Caracterização agronômica e fisíco-química de progênies de maracujazeiro azedo (Passiflora edulis Sims) no Distrito Federal

Passion fruit cultivation has acquired great importance in the global market, and Brazil stands out as the largest passion fruit producer and consumer in the world. However, low fruit yield and high disease susceptibility are some of the major issues faced by passion fruit crop, supporting the need of continuous studies focused on the development of high yield varieties, with good fruit quality, and disease resistance. The objective of this study was to evaluate 10 progenies of sour passion fruit regarding their resistance to the bacterial spot disease (Xanthomonas axonopodis pv. passiflorae) and to the passion fruit woodiness virus disease (PWD) (Cowpea aphid-borne mosaic virus CABMV), under greenhouse conditions, as well as to perform agronomic and disease resistance evaluations, under field conditions, at Distrito Federal. For greenhouse disease evaluations, bacteria and virus isolates were mechanically inoculated in the leaves, which were used for disease incidence and severity assessments. Differences between progenies were found for diseases incidence and severity. Rosa Intenso, MSCA, and EC3-0 stood out as the progenies with lowest PWD severity. MAR 20#24 pl. 2 was the only progeny classified as susceptible to PWD whereas the remaining progenies were classified as moderately resistant. Gigante Amarelo pl. 1, Rosa Intenso, and MAR20#24 pl. 2 presented the lowest bacterial spot severity and incidence. However, only Rosa Intenso was classified as moderately susceptible. The remaining progenies were considered susceptible to the bacterial spot disease under the tested conditions. The agronomic evaluation assessed the estimated yield (kg/ha), total number of fruits per hectare, and fruit classification into five categories based on their equatorial diameter. Physical analyses consisted on the evaluation of fruit, pulp, and peel masses (g), fruit length and diameter (mm), fruit length/diameter ratio, pulp yield (%), peel thickness (mm), and number of seeds from 5 fruits per parcel. For progenies disease reaction evaluation, fruits (bacterial spot) and leaves (PWD) were analysed for disease incidence and severity. ECL7, Gigante Amarelo pl. 1, and MAR 20#41 stood out as the progenies with greatest total estimated yields and fruit numbers. MSCA, Gigante Amarelo pl. 1, and MAR 20#41 showed the greatest yields for fruits destined to industry (types first and 1B), whereas MAR 20#21 revealed the highest yield for fruits destined to in natura consumption (1A and 2A). All progenies evaluated under field conditions were considered moderately