Scientific Papers Series B Horticulture

RESULTS AND DISCUSSIONSResults of the phenophases.Regarding phenophases, there were significantdifferences in blooming for up to 3 weeksbetween the two years, for the 'Rhapsody inBlue' variety, which in 2011 was the most tardyof all, at the opposite pole being the ‘ForeverYoung’ variety which has even shown earlinessin blooming in 2012.Also, in the case of leaves, between the twoyears there were differences of up to a week inmost varieties. (Table 1, 2)Table 1. Phenological phases for researched varieties in2011Variety Budding Leafing BloomingAbraham Darby March 15 March 29 May 24Acapella March 15 March 29 May 30Angela March 15 March 29 May 23Caprice de Meilland March 14 March 29 May 24Christoph Columbus March 16 March 31 May 30Forever Young March 15 March 29 May 19Heritage March 15 March 29 May 25Ingrid Bergman March 15 March 29 May 26Red Berlin March 15 March 31 May 26Rhapsody In Blue March 15 March 31 June 7Table 2. Phenological phases for researched varieties in2012VarietyBudding Leafing BloomingAbraham Darby March 26 April 5 May 13Acapella March 26 April 5 May 18Angela March 24 April 4 May 13Caprice de Meilland March 26 April 5 May 14Christoph Columbus March 26 April 5 May 20Forever Young March 24 April 5 May 5Heritage March 26 April 5 May 15Ingrid Bergman March 25 April 5 May 16Red Berlin March 24 April 4 May 13Rhapsody In Blue March 24 April 4 May 13Results of the growth rate study exhibitgrowth averaged during the months of May toNovember.The majority of the varieties showeddifferences in growth between the two years,with some similarities during the spring, whena more intense growth rate was recorded.This growth rate was correlated withtemperatures recorded during the months ofApril and December. (Table 3, Figure 1-11)Table 3. Growth rate in 2011 and 2012Variety Group MayJune July Aug Sept Oct NovAngela2011park rose 37,5 79,3 80 101 132 130,7 135Angela2012park rose 46,7 44 68 53,377,3128,6122,7AbrahamEnglishDarby36,6 48,2 73 43,420,6 25,1rose201169AbrahamDarby2012Heritage2011Heritage2012ForeverYoung2011ForeverYoung2012RhapsodyIn Blue2011RhapsodyIn Blue2012Acapella2011Acapella2012Caprice deMeilland2011Caprice deMeilland2012ChristophColumbus2011ChristophColumbus2012IngridBergman2011IngridBergman2012Englishrose50 55,5 19 27,9 47 60,5 67,2English14,7 45,7 79 117 99,1 37,6 97,6roseEnglish43,2 63,8 69 65,1 83 84,9 91,4rosefloribunda 27,1 35,9 38 10,1 5,3 16 22,4floribunda 18 26,4 6,2 5,6 7,9 7,8 11,5floribunda 34,4 80,3 85 85 96,7 49,7 80,7floribunda 35,7 38,2 27 15,7 25,9 21,3 41,3hybrid tea 38,5 45,4 54 76,7 72,2 20,8 111hybrid tea 47,3 54,2 74 22,8 61,6 79,2 76,5hybrid tea 22,6 45 67 28,1 72,2 39,6 81,7hybrid tea 36,4 60,8 77 22,5 68,5 84,5 81,5hybrid tea 26,5 55 83 41,2 33,4 19,5 93,8hybrid tea 33,6 74,7 62 37,5 38,8 116,1122,2hybrid tea 22,8 50,8 58 23,2 19,8 9,7 79,6hybrid tea 32,8 45,4 14 16,3 30,7 24,3 36,8Red Berlinhybrid tea 21 45,1 50 29,419,9 11,2 60,62011Red Berlinhybrid tea 65,4 65,6 20 48,759,2 59,3 31,82012On the 'Angela' variety, significant growthdifferences were registered between July andOctober (Figure 1).372