The use of differential thermal analysis in determining the critical temperatures of sweet cherry (Prunus avium L.) flower buds at different stages of bud burst

Author(s):  
Ozkan Kaya ◽  
Cafer Kose ◽  
Muge Sahin
HortScience ◽  
1993 ◽  
Vol 28 (8) ◽  
pp. 831-832
Author(s):  
Sorkel A. Kadir ◽  
Ed L. Proebsting

Differential thermal analysis (DTA) was used to measure deep supercooling in flower buds of Prunus dulcis Mill., P. armeniaca L., P. davidiana (Carr.) Franch, P. persica (L.) Batsch, three sweet cherry (P. avium L.) selections, and `Bing' cherries (P. avium L.) during Winter 1990-91 and 1991-92. Low temperatures in Dec. 1990 killed many flower buds. After the freeze, dead flower primordia continued to produce low-temperature exotherms (LTEs) at temperatures near those of living primordia for >2 weeks. In Feb. 1992, cherry buds that had been killed by cooling to -33C again produced LTEs when refrozen the next day. As buds swelled, the median LTE (LTE50) of dead buds increased relative to that of living buds, and the number of dead buds that produced LTEs decreased. LTE artifacts from dead flower priimordia must be recognized when DTA is used to estimate LTE50 of field-collected samples.


HortScience ◽  
1994 ◽  
Vol 29 (2) ◽  
pp. 104-106 ◽  
Author(s):  
Sorkel A. Kadir ◽  
Edward L. Proebsting

In Dec. 1990, sweet cherry (Prunus avium L.) selections varied in floral bud kill from 9% to 92% following exposure to severe cold. In the following winter, the hardiness of two hardy and two tender selections was analyzed by differential thermal analysis (DTA) to screen selections for hardiness. In a mild winter, when buds remained at their minimum hardiness level, the hardy selections consistently were > 2C hardier than the tender selections. About one-half of that hardiness difference was associated with differences in tissue water content, the other half with unknown factors. Buds of the tender selections began to develop earlier and bloomed earlier than the hardy selections. DTA analysis of floral bud populations separated selections that clearly differed in floral bud hardiness.


2021 ◽  
Vol 175 ◽  
pp. 111494
Author(s):  
Excequel Ponce ◽  
Blanca Alzola ◽  
Natalia Cáceres ◽  
Madeline Gas ◽  
Catalina Ferreira ◽  
...  

2008 ◽  
Vol 4 (4) ◽  
pp. 897-910 ◽  
Author(s):  
James W. Olmstead ◽  
Audrey M. Sebolt ◽  
Antonio Cabrera ◽  
Suneth S. Sooriyapathirana ◽  
Sue Hammar ◽  
...  

2017 ◽  
Vol 8 ◽  
Author(s):  
Xiliang Qi ◽  
Congli Liu ◽  
Lulu Song ◽  
Yuhong Li ◽  
Ming Li

Author(s):  
Michaela Benková ◽  
Iveta Čičová ◽  
Daniela Benedikova ◽  
Lubomir Mendel ◽  
Miroslav Glasa

Abstract The work is focused on the evaluation of variability of morphological and pomological characteristics of several old sweet cherries (Prunus avium L.) that were found in different Slovak regions. The experimental work has been performed during two years, 2014 and 2015. The following characteristics according to the descriptor list of subgenus Cerasus were evaluated - period of flowering and ripening, morphological characteristics of the flowers, fruit size, fruit weight, and quality parameters. The results showed high variability of evaluated accessions. From the 13 surveyed localities, the most valuable accessions were found in the locality Hornį Streda - places Čachtice, Krakovany, Nitra, and Brdárka. During the collecting expeditions, 170 accessions of sweet cherry, with fruit of the different quality were found. The most interesting accessions were grafted onto rootstocks with different intensity of growth (Prunus avium L., Prunus mahaleb L., and ‘Gisela5’). Some of the selected cherry accessions can be used for commercial growing after tests, while some of them can be used only for collection of genetic resources and as potential genitors in breeding programmes.


1960 ◽  
Vol 40 (4) ◽  
pp. 707-712 ◽  
Author(s):  
W. H. A. Wilde

Little cherry virus disease of sweet cherry (Prunus avium L.) was transmitted under screenhouse conditions by 3 species of leafhoppers (Homoptera: Cicadellidae) out of 24 species tested. Macrosteles fascifrons (Stal), the 6-spotted leafhopper, transmitted the disease in seven tests; Scaphytopius acutus (Say), the sharp-nosed leafhopper, transmitted it once; and Psammotettix lividellus (Zett.) transmitted it once. The transmissions were made from diseased sweet cherry trees of the variety Lambert to indicators of the varieties Star or Sam. With the exception of 1 transmission, 2 to 4 years were necessary following inoculation for unmistakable expression of symptoms in the indicators. M. fascifrons was also implicated in 18 successful transmissions to mature sweet cherry trees grown in the open.


2019 ◽  
pp. 217-224
Author(s):  
Ulas Senyigit ◽  
Stanisław Rolbiecki ◽  
Roman Rolbiecki ◽  
Anna Figas ◽  
Barbara Jagosz ◽  
...  

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