Nutrient solution concentration and growing season affect yield and quality of Lactuca sativa L. var. acephala in floating raft culture

2009 ◽  
Vol 89 (10) ◽  
pp. 1682-1689 ◽  
Author(s):  
Carlo Fallovo ◽  
Youssef Rouphael ◽  
Elvira Rea ◽  
Alberto Battistelli ◽  
Giuseppe Colla
Keyword(s):  
Nutrient Solution ◽  
Lactuca Sativa ◽  
Growing Season ◽  
Solution Concentration ◽  
Raft Culture ◽  
Floating Raft ◽  
Yield And Quality ◽  
Lactuca Sativa L

scholarly journals Intraspecific Variability Largely Affects the Leaf Metabolomics Response to Isosmotic Macrocation Variations in Two Divergent Lettuce (Lactuca sativa L.) Varieties

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 91
Author(s):  
Giandomenico Corrado ◽  
Luigi Lucini ◽  
Begoña Miras-Moreno ◽  
Leilei Zhang ◽  
Christophe El-Nakhel ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Plant Secondary Metabolites ◽  
Intraspecific Variability ◽  
Mineral Elements ◽  
Yield And Quality ◽  
Lactuca Sativa L ◽  
Adaptive Mechanisms ◽  
Health Related ◽  
Multiple Mineral ◽  
Hydroponically Grown

Mineral elements are essential for plant growth and development and strongly affect crop yield and quality. To cope with an everchanging environment, plants have developed specific responses to combined nutrient variations. In this work, we investigated the effects of multifactorial treatments with three macrocations (K, Ca, and Mg) on lettuce (Lactuca sativa L.) varieties that strongly diverge in leaf pigmentation (full red or green). Specifically, we monitored main leaf parameters and metabolomics profiles of hydroponically grown plants fed with isosmotic nutrient solutions that have different proportions of macroelements. The result revealed a high biochemical plasticity of lettuce, significantly affected by the genotype, the nutrient solution, and their interaction. Our work also provided evidence and insights into the different intraspecific responses to multifactorial variation of macrocations, with two varieties having distinct strategies to metabolically respond to nutrient variation. Overall, plant adaptive mechanisms increased the phytochemical diversity between the varieties both among and within the main classes of plant secondary metabolites. Finally, our work also implies that the interaction of a pre-existing phytochemical diversity with the management of multiple mineral elements can offer added health-related benefits to the edible product specific to the variety.

scholarly journals Hygienic-sanitary quality of vegetables and evaluation of treatments for the elimination of indigenous E. coli and E. coli O157:H7 from the surface of leaves of lettuce (Lactuca sativa L.)

2010 ◽  
Vol 30 (4) ◽  
pp. 1083-1089 ◽  
Author(s):  
Ytana oliveira Santos ◽  
Rogeria Comastri de Castro Almeida ◽  
Alaise Gil Guimarães ◽  
Paulo Fernando Almeida
Keyword(s):  
Lactuca Sativa ◽  
E Coli ◽  
Lactuca Sativa L

scholarly journals Yield and quality of 'gália' melon grown in coconut fiber under different concentrations of macronutrients in the nutrient solution

2017 ◽  
Vol 35 (4) ◽  
pp. 119-128 ◽  
Author(s):  
Christiano Rebougas Cosme ◽  
Nildo da Silva Dias ◽  
Karen Mariany Pereira Silva ◽  
Camilo Vinícius Trindade Silva ◽  
Ítalo Sorac Rafael de Queiroz ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Coconut Fiber ◽  
Yield And Quality

scholarly journals The effects of PLA biodegradable and polypropylene nonwoven crop mulches on selected components of tomato grown in the field

2014 ◽  
Vol 26 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Izabela Zawiska ◽  
Piotr Siwek
Keyword(s):  
Ascorbic Acid ◽  
Dry Matter ◽  
Soluble Sugar ◽  
Soluble Sugars ◽  
Growing Season ◽  
Field Studies ◽  
Nitrate Content ◽  
Yield And Quality ◽  
Cotyledon Stage

ABSTRACT The results of two years (2010-2011) of field studies using two types of nonwoven mulches (one biodegradable, polylactic acid PLA 54 g m-2, and traditional polypropylene PP 50 g m-2) on the yield and quality of tomato are presented. Seeds of tomato (‘Mundi’ F1) were sown in a greenhouse, in containers filled with perlite and sand, and then the plants at the cotyledon stage were replanted in multipot trays filled with substrate for vegetable plants. In the last week of May, seedlings were planted on mulches in the field at a spacing of 50 × 100 cm. The mulch was maintained throughout the growing season. A plot that remained unmulched served as the control. Tomatoes were harvested once a week. The fruits were evaluated for L-ascorbic acid, dry matter, soluble sugars and nitrate content. In 2011, the analysis of the plant material showed that the concentration of L-ascorbic acid was about 23% higher in the tomato fruits harvested from plants grown on biodegradable PLA 61 g m-2 mulch in comparison to the control. A similar effect was demonstrated for the soluble sugar concentration in 2011 for both types of nonwovens.

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