scholarly journals Browsing and Plant Age Relationships to Winter Protein and Fiber of Big Sagebrush Subspecies

2004 ◽  
Vol 57 (6) ◽  
pp. 620 ◽  
Author(s):  
Carl L. Wambolt
Keyword(s):  
Plant Age ◽  
Big Sagebrush

Gall-Insect Community on Big Sagebrush Varies With Plant Size but not Plant Age

2015 ◽  
Vol 44 (4) ◽  
pp. 1095-1100 ◽  
Author(s):  
Kayla A. Spawton ◽  
William C. Wetzel
Keyword(s):  
Plant Size ◽  
Plant Age ◽  
Insect Community ◽  
Big Sagebrush ◽  
Gall Insect

Banking Wyoming big sagebrush seeds

2013 ◽  
Vol 14 (1) ◽  
pp. 60-70 ◽  
Author(s):  
R. P. Karrfalt ◽  
N. Shaw
Keyword(s):  
Big Sagebrush ◽  
Wyoming Big Sagebrush

Effect of fungicide on Wyoming big sagebrush seed germination

2011 ◽  
Vol 12 (3) ◽  
pp. 263-267 ◽  
Author(s):  
R. D. Cox ◽  
L. H. Kosberg ◽  
N. L. Shaw ◽  
S. P. Hardegree
Keyword(s):  
Seed Germination ◽  
Big Sagebrush ◽  
Wyoming Big Sagebrush

Diseases of perennial bean grasses in Western Siberia

2020 ◽  
Author(s):  
Lyudmila Ashmarina
Keyword(s):  
Western Siberia ◽  
Weather Conditions ◽  
Plant Age ◽  
Intensity Of Development ◽  
Resistance Of Varieties

The directions and results of many years of research on the development and prevalence of diseases on perennial leguminous grasses (meadow clover, pannonian clover, sainfoin, sowing alfalfa) in Western Siberia are presented. A whole range of diseases was revealed, the intensity of development, which depends on weather conditions, resistance of varieties, plant age, etc.

Hydraulic Conductivity of Cotton Roots as Influenced by Plant Age and Rooting Medium

1991 ◽  
Vol 83 (1) ◽  
pp. 264-266 ◽  
Author(s):  
G. S. Brar ◽  
B. L. McMichael ◽  
H. M. Taylor
Keyword(s):  
Hydraulic Conductivity ◽  
Plant Age ◽  
Rooting Medium

scholarly journals Effects of Plant Age and Root Damage on Internalization of Shiga Toxin-Producing Escherichia coli in Leafy Vegetables and Herbs

Horticulturae ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 68
Author(s):  
Yi-Ju Wang ◽  
Amanda J. Deering ◽  
Hye-Ji Kim
Keyword(s):  
Escherichia Coli ◽  
Plant Species ◽  
Shiga Toxin ◽  
Production Systems ◽  
Plant Age ◽  
Leafy Vegetables ◽  
Root Damage ◽  
Hygiene Practices ◽  
Hydroponic Systems ◽  
Stx1 Gene

Our previous study reported that fresh produce grown in aquaponic and hydroponic systems can pose potential food safety hazards due to an accidental introduction of contaminated fish and cross-contamination between the systems. In this study, we examined the effects of plant species and age on the likelihood and level of internalization of Shiga toxin-producing Escherichia coli (STEC) in aquaponic and hydroponic systems. Four plant species, basil (Ocimum basilicum L. cv. Genovese), cilantro (Coriandrum Sativum L.), lettuce (Lactuca sativa cv. Cherokee), and kale (Brassica oleracea var. sabellica), received root damage treatment as seedlings before transplanting or mature plants at three weeks after transplanting by cutting off 1-cm tips of one-third of the roots. Enrichments and selective media were used for the isolation, and presumptive positive colonies were confirmed by PCR for the presence of stx1 gene in plant tissues, recirculating water, and fish feces collected at four weeks after transplanting. In hydroponic systems, STEC was found neither in the solution nor in the roots and leaves of all four plant species, possibly through improved sanitation and hygiene practices. However, consistent with our previous findings, STEC was found in the water, on the plant roots, and in the fish feces in aquaponic systems, even after thorough sanitation prior to the study. Regardless of plant age, STEC was internalized in the roots of all plant species when the roots were damaged, but there was no difference in the degree of internalization with STEC among plant species. STEC was present in the leaves only when seedlings received root damage treatment and were grown to maturity, indicating that root damage allows STEC to internalize in the roots within a week, but a longer period is required for STEC to internalize into the leaves. We concluded that root damage on seedlings can cause the internalization of E. coli O157:H7 in the edible parts of leafy vegetables and herbs in soilless production systems.

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