. "P(GA526/98/0537), Z(MSM 434100005)" . "RIV/62156489:43410/00:47101018!RIV/2001/MSM/434101/N" . "CZ - \u010Cesk\u00E1 republika" . . . . "Resistance of birch Betula pendula buds that terminated endogenous dormancy to temperatures of -4 \u00B0C and -11 \u00B0C was studied in laboratory conditions."@en . "Kula, Emanuel" . . . . "frost; buds; birch; Betula pendula Roth."@en . . "127" . "Reakce pupen\u016F b\u0159\u00EDzy na mr\u00E1z" . "Reakce pupen\u016F b\u0159\u00EDzy na mr\u00E1z" . "Odolnost pupen\u016F b\u0159\u00EDzy Betula pendula Roth. uvoln\u011Bn\u00FDch z endogenn\u00ED dormance k teplot\u00E1m -4\u00B0C a -11\u00B0C byla sledov\u00E1na v laboratorn\u00EDch podm\u00EDnk\u00E1ch. Pupeny se sumou efektivn\u00EDch teplot (SET) 31,3\u00B0C ra\u0161ily po 10 a 20 hodinov\u00E9 expozici v -11\u00B0C stejn\u011B jako kontroln\u00ED (94%) a po 40 hodin\u00E1ch (57%). Pupeny se SET 57\u00B0C byly citliv\u00E9 k teplot\u011B -11\u00B0C, ale sn\u00E1\u0161ely dlouhodob\u00E9 p\u016Fsoben\u00ED teploty -4\u00B0C. V letech 1997 a 1998 v zimn\u00EDm obdob\u00ED bylo zaznamen\u00E1no 14 a 10 dn\u00ED, kdy poklesly b\u011Bhem noci maxim\u00E1ln\u00ED denn\u00ED teploty o 10 - 14\u00B0C. V r. 1997, kdy porosty b\u0159\u00EDzy velkoplo\u0161n\u011B nevyra\u0161ily, byl tento rozd\u00EDl nejv\u00FDrazn\u011Bj\u0161\u00ED (z 8,1\u00B0C na -4,1\u00B0C), p\u0159i\u010Dem\u017E SET dosahovala pouze 2,7\u00B0C. V r. 1998, kdy se probl\u00E9m nera\u0161\u00EDc\u00EDch b\u0159\u00EDz nevyskytoval, byl zaznamen\u00E1n pokles teploty z 12,3\u00B0C na -1,8\u00B0C a z 5\u00B0C na -6,7\u00B0C p\u0159i SET 57\u00B0C." . "Reakce pupen\u016F b\u0159\u00EDzy na mr\u00E1z"@cs . "[8445D639AC97]" . "1"^^ . "3" . "Reakce pupen\u016F b\u0159\u00EDzy na mr\u00E1z"@cs . "6"^^ . "Journal of Forest Science" . "724401" . "46" . . . "Responses of birch buds to frost"@en . . "1212-4834" . "1"^^ . . "Kula, Emanuel" . "RIV/62156489:43410/00:47101018" . . . . . "Responses of birch buds to frost"@en . "43410" . .