Plant Physiol. Illumina
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Plant Physiology 59:546-549 (1977)
© 1977 American Society of Plant Biologists

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Articles

Effect of Aminoethoxy Analog of Rhizobitoxine on Ripening of Pears 1

Chien Yi Wang2 and Walt M. Mellenthin

a Mid-Columbia Experiment Station, Oregon State University, Hood River, Oregon 97031

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 malic acid was retarded in `Anjou' pears, rates of citric acid accumulation and malic acid reduction were not affected by AAR in `Bartlett' pears.

2 Present address: Horticultural Crops Marketing Laboratory, Agricultural Marketing Research Institute, ARS, U.S. Dept. of Agriculture, Beltsville, Md. 20705.

1 Technical Paper No. 4357. Oregon Agricultural Experiment Station. This study was supported by the Winter Pear Control Committee, Washington State Tree Fruit Research Commission, and the Hood River Grower-Shipper Association.






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Copyright © 1977 by the American Society of Plant Biologists