scholarly journals Mineral Nutrient Composition of Green and White Asparagus Spears

HortScience ◽  
1994 ◽  
Vol 29 (12) ◽  
pp. 1468-1469 ◽  
Author(s):  
D.J. Makus

Mineral nutrients were determined in green and white `Jersey Giant' asparagus (Asparagus officinalis L.) spears grown in 1991 near Booneville, Ark. Green spears had higher concentrations of tissue N, K, P, S, Na, and Zn; similar levels of Fe, Al, and Cu; and lower levels of NO3 than white spears grown under opaque plastic rowcovers or under sawdust mulch. Levels of Ca, Mg, and Mn were higher in plastic-grown white spears than in those grown in sawdust. The spear tip contained higher concentrations of K, S, and Cu than the butt. Less NO3, Fe, and Al were in the tip than in the butt. Spear distribution gradients for K, Fe, and Cu were linear, whereas S and NO3 gradients were both linear and quadratic. Nitrogen, P, Ca, Mg, Zn, Al, and Mn levels were influenced by spear production method and spear segment.

1995 ◽  
Vol 5 (2) ◽  
pp. 121-125 ◽  
Author(s):  
John N.A. Lott ◽  
M. Marcia West ◽  
Ben Clark ◽  
Penny Beecroft

AbstractThe endosperm and cotyledon tissues of Ricinus communis seeds and young seedlings were examined for changes in the mineral nutrient composition of globoids during early seedling growth. The effect on globoid composition of providing mineral nutrients to the developing seedling was also investigated. Globoids in endosperm and cotyledon tissues of castor bean seeds contained P, Mg and K, as well as trace amounts of Ca, Fe and Zn. Irrespective of the addition of mineral nutrients, K content in globoids of endosperm and cotyledon tissues declined significantly during initial seedling growth. During early seedling growth, amounts of Fe, Zn and Ca increased in cotyledon globoids. Ca contents of globoids of endosperm tissues also increased. The changes in Fe, Zn and Ca globoid contents were not influenced by providing mineral nutrients to growing castor bean seedlings.


1994 ◽  
Vol 4 (4) ◽  
pp. 407-413 ◽  
Author(s):  
Graeme D. Batten ◽  
Irene Ockenden ◽  
John N. A. Lott

AbstractA study was conducted to assess the effect of the supply of phosphorus and the major cations on the mineral nutrient composition of whole mature wheat grains and the electron-dense globoid crystals found in the aleurone cells. Ears of wheat plants, growing in the field, were detached after anthesis. The ears were cultured to maturity in a sterile control solution which contained all essential elements. Other ears were cultured in solutions which contained no phoshorus, no calcium, no magnesium, combinations of these (−P, −Ca; −P, −Mg) or a solution which contained additional potassium but no phosphorus, calcium or magnesium. Ears cultured in the control solution produced grains with higher concentrations of P, Mg, K and Ca than grains from ears which matured on plants in the field. All the −P treatments produced grains with lower concentrations of P and higher concentrations of Mg, K and Ca than the plants grown in the field. The appearance and elemental composition of the globoid crystals in the aleurone cells support the hypotheses that the size of globoid crystals is regulated, in part, by the amount of phosphorus deposited in the grain and also by the relative proportions of K, Mg and Ca in the tissue. The culture of individual ears of cereal plants is a useful technique by which to study the transfer to and deposition of mineral nutrients in cereal grains.


2016 ◽  
Vol 411 (1-2) ◽  
pp. 319-332 ◽  
Author(s):  
Martin Reich ◽  
Tahereh Aghajanzadeh ◽  
Juliane Helm ◽  
Saroj Parmar ◽  
Malcolm J. Hawkesford ◽  
...  

2019 ◽  
Vol 99 (2) ◽  
pp. 199-209 ◽  
Author(s):  
Marija Saric-Krsmanovic ◽  
Dragana Bozic ◽  
Ljiljana Radivojevic ◽  
Jelena Gajic Umiljendic ◽  
Sava Vrbnicanin

The physiological and anatomical impact of field dodder (Cuscuta campestris Yunck.) on alfalfa and sugar beet was examined under controlled conditions. The following parameters were checked: physiological — content of pigments (chlorophyll a, chlorophyll b, and carotenoids) and mineral nutrients: nitrogen, phosphorus, potassium, and percent of organic and mineral nutrients; and anatomical — thickness of the epidermis and cortex, diameter of the stem and central cylinder of alfalfa plants, diameter of tracheids and phloem cells, area of xylem and phloem, and hydraulic conductance of petiole bundles in petiole vascular bundles of sugar beet plants. Leaf parameters were also measured on both host plants: thickness of upper and underside leaf epidermis, thickness of palisade, spongy and mesophyll tissue, and diameter of vascular bundle cells. Pigments content and anatomical parameters were measured 7, 14, 21, 28, 35, and 42 d after infestation (DAI), while mineral nutrient contents were determined 20 and 40 DAI. Field dodder caused a significant reduction in pigments content in infested alfalfa (15%–68%) and sugar beet plants (1%–54%). The results obtained in this study confirmed that this parasitic flowering plant has a strong effect on most anatomical parameters of the stem and leaf of alfalfa and leaf and petiole of sugar beet. Also, it was revealed that field dodder increased the contents of N, P2O5, K2O, and organic nutrients in infested alfalfa plants, while infested sugar beet plants had higher contents of N and organic nutrients compared with non-infested plants.


Genes ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 402
Author(s):  
Qianqian Chen ◽  
Weiwei Wu ◽  
Tong Zhao ◽  
Wenqi Tan ◽  
Jiang Tian ◽  
...  

Proton toxicity is one of the major environmental stresses limiting crop production and becomes increasingly serious because of anthropogenic activities. To understand acid tolerance mechanisms, the plant growth, mineral nutrients accumulation, and global transcriptome changes in soybean (Glycine max) in response to long-term acidity stress were investigated. Results showed that acidity stress significantly inhibited soybean root growth but exhibited slight effects on the shoot growth. Moreover, concentrations of essential mineral nutrients were significantly affected by acidity stress, mainly differing among soybean organs and mineral nutrient types. Concentrations of phosphorus (P) and molybdenum (Mo) in both leaves and roots, nitrogen (N), and potassium (K) in roots and magnesium (Mg) in leaves were significantly decreased by acidity stress, respectively. Whereas, concentrations of calcium (Ca), sulfate (S), and iron (Fe) were increased in both leaves and roots. Transcriptome analyses in soybean roots resulted in identification of 419 up-regulated and 555 down-regulated genes under acid conditions. A total of 38 differentially expressed genes (DEGs) were involved in mineral nutrients transportation. Among them, all the detected five GmPTs, four GmZIPs, two GmAMTs, and GmKUPs, together with GmIRT1, GmNramp5, GmVIT2.1, GmSKOR, GmTPK5, and GmHKT1, were significantly down-regulated by acidity stress. Moreover, the transcription of genes encoding transcription factors (e.g., GmSTOP2s) and associated with pH stat metabolic pathways was significantly up-regulated by acidity stress. Taken together, it strongly suggests that maintaining pH stat and mineral nutrient homeostasis are adaptive strategies of soybean responses to acidity stress, which might be regulated by a complex signaling network.


2016 ◽  
Vol 10 (8) ◽  
pp. 1069-1074
Author(s):  
Rosiane de Lourdes Silva de Lima ◽  
◽  
Carlos Alberto Vieira de Azevedo ◽  
Hans Raj Gheyi ◽  
Jairo Osvaldo Cazetta ◽  
...  

2019 ◽  
Vol 64 (1) ◽  
pp. 63-70
Author(s):  
Md. Dulal Sarkar ◽  
Abul Hasnat Muhammad Solaiman ◽  
Mohammad Shah Jahan ◽  
Rojobi Nahar Rojoni ◽  
Khairul Kabir ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Lord Abbey ◽  
Nana Annan ◽  
Samuel Kwaku Asiedu ◽  
Ebenezer Oluwaseun Esan ◽  
Ekene Mark-Anthony Iheshiulo

Growing medium amino acids and mineral nutrients stimulate rhizosphere activities and plant growth. A greenhouse experiment was performed to compare amino acid and mineral nutrient profiles of seafood waste compost (SFWC) and municipal solid waste compost (MSWC) and vermicompost (VC). Their efficacies were also tested on onion (Allium cepa L. “Sweet Utah”). The control was Promix-BX™ alone. The MSWC, SFWC, and VC were composed of total of 36.4, 48.3, and 67.5 mg amino acids/100 g dry weight, respectively. Glutamic acid, aspartic acid, and glycine were the highest while methionine, histamine, and cysteine were the least in all the amendments. The VC had the highest Ca content but the least P and K contents. SFWC had the highest content of P and K and most of the determined micronutrients. The MSWC had significantly (P<0.05) the highest N and leaf chlorophyll contents followed by the VC. The MSWC significantly (P<0.05) increased anthocyanin content while the control recorded the least. The maximum quantum yield of photosystem II (Fv/Fm) and the potential photosynthetic capacity (Fv/Fo) were least in the VC treated plants. Dry matter was not affected by the type of amendment. Overall, plant growth was improved by the MSWC. Future research should investigate effect on secondary metabolites.


2018 ◽  
Vol 44 (4) ◽  
pp. 669-670
Author(s):  
Haluk Başar ◽  
Serhat Gürel

A comparative study on mineral composition of the olive trees was made to see the changes in the content of the nutrient elements in the component (leaf and fruit) parts. Differences between the leaf and fruit mean concentrations of the whole elements examined were found to be statistically significant. Potassium and boron concentrations in the fruits were higher than that of the leaves. But, the concentration of the rest of the elements in the fruits was lower than the leaves.


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