Bioactivity of Leucaena leucocephala Leaves on Meloidogyne incognita and Pesticide Residue in Tomato Fruits

An investigation was conducted for the management of root knot nematode Meloidogyne incognita (Kofoid and White) Chitwood infesting tomato through the application of bio-control agent like Bacillus subtilis, Trichoderma harzianum and Pseudomonas fluorescens. Experiment result revealed that minimum no. of galls/25seedlings (17.50) and maximum seedling height (27.6cm) were observed in Bacillus subtilis @50g/m2 in nursery bed + B. subtilis @ 5kg along with 2.5 tons of FYM/ ha. The highest weight/25seedlings (69.50g) was noticed in the B. subtilis @50g/m2 in nursery bed + B. subtilis 2.5kg along with 2.5 tons of FYM/ha. The highest growth of the plant at 45 DAT (49.2cm) and at harvest (81.2cm) and maximum fresh (711.3g) and dry weight (265g) was found in B. subtilis @50g/m2 in nursery bed + B. subtilis 2.5kg along with 2.5 tons of FYM/ha. B. subtilis @50g/m2 in nursery bed + B. subtilis 2.5kg along with 2.5 tons of FYM/ha exhibited lowest gall index (1.2/plant) and highest reduction of nematode population and provided highest yield of tomato fruits (335.75q/ha).

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REACTION OF LEUCAENA LEUCOCEPHALA TO POPULATIONS OF MELOIDOGYNE INCOGNITA AND M. JAVANICA FROM PUERTO RICO

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v70i2.7088 ◽

1969 ◽

pp. 157-158

Author(s):

Nydia E. Vicente ◽

Nelia Acosta ◽

Eduardo C. Schröder

Keyword(s):

Puerto Rico ◽

Meloidogyne Incognita ◽

Leucaena Leucocephala

REACTION OF LEUCAENA LEUCOCEPHALA TO POPULATIONS OF MELOIDOGYNE INCOGNITA AND M. JAVANICA FROM PUERTO RICO

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Nematicidal effects of Leucaena leucocephala and Gliricidia sepium extracts on Meloidogyne incognita infecting okra

Journal of Agricultural Sciences Belgrade ◽

10.2298/jas0701053a ◽

2007 ◽

Vol 52 (1) ◽

pp. 53-63 ◽

Cited By ~ 4

Author(s):

O.K. Adekunle ◽

A. Akinlua

Keyword(s):

Carboxylic Acid ◽

Phenolic Compound ◽

Meloidogyne Incognita ◽

Leucaena Leucocephala ◽

Gliricidia Sepium ◽

Fruit Weight ◽

Reproduction Rate ◽

Root Knot Nematode ◽

Nematode Reproduction ◽

Aromatic Amide

Two separate but identical greenhouse trials were conducted to investigate the effects of extracts of leaves and roots of Leucaena leucocephala and Gliricidia sepium each at 80,000 mg / kg and 40,000 mg / kg on Meloidogyne incognita on okra. Each potted nine-day old okra seedling was inoculated with 3,000 fresh eggs of M. incognita and 5ml of each of the extracts was added simultaneously around the roots of the seedling. Treatment of okra plant with L. leucocephala and G. sepium extracts resulted in reduced nematode population, reduced galling, reduced nematode reproduction rate and enhanced fruit weight. Chemical analysis revealed that G. sepium leaves contained phenolic compound and carboxylic acid, while the roots showed the presence of aromatic amide, phenolic compound and carboxylic acid. L. leucocephala leaves showed the presence of phenolic compound, aromatic amide and carboxylic acid, while the roots showed the presence of phenolic compound and carboxylic acid. The results of this study suggest that leaf and root extracts of L. leucocephala and G. sepium at the rate of 40,000 mg / kg could be useful in root knot nematode management in vegetable beds.

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Resistance mechanisms ofPrunusrootstocks to root-knot nematode,Meloidogyne incognita

Fruits ◽

10.1051/fruits/2009024 ◽

2009 ◽

Vol 64 (5) ◽

pp. 295-303 ◽

Cited By ~ 1

Author(s):

Hang Ye ◽

Wen-jun Wang ◽

Guo-jie Liu ◽

Li-xin Zhu ◽

Ke-gong Jia

Keyword(s):

Meloidogyne Incognita ◽

Resistance Mechanisms ◽

Root Knot Nematode

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Study of the quality and antioxidant properties of tomatoes (Solanum lycopersicum L.) under different postharvest and dehydration conditions

RECUBRIMIENTO COMESTIBLE CON BASE DE PIÑON MEXICANO (Jatropha curcas) SOBRE LA CALIDAD DE CHAYOTE MINIMAMENTE PROCESADO ◽

10.32854/agrop.vi.1662 ◽

2020 ◽

Vol 13 (9) ◽

Author(s):

María Lorena Luna-Guevara ◽

Teresita González-Sánchez ◽

Adriana Delgado-Alvarado ◽

María Elena Ramos-Cassellis ◽

José Guillermo Pérez-Luna ◽

...

Keyword(s):

Antioxidant Activity ◽

Rural Communities ◽

Antioxidant Properties ◽

Titratable Acidity ◽

Physicochemical Characteristics ◽

Soluble Solids ◽

Convective Drying ◽

Tomato Fruits ◽

Solanum Lycopersicum L ◽

Storage Temperatures

Objective: To study the effect of storage temperatures and dehydration conditions (solar and convective drying; SD, CD), on the quality, physicochemical parameters and antioxidant properties of tomato fruits. Methodology: The physicochemical characteristics pH, titratable acidity, soluble solids (°Bx) and color parameters (L*, a* and b*), were evaluated. The lycopene, carotenoids and antioxidant activity percentages retention of tomatoes fruits stored at 7 and 22 ° C for 5 days and subjected to SD (Temperature (T) of 67 °C and luminescence of 685 lum/sqf) and CD (T 70 °C, flow rates 0.5, 1.0 and 1.5 m/s), were analyzed. Results: The fruits reached humidities of 17 and 15% for SD and CD. The parameters pH, °Bx, L*, a*, b* were highest with 22°C and CD (1.5 m/s). The value of the carotenoids was higher in fruits stored at 7 ° C and subjected to CD (1.0 and 1.5 m/s) and SD with values of 83.85, 85.98 and 99.43%, respectively. The CD (0.5 m/s) and SD improved lycopene (94.37 and 95.14%) and the antioxidant activity with values of 73.06 and 97.21%. Implications: The application of solar dehydration depends on luminescence condition; however, it is inexpensive and environmentally friendly alternative. Conclusions: The results derived in a viable alternative for the conservation and commercialization of tomato fruits in rural communities

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