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Scientific Papers Series B Horticulture

Scientific Papers Series B Horticulture

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In 2012 “Alexander Lucas” produce the largestnumber of vegetative spurs (122), followed byBeurré Bosc“ (80) and the lowest number wasregistered in “Clapp’s Favorite” (table 3).The total length of the flowering shootsregistered the highest value in both years for“Max Red Bartlett” (119.4 cm/tree in 2011 and395.8 cm/tree in 2012) and the lowest value for“Beurré Bosc” (16.8 cm/tree in 2011 and 293.2cm/tree in 2012) (table 2). The varieties “MaxRed Bartlett”, “Conference” and “AbbéFétel” produced over than 300 cm/tree offlowering brindles in 2012 (table 2).The values of offshoots length varied between0 and 26.1 cm/tree in 2011 and 7.8 -107.8cm/tree in 2012 with the highest valueregistered in “Max Red Bartlett” variety in2011 (26.1 cm/tree) and “Alexander Lucas”variety in 2012 (107.8 cm/tree) (table 2).“Alexander Lucas” variety formed the largestnumber of flowering dards in 2011 (67) and“Abbé Fétel” variety in 2012 (33) (table 3).Trees formed also fruit bourses, one of themremained undeveloped others are formed bydifferent shoots as spurs, dards or spurs anddards. “Abbé Fétel” and “Conference” formedconstantly spurs, dards and bourses but thehighest number of bourses with dards wasregistered in 2011 for “Alexander Lucas”variety (99) followed by “Clapp’s Favorite”variety with 54 bourses with dards (table 3).Table 2. Flowering shoots (cm/tree) registered between2011-2012Flowering shoots (cm/tree) Pear variety Brindles Offshoots Total length‘11 ‘12 ‘11 ‘12 ‘11 ‘12A. Fétel 33.1 302.2 11.8 61.8 44.9 364Conf. 27.5 321.7 15.3 14.5 42.8 336.2Beurré Bosc 16.8 213.5 0 7.8 16.8 221.3Clapp Fav. 17.6 271.2 0 22 17.6 293.2Al. Lucas 103.8 250 8.6 107.8 112.4 357.8Max RedBart.93.3 363.1 26.1 32.7 119.4 395.8Figure 3. Long shoots registered (cm/tree) between2011-2012Pear varietyTable 3. Average number/tree and type of vegetative and flowering shootsVegetativeshoots (no/tree)Spurs Flowering shoots (no/tree)Dards Fruit bourses undeveloped with spurs with dards with spurs&dards2011 2012 2011 2012 2011 2012 2011 2012 2011 2012 2011 2012Abbé Fétel 49 51 24 33 3 5 57 6 5 1 4 0Conference 68 54 25 10 0 16 10 61 0 0 0 0Beurré Bosc 54 83 9 5 0 0 0 8 0 0 0 0Clapp’s Favorite 38 50 14 3 0 3 5 2 54 0 0 0Alexander Lucas 45 122 67 24 0 3 5 11 99 0 0 0Max Red Bartlett 39 60 11 22 7 0 54 57 1 8 0 0CONCLUSIONSThe results showed that the studied pearvarieties have capability to growth in Bucharestarea.In term of tree height we registered insignificantdifferences between self rooted varietiesthat could be interpreted as a uniformity ofgrowth of studied cultivars.In 2011 trunk cross section area showed differencesallowing cultivars to be ranked in orderof decreasing vigor: “Abbé Fétel”, “Conference”,“Max Red Bartlett”, “Beurré Bosc”,“Alexander Lucas” and “Clapp’s Favorite”. In264

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