Evaluación de tratamientos pregerminativos en tomate de árbol (Solanum betaceum Cav.), gulupa (Passiflora edulis Sims f. edulis) y curuba (Passiflora tripartita Kunth var. mollissima)

Forero, Julieth Cristina Mendonza; Hernández, Karol Lizarazo

doi:10.36385/fcbog-1-01

Gulupa (Passiflora Edulis), Curuba (Passiflora Tripartita), Aguacate (Persea Americana) Y Tomate De Árbol (Solanum Betaceum) In 2019

DOI: 10.36385/fcbog-1-01

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Evaluación de tratamientos pregerminativos en tomate de árbol (Solanum betaceum Cav.), gulupa (Passiflora edulis Sims f. edulis) y curuba (Passiflora tripartita Kunth var. mollissima)

Julieth Cristina Mendonza Forero¹,

Karol Lizarazo Hernández²

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Determining conditions for best pollen quality of red-purple tree tomato (Solanum betaceum Cav.) germplasm

Sotomayor

Merino

Viera

2021

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The germination and viability of pollen are characteristics required for fecundation when individuals of different or the same species are crossed. For this reason, assessing these parameters in selected individuals to be used in breeding programs will increase the chances for the obtainment of new progeny. In this study, pollen from different accessions of the red-purple tree tomato (Solanum betaceum Cav.) was used: local cultivar (Morado Puntón), two commercial varieties (Large Red and Oratia Red) and six segregants [(Solanum unilobum x Solanum betaceum) x Solanum betaceum]. Three types of flowers were taken (A-day of anthesis, B-one day after anthesis, and C-two days after anthesis). The pollen was conserved in two temperatures (4° and 22° C) and four storage times (0, 5, 10, 20 days). The percentage of germination and pollen viability of the selected individuals were evaluated. It was observed that the commercial materials showed higher germination percentages than the segregants in flower A and B at a temperature of 4 ° C at all storage times, except for the segregants GT7P47 and GT7P48 at the same temperature on day 0. In addition, high percentages of viability were obtained both in flowers A and B, at both temperatures and at all storage times. However, the immediate use of pollen after it is collected is recommended because better germination is achieved. This study is helpful to improve breeding procedures in the initial stages of directed crosses.

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Determining conditions for best pollen quality of red-purple tree tomato (Solanum betaceum Cav.) germplasm

Sotomayor

Merino

Viera

2021

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Detección molecular de virus en cultivos, plántulas y semillas de gulupa (Passiflora edulis f. edulis) en el oriente de Antioquia

Cardona

García²,

Higuita

et al. 2022

Bioagro

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La gulupa (Passiflora edulisf. edulis) es uno de los frutales con mayor crecimiento en los últimos años y de gran influencia en la economía de Antioquia (Colombia); sin embargo, su cultivo es afectado por diferentes problemas fitosanitarios, especialmente la marchitez por Fusariumoxysporumyenfermedades virales. En este estudio se evaluóla prevalencia de cuatro virus de ARN (SMV, CABMV, PFYMV y CMV) mediante RT-qPCR, virus del género Begomovirusy del badnavirus GBVA por PCR, a partir de muestras sintomáticas (SI) y asintomáticas (AS) obtenidas en 15 lotes, 15 grupos de plántulas (PL) y 15 muestras de semilla sexual en el oriente de Antioquia. Los genomas de los virus fueron ensamblados utilizando secuenciación masiva (HTS) a partir de grupos de muestras (15x). Con excepción de CABMV y begomovirus, los otros virus fueron encontrados en las muestras sintomáticas y asintomáticas, siendo el PFYMV (SI=33,3 % y AS=46,6 %) y SMV (SI=33,3 % y AS=20 %) los de mayor prevalencia,mientrasqueGBVA yCMV sedetectaron enniveles inferiores al26,6 %. Deforma interesante, los cuatro virus detectados se encontraron en evaluaciones sobre brotes de semillasrecién germinadas(SMV=40 %, CMV=13,3 %, PFYMV=86,6 %, GBVA=53,3 %), lo que sugiere que la semilla sexual juega un papel importante en la transmisión de estos virus en gulupa, así como también las plántulas comercializadas en esta región (SMV=86,6 %, CMV=0 %, PFYMV=60 %, GBVA=53,3 %). Mediante HTS fue posible el ensamblaje completo de los genomas de PFYMV, SMV y GBVA. Estos resultados enfatizan la necesidad de generar material certificado por su sanidad viral en gulupa

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Evaluación de tratamientos pregerminativos en tomate de árbol (Solanum betaceum Cav.), gulupa (Passiflora edulis Sims f. edulis) y curuba (Passiflora tripartita Kunth var. mollissima)

Cited by 2 publications

References 0 publications

Determining conditions for best pollen quality of red-purple tree tomato (Solanum betaceum Cav.) germplasm

Determining conditions for best pollen quality of red-purple tree tomato (Solanum betaceum Cav.) germplasm

Detección molecular de virus en cultivos, plántulas y semillas de gulupa (Passiflora edulis f. edulis) en el oriente de Antioquia

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