. Cranberries; : the national cranberry magazine. Cranberries. DIE-BACK OF TERMINAL BUD IN BEN LEAR UNDER NOVASCOTIAN CONDITIONS1 Hall and A. C. Brydon Canada Department of Agriculture Kentville, Nova Scotia During the past two years the performance of the cranberry cul- tivar Ben Lear in Nova Scotia has been somewhat disappointing while the cultivar Stevens has performed remarkably well. Ben Lear has matured its fruit a good two weeks in advance of native selections and Stevens, and the fruit has been of excellent size and color. The prob- lem with Ben Lear is its poor productivity. Abou
. Cranberries; : the national cranberry magazine. Cranberries. DIE-BACK OF TERMINAL BUD IN BEN LEAR UNDER NOVASCOTIAN CONDITIONS1 Hall and A. C. Brydon Canada Department of Agriculture Kentville, Nova Scotia During the past two years the performance of the cranberry cul- tivar Ben Lear in Nova Scotia has been somewhat disappointing while the cultivar Stevens has performed remarkably well. Ben Lear has matured its fruit a good two weeks in advance of native selections and Stevens, and the fruit has been of excellent size and color. The prob- lem with Ben Lear is its poor productivity. About mid-July in 1972 and 1973 the terminal bud withered up and a new one devel- oped from the nearest adventitious bud. The terminal bud so developed (Fig. 1A) never reached the same stage of development by the end of the growing season as was found in Stevens (Fig. IB). An examination of microscopic sections from several buds collected on Nov. 28, 1973, showed that the terminal bud of Stevens reached the normal winter resting stage found in native cranberries (Bell and Burchill 1955) and Stevens (Hall and Newbury 1972); whereas in late fall Ben Lear only reached the stage of development found in other cranberries about the first week of August. The possibility of a fungus attacking this cultivar and causing the condition is being investigated 1. Contribution No. 1526 from the Research Station, Canada Department of Agriculture, Kentville, REFERENCES BELL, H. P. and JANE BURCHILL 1955. Winter resting stages of certain Ericaceae. Can. J. Botany 33 547-561. HALL, I. V. and R. J. NEWBURY. 1972. Floral development in normal and frost-injured cranberries. Hort Science 7: Fig. 1. Cranberry flower primordia development of buds collected from the field on November 28, 1973. A. Ben Lear which are retarded in development and B. Stevens which reach the normal winter resting stage. 200x. 14. Please note that these images are extracted from scanned page images that may have been
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