scholarly journals Changes in physiological and biochemical parameters during the growth and development of guava fruit (Psidium guajava) grown in Vietnam

2021 ◽  
Vol 53 (2) ◽  
pp. 82-90
Author(s):  
Trong Van Van Le Van ◽  
N.N. Khanh ◽  
L.T. Huyen ◽  
V.T.T. Hien ◽  
L.T. Lam
Keyword(s):  
Growth And Development ◽  
Biochemical Parameters ◽  
Gradual Increase ◽  
Maximum Size ◽  
Reducing Sugar ◽  
Tannin Content ◽  
Guava Fruit ◽  
Pectin Content ◽  
Fruit Formation ◽  
Physiological And Biochemical

This research examined the ripening time of guava fruit to provide a scientific basis for better harvesting and preservation of these fruits. Biochemical research methods were used to analyse changes in physiological and biochemical parameters according to the growth and development of guava fruit. The fruit took 14 weeks after anthesis to reach its maximum size in terms of length and diameter. The chlorophyll content in guava peel peaked after 10 weeks, decreasing until week 15. The content of carotenoids, which was low at fruit formation, rose rapidly until fruit ripening, while the vitamin C and reducing sugar contents increased continuously and peaked at week 14. A gradual increase was seen in the starch and total organic acid contents from the beginning of fruit formation, with peaks at 10 weeks, followed by a moderate downward trend. The pectin content showed the same trend, as it declined gradually after peaking at 12 weeks. The first 4 weeks showed an increase in the tannin content, which decreased afterward. The study results show that guava fruit should be harvested after physiological maturity and before ripening completely (14 weeks) to ensure that the nutritional value of the fruit is maintained during storage. Highlights• Xa Li guava at 14 week after anthesis to reach its maximum size in terms of length and diameter. • The chlorophyll content in guava peel peaked after 10 weeks, decreasing until week 15. The content of carotenoids, which was low at fruit formation, rose rapidly until fruit ripening.• The vitamin C and reducing sugar contents peaked at week 14. A gradual increase was seen in the starch and total organic acid contents and peaks at 10 weeks, followed by a moderate downward trend. • The pectin content showed the same trend, as it declined gradually after peaking at 12 weeks. The first 4 weeks showed an increase in the tannin content, which decreased afterward.

Study on some of the physiological and biochemical indexes under the age of development of banana fruit (Musa paradisiaca L.) grown in Thanh Tri, Hanoi

2021 ◽  
Vol 66 (1) ◽  
pp. 87-95
Author(s):  
Trong Le Van ◽  
Khanh Nguyen Nhu
Keyword(s):  
Fruit Ripening ◽  
Starch Content ◽  
Sugar Content ◽  
Maximum Size ◽  
Research Process ◽  
Scientific Basis ◽  
Carotenoid Content ◽  
Banana Fruit ◽  
Fruit Formation ◽  
Physiological And Biochemical

Research to determine the ripening time of the fruit is the scientific basis for better harvesting and preservation. Physiological and biochemical methods were used to analyze the changes of some indicators according to the growth and development of banana fruit grown in Thanh Liet commune, Thanh Tri district, Hanoi from the time of its formation until the fruit ripening. The results showed that the banana reached the maximum size at 16 weeks old, at this time the peel was yellow due to the decrease in chlorophyll and increased carotenoid content. The content of vitamin C and total organic acid content reached their maximum when the fruit at 12 weeks old, then decreased gradually. Starch content increased to 14 weeks old, then decreased. Reduced sugar content increased gradually to 16 weeks old and then decreased. Protein content decreased gradually from fruit formation until fruit ripening, lipid content increased gradually to 15 weeks old, then decreased. Through the research process, we have determined that the physiological ripe time of banana fruit was 16 weeks old, this is the time when the fruit stops growing and accumulates many nutrients.

Physiological and Biochemical Parameters of Holstein Heifers when Adding to their Diet Bio-Drugs Containing Cuprum and Cobalt Nanoparticles

2017 ◽  
Vol 13 ◽  
pp. 123-129
Author(s):  
Petr M. Makarov ◽  
Irina A. Stepanova ◽  
Anna A. Nazarova ◽  
Svetlana D. Polishchuk ◽  
Gennadiy I. Churilov
Keyword(s):  
Weight Gain ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Growth And Development ◽  
Biochemical Parameters ◽  
Physiological State ◽  
Live Weight ◽  
Blood Parameters ◽  
Cobalt Nanoparticles ◽  
Physiological And Biochemical

The article presents the influence of biopreparations containing nanoparticles of cobalt and cuprum on the physiological state of Holstein heifers in a case of adding them to the diet. We have studied parameters of the animals’ growth and development in dynamics of live weight gain, clinical and biochemical blood parameters, the leucogram and amino acid composition of the experiment animals’ blood during the experiment.

CHANGES IN PHYSIOLOGICAL AND BIOCHEMICAL INDICATORS DURING THE GROWTH AND DEVELOPMENT OF BANANA FRUIT (Musa paradisiaca L.) GROWN IN VINH PHUC PROVINCE

2020 ◽  
Vol 65 (10) ◽  
pp. 114-123
Author(s):  
Trong Le Van ◽  
Khanh Nguyen Nhu
Keyword(s):  
Starch Content ◽  
Sugar Content ◽  
Maximum Size ◽  
Research Process ◽  
Banana Peel ◽  
Banana Fruit ◽  
And Storage ◽  
Fruit Formation ◽  
Organic Acid Content ◽  
Physiological And Biochemical

The banana fruit reached its maximum size in terms of length and diameter at 18 weeks of age. The content of chlorophyll a in banana peel reached the highest value at 14 weeks old, chlorophyll b content reached the highest value at 12 weeks old and decreased rapidly. The content of carotenoid was low from fruit formation and then increased rapidly until the fruit is fully ripening. The vitamin C content and total organic acid content reached a maximum at 16 weeks old and then decreased until the fruit is fully ripened, the reducing sugar content increased continuously and reached a maximum at 18 weeks old and then decreased slightly. The starch content and pectin content reached a maximum when the fruit was 14 weeks old and then gradually decreased. The tannin content decreased from fruit formation until fruit ripening. Through the research process, we found that banana achieves the best quality to harvest when fruits are 18 weeks old. The results of this study provide important data for the harvesting and storage of banana fruit.

Effects of Allochthonous Nitrogen on Some Physiological and Biochemical Parameters in Carps

2007 ◽  
Vol 43 (1) ◽  
pp. 95-105
Author(s):  
O. G. Zinkovskiy ◽  
V. D. Solomatina ◽  
A. S. Potrokhov ◽  
N. A. Mogilevich
Keyword(s):  
Biochemical Parameters ◽  
Physiological And Biochemical

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.

scholarly journals Evaluation of Indigenous Olive Biocontrol Rhizobacteria as Protectants against Drought and Salt Stress

2021 ◽  
Vol 9 (6) ◽  
pp. 1209
Author(s):  
Nuria Montes-Osuna ◽  
Carmen Gómez-Lama Cabanás ◽  
Antonio Valverde-Corredor ◽  
Garikoitz Legarda ◽  
Pilar Prieto ◽  
...  
Keyword(s):  
Salt Stress ◽  
Abiotic Stresses ◽  
Biochemical Parameters ◽  
Biocontrol Agent ◽  
Negative Effects ◽  
Experimental Conditions ◽  
Acds Gene ◽  
Drought And Salt Stress ◽  
Physiological And Biochemical

Stress caused by drought and salinity may compromise growth and productivity of olive (Olea europaea L.) tree crops. Several studies have reported the use of beneficial rhizobacteria to alleviate symptoms produced by these stresses, which is attributed in some cases to the activity of 1-aminocyclopropane-1-carboxylic acid deaminase (ACD). A collection of beneficial olive rhizobacteria was in vitro screened for ACD activity. Pseudomonas sp. PICF6 displayed this phenotype and sequencing of its genome confirmed the presence of an acdS gene. In contrast, the well-known root endophyte and biocontrol agent Pseudomonas simiae PICF7 was defective in ACD activity, even though the presence of an ACD-coding gene was earlier predicted in its genome. In this study, an unidentified deaminase was confirmed instead. Greenhouse experiments with olive ‘Picual’ plants inoculated either with PICF6 or PICF7, or co-inoculated with both strains, and subjected to drought or salt stress were carried out. Several physiological and biochemical parameters increased in stressed plants (i.e., stomatal conductance and flavonoids content), regardless of whether or not they were previously bacterized. Results showed that neither PICF6 (ACD positive) nor PICF7 (ACD negative) lessened the negative effects caused by the abiotic stresses tested, at least under our experimental conditions.

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