English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The establishment of citrus orchards with rootstocks from seed with a low physiological quality has been a recurring problem. Low quality seeds directly affect both the final stand and the time required for seedling production. The irregular maturation of fruits, seed recalcitrance, and the high incidence of fungi, make long term storage difficult, even at low temperatures. This study evaluated the storage potential and the use of fungicide treatments on 'Swingle' citrumelo seeds extracted from fruits collected at two maturation stages, green or ripe. The seeds were subjected to a thermal treatment, treated with Derosal, Thiram or Tecto+Captan fungicides, packaged in impermeable polyethylene bags and stored in a cold chamber for nine months. Every three months, the physiological and sanitary qualities of the seeds were evaluated from germination and sanitary tests and also from enzyme profiles. Seeds from green fruits deteriorated less than those from mature fruits; deterioration increased up to nine months of storage; treatment with the Tecto+Captan mixture gave effective pathogen control and maintained seed quality during storage. The germination of the green and ripe seeds is satisfactory (70%) after three months storage. A formação de pomares com porta-enxertos oriundos de sementes de baixa qualidade fisiológica tem sido um entrave, pois essas influenciam diretamente o estande final e o tempo para a formação de mudas. A desuniformidade de maturação dos frutos, o caráter recalcitrante dessas sementes e a alta incidência de fungos dificultam o armazenamento à longo prazo, mesmo em condições de baixa temperatura. Objetivou-se com a pesquisa investigar o potencial de armazenamento e a utilização de tratamentos fungicidas em sementes de citrumelo 'Swingle', extraídas de frutos colhidos em dois estádios de maturação, verde e maduro. As sementes foram submetidas ao tratamento térmico e, posteriormente tratadas com Derosal, Thiram e Tecto+Captan, embaladas em sacos de polietileno impermeáveis e armazenadas em câmara fria por nove meses. Em intervalos trimestrais, a qualidade fisiológica e sanitária das sementes foi avaliada por meio dos testes de germinação, sanidade e perfis enzimáticos. As sementes obtidas de frutos verdes deterioram-se menos que as de frutos maduros, sendo a deterioração crescente até nove meses de armazenamento; o uso da mistura Tecto+Captan é eficiente no controle de patógenos e mantém a qualidade das sementes e ao três meses de armazenamento a germinação das sementes verdes e maduras é satisfatória (70%)

Storage of 'Swingle' citrumelo seeds in different maturation stages subjected to fungicide treatment