scholarly journals Zinc Availability in Hydroponic Culture Influences Glucosinolate Concentrations in Brassica rapa

HortScience ◽  
2004 ◽  
Vol 39 (1) ◽  
pp. 84-86 ◽  
Author(s):  
Timothy W. Coolong ◽  
William M. Randle ◽  
Heather D. Toler ◽  
Carl E. Sams
Keyword(s):  
Nutritional Status ◽  
Brassica Rapa ◽  
Solution Culture ◽  
Linear Increase ◽  
Hydroponic Culture ◽  
Rapid Cycling ◽  
Zinc Availability ◽  
Zn Toxicity ◽  
Quadratic Response ◽  
Zinc Levels

Rapid cycling Brassica rapa L. were grown for 7 days in the presence of 11 levels of zinc (Zn) in hydroponic solution culture and evaluated for changes in Zn and glucosinolate (GS) content. Zinc levels were 0.05, 1, 5, 10, 25, 50, 75, 100, 125, 150, and 200 mg·L-1 Zn. Plants grown in solutions with ≥50 mg·L-1 Zn displayed severe Zn toxicity symptoms, grew little, or died and were not subsequently evaluated for GS content. Shoot Zn concentrations increased linearly with increasing Zn treatment levels. Gluconapin, which accounted for nearly 90% of the aliphatic GSs present, was the only aliphatic GS influenced by Zn, and decreased linearly with increasing Zn levels. Accumulation of glucobrassicin and 4-methoxyglucosbrassicin, both indole GSs, responded with a linear increase and quadratically, respectively, to Zn fertility. An aromatic GS, gluconasturtiin, was also influenced by Zn levels in solution, and had a quadratic response to increasing Zn. This suggested that Zn fertility can influence changes in GS that may affect flavor (bitterness, etc.) or medicinal attributes associated with the GS and their breakdown products, as well as elevate the nutritional status of Zn in the leaves of Brassica.

Soybean (Glycine max) Cultivar Response to Metribuzin in Solution Culture

Weed Science ◽  
1979 ◽  
Vol 27 (3) ◽  
pp. 278-279 ◽  
Author(s):  
W. S. Hardcastle
Keyword(s):  
Glycine Max ◽  
Dry Weight ◽  
Solution Culture ◽  
Hydroponic Culture ◽  
The Other ◽  
Top Dry Weight

Twenty-eight commercial soybean [Glycine max(L.) Merr.] cultivars of maturity classes V through VIII were evaluated for differences in response to metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one] 0.125 ppm w/w in hydroponic culture. Top dry weight (TDW) of treated ‘FFR 666’ soybeans equaled that of the cultivar check and five other cultivars were not significantly different (P = 5%). ‘Semmes' was most sensitive to the herbicide with TDW 40% of cultivar check. ‘Tracy’ and ‘Coker 156’ were not significantly different (P = 5%) from Semmes. The other cultivars tested were intermediate in response to metribuzin.

scholarly journals Beyond genomic variation - comparison and functional annotation of three Brassica rapa genomes: a turnip, a rapid cycling and a Chinese cabbage

BMC Genomics ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 250 ◽  
Author(s):  
Ke Lin ◽  
Ningwen Zhang ◽  
Edouard I Severing ◽  
Harm Nijveen ◽  
Feng Cheng ◽  
...  
Keyword(s):  
Brassica Rapa ◽  
Chinese Cabbage ◽  
Functional Annotation ◽  
Genomic Variation ◽  
Rapid Cycling

scholarly journals The biological effects of strontium (88Sr) on Chinese cabbage

2020 ◽  
Vol 66 (No. 4) ◽  
pp. 149-154
Author(s):  
Weirong Zhang ◽  
Zheng Kang ◽  
Qiang Wang ◽  
Nianwei Qiu ◽  
Min Chen ◽  
...  
Keyword(s):  
Steady State ◽  
Brassica Rapa ◽  
Chinese Cabbage ◽  
Nutritional Value ◽  
Photosynthetic Capacity ◽  
Biological Effects ◽  
Hydroponic Culture ◽  
Growth And Yield ◽  
Low Concentrations ◽  
High Concentrations

Steady-state strontium (<sup>88</sup>Sr) plays an important role in human health. Applying a proper amount of <sup>88</sup>Sr to vegetables can improve their nutritional value. To investigate the biological effects of <sup>88</sup>S on vegetables, three-leaf Chinese cabbage (Brassica rapa L.) seedlings were provided with a nutrient solution containing 0, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 and 10 mmol/L SrCl<sub>2</sub> by the hydroponic culture. The results showed that SrCl<sub>2</sub> at low concentrations (0.2 and 0.5 mmol/L) promoted the growth of Chinese cabbage, while SrCl<sub>2</sub> at high concentrations (2.0–10.0 mmol/L)significantly inhibited the growth. SrCl<sub>2</sub> at high concentrations did not decrease the chlorophyll content and protein content in Chinese cabbage leaves, nor did it affect the photosynthetic capacity of leaves. The main reason that SrCl<sub>2</sub> at high concentrations inhibited the growth of Chinese cabbage was that strontium affected the absorption of calcium. SrCl<sub>2</sub> at the concentration of 0.2 and 0.5 mmol/L could significantly increase leaf protein, chlorophyll, and water content and promote the growth of Chinese cabbage. The supplement of SrCl<sub>2</sub> at these two concentrations may be beneficial to the growth and yield of Chinese cabbage.

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