In orchards of Japanese quince, weed control is difficult because of the dwarf and spreading habit. of the plant. The dwarf Japanese quince is a poor competitor. Weed control may therefore have a major impact on the profitability of organic cultivation of this crop. 

Home Tree Fruit Production and Pest Management 

Production of fruit for personal consumption allows the homeowner (grower) to decide how much cosmetic damage he or she is willing to accept. With the proper selection of well adapted varieties that have good resistance to insect and disease problems, application of pesticides may be reduced or modified to provide adequate control of pest numbers while preserving beneficial organisms.

Quince rust infects fruit, but not leaves, of most apple cultivars. It infects both leaves and fruit of hawthorn. 'Delicious', which is nearly immune to cedar-apple rust, is highly susceptible to quince rust. 

Fire blight, caused by the bacterium Erwinia amylovora, is a common and very serious bacterial disease. The disease is also referred to as blossom blight, spur blight, fruit blight, twig blight, or rootstock blight – depending on the plant part that is attacked. Erwinia amylovora infects approximately 75 different species of plants, all in the family Rosaceae. 

Fire Blight on Fruit Trees in the Home Orchard 

Fire blight, caused by the bacterium Erwinia amylovora, attacks more than 70 members of the Rose (Rosaceae) family, and is a devastating disease of apples and pears. 

Fruit tree leafroller over winters as an egg. Eggs hatch into tiny larvae in spring from March to as late as mid- May in cooler areas. Larvae feed on leaves for about 30 days and then pupate in a loose cocoon formed in a rolled leaf or similar shelter. 

Partially Purification and Characterization of Polyphenol Oxidase of Quince

Polyphenol oxidase was extracted from quince (Cydonia oblonga) by using 0.1M phosphate bu er, pH 6.8. The polyphenol oxidase of quince was partially purified by (NH4)2SO4 and dialysis. Substrate speci city experiments were carried out with catechol, pyrogallol, L-DOPA, pcresole and tyrosine. 

Non-Covalent Immobilization of Quince Polyphenol Oxidase

A partially purified polyphenol oxidase from quince (Cydonia oblonga) was immobilized on bentonite by simple adsorption at pH 6.8. The properties of the immobilized enzyme were compared to those of the free enzyme. Optimum pH and temperature were determined to be 9.0 and 45C, respectively, showing the alteration of pH and temperature profiles by immobilization.  

Quince Body Moisturiser

Quince Day Cream

Current Top 10 Uncommon Fruits That Have Commercial Potential in the Region

Opportunities in Growing and Marketing of Ethnic and Old-fashioned Fruits, Vegetables, and Herbs

The dominant Anglo- American or European-American ethnic complex has declined sharply from 88 percent of the total population in 1960 to approximately 69 percent today, and is expected to become a minority before 2050. Meanwhile Hispanics have increased from approximately 4 percent in 1960 to 11 percent at present; and at the present rate of increase will constitute about 25 percent of the total U.S. population by 2050.

The fresh use sector accounts for a major part of world pear use. Over the period 2000-02, the United States produced an average of 1.9 billion pounds of pears for all uses, with about 58 percent sold for fresh use.

Horticultural Biotechnology: Challenges for Commercial Development, Horticultural Science Focus, Lychee Production Soars in China, The World of Horticulture, Biodiversity of Tropical African Vegetables, Horticultural Research in the French Agricultural Research, Eighth Int’l Symposium on Plum and Prune Genetics, Breeding and Pomology.

Traditionally, only a handful of quince cultivars have been grown in the United States, but their ranks are swelling thanks to ARS researchers at the National Clonal Germplasm Repository (NCGR) in Corvallis, Oregon. Over the past decade, NCGR scientists have expanded a modest quince collection into one of the world’s finest. 

The natural growth habit of maiden trees of six pear cultivars grafted on either Quince MA (Cydonia oblonga Mill.) or ‘Bartlett’ seedling (Pyrus communis L.) rootstocks was examined over two growing seasons. The factor that most influenced sylleptic shoot formation was cultivar. 

RolB gene (~ 800 bp) was isolated from Agrobacterium rhizogenes in PCR with rolB5kod-rolB3kod primers. The identity of gene was confirmed by sequence analysis. Binary constructs basing on pART27 and pNOV2819 plasmids and containing rolB gene under (a) own promoter sequence, (b) 35S CaMV, and (c) stress-induced PR promoter were prepared and used to transform quince (Cydonia oblonga). 1992 explants derived from clones K.1, K.16 and K.19 were transformed using A. tumefaciens.