scholarly journals Responses of six tomato (Lycopersicon esculentum Mill.) genotypes to salinity stress at low altitudes of Bengkulu, Indonesia

Akta Agrosia ◽  
2018 ◽  
Vol 21 (1) ◽  
pp. 19-24
Author(s):  
Usman KJ Suharjo ◽  
Sartika Y Nababan ◽  
Masdar Masdar ◽  
Tunjung Pamekas ◽  
Mukhtasar Mukhtasar

Salinity stress causing water deficit, nutrient deficiency, and ion imbalance for the crops has been reported to reduced crop growth, crop yield, and fruit quality in tomatoes. The main objective of this research were to determine the LC-50 of salinity, to evalute the response of six tomato genotypes to LC-50, and to study the effect of genotype and salinity stress on crop growth, crop yield, and fruit quality of tomatoes. The LC-50 of salinity was determinated by growing tomato seedlings at different level of saline solutions (0, 400, 500, 6000, 7000, 9000, 10000, 11000, and 12000 ppm of NaCl) and used the LC-50 of salinity to evaluate the salinity tolerance of six tomato genotypes. The results showed that the LC-50 of saline solution was 9000 ppm NaCl and genotype Empat G was found to be the most tolerant to salinity stress

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 739 ◽  
Author(s):  
Nam Su Kim ◽  
Soon-Jae Kwon ◽  
Do Manh Cuong ◽  
Jin Jeon ◽  
Jong Seok Park ◽  
...  

Salinity stress affects plants by reducing the water potential and causing ion imbalance or disturbances in ion homeostasis and toxicity. Salinity stress frequently causes both osmotic and ionic stress in plants, resulting in the increase or decrease of certain secondary metabolites in plants. In this study, the effect of NaCl treatment on the nutritional quality of tartary buckwheat plants was studied by conducting an HPLC analysis of phenylpropanoid and anthocyanin content. It was observed that there was no significant change of color in tartary buckwheat during salt treatment. The accumulation of most phenylpropanoid compounds increased slightly in response to the NaCl concentration. The total phenylpropanoid content in tartary buckwheat was the highest at 100 mM NaCl treatment. Seven-day-old wheat plantlets treated with 100 mM NaCl for 2, 4, 6, and 8 days showed the highest accumulation of total phenylpropanoids at day 8 after treatment, while the content of most phenylpropanoids was higher than that in the control during this period. Although the development of tartary buckwheat slightly decreased with NaCl treatment and the accumulation of anthocyanin compounds did not change in plants with a diffident NaCl concentration and time treatment, the results suggest that the salinity treatment of tartary buckwheat causes antioxidant activity improvement by inducing an accumulation of flavonoid and phenolic compounds. However, since the anthocyanin content did not increase, the antioxidant effect of the treatment is not expected to be significant.


2016 ◽  
Vol 34 (1) ◽  
pp. 33-41 ◽  
Author(s):  
María Helena Cortés-Rojas ◽  
Paola Andrea Mesa-Torres ◽  
Carlos Mario Grijalba-Rativa ◽  
María Mercedes Pérez-Trujillo

This study aimed to compare the crop yield and some quality-related aspects of the blueberry cultivars Biloxi and Sharpblue in a commercial crop located in Guasca (Colombia). This research was conducted between June and December of 2014, observing two lots with different plant ages at the start of the study: 20 months and 36 months. For 28 weeks, mature fruits were manually harvested and the accumulated yield per plant, the number of fruits, the diameter, the firmness and the total soluble solids (TSS) were determined. The yield of both cultivars was similar in the 20-month-old plants. The 'Sharpblue' 36-month-old plants had an accumulated yield that was 60% higher than that of the 'Biloxi' cultivar due to the fact that they produced a higher number of fruits. In addition, the Sharpblue fruits tended to present higher TSS values. Although both cultivars were similar in terms of firmness, 'Biloxi' stood out more than 'Sharpblue' in the 20-month-old plants. The individual weight and diameter of the fruits were similar for both cultivars.


2019 ◽  
Vol 106 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Ivana Petrović ◽  
Sladjana Savić ◽  
Zorica Jovanović ◽  
Radmila Stikić ◽  
Beatrice Brunel ◽  
...  

2019 ◽  
Vol 11 (1) ◽  
pp. 109-116
Author(s):  
Anna Rita Tóth ◽  
Tímea Rubóczki ◽  
Mária Takácsné Hájos

Abstract Recently, industrial tomato production in Hungary shows an increasing tendency after a weak processing period. However, to maintain the cultivation profitable, the use of proper technology and genotype is indispensable. In the experiment, five hybrids and one variety were evaluated in a plot experiment design on open field. The main objective was to evaluate the fruit quality of different genotypes and to determine the suitability for mechanical harvest. According to the results, Heinz 1015 F1 and Heinz 9478 F1 had the best fruit quality for industrial processing. Nowadays, the use of hybrids with good adaptability and resistance properties is important for a profitable production.


Fruits ◽  
2004 ◽  
Vol 59 (5) ◽  
pp. 339-350 ◽  
Author(s):  
Eva Johanna Maria Vanderlinden ◽  
H. Alfred Juergen Pohlan ◽  
Marc J.J. Janssens
Keyword(s):  

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