scholarly journals Особенности выращивания сеянцев семенных подвойных форм груши в Крыму

Author(s):  
Y.V. Plugatar ◽  
A.I. Sotnik ◽  
V.V. Tankevich

Приведены результаты изучения влияния сроков посева семян груши обыкновенной (Pirus communis L.), лохолистной (Pirus elaeagrifolia Pall), иволистной ( Pirus salicifolia Pall) и груши Бретшнейдера (Сян-Ли, Мин-Юэ- Ли, Цзы- Ли, Чан-Бай- Ли) на всхожесть и рост сеянцев в школе сеянцев в условиях предгорной части Крыма. Определено, что оптимальным сроком посева семян груши лохолистной и иволистной является третья декада октября груши Бретшнейдера первая половина ноября семена груши обыкновенной лучше сеять в февральские окна, которые присущи погодным условиям полуострова. При выполнении сроков посева всхожесть семян составляет 45 53 6772 85 соответственно, при этом большая часть растений соответствует стандартам, т.е. диаметр условной корневой шейки составляет 410 мм.The paper summarizes study findings on the influence of seeding time on germination and seedlings growth in a nursery in the conditions of piedmont part of Crimea for common peer (Pirus communis L.), oleaster pear (Pyrus elaeagnifolia Pall), willowleaf pear (P. salicifolia Pall) and Bretshneider pear (Syan-Li, Min-Yue-Li, Tsy-Li, Chan-Bay-Li).The study determined the third decade of October to be the optimal planting time for Pyrus elaeagrifolia Pall and Pyrus salicifolia Pall for Bretshneider pear, the best planting time is the first decade of November for Pyrus communis L. the best planting timeframe is February windows (a period of warm weather in February typical for the climate of the peninsula). The timeliness of the seeding ensures seed germination at45 53 6772 85, respectively. Furthermore, the majority of the plants develop up to standard, specifically: the diameter of the nominal root collar makes 410 mm.

2012 ◽  
Vol 39 (6) ◽  
pp. 493 ◽  
Author(s):  
Amy E. Watson ◽  
Alla N. Seleznyova ◽  
Geegana A. Dayatilake ◽  
D. Stuart Tustin

Improved knowledge of rootstock effects on pear (Pyrus communis L.) tree development is required before early assessment of rootstock breeding populations can be improved. Two cultivars, ‘Doyenné du Comice’ and ‘Concorde’, were grafted on Pyrus calleryana Decne. (vigorous), Quince BA29 (semi-vigorous) and Quince C (semi-dwarfing) rootstocks. Growth of the compound trees was studied over 2 years after grafting and flowering was recorded in the spring of the third year. Using architectural analysis, annual shoot types common to all treatments and closely connected to the patterns of extension of preformed and neoformed metamers were identified and the differences among rootstock vigour treatments were quantified by proportions of these shoot types. Rootstock affected node neoformation, which was highest in the treatment with P. calleryana. The extent of sylleptic branching varied among the treatments, whereas the budbreak along the primary-axis in the second year of growth was unaffected, hence, the number of proleptic secondary axes was largely determined the primary-axis node number developed in year one. Spring flowering first occurred in the third year of tree growth and its intensity was influenced by rootstock. Quince C, the least vigorous rootstock, produced the highest number of floral buds. Flowering was delayed in young pear trees compared with apple, as shown in previous studies, so we conclude flowering does not play such a pivotal role in secondary axes development and early tree dwarfing by rootstock as has been observed in apple.


2018 ◽  
Vol 1 (75) ◽  
pp. 86-89
Author(s):  
Yuriy Plugatar ◽  
◽  
Alexander Sotnik ◽  
Valentina Tankevich ◽  
◽  
...  

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

Energy ◽  
2021 ◽  
pp. 119740
Author(s):  
López-Vidaña Erick César ◽  
César-Munguía Ana Lilia ◽  
García-Valladares Octavio ◽  
Salgado Sandoval Orlando ◽  
Domínguez Niño Alfredo

2005 ◽  
Vol 106 (4) ◽  
pp. 515-529 ◽  
Author(s):  
M. Smit ◽  
J.J. Meintjes ◽  
G. Jacobs ◽  
P.J.C. Stassen ◽  
K.I. Theron

2021 ◽  
Vol 273 ◽  
pp. 118598
Author(s):  
Jolanta Cieśla ◽  
Magdalena Koczańska ◽  
Piotr Pieczywek ◽  
Monika Szymańska-Chargot ◽  
Justyna Cybulska ◽  
...  

2021 ◽  
pp. 211-214
Author(s):  
A.J. Posser ◽  
A.F. Fagherazzi ◽  
M.M. Fagherazzi ◽  
P.S. dos Santos ◽  
J.A. da Silva ◽  
...  

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