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  • Author or Editor: E. W. Lyle x
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Abstract

Ethylene (C2H4) was higher in the internal atmosphere of crown gall infected rose bushes than in healthy plants. C2H4 was higher in the crown and root tissues than in the top of normal as well as crown gall infected plants.

Open Access

Abstract

‘Richared Delicious’ trees received 10 μW·cm−2 of red light, peaking at 660 nm for 1.5 or 15 min nightly at midnight from full bloom until the end of “June drop” in early July. Both light treatments reduced abscission during the June drop period. ‘McIntosh’ apple trees received 10 or 200 μW·cm−2 of red light for 15 min at midnight, beginning in mid-August and continuing nightly until mid-October. Preharvest drop of fruit was delayed considerably one year and slightly reduced the 2nd year. With either cultivar, light treatment had no effect on fruit size, fruit quality, or return bloom in either year.

Open Access