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TOLERANCE OF CONTROLLED ATMOSPHERE STORAGE OF CUT FRASER FIR AND ITS RESPIRATION RATE IN AIR.

Author(s) : BLANKENSHIP S. M., HINESLEY L. E.

Type of article: Article

Summary

CUT ABIES FRASERI BRANCHES TAKEN IN AUTUMN, WINTER OR EARLY SPRING WERE HELD AT 278 K(5 DEG C) FOR 4-6 WEEKS IN NITROGEN ATMOSPHERES CONTAINING 1 OR 3 % O2 OR IN AIR CONTAINING 1, 5, 10, 20, 40 OR 50 % CO2 OR IN NORMAL AIR. CO2 CONCENTRATIONS NOT HIGHER THAN 5 % ACCELERATED NEEDLE LOSS. THERE WAS CONSIDERABLE VARIATION BETWEEN INDIVIDUAL TREES IN TOLERANCE OF HIGHER THAN AMBIENT CO2 CONCENTRATI. BRANCHES DIED IN 1 % O2, BUT, IN 3 %, THEY BEHAVED AS IN AIR ALONE. THE INITIAL DARK RESPIRATION RATE AT 294 K (21 DEGC) WAS ABOUT 4 TIMES HIGHER THAN THAT AT 278 K. RESPIRATION DECREASED FOR APPROXIMATELY 10 DAYS AND STABILIZED AT 14-20 % OF THE INITIAL VALUES. RESPIRATION INCREASED EXPONENTIALLY AS TEMPERATURE INCREASED AFTER STORAGE FROM 278 TO 300 K (5 TO 27 DEG C). (POSTHARVEST NEWS INF., GB., 2, N 3, 1991/06, 1165.

Details

  • Original title: TOLERANCE OF CONTROLLED ATMOSPHERE STORAGE OF CUT FRASER FIR AND ITS RESPIRATION RATE IN AIR.
  • Record ID : 1992-1199
  • Languages: English
  • Source: HortScience - vol. 25 - n. 8
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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