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Kage, Henning; Alt, C.; Stützel, Hartmut

doi:10.1023/a:1020627723616

Cited by 30 publications

(10 citation statements)

References 23 publications

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“…In our study, the highest protein content was observed in florets, but the difference between florets and leaf-stem was not as big as suggested by Hong [40]. However, the decrease in nitrogen was reported with the increase of the organ size [39,40]. Thus, the lower protein concentration in florets can be related to its dilution in the vegetable tissue at the harvest stage.…”

Section: Discussionsupporting

confidence: 42%

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Variation in the Accumulation of Phytochemicals and Their Bioactive Properties among the Aerial Parts of Cauliflower

2021

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Vegetables from the Brassicaceae family are excellent sources of bioactive phytochemicals and may reduce the risk of chronic diseases. Variation of phytochemicals in the edible part of cauliflower is known. However, information about the distribution of bioactive and nutritive compounds as well as antioxidant activity among aerial organs of cauliflower is unavailable. Therefore, this study aimed to evaluate the distribution of glucosinolates (GLS), phenolics, flavonoids, chlorophylls, nutritive compounds and antioxidant capacity between the aerial parts of the common variety of cauliflower and to evaluate whether these changes contribute to the differences in the antioxidant capacity between the plant organs. Our study showed that all the aerial organs of cauliflower are a rich source of health-promoting bioactive compounds, including GLS, phenolics and flavonoids, exhibiting antioxidant capacity. The highest contents of phytochemicals and the highest antioxidant capacity were found in leaves. Cauliflower organs were also found to be rich in nutritive compounds, including minerals, proteins and amino acids. Our study showed that the non-edible organs, such as stems and leaves, being neglected parts of cauliflower, if not consumed as the main ingredient, can be used as additives for developing new, functional foodstuff.

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Section: Discussionsupporting

confidence: 42%

“…Changes in the allocation of the nutritional resources during growth and modified fertilization, and the differences between the varieties have been analyzed repeatedly [38,39]. However, little is known about the distribution of the nutritive compounds between the different organs of Brassica vegetables, including cauliflower.…”

Section: Discussionmentioning

confidence: 99%

Variation in the Accumulation of Phytochemicals and Their Bioactive Properties among the Aerial Parts of Cauliflower

2021

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“…The relationships between plant dry matter (PDM) based, with leaf area index (LAI), L DM , and SDM based N nutrition index, accumulated N deficit, and N requirement indicated that leaf based approaches could be used as substitutes for PDM approach [32]. Moreover, the real-time, quick, and non-destructive field methods (chlorophyll meter, hyper-spectral meter, remote sensing, and digital photography) generally monitor N concentration at single leaf or on canopy basis, instead of whole-plant basis [14,15]. Besides, the leaf is a major photosynthetic organ, and highly responsive to N fertilization [33,34].…”

Section: Discussionmentioning

confidence: 99%

“…Specifically for rice, the critical nitrogen model is based on the analysis of the entire plant; the curve changes as a result of the differences in climate, environment, and genetics. Mostly, this occurs when the plant is subjected to stress [13][14][15][16], this changes the distribution of dry matter; thus, affecting the establishment of the curve [17]. Consequently, it is important to study the dilution curve of critical nitrogen concentration in different crop organs.…”

Section: Introductionmentioning

confidence: 99%

Establishment and Application of Critical Nitrogen Dilution Curve for Rice Based on Leaf Dry Matter

Song

Shu

2020

Agronomy

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In order to investigate the feasibility of using rice leaf critical nitrogen concentration as a nitrogen nutrition diagnosis index, a three-year positioning experiment with large-spike rice cultivar (Wuyoudao4) and multiple-spike rice cultivar (Songjing9) under five nitrogen levels (0, 60, 120, 180, and 240 kg·ha−1) was conducted. A critical nitrogen dilution curve and a nitrogen nutrition index (NNI) of rice leaf dry matter were constructed for Wuyoudao4 (Nc = 1.96LDM−0.56, R2 = 0.87, NNI was between 0.6–1.26, and Normalized Root Mean Square Error (n-RMSE) = 13.07%) and Songjing9 (Nc = 1.99LDM−0.44, R2 = 0.94, NNI was between 0.64–1.29, and n-RMSE = 15.89%). The relationship between dry matter and nitrogen concentration of rice leaves was a negative power function, and the model had good stability over the three years. The developed critical nitrogen concentration dilution curve, based on leaf dry matter, was able to diagnose nitrogen nutrition in rice efficiently. The model established in this study could be used to directly regulate and control the nitrogen nutrition of rice leaves.

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“…In a previous study, it was revealed that cauliflower and broccoli responded well to optimum fertilizer levels in terms of both yield and quality [17,22]. However, a high rate of N fertilization can produce excessive vegetative growth that delays maturity and harvest and reduces cotton lint yield and N uptake [17,27].…”

Section: Discussionmentioning

confidence: 99%

The Establishment and Application of Models for Recommending Formula Fertilization for Different Maturing Genotypes of Broccoli

Yao

Liu

et al. 2022

Applied Sciences

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According to the requirements of different fertilizers for early-maturing and late-maturing broccoli, this study aimed to establish the models of formula fertilization to apply them in the recommendation of fertilization by the aid of soil testing performed in main broccoli-producing areas. In this paper, based on the effective functions of for nitrogen- (N), phosphorous- (P), and potassium (K)-balanced fertilizers for broccoli of two different mature types, the models of formula fertilization were established. The recommend formula fertilization was accomplished in 12 different plots in the same broccoli-producing areas. The analysis of N, P, and K fertilizer contributions to broccoli yield indicated that the application rate of N, P, and K fertilizers for early-maturing variety was higher than that for late-maturing variety, when the yield contribution rate of N, P, and K fertilizers reached the extreme value. The contribution of K fertilization to the yield even had a significantly negative effect with the continuous increase of K fertilizer application for the late-maturing broccoli variety. The results showed that the different optimal combinations of applying N, P, and K fertilizers could be recommended, according to the different genotypes and soil nutrient levels.

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Untitled

Cited by 30 publications

References 23 publications

Variation in the Accumulation of Phytochemicals and Their Bioactive Properties among the Aerial Parts of Cauliflower

Variation in the Accumulation of Phytochemicals and Their Bioactive Properties among the Aerial Parts of Cauliflower

Establishment and Application of Critical Nitrogen Dilution Curve for Rice Based on Leaf Dry Matter

The Establishment and Application of Models for Recommending Formula Fertilization for Different Maturing Genotypes of Broccoli

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