scholarly journals Biochar Administration to San Marzano Tomato Plants Cultivated Under Low-Input Farming Increases Growth, Fruit Yield, and Affects Gene Expression

2020 ◽  
Vol 11 ◽  
Author(s):  
Maria Tartaglia ◽  
Simona Arena ◽  
Andrea Scaloni ◽  
Mauro Marra ◽  
Mariapina Rocco
Keyword(s):  
Gene Expression ◽  
Fruit Yield ◽  
Tomato Plants ◽  
Low Input

scholarly journals Morphological, Leaf Nutrient, and Fruit Quality Characteristics of Diverse Tomato Cultivars under Organic Low-Input Management

2021 ◽  
Vol 13 (21) ◽  
pp. 12326
Author(s):  
Leangsrun Chea ◽  
Cut Erika ◽  
Marcel Naumann ◽  
Inga Smit ◽  
Bernd Horneburg ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Plant Morphology ◽  
Quality Characteristics ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Mineral Concentration ◽  
Tomato Production ◽  
Low Input ◽  
Yield And Quality ◽  
Tomato Cultivars

Increasing fruit yield and quality of tomatoes under organic low-input conditions remains a challenge for producers and breeders. Therefore, it is necessary to identify superior tomato cultivars that are suitable for production and use as parents in breeding programmes. In the present study, the variations in plant morphology and fruit quality characteristics of tomato cultivars were assessed to reveal the traits associated with improved yield and fruit quality. Sixty diverse tomato cultivars were screened in 2015, and in 2016, a subset of 20 cultivars was selected for further evaluation under organic low-input conditions. The results showed high variability among cultivars in all 28 traits that were observed. Salad cultivars had lower plant growth and fruit quality (minerals, dry matter, total soluble solids, and total phenolics) by 10–70%, but they displayed 10–60% higher fruit yield and leaf minerals than cocktail cultivars. Salad tomato cultivars with superior yield and harvest index were mainly derived from breeding for intensive indoor production. Cocktail cultivars with superior yield were mainly derived from organic and outdoor breeding programs. There was a trade-off between fruit yield and quality, indicating a challenge for simultaneous improvement of yield and quality. The importance of Mg was highlighted because of its contribution to the fruit mineral concentration and fruit quality. Cultivars superior in one trait or trait combination under organic low-input conditions were identified to be used by producers and breeders as superior cultivars to meet their production targets and breeding objectives. The importance of Mg provides a novel path for further research on improving soil-available Mg in organic tomato production to enhance fruit mineral concentration and fruit quality in general.

scholarly journals Prolonged exposure to atmospheric nitrogen dioxide increases fruit yield of tomato plants

2011 ◽  
Vol 28 (5) ◽  
pp. 485-487 ◽  
Author(s):  
Misa Takahashi ◽  
Atsushi Sakamoto ◽  
Hiroshi Ezura ◽  
Hiromichi Morikawa
Keyword(s):  
Nitrogen Dioxide ◽  
Prolonged Exposure ◽  
Fruit Yield ◽  
Atmospheric Nitrogen ◽  
Tomato Plants

Low doses of UV-C irradiation affects growth, fruit yield and photosynthetic activity of tomato plants

2020 ◽  
Vol 267 ◽  
pp. 109357 ◽  
Author(s):  
Anastasios I. Darras ◽  
G. Tsikaloudakis ◽  
I. Lycoskoufis ◽  
C. Dimitriadis ◽  
D. Karamousantas
Keyword(s):  
Photosynthetic Activity ◽  
Fruit Yield ◽  
Low Doses ◽  
Tomato Plants ◽  
Uv C

scholarly journals Signal transduction in the wound response of tomato plants

1998 ◽  
Vol 353 (1374) ◽  
pp. 1495-1510 ◽  
Author(s):  
Dianna Bowles
Keyword(s):  
Gene Expression ◽  
Signal Transduction ◽  
Proteinase Inhibitor ◽  
Marker Gene ◽  
Wound Response ◽  
Signalling Pathways ◽  
In Planta ◽  
Tomato Plants ◽  
Marker Gene Expression ◽  
Genes Encoding

The wound response of tomato plants has been extensively studied, and provides a useful model to understand signal transduction events leading from injury to marker gene expression. The principal markers that have been used in these studies are genes encoding proteinase inhibitor (pin) proteins. Activation of pin genes occurs in the wounded leaf and in distant unwounded leaves of the plant. This paper reviews current understanding of signalling pathways in the wounded leaf, and in the systemically responding unwounded leaves. First, the nature of known elicitors and their potential roles in planta are discussed, in particular, oligogalacturonides, jasmonates and the peptide signal, systemin. Inhibitors of wound–induced proteinase inhibitor (pin) expression are also reviewed, with particular reference to phenolics, sulphydryl reagents and fusicoccin. In each section, results obtained from the bioassay are considered within the wider context of data from mutants and from transgenic plants with altered levels of putative signalling components. Following this introduction, current models for pin gene regulation are described and discussed, together with a summary for the involvement of phosphorylation–dephosphorylation in wound signalling. Finally, a new model for wound–induced pin gene expression is presented, arising from recent data from the author‘apos; laboratory.

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