Biological Effects of Alginite on Tomato Plants (Lycopersicon esculentum) and Some Insects (Leptinotarsa decemlineata, Galleria mellonella and Halyomorpha halys)

An application of potassium nitrate or urea to the soil of detopped potted tomato plants [Lycopersicon esculentum Mill.] increased the rate of exudation from the stumps of the plants from 100 to over 300% and increased the concentration of 2-chloro-4-ethylamino-6-isopropylamino-s-triazine [atrazine] in this augmented exudate from 9 to 40%. Atrazine applied to the soil at 2:00 PM was detected in the stump exudate within 10 min and with an application of 3500 μg per pot it was approaching its maximum concentration by the end of 3 hr. The build-up in the concentration of atrazine in the exudate occurred at a faster rate in plants treated with potassium nitrate than in water control plants. Increasing the soil temperature from 10 to 30 C increased the rate of exudation and at each temperature an application of potassium nitrate or of urea increased the concentration of atrazine in the augmented exudate. In addition to atrazine, 2-chloro-4,6-bis(isopropylamino)-s-triazine [propazine], 2-methoxy-4,6-bis(isopropylamino)-s-triazine [prometone], and 2-methoxy-4-ethylamino-6-isopropylamino-s-triazine [atratone] were applied at 1750 and 3500 μg/pot. The concentration of these triazines in the exudate increased directly with their solubility in water. An application of urea increased the concentration of all four triazines in the exudate.

Download Full-text

Breeding the predatory bug Podisus maculiventris Say to protect potatoes from Leptinotarsa decemlineata Say

E3S Web of Conferences ◽

10.1051/e3sconf/202128503012 ◽

2021 ◽

Vol 285 ◽

pp. 03012

Author(s):

Mariya Nefedova

Keyword(s):

Leptinotarsa Decemlineata ◽

Galleria Mellonella ◽

Tenebrio Molitor ◽

Climatic Conditions ◽

Podisus Maculiventris ◽

Artificial Reproduction ◽

Potato Beetle ◽

Leptinotarsa Decemlineata Say ◽

The Russian Federation ◽

Selection Of

The predator Podisus maculiventris Say is a representative of the order Hemiptera, family Pentatomidae. This insect is promising in the battle against the Colorado potato beetle Leptinotarsa decemlineata Say. For the successful use of P. maculiventris in the climatic conditions of the Russian Federation and other countries where this predator isn’t found, it is necessary to develop methods of its artificial reproduction. The paper provides information on the selection of food based on the use of phytophagous insects and pests. Among the subjects Galleria mellonella L. caterpillars, Tenebrio molitor L. larvae and pupae, Ephestia kuehniella Zll. caterpillars, as well as Zophobas morio Fabr larvae were used. As a result of the experiment, T. molitor was recognized as the most effective insect prey in terms of biological and economic indicators. When using Tenebrio molitor, the imago yield of P. maculiventris amounted to 81.0-90.5%, which was the best indicator in comparison with other options.

Download Full-text

Ethylene emission and PR protein synthesis in ACC deaminase producing Methylobacterium spp. inoculated tomato plants (Lycopersicon esculentum Mill.) challenged with Ralstonia solanacearum under greenhouse conditions

Plant Physiology and Biochemistry ◽

10.1016/j.plaphy.2013.03.002 ◽

2013 ◽

Vol 67 ◽

pp. 95-104 ◽

Cited By ~ 34

Author(s):

Woojong Yim ◽

Sundaram Seshadri ◽

Kiyoon Kim ◽

Gillseung Lee ◽

Tongmin Sa

Keyword(s):

Protein Synthesis ◽

Lycopersicon Esculentum ◽

Ralstonia Solanacearum ◽

Acc Deaminase ◽

Tomato Plants ◽

Pr Protein ◽

Lycopersicon Esculentum Mill ◽

Ethylene Emission

Download Full-text

Effect of crezacin and humic acid on growth and physiological aspects of tomato plants (Lycopersicon esculentum)

Journal of Applied Horticulture ◽

10.37855/jah.2019.v21i01.11 ◽

2019 ◽

Vol 21 (01) ◽

pp. 61-66

Author(s):

M.M. Abdelkader ◽

M.Y. Puchkov ◽

M.A. Lysakov ◽

E.G. Loktionova ◽

A.A. Suliman

Keyword(s):

Humic Acid ◽

Lycopersicon Esculentum ◽

Tomato Plants

Download Full-text

Effects of a fungicide on the morphology and viability of pollens of tomato (Lycopersicon esculentum Mill.)

Bangladesh Journal of Botany ◽

10.3329/bjb.v38i2.5134 ◽

1970 ◽

Vol 38 (2) ◽

pp. 115-118 ◽

Cited By ~ 1

Author(s):

Ilkay Öztürk Çali ◽

Feyza Candan

Keyword(s):

Lycopersicon Esculentum ◽

Phytophthora Infestans ◽

Key Words ◽

Pollen Morphology ◽

Pollen Viability ◽

Polar View ◽

Control Group ◽

Recommended Dosage ◽

Tomato Plants ◽

Equatorial View

Effects of Agri Fos 400 (Mono and di-potassium phosphanate), a fungicide widely used on tomatoes grown in greenhouses in Turkey against Phytophthora infestans were studied on the morphology and viability of tomato (Lycopersicon esculentum Mill.) pollens. The fungicide was applied on tomato plants at recommended dosage (4 ml/l water) and double the recommended dosage (8 ml/l water). The fungicide caused changes in the morphological structures of pollens. Some pollen morphological structures that are not observed in the control group were encountered in the pollens due to application of Agri Fos 400 in equatorial view at 8 ml/l and in polar view at 4 ml/l. Level of pollen viability decreased as the dosage increased. Key words: Fungicide; Phytophthora infestans; Tomato; Pollen morphology; Viability DOI: 10.3329/bjb.v38i2.5134 Bangladesh J. Bot. 38(2): 115-118, 2009 (December)

Download Full-text

Metabolism of 2-(α-naphthoxy)-N,N-diethyl propionamide in Tomato

Weed Science ◽

10.1017/s004317450003157x ◽

1973 ◽

Vol 21 (1) ◽

pp. 11-15 ◽

Cited By ~ 7

Author(s):

J. J. Murphy ◽

Janice Didriksen ◽

R. A. Gray

Keyword(s):

Lycopersicon Esculentum ◽

Water Soluble ◽

Tomato Plants ◽

Mechanical Harvester ◽

Ring Hydroxylation

Metabolism of the herbicide 2-(α-naphthoxy)-N,N-diethyl propionamide (R-7465) by tomato plants (Lycopersicon esculentum Mill. ‘Mechanical Harvester’) was investigated. Ring-labeled R-7465-14C was taken up rapidly by the roots and distributed throughout the leaves within 8 hr. R-7465 was converted primarily into water soluble metabolites. The principal metabolite was identified as a hexose conjugate of 2-(α-naphthoxy-4-hydroxy)-N,N-diethyl propionamide. This metabolite represented 47% of the soluble radioactivity in the plant. A different hexose conjugate of 2-(α-naphthoxy-4-hydroxy)-N,N-diethyl propionamide together with a hexose conjugate of 2-(α-naphthoxy-4-hydroxy)-N-ethyl propionamide accounted for another 22% of the radioactivity. Nonmetabolized R-7465 was found to represent only 5% of the total soluble radioactivity. Other identified metabolites included 2-(α-napthoxy)-N-ethyl propionamide, 2-(α-naphthoxy-5-hydroxy)-N,N-diethyl propionamide, and 1,4-naphthoquinone. None of these metabolites individually represented more than 3% of the soluble radioactivity in the plants. Ring hydroxylation and N-dealkylation appeared to be the initial steps in detoxification of R-7465 followed by conjugation with sugars.

Download Full-text

Uptake, Translocation, and Degradation of Diphenamid in Plants

Weed Science ◽

10.1017/s0043174500050931 ◽

1971 ◽

Vol 19 (6) ◽

pp. 639-643 ◽

Cited By ~ 11

Author(s):

S. W. Bingham ◽

Richard Shaver

Keyword(s):

Lycopersicon Esculentum ◽

Cynodon Dactylon ◽

Radioactive Material ◽

Labeled Compounds ◽

Tomato Plants ◽

Euonymus Alatus

The rate of uptake and translocation ofN,N-dimethyl-2,2-diphenylacetamide (diphenamid-14C) varied among different species. Apoplastic translocation of diphenamid occurred rapidly in tomato (Lycopersicon esculentumMill.) seedlings, intermediate in bermudagrass (Cynodon dactylonL. ‘328’) and slowly in winged euonymus [Euonymus alatus(Thunb.) Seib. ‘compacta’]. Diphenamid-14C was dealkylated to give N-methyl-2,2-diphenylacetamide (MDA) in both winged euonymus and tomato plants. After 8 days, approximately 60% of the benzene-extractable labeled compounds from both plants was MDA and 39% was diphenamid. However, less of the radioactive material in winged euonymus was extracted.

Download Full-text

WATER QUALITY IN AN INTEGRATED CULTURE OF WHITE SHRIMP (Litopenaeus vannamei)-TOMATO (Lycopersicon esculentum) USING LOW SALINITY GROUNDWATER IN SONORA, MEXICO

Experimental Agriculture ◽

10.1017/s0014479713000690 ◽

2013 ◽

Vol 50 (2) ◽

pp. 306-319 ◽

Cited By ~ 5

Author(s):

M. MARTIN MARISCAL-LAGARDA ◽

FEDERICO PÁEZ-OSUNA ◽

JOSÉ LUIS ESQUER-MÉNDEZ ◽

ILDELFONSO GUERRERO-MONROY ◽

ALONSO-ROMO DEL VIVAR ◽

...

Keyword(s):

Water Quality ◽

Lycopersicon Esculentum ◽

Water Consumption ◽

Litopenaeus Vannamei ◽

Culture System ◽

White Shrimp ◽

Semiarid Region ◽

Total N ◽

Tomato Plants ◽

Low Salinity

SUMMARYThe aim of this work was to test the performance of a shrimp-tomato culture system (STCS) in an arid-semiarid region (Sonora, Mexico) and to evaluate the water quality variables and phytoplankton variation of shrimp effluent and that water returning from the tomato module culture. The field study was conducted using groundwater and consisted of three circular tanks that were used for shrimp (Litopenaeus vannamei) farming and were coupled to one culture module of tomato plants (Lycopersicon esculentum). The shrimp effluent was used to irrigate the tomato plants. The yield was 11.1±0.2 kg shrimp per tank (3.9±2.0 ton ha−1) and 33.3 kg tomatoes per 45 plants (36.1±2.3 ton ha−1). During the culture, the concentrations of nutrients were (mg L−1): total N-ammonia, <0.001–0.848; N-nitrite, <0.001–1.45; N-nitrate, 5.2–172.2; dissolved reactive-P, <0.005–0.343. A total of 35 taxa belonging to three different algal classes were observed: Chlorophyta (87 to 98%), Bacilliariophyta (2 to 9%) and Cyanophyta (0–3%). This STCS allowed us to harvest the equivalent of 3.9 ton ha−1 of shrimp and 36.3 ton ha−1 of tomatoes, with a water consumption of 2.1 m3 per kg harvested of both products.

Download Full-text