SUPERCOOLING IN " DARROW " BLACKBERRY BUDS.

Author(s) : WARMUND M. R., GEORGE M. F., CUMBIE B. G.

Type of article: Article

Summary

DIFFERENTIAL THERMAL ANALYSIS (DTA) EXPERIMENTS WERE CARRIED OUT TO INVESTIGATE FREEZING AT SELECTED STAGES OF DEVELOPME VARIOUS VALUES OF LOW TEMPERATURE EXOTHERMS (LTE'S) WERE DETERMINED ON BUDS COLLECTED BETWEEN NOVEMBER 1985 AND SEPTEMBER 1986, WITH MEDIAN LTE'S OF 252.5, 245, 251 AND 256.5 K (-20.5, -28.0, -22.0 AND -16.5 DEG C) FOR NOVEMBER, JANUARY, MARCH AND SEPTEMBER RESPECTIVELY. INJURY TO THE ENTIRE FLORAL REGION IS ASSOCIATED WITH A SINGLE FREEZING EVENT AT THE EARLY STAGE OF DEVELOPMENT. AS FLORAL DIFFERENTIATION PROGRESSES, INDIVIDUAL PRIMORDIA ARE INJURED INDEPENDENTLY. G.R.S.

Details

  • Original title: SUPERCOOLING IN " DARROW " BLACKBERRY BUDS.
  • Record ID : 1989-0962
  • Languages: English
  • Source: J. am. Soc. hortic. Sci. - vol. 113 - n. 3
  • Publication date: 1988/05
  • Document available for consultation in the library of the IIR headquarters only.

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