Premium
Control of purple spot of loquat fruit ( Eriobotrya japonica ) by means of mineral compounds
Author(s) -
GARIGLIO N,
MARTINEZFUENTES A,
MESEJO C,
AGUSTÍ M
Publication year - 2005
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2005.040145.x
Subject(s) - eriobotrya , japonica , biology , flesh , calcium nitrate , calcium , sugar , horticulture , nitrate , potassium , sucrose , botany , food science , chemistry , ecology , organic chemistry
Summary Treatments to control purple spot of loquat fruit ( Eriobotrya japonica ) were tested based on the hypothesis that the disorder appears as a consequence of water unbalance between flesh and epidermal tissues caused by their different ability for sugar accumulation. Calcium nitrate, calcium chloride, Ca‐EDTA, ammonium nitrate and potassium nitrate at a concentration of 150 m m applied 2 weeks before fruit colour break reduced significantly the proportion of purple‐spotted fruit, giving rise to a reduction of water potential of the epidermal tissue that allows it to retain water. The most favourable date of treatment was during the 2 weeks prior to fruit colour break.