On after-ripening of Bartlett pears. II.
نویسندگان
چکیده
منابع مشابه
Temperature and exposure time during ethylene conditioning affect ripening of Bartlett pears.
Freshly harvested early- and mid-season Bartlett pears (Pyrus communis) were treated with ethylene (air plus 10 Pa C(2)H(4)) or air at 5, 10, and 20 degrees C for 24 and 48 h (experiment 1) and at 5 and 10 degrees C for 48, 72, and 96 h and at 20 degrees C for 24 h (experiment 2). Following C(2)H(4) or air treatment at different temperatures and durations, pears were transferred to 20 degrees C...
متن کاملEffect of aminoethoxy analog of rhizobitoxine on ripening of pears.
Ripening reactions in pears (Pyrus communis L.) were differentially affected by an aminoethoxy analog of rhizobitoxine (l-2-amino-4-[2-aminoethoxy]-trans-3-butenoic acid) (AAR). Ethylene production of both ;Anjou' and ;Bartlett' pears was inhibited by AAR. Decrease in firmness, increase in protein N and soluble pectin were delayed by AAR in ;Anjou' but not in ;Bartlett' pears. While loss in mal...
متن کاملEffect of ethylene in the storage environment on quality of ‘Bartlett pears’
The effect of ethylene on the quality of ‘Bartlett pears’ stored at either /1 or 2 8C was examined. Fruit from three different harvest dates were stored for 3 months in 0, 1, 5 or 10 ml l 1 ethylene. Quality attributes, including skin color, firmness, scald and internal browning, were assessed when the fruit were removed from storage and after 4 days ripening at 20 8C. All levels of ethylene in...
متن کاملEffect of girdling above the abscission zone of fruit on 'Bartlett' pear ripening on the tree.
Pear fruit usually soften and develop a melting texture when harvested at the mature green stage and ripened. The reason why the fruit does not fully ripen on the tree is unknown. To clarify this, our attention was directed to the continuous supply of assimilates and/or other substances into the fruit via phloem transport. To determine the effect of inhibiting phloem transport on fruit ripening...
متن کاملPurification and some properties of two polyphenol oxidases from bartlett pears.
Two polyphenol oxidases (enzymes A and B) from Bartlett pear (Pyrus communis) peelings were purified to electrophoretic homogeneity according to polyacrylamide gel by a combination of Sephadex gel filtration, diethylaminoethyl cellulose chromatography and hydroxyl apatite chromatography. While the two enzymes differ electrophoretically at pH 9.3, chromatographically on hydroxyl apatite, and in ...
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ژورنال
عنوان ژورنال: Engei Gakkai zasshi
سال: 1965
ISSN: 1880-358X,0013-7626
DOI: 10.2503/jjshs.34.19