Fruit and Vegetable Quality as Affected by Nitrogen Nutrition

Locascio, S. J.; Wiltbank, W. J.; Gull, D. D.; Maynard, Donald N.

doi:10.2134/1990.nitrogenincropproduction.c42

Cited by 21 publications

(6 citation statements)

References 11 publications

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“…By contrast, tubers grown under N140 had comparable starch levels compared to those unfertilized (N0). A previous study reported an inverse relationship between nitrogen fertilization rate and levels of DM and starch [63]. This is in agreement with the "carbon/nitrogen balance" theory [64], which proposes that when N availability limits plant growth the metabolism shifts towards carbon rich compounds, such as starch.…”

Section: Tuber Chemical Traitssupporting

confidence: 86%

Optimizing Nitrogen Fertilization to Improve Qualitative Performances and Physiological and Yield Responses of Potato (Solanum tuberosum L.)

2020

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Potato is often produced by adopting high nitrogen (N) external inputs to maximize its yield, although the possible agronomic and qualitative benefits of a N over-fertilization to the crop are scarcely demonstrated. Therefore, our aim was to determine, over two years, the effect of three N fertilization rates (0, 140 and 280 kg ha −1 , referred to as N0, N140 and N280) simultaneously on the crop physiology, yield components, N use efficiency and tuber chemical composition of cv. Bellini. Throughout the field monitoring, our data highlighted that N140 provided an improvement of the crop physiology, as expressed in terms of leaf photosynthesis rate and Soil Plant Analysis Development (SPAD) readings, than the other N fertilization rates. In addition, regardless of year and as compared to N0 and N280, the supply of 140 kg N ha −1 also ensured the highest yield and an intermediate value of the nitrogen use efficiency (59.1 t ha −1 and 37.1 kg tuber dry weight kg N −1 , respectively), together with nutritionally relevant tuber qualitative traits, i.e. high levels of dry matter, starch (by an enzymatic/spectrophotometric method), total polyphenols (by Folin-Ciocalteu assay) and ascorbic acid [by high-performance liquid chromatography (HPLC) analysis], and a low nitrate amount (by an ion-selective electrode method) (16.6%, 634-3.31-0.61 and 0.93 g kg −1 of dry matter, respectively). Therefore, although a certain interaction between N fertilization rate and year was observed, our findings demonstrated that a conventional N fertilization rate (280 kg ha −1 ) is unnecessary from both agronomic and qualitative standpoints. This is of considerable importance in the perspective to both limit environmental pollution and improve growers' profits by limiting N external inputs to potato crops.

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Section: Tuber Chemical Traitssupporting

confidence: 86%

Optimizing Nitrogen Fertilization to Improve Qualitative Performances and Physiological and Yield Responses of Potato (Solanum tuberosum L.)

2020

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“…Considering that at CT2 leaves are more numerous and succulent, and have a lower An per nitrogen, the variation of leaf structure indicated by the SLA is more likely due to inter-leaf shading [51], with carbon fixation not occurring at maximum rate not because of a limitation of nitrogen-containing photosynthetic compounds [52]. Although there are different mineral elements that affect vegetative growth, nitrogen is crucial for crop yield in virtually all leafy vegetables [53,54]. Our work indicated that the cut affected nitrogen concentration and NUE in basil.…”

Section: Discussionmentioning

confidence: 99%

Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

et al. 2020

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Sweet basil (Ocimum basilicum L.) is an aromatic, tender leafy green cultivated for the fresh market and industrial processing. Like many other leafy vegetables, this species can be harvested more than once to increase productivity. Although the cut-and-come-again (CC) harvest strategy is widespread in basil, not much is known about the effect of the cut. In this work, we examined differences in biomass, physiology, nutrient use efficiency and antioxidant capacity of basil leaves from two successive harvests. Moreover, we also performed an untargeted metabolomics analysis to reveal variations in the leaf metabolite profile. The data indicated that the cut affected many of the parameters under investigation, including a modest reduction of yield (−20%), of nitrogen use efficiency (−21%) and of some quality attributes such as the antioxidant capacity (−16%) and the nitrate content in leaves (+48%). Moreover, leaves of successive cuts displayed a significant variation of the profile of bioactive compounds, characterized by an overall decrease of phenylpropanoids and an increase in terpenoids. Our data revealed the impact of CC harvesting strategy in basil, and that this strategy offers the possibility to yield leaves with different metabolomics profiles and quality attributes.

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“…Proper nutrient management can mitigate this disorder [42]. Despite not always affecting internal quality, rind staining reduces visual appeal, leading to lower market grades and prices [43].…”

Section: Common Post-harvest Physio-logical Disordersmentioning

confidence: 99%

A Comprehensive Review on Post Harvest Physiological Disorders in Citrus Fruit Crops (Citrus spp.)

Jain,

Singh,

Kore

et al. 2023

IJECC

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Post-harvest physiological disorders in citrus fruit crops (Citrus spp.) present significant challenges that impact both the economic and environmental aspects of global agriculture. This comprehensive review explored various dimensions of the subject, ranging from the description and classification of major disorders, such as chilling injury, rind staining, water loss, and mold, to the innovative detection and diagnostic techniques being employed in the industry. Through an extensive examination of prevention and management strategies, the review sheds light on pre-harvest factors, post-harvest treatments, and the role of modern technologies and agronomic practices in mitigating these disorders. It also delves into the economic losses and environmental consequences linked to different management approaches, underlining the need for sustainability and eco-friendly solutions. A particular focus is given to the emerging trends and technologies in the field, including nanotechnology, artificial intelligence, and natural treatments, all of which signal a shift towards a more integrated and sustainable management approach. By identifying current research gaps and the necessary future research direction, the review highlights opportunities for innovation and collaboration among growers, researchers, and policymakers. In addition, it emphasizes the broader implications of these disorders and their management on global trade, labor markets, and regulatory landscapes. This review serves as a valuable reference for stakeholders in the citrus industry, providing insights and guidance on best practices, technological advancements, and future perspectives. It represents an essential step towards aligning the citrus production with global sustainability goals and fostering a resilient industry capable of adapting to the ever-changing demands and challenges of the modern world.

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Fruit and Vegetable Quality as Affected by Nitrogen Nutrition

Cited by 21 publications

References 11 publications

Optimizing Nitrogen Fertilization to Improve Qualitative Performances and Physiological and Yield Responses of Potato (Solanum tuberosum L.)

Optimizing Nitrogen Fertilization to Improve Qualitative Performances and Physiological and Yield Responses of Potato (Solanum tuberosum L.)

Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

A Comprehensive Review on Post Harvest Physiological Disorders in Citrus Fruit Crops (Citrus spp.)

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