Fruit bearing shoot characteristics of apricot and sweet cherry cultivars in Hungary

Abstract

: Our study was carried out on 23 apricot and 9 sweet cherry cultivars in February 2005. Fruiting laterals were classified into four groups (0-10 cm, 10-20 cm, 20-40 cm and >40 cm) and then the density and setting of flower buds were evaluated and expressed as bud/cm. The flower bud density of four types of fruit bearing shoots and the changes in the frost resistance were studied. Shoots were collected from a young orchard in Gone (apricot), Siófok (sweet cherry) and Nagykutas (sweet cherry). There were significant differences among the cultivars in the density of flower buds. The number of flower buds/cm shoot length ranged between 0.91 and 2.20 in the average of the different fruit bearing shoot types on apricot. Based on the results, the bud density of shorter shoots is generally higher on apricot, but this is not valid for all cultivars. For cvs. Magyarkajszi and Ceglédi bíborkajszi, the highest flower bud density was detected on shoots of medium length (10-40 cm). There were fivefold and almost twofold (1.85) differences in bud density among cultivars on shoots shorter than 10 cm length and longer than 40 cm length, respectively. The ratio of the bud densities of the different types of shoots also ranged between wide boundaries. For cvs. Bayoto, Toyesi and Toyiba this ratio was 2.5-3.5, while for cv. Magyarkajszi it was 1.3.
 In the average of fruit bearing shoots on sweet cherry, cv. Bigarreau Burlat (1.10 bud/cm) and cv. Germersdorfi 45 (0.61 bud/cm) had the largest and the lowest flower bud density, respectively. Among the fruit bearing shoots, the largest flower bud density was in the group of 0-10 cm fruiting laterals. Among cultivars, cv. Bigarreau Burlat had the largest bud density. In the groups of n- i 0 cm, 10-20 cm, 20-30 cm and 30-40 cm fruiting laterals, the lowest flower bud density was for cv. Linda, cv. Germersdorfi 45, cv. Ferrovia and cv. Sunburst, respectively. On cvs. Van and Bigarreau Burlat, large numbers of double-set flower buds were observed on the fruit bearing shoots longer than 20 cm. Fruit setting differed on the different types of fruit bearing shoots, with the lowest value measured on above 40 cm shoots. The highest fruit setting was observed on cv. Katalin, while the lowest value was measured on cv. Germersdorfi 3.

Shoot growth pattern and degree of flower bud differentiation in yield potential modelling in apricot

“…Although the introduction of new apricot cultivars has made progress, 'Hungarian Best' is still highly important in some apricot regions (Thurzó et al, 2006;Milatović et al, 2014) and is often used as the test cultivar for comparison purposes. 'Novosadska Rodna' is a new Serbian cultivar which showed good productive results and can be recommended for commercial growing in some specific regions (Milatović et al, 2015).…”

Morphological properties of fruit bearing shoots of apricot cultivars

“…To je u skladu sa rezultatima koje navode Alburquerque et al (2004) da ranocvetne sorte imaju veću gustinu cvetnih pupoljaka u odnosu na srednjecvetne i poznocvetne sorte. Naši rezultati o gustini cvetnih pupoljaka su u skladu sa rezultatima prethodnih istraživanja (Milatović, 2005;Thurzó et al, 2006).…”

“…Sorte kajsije se razlikuju u pogledu gustine cvetnih pupoljaka, a ovaj pokazatelj u značajnoj meri utiče na prinos (Alburquerque et al, 2006;Thurzó et al, 2006;Ruiz i Egea, 2008;Szabó et al, 2013). U uslovima kontinentalne klime poželjno da se gaje sorte koje imaju veću gustinu cvetnih pupoljaka.…”

“…Za razliku od njih, malu gustinu cvetnih pupoljaka su imale sorte Mađarska najbolja, Kasna drjanovska, Kečkemetska ruža i Čačanska pljosnata i kod njih se može primeniti rezidba slabijeg intenziteta. Thurzó et al (2006) su proučavali gustinu cvetnih pupoljaka kod 23 sorte kajsije na rodnim grančicama različite dužine. Prosečan broj cvetnih pupoljaka po 1 cm dužine grane je varirao od 0,91 do 2,20 i bio je najmanji kod sorte Mađarska najbolja, a najveći kod sorte Robada.…”

Fruit bearing shoot characteristics of European plum (Prunus domestica L.) and Japanese plum (Prunus salicina Lindl.) cultivars

“…Kod raznih vrsta i sorti koštičavih voćaka su utvrĎene velike razlike u gustini cvetnih pupoljaka, a ovaj pokazatelj u značajnoj meri utiče na prinos (Alburquerque et al, 2004;Thurzó et al, 2006;Nenadović-Mratinić et al, 2007;Ruiz i Egea, 2008;Milatović et al, 2010). U uslovima kontinentalne klime poželjno je da se gaje sorte koje imaju veću gustinu cvetnih pupoljaka.…”