf Tissues ◽  
High Level ◽  
Physiological And Biochemical

The results of the study of drought resistance of 4 cultivars Prunus armeniaca Lam bred in the Nikitsky Botanical Gardens are presented. The dynamics of indicators of the water regime of leaves, the content of photosynthetic pigments and phenolic compounds in them has been studied. As a result of the research, information was obtained on the physiological and biochemical characteristics of apricot against the background of adaptation to stressful conditions created by moisture deficit during the summer drought on the Southern Coast of the Crimea. Significant differences were revealed in the ability to retain moisture during wilting, the ability to restore tissue turgor after critical dehydration, the concentration of chlorophylls and phenolic substances in the cultivars of different resistance to water stress. The promising drought-resistant genotypes 'Professor Smykov' and 'Kazachok' have been identified, demonstrating a relatively high level of water-retaining forces of leaf tissues and reparation of the leaf surface area.

Morphological, physiological, biochemical characteristics and bud success responses of myrobolan 29 c plum rootstock subjected to water stress

2016 ◽  
Vol 96 (3) ◽  
pp. 485-493 ◽  
Author(s):  
Ibrahim Bolat ◽  
Murat Dikilitas ◽  
Ali Ikinci ◽  
Sezai Ercisli ◽  
Tahsin Tonkaz
Keyword(s):  
Water Stress ◽  
Shoot Length ◽  
Cross Sectional Area ◽  
Pot Experiment ◽  
Sectional Area ◽  
Cross Sectional ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Stress Levels ◽  
Physiological And Biochemical

Water stress treatments on some morphological, biomass, physiological, biochemical characteristics and budding success of apricot and plum cultivars/Myrobolan 29 C plum rootstock have been studied in a pot-experiment trial. Three different water stress levels (control-100 %, medium-75 %, and severe-50 % of the pot capacity) were applied. The results showed that measured morphological, biomass, physiological and biochemical characteristics as well as budding success of cultivars on the rootstocks were affected by water stress. Water stress, both moderate and severe, significantly decreased the relative shoot length, diameter and shoot stem cross sectional area, plant total fresh and dry weights. Increases in water stress led to increases in peroxidase activities, phenol and proline contents in plum rootstock. Increases in water stress also resulted in reduction in budding success in both Formosa (plum cv)/Myrobolan 29 C (90.00 % and 48.33 %) and San Castrese (apricot cv)/Myrobolan 29 C (87.50 % and 42.83 %).

scholarly journals The Effect of Water Stress on Some Morphological, Physiological, and Biochemical Characteristics and Bud Success on Apple and Quince Rootstocks

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ibrahim Bolat ◽  
Murat Dikilitas ◽  
Sezai Ercisli ◽  
Ali Ikinci ◽  
Tahsin Tonkaz
Keyword(s):  
Water Stress ◽  
Shoot Length ◽  
Biochemical Characteristics ◽  
Stress Control ◽  
Physiological And Biochemical Characteristics ◽  
Relative Water ◽  
Leaf Relative Water Content ◽  
The Impact ◽  
Santa Maria ◽  
Physiological And Biochemical

The effects of different water stress (control, medium, and severe) on some morphological, physiological, and biochemical characteristics and bud success of M9 apple and MA quince rootstocks were determined. The results showed that water stress significantly affected most morphological, physiological, and biochemical characteristics as well as budding success on the both rootstocks. The increasing water stress decreased the relative shoot length, diameter, and plant total fresh and dry weights. Leaf relative water content and chlorophyll index decreased while electrolyte leakage increased with the increase of water stress in both rootstocks. An increase in water stress also resulted in reduction in budding success in Vista Bella/M9 (79.33% and 46.67%) and Santa Maria/MA (70.33% and 15.33%) combinations. However, the water stress in Santa Maria/MA was more prominent. The increase in water stress resulted in higher peroxidase activities as well as phenol contents in both rootstocks. Although catalase activity, anthocyanin, and proline contents increased with the impact of stress, this was not statistically significant. The results suggest that the impact of stress increased with the increase of water stress; therefore, growers should be careful when using M9 and MA rootstocks in both nursery and orchards where water scarcity is present.

scholarly journals Physiological and biochemical characteristics of some therophyllous species of the Ficus genus in water stress conditions

2021 ◽  
Vol 38 ◽  
pp. 00041
Author(s):  
Oksana Grebennikova ◽  
Ruslana Pilkeviсh
Keyword(s):  
Water Stress ◽  
Polyphenol Oxidase ◽  
Drought Resistance ◽  
Biochemical Parameters ◽  
Functional Relation ◽  
Proline Content ◽  
Tissue Water ◽  
Physiological And Biochemical Characteristics ◽  
Combined Action ◽  
Physiological And Biochemical

The relevance of the search for physiological and biochemical parameters associated with the implementation of plant adaptation mechanisms to the combined action of high temperatures and water stress is dictated by frequent summer droughts in southern regions. For this purpose, every month during the dry period under the conditions of a laboratory experiment a number of physiological and biochemical parameters were determined in the leaves of species F. palmata, F. virgata, and F. carica (Sabrutsia Rozovaya variety) that grow in the collection plots of the Nikitsky Botanical Gardens. In studied genotypes were assessed leaves tissue water сut, water deficit, moisture retaining ability, resistance to dehydration, proline content, peroxidase and polyphenol oxidase activity. It was defined that during the summer season physiological and biochemical parameters in the leaves of the studied species varied unequally. There was revealed the functional relation between the activity of peroxidase, polyphenol oxidase, proline content and the level of drought resistance of the studied species of the Ficus genus. The drought resistance of these varieties is most closely related to the proline content.

Morphological, Physiological and Biochemical Responses of Poplar Plants to Drought Stress

2018 ◽  
Vol 5 (03) ◽  
Author(s):  
ARADHNA KUMARI ◽  
IM KHAN ◽  
ANIL KUMAR SINGH ◽  
SANTOSH KUMAR SINGH
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Biochemical Parameters ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Field Capacity ◽  
Drought Event ◽  
Total Biomass ◽  
Biochemical Responses ◽  
Physiological And Biochemical

Poplar clone Kranti was selected to assess the morphological, physiological and biochemical responses under drought at different levels of water stress, as it is a common clone used to be grown in Uttarakhand for making paper and plywood. The cuttings of Populus deltoides L. (clone Kranti) were exposed to four different watering regimes (100, 75, 50 and 25% of the field capacity) and changes in physiological and biochemical parameters related with drought tolerance were recorded. Alterations in physiological (i.e. decrease in relative water content) and biochemical parameters (i.e. increase in proline and soluble sugar content and build-up of malondialdehyde by-products) occurred in all the three levels of water stress, although drought represented the major determinant. Drought treatments (75%, 50% and 25% FC) decreased plant height, radial stem diameter, harvest index, total biomass content and RWC in all the three watering regimes compared to control (100% FC). Biochemical parameters like proline, soluble sugar and MDA content increased with severity and duration of stress, which helped plants to survive under severe stress. It was analyzed that for better wood yield poplar seedlings should avail either optimum amount of water (amount nearly equal to field capacity of soil) or maximum withdrawal up to 75% of field capacity up to seedling establishment period (60 days). Furthermore, this study manifested that acclimation to drought stress is related with the rapidity, severity, and duration of the drought event of the poplar species.

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