Evaluation of Genetic Variations of Tomato Genotypes (Solanum lycopersicum L.) with Multivariate Analysis

The present investigation was carried out to screen genotypes for resistance to Early blight disease of tomato (Solanum lycopersicum L.) of North Eastern region of India. Field trial was conducted in the Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat during the years 2012-13 and 2013-14 consecutively. The disease severity of tomato genotypes was assessed by 0-5 points scale, percent Disease Incidence (PDI). Of the total materials screened, Sel-35 (TLBRH-6 X Konbilahi) and Sel-19 (TLBRH-6 X Konbilahi) were highly resistant, 7 were resistant, 14 were moderately resistant, 16 were susceptible and 6 were highly susceptible under field condition after inoculation during both years. The genotype having high yield and resistant to early blight was 10/TOLCVRES-3. The genotypes resistant to early blight but having low yield (Sel-35, Sel-19, Sel-9 and Sel-16) may be utilized in future breeding programme for improving yield through selection for higher fruit weight and fruit diameter. Alternatively, they may be used as parents in hybridization or backcrossing programme in order to transfer the gene for resistance to early blight to already adapted high yield varieties.

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Screening of Tomato Genotypes for Early Blight Disease Resistance in Tomato (Solanum lycopersicum L.)

International Journal of Current Microbiology and Applied Sciences ◽

10.20546/ijcmas.2020.910.350 ◽

2020 ◽

Vol 9 (10) ◽

pp. 2909-2914

Author(s):

Suresh Kumar Sah ◽

Anand Kumar Singh ◽

B. K. Singh ◽

Kalyan Barman ◽

A. K. Pal

Keyword(s):

Disease Resistance ◽

Solanum Lycopersicum ◽

Early Blight ◽

Solanum Lycopersicum L ◽

Blight Disease ◽

Tomato Genotypes

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Biomechanics of isolated tomato (Solanum lycopersicum) fruit cuticles during ripening: the role of flavonoids

Functional Plant Biology ◽

10.1071/fp09039 ◽

2009 ◽

Vol 36 (7) ◽

pp. 613 ◽

Cited By ~ 31

Author(s):

Eva Domínguez ◽

Laura España ◽

Gloria López-Casado ◽

Jesús Cuartero ◽

Antonio Heredia

Keyword(s):

Solanum Lycopersicum ◽

Tomato Fruit ◽

Biomechanical Properties ◽

Mechanical Function ◽

Solanum Lycopersicum L ◽

Ripe Stage ◽

Cell Wall Disassembly ◽

Quantitative Contribution ◽

Tomato Genotypes

Flavonoids accumulate in tomato (Solanum lycopersicum L.) fruit cuticles during ripening. Their quantitative contribution to the biomechanical properties of the cuticle is studied in six tomato genotypes which show presence or absence of these compounds at the red ripe stage of fruit development. Tomato cuticles with flavonoids at red ripe showed a dramatic increase of these compounds between mature green and red ripe stages together with a significant increase in the elastic modulus. On the other hand, cuticles without flavonoids displayed a similar biomechanical behaviour at mature green and red ripe stages. The absence of flavonoids could also be related with a predominance of the viscoelastic performance of the cuticle. Thus, the increase of phenolics in tomato fruit cuticles during ripening is correlated with a more rigid cutin network that reinforces the mechanical function of polysaccharides which tend to diminish at this stage due to cell wall disassembly. A role of phenolics as biomechanical modulators of the cuticle behaviour is proposed.

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COMPARATIVE ANATOMICAL AND MORPHOLOGICAL STUDIES OF THE EPIDERMAL AND CORTICAL PARENCHYMA HYPOCOTYL CELLS OF TWO TOMATO GENOTYPES (Solanum lycopersicum L.) UNDER SODIUM CHLORIDE STRESS in vitro

Sel skokhozyaistvennaya Biologiya ◽

10.15389/agrobiology.2016.3.318eng ◽

2016 ◽

Vol 51 (3) ◽

pp. 318-326

Author(s):

L.R. Bogoutdinova ◽

◽

G.B. Baranova ◽

E.N. Baranova ◽

M.R. Khaliluev ◽

...

Keyword(s):

Sodium Chloride ◽

Solanum Lycopersicum ◽

Solanum Lycopersicum L ◽

Morphological Studies ◽

Cortical Parenchyma ◽

Sodium Chloride Stress ◽

Tomato Genotypes

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Evaluación de tres enraizadores comerciales en la producción de plántulas de tomate indeterminado (Solanum lycopersicum (L.) Lam)

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

10.32854/agrop.v12i9.1491 ◽

2019 ◽

Vol 12 (12) ◽

Author(s):

M. Arébalo-Madrigal ◽

J.L. Escalante-González ◽

J.B. Yáñez-Coutiño ◽

M.E. Gallegos-Castro

Keyword(s):

Solanum Lycopersicum ◽

Solanum Lycopersicum L

Objetivo: Evaluar el desarrollo de plántula de tomate indeterminado bajo condiciones protegidas, aplicando tres enraizadores y un testigo para aumentar la producción del cultivo en la región. Diseño/metodología/aproximación: se utilizó bajo un diseño experimental en bloques completamente al azar, el cual consistió de cuatro tratamientos correspondiendo a cada uno de los bloques, donde cada bloque pertenecía a cuatro charolas de unicel de 200 cavidades con sustrato de BM2, con cuatro repeticiones cada uno, teniendo 15 unidades experimentales por tratamiento, sumando un total de 60 unidades experimentales, teniendo un total de 240 plántulas de tomate por todo el experimento. Resultados: Como resultado se obtuvo que el enraizador de Phyto Root tuvo un gran efecto en cuanto al desarrollo de altura, grosor de tallo, numero de hojas, biomasa aérea y peso del cepellón, parámetros importantes que debe tener una plántula para su desarrollo y crecimiento al momento de trasplante a campo. Limitaciones del estudio/implicaciones: El manejo agronómico desde la siembra en charolas, es necesario que sea uniforme en todos los tratamientos y las repeticiones para tener mejores resultados en cuanto el efecto de los enraizadores. Hallazgos/conclusiones: Para obtener plántulas de buena calidad en el momento de trasplante a campo se le recomienda a la empresa y a los productores de plántulas utilizar el tratamiento de Phyto Root, ya que fue la que mejor respuesta tuvo.

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