The Effects of Self-incompatibility Control Substances On Yield and Fruit Growth Traits of Pear Pyrus communis L. Cultivar ‘Williams’

2021 ◽  
Author(s):  
Pegah Sayyad-Amin ◽  
Gholamhossein Davarynejad ◽  
Bahram Abedy
Keyword(s):  
Growth Traits ◽  
Pyrus Communis ◽  
Fruit Growth ◽  
Self Incompatibility ◽  
Pyrus Communis L

scholarly journals Irrigation reduction resistance mechanisms in the rapid fruit growth stage of pears (Pyrus communis L.)

2016 ◽  
Vol 34 (1) ◽  
pp. 25-32
Author(s):  
Diana Milena Díaz-Abril ◽  
Javier Enrique Vélez-Sánchez ◽  
Pedro Rodríguez
Keyword(s):  
Defense Mechanisms ◽  
Growth Stage ◽  
Growth Period ◽  
Resistance Mechanisms ◽  
Pyrus Communis ◽  
Fruit Growth ◽  
Adaptive Mechanism ◽  
Pyrus Communis L ◽  
Cellular Wall ◽  
Old Trees

Plants adopt physiological defense mechanisms to counteract droughts. In Colombia, there is no information for these mechanisms in pears (Pyrus communis L.), cv. Triunfo de Viena. Therefore, the present study aimed to analyze the hydric conditions of this plant in order to determine if it has developed a mechanism to avoid, reduce, or tolerate water stresses as a defense. This experiment used a pear crop located in the municipality of Sesquile (Colombia), with 16-year-old trees that were subjected to three irrigation treatments: a control that received 100% of this crop's evapotranspiration (100%ETc), and 73%ETc and 53%ETc treatments were irrigated at 73% and 53% of crop's evapotranspiration, respectively, for the entire rapid fruit growth period of 2012 to 2013. The results indicated that the irrigation reduction in 53%ETc treatment present an adaptive mechanism in the trees, with a structural change in the cellular wall that allowed for 47% water savings in this fruit growth stage.

Leaf gas exchanges and water relations affect the daily patterns of fruit growth and vascular flows in Abbé Fétel pear (Pyrus communis L.) trees

2014 ◽  
Vol 178 ◽  
pp. 106-113 ◽  
Author(s):  
Brunella Morandi ◽  
Pasquale Losciale ◽  
Luigi Manfrini ◽  
Marco Zibordi ◽  
Stefano Anconelli ◽  
...  
Keyword(s):  
Water Relations ◽  
Pyrus Communis ◽  
Fruit Growth ◽  
Gas Exchanges ◽  
Leaf Gas Exchanges ◽  
Pyrus Communis L ◽  
Daily Patterns

scholarly journals Effect of regulated deficit irrigation (RDI) on the vegetative growth of pear variety Triunfo de Viena (Pyrus communis L.)

2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Javier Enrique Vélez-Sánchez ◽  
María Jaqueline Molina-Ochoa ◽  
Pedro Rodríguez-Hernández
Keyword(s):  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Dry Mass ◽  
Pyrus Communis ◽  
Fruit Growth ◽  
Regulated Deficit Irrigation ◽  
Relative Growth ◽  
Relative Growth Rates ◽  
Significant Difference ◽  
Pyrus Communis L

One of the consequences of a water deficit in the vegetative growth is the modification of the plant vigor, which determines the extent and the rate of growth and lengthening in shoots, which, in this phase, is more important than fruit growth, which is very slow in terms of dry mass accumulation. The objective of this research was to determine the effect on the vegetative growth of the pear variety Triunfo de Viena (Pyrus communis L) of regulated deficit irrigation (RDI), which was compared with a control irrigated at 100% crop evapotranspiration (ETc). The irrigation treatments consisted of the application of watering regimes of 74 and 48% ETc in treatment T2 and 60 and 27% ETc in treatment T3 in 2014 and 2015, respectively, during the period of rapid fruit growth with the same watering regime used in T1 (control) applied during the rest of the season. The irrigation reduction used in T2 and T3 represented water savings of 26% and 40% in 2014 and 52% and 73% in 2015, respectively. In the deficit treatments, there were no significant differences with respect to the control for the length, or absolute and relative growth rates (AGR and RGR) of the shoots. The weight of the wood from the fructification pruning had a significant difference between T3 and the control.

scholarly journals Self-incompatibility in pears (Pyrus communis L., Pyrus serotina Rehd. and Pyrus ussuriensis) Review

2006 ◽  
Vol 12 (2) ◽  
Author(s):  
J. Halász ◽  
A. Hegedűs
Keyword(s):  
Pyrus Communis ◽  
Japanese Pear ◽  
Self Incompatibility ◽  
Incompatibility Group ◽  
Technical Developments ◽  
Pyrus Communis L ◽  
History Of ◽  
Pyrus Serotina ◽  
Allele Series ◽  
Allele Pool

Self-incompatibility system and allele pool of three different pear species, European pear (Pyrus communis), Japanese pear (P. serotina) and Chinese pear (P ussuriensis) are displayed. Several inconsistencies and the absence of the harmonization of three different allele series are revealed in the European pears. By collecting data from several reports eight incompatibility groups of Japanese pear cultivars could be established. A self-compatible genotype is analysed in details and shown to be a stylar-part mutant. As Japanese pear was the first fruit tree species from which S-ribonucleases were identified, the history of S-genotyping from the beginning to the latest achievements and technical developments can be also monitored from the experiments enumerated. In Chinese pears, seven S-alleles and one incompatibility group could be identified.

Growing peculiarities for seedlings of pearrootstock forms (Pyrus communis L.) in the Crimea

2018 ◽  
Vol 1 (75) ◽  
pp. 86-89
Author(s):  
Yuriy Plugatar ◽  
◽  
Alexander Sotnik ◽  
Valentina Tankevich ◽  
◽  
...  
Keyword(s):  
Pyrus Communis ◽  
Pyrus Communis L ◽  
The Crimea

Molecular and biochemical differences underlying the efficacy of lovastatin in preventing the onset of superficial scald in a susceptible and resistant Pyrus communis L. cultivar

2021 ◽  
Vol 173 ◽  
pp. 111435
Author(s):  
Nicola Busatto ◽  
Jordi Giné-Bordonaba ◽  
Christian Larrigaudière ◽  
Violeta Lindo-Garcia ◽  
Brian Farneti ◽  
...  
Keyword(s):  
Pyrus Communis ◽  
Superficial Scald ◽  
Pyrus Communis L
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