Simazine and Phosphorus Interactions in Red Pine Seedlings

Dhillon, P. S.; Byrnes, W. R.; Merritt, C. M.

doi:10.2307/4041003

Cited by 9 publications

(5 citation statements)

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“…Herbicide-phosphorus interactions have been reported by Dhillon et ale (4), Upchurch et ale (16), and Adams…”

Section: Introductionmentioning

confidence: 83%

Herbicide and Inorganic Phosphate Influence on Phytase in Seedlings

Penner

1970

Weed sci.

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Phytase activity increased 2 to 3 fold in barley (Hordeum vulgareL.), 6 fold in corn (Zea maysL.), and 12 fold in squash (Cucurbita maximaDuchesne) seedlings 2 days after the initiation of germination in the dark. Most of the phytase was found in the embryo of the seed, presumably in the cotyledon(s). Gibberellic acid and benzyladenine supplied during germination exerted only limited influence on the development of phytase in these seedlings. Of the herbicides studied, only sodium arsenite exerted an influence on phytase activityper sethat was of physiological significance. The presence of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine), 3-amino-2,5-dichlorobenzoic acid (amiben), 2-chloro-N-isopropylacetanilide (propachlor), 2,6-dichlorobenzonitrile (dichlobenil), or α,α,α-trifluoro-2,6-dinitro-N-N-dipropyl-p-toluidine (trifluralin) in the culture solution during germination partially inhibited the development of phytase activity. The herbicidal inhibition was enhanced if potassium phosphate at a non-inhibitory level also was present in the culture solution. The interaction of atrazine and amiben with phosphorus was not due to increased internal concentrations of inorganic phosphorus to a level inhibitory to the development of phytase activity.

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“…Herbicide-phosphorus interactions have been reported by Dhillon et ale (4), Upchurch et ale (16), and Adams…”

Section: Introductionmentioning

confidence: 83%

Herbicide and Inorganic Phosphate Influence on Phytase in Seedlings

Penner

1970

Weed sci.

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“…There were no significant interactions of P levels and herbicides (Figures 1 and 2). Dhillon (18) had studied the interaction of simazine and P and showed that low concentrations of 5 to 10 ppm of simazine with P fertilization increased the growth of red pine seedlings·while higher recorded in ordinary freshwater bring about changes in algae growth. On the other hand, the presence of herbicides might have induced a detrimental effect on the P uptake which in turn could reduce the growth rates.…”

Section: Discussionmentioning

confidence: 99%

The effects of nutrient, pH and herbicide levels on algal growth

1981

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“…The sum of squares of treatments were separated into salts, herbicides, and saltherbicide effects to determine statistically if there was a significant interaction (20). The data were also analyzed to determine if the effect of the combination salinityherbicide was an additive, antagonistic, or synergistic response (9). The expected values of salinity-herbicide combinations were compared statistically to the observed values to determine if there was a significant difference between them.…”

Section: Methodsmentioning

confidence: 99%

“…The interaction of simazine and phosphorus in red pine (Pinus resinosa Ait.) seedlings showed an increase of 32 P uptake at 5 to 10 ppmw of simazine but an inhibition at 15 to 20 ppmw (9). Studies of the interaction of calcium and 2,4-0 [(2,4-dichlorophenoxy)acetic acid] indicate the possible contribution of calcium to the uptake of 2,4-0 (19).…”

Section: Introductionmentioning

confidence: 98%

Salinity Effects with EPTC and CDEC in Tomato (Lycopersicon esculentum) and Lettuce (Lactuca sativa)

Acosta-Nunez

Ashton

1981

Weed sci.

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The combination of salts at the approximate ratio found in saline irrigation water, (NaCl 41.9 mM, CaCl220.9 mM, and MgCl2.6H2O 10.5 mM), with either 1 mM EPTC (S-ethyl dipropylthiocarbamate) or 0.1 mM CDEC (2-chloroallyl diethyldithiocarbamate) induced a greater reduction of root length, shoot length, and fresh weight of tomato (Lycopersicon esculentumMill. ‘VF-315’) relative to either factor alone. The osmotic pressure of this salt solution is 0.40 MPa (mega Pascal), which is equivalent to 4.0 bar or ca. 4.0 atm. Similar results were found in lettuce (Lactuca sativaL. ‘Great Lakes–659’) using salts at 0.30 MPa (NaCl 31.4 mM, CaCl215.7 mM, and MgCl2.6H2O 7.3 mM) combined with either 0.75 mM EPTC or 0.2 mM CDEC. In tomato, the inhibition was additive for each parameter measured. In lettuce, however, the effect on fresh weight and shoot length was synergistic and the effect on root length was additive. Calcium chloride was the single salt component of the mixture, which when combined with either EPTC or CDEC, induced a significant reduction of root length, shoot length, and fresh weight in tomato relative to either factor alone. No additional reduction in growth was found in lettuce when each individual salt was combined with either EPTC or CDEC.

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Simazine and Phosphorus Interactions in Red Pine Seedlings

Cited by 9 publications

References 0 publications

Herbicide and Inorganic Phosphate Influence on Phytase in Seedlings

Herbicide and Inorganic Phosphate Influence on Phytase in Seedlings

The effects of nutrient, pH and herbicide levels on algal growth

Salinity Effects with EPTC and CDEC in Tomato (Lycopersicon esculentum) and Lettuce (Lactuca sativa)

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