The Effect of Temperature and Bud Type on Rest Completion in 'Redhaven' Peach.

Scalabrelli, Giancarlo; Couvillon, G. A.

doi:10.17660/actahortic.1985.173.13

Cited by 29 publications

(38 citation statements)

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“…It has been reported that warm periods during pre-chilling result in reduced bud break in peaches (Nichols et al, 1974) and that extended chilling results in reductions in the heat requirements of peach buds (Citadin et al, 2001;Scalabrelli and Couvillon, 1986). Furthermore, in our experiment there was signif- Table 4.…”

Section: Comparison Of Calculated and Observed Blooming Dates Of Foursupporting

confidence: 51%

Chilling Requirements and Blooming Dates of Leading Peach Cultivars and a Promising Early Maturing Peach Selection, Momo Tsukuba 127

Sawamura¹,

Suesada²,

Sugiura³

et al. 2017

Hortic J

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A major goal of peach breeding programs in Japan is to develop cultivars with lower chilling requirements than the leading cultivars. Low-chill cultivars can be grown in subtropical as well as temperate regions. We investigated the chilling requirements (chill units; CU), heat requirements (growing degree hours; GDH), and blooming dates of 7 leading Japanese peach cultivars, 3 subtropical low-chill cultivars, and a promising new selection, Momo Tsukuba 127. In general, the CU of the 7 leading cultivars were higher than those of the 3 subtropical cultivars and Momo Tsukuba 127. The chilling and heat requirements were determined for the 3 leading high-chill cultivars ('Akatsuki', 'Hikawahakuhou', and 'Kawanakajimahakutou'), the low-chill cultivar 'Okinawa 1', and Momo Tsukuba 127 during 4 seasons at a single location. The CU for 'Okinawa 1' and Momo Tsukuba 127 were significantly lower than those of the three high-chill cultivars. Because Momo Tsukuba 127 had lower chilling requirements than the 7 leading peach cultivars but higher chilling requirements than the subtropical cultivars, we classified this new selection as a mid-chill variety. We used the CU and GDH, along with local temperature data, to estimate the blooming dates of 4 cultivars and the new selection during 11 seasons at one location. Regression analyses showed high correlations between the calculated and actual blooming dates. We also compared calculated and actual blooming dates for the 3 leading cultivars and Momo Tsukuba 127 at between17 and 21 locations per genotype. A total of 25 locations were used, and these were widely spread over the temperate zones of Japan. The correlations between the calculated and actual blooming dates were close to 1:1. Our results indicated that our CU and GDH values, along with actual temperature data, could be used to reliably estimate the blooming dates of the genotypes. Because of its lower chilling requirements, the new selection, Momo Tsukuba 127, bloomed 7 or more days earlier than the leading peach cultivars in this study.

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Section: Comparison Of Calculated and Observed Blooming Dates Of Foursupporting

confidence: 51%

Chilling Requirements and Blooming Dates of Leading Peach Cultivars and a Promising Early Maturing Peach Selection, Momo Tsukuba 127

Sawamura¹,

Suesada²,

Sugiura³

et al. 2017

Hortic J

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“…After accumulating 600 CH, plants were moved to a heated greenhouse until flowering. For quantification of heat units, the number of growing degree hours (GDH in °C) was calculated by subtracting 5°C (adopted as the minimum temperature that can promote plant growth) from each hourly temperature, and then adding the readings (Scalabrelli and Couvillon, 1986).…”

Section: Thermal Conditions Of Artificial Mild Wintermentioning

confidence: 99%

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

Yamamoto

Katsumi-Horigane

Yoshida

et al. 2010

J. Japan. Soc. Hort. Sci.

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The effects of global warming have been observed in several crops as changes in temperature-dependent processes, such as dormancy in perennial fruit trees. We exposed potted Japanese pear 'Housui' plants to 600 chilling hours (CH) below 7.2°C, which is below the theoretical requirement. Such low chilling accumulation was initiated at different times (three treatments) and carried out during four consecutive seasons in order to observe the influence of these factors on the incidence and severity of floral primordia necrosis, water dynamics, phenological, and morphological changes during dormancy in lateral mixed buds, which is comprised of vegetative and reproductive primordia, obtained from the current season's shoots. The submitted amount of chilling temperatures brought about the release of dormancy stage, regardless of seasonal variations in the duration to accumulate 600 CH, but caused a remarkable increase of floral primordia necrosis and a great increase in the number of floral primordia as a consequence of the development of new inflorescences; however, these morphological changes did not increased number of opened flowers because of the progression of floral primordia necrosis. Consecutive seasons of mild winter conditions anticipated the incidence of floral primordia necrosis. The results obtained from magnetic resonance imaging in the buds of plants subjected to low chilling accumulation showed low water mobility and water content especially in scales compared to plants grown under natural conditions. In contrast, increased water mobility and relative content were observed in specific portions of the bud base in treated buds, which was more accentuated in the mixed buds of plants grown for several seasons under mild winter conditions. Moreover, abnormal functional water movement inside dormant mixed buds might result in the necrosis of floral primordia, giving way to the development of new inflorescences.

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“…Other researchers (SCALABRELLI, COUVILLON 1986) have found that 7.2°C was more effective than 3 or 2°C, where others (PHYLLIS, BUCHANAN 1981) have found that the continuous exposure of trees (var Sungold) to 10°C was as effective for the breaking of dormancy as 7°C.…”

mentioning

confidence: 96%

Adaptation of peach-nectarine varieties to different soil and climatic conditions of Greece

Tsipouridis¹,

Papanikolaou²,

Dc³

2002

Hort. Sci. (Prague)

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Forty two peach-nectarine (Prunus persica [L.] Batsch.) varieties (i.e Spring Time, Precocissima Morettini, Southhaven, Halehaven, Blazing Gold, Cardinal, Gialla Precoce Morettini, Dixired, Fertilia Morettini, Golden Jubilee, Coronet, Red Haven, Red Globe, Cotonia Massima, Morettini 5/14, Peach of Station, Alexander, Early Elberta, Elberta of Middle Season, Beauty of Georgia, J.H. Hale, Late Elberta, Gold Drest, Morettini No. 1, Jerseyland, Desert Gold, Red Cup, Spring Crest, Loring, June Gold, Merril Gem Free, Early Red, Red Skin, Merril Fortyminer, Roubidoux, Fantasia, Sunhaven, Flavour Top, Merril Franciscan, Blake, Fairtime, Fayette) were studied for 12–18 years in three experimental orchards of Peripheral Agricultural Research Station of Rhodes (PARSR). Their degree of adaptation to the soil and climatic conditions of PARSR was evaluated in terms of yield per tree, time of bloom, time of fruit ripening, fruit quality etc. These results have been compared with related experimental data recorded at the Pomology Institute (PI) at Naoussa. The results indicate that: many peach-nectarine varieties with quite high chilling requirements (Loring, Blake) gave satisfactory yield in PARSR, where the mean average of temperatures below 7°C over one decade was found to be 147 hours (range 52–226). Some peach-nectarine varieties in experimental orchards of PARSR ripened more than ten days earlier (Desert Gold, Early Red, Peach of Station, Loring, Merril Gem Free), of others at about the same time (Coronet, Cotonia Massima, Red Skin, Fertilia Morettini, Red Globe) and at others on a later date (Merril Fortyminer, Early Elberta, J.H. Hale, Cardinal, Southhaven) than they would ripen in northern Greece (PI). Similar differences were also found for the time of blooming.

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The Effect of Temperature and Bud Type on Rest Completion in 'Redhaven' Peach.

Cited by 29 publications

References 0 publications

Chilling Requirements and Blooming Dates of Leading Peach Cultivars and a Promising Early Maturing Peach Selection, Momo Tsukuba 127

Chilling Requirements and Blooming Dates of Leading Peach Cultivars and a Promising Early Maturing Peach Selection, Momo Tsukuba 127

“Floral Primordia Necrosis” Incidence in Mixed Buds of Japanese Pear (Pyrus pyrifolia (Burm.) Nakai var. culta) ‘Housui’ Grown under Mild Winter Conditions and the Possible Relation with Water Dynamics

Adaptation of peach-nectarine varieties to different soil and climatic conditions of Greece

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