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1

Growth and fruiting of sweet cherry trees grafted on various rootstocks or treated with Cultar

100%

Sitarek M., Grzyb Z. S., Czynczyk A., Omiecinska B.

Journal of Fruit and Ornamental Plant Research

|

1999

|

tom 07

|

nr 1

2

Effect of different crop load management strategies on fruit production and quality of sweet cherries [Prunus avium L.] 'Lapins' in Central Chile

84%

Von B. E., Sanhueza S., Elorriaga A.

Journal of Fruit and Ornamental Plant Research

|

2010

|

tom 18

|

nr 1

51-57

A study was carried out during 2007 in the Maule Region of Chile to evaluate the effect of increasing levels of manual thinning at three intensities (15%, 30% and 50%) on fruit yield and quality (fruit size, weight, firmness and soluble solids content) of sweet cherries (Prunus avium L.) 'Lapins'. The study evaluated manual removal of entire fruiting spurs (extinction training), individual fruit buds on the spur, individual blossoms on the spur and individual fruits on the spur. Fruit size distribution was positively affected by the thinning treatments and in most cases yield was not affected by these treatments. Fruit which was not of fresh market quality (<21 mm) was reduced by the thinning. The control had 82% non market quality fruit. A 50% removal treatment reduced small fruit to very low levels and the yield of premium fruit (diameter > 28 mm) was also promoted. Manual thinning arises as a practical approach for improving fruit size distribution.

3

Estimation of growth and yielding of highbush blueberry (Vaccinium corymbosum L.) cultivated on soil developed from weakly loamy sand

84%

Wach D.

Folia Horticulturae

|

2008

|

tom 20

|

nr 2

4

The influence of mycorrhizal fungi on the growth and yielding of plum and sour cherry trees

84%

Swierczynski S., Stachowiak A.

Journal of Fruit and Ornamental Plant Research

|

2010

|

tom 18

|

nr 2

71-77

The experiment was conducted in the Experimental Station in Baranowo near Poznań between 2007-2009. The influence of mycorrhizal fungi on the growth and yield of the plum tree cultivar - ' Cacanska Lepotica' and sour cherry tree cultivar - 'Schattenmorelle' was estimated. Three years after planting, the plum trees had bigger vigour of growth, expressed by TCSA, in a combination with mycorrhizal fungi. Sour cherry trees did not differ in growth after the use of mycorrhizal fungi. A higher yield of fruits was harvested from plum and sour cherry trees inoculated with a mycorrhizal fungi. Productivity of mycorrhized trees, calculated according to the cross-sectional area of the trunk, was higher than in the control. The use of mycorrhizal fungi had no influence on fruit mass of the investigated species of fruit trees.

5

Efficiency of fruitlet thinning in apple ‘Gala Must’ by use of metamitron and artificial shading

84%

Basak A.

Journal of Fruit and Ornamental Plant Research

|

2011

|

tom 19

|

nr 1

The use of the photosynthesis inhibitor metamitron, and the use of temporary artificial shading as two methods of fruitlet thinning, were evaluated in 2006 and 2008 in apple trees 'Gala Must'. The use of these 2 methods used separately, were expected to induce a temporary decrease in photosynthetic intensity which would strengthen the competition between the fruitlets. This process would then lead to the abscission of the weaker ones. For this purpose, metamitron (preparation Goltix 700SC) was used. A dose of 350 mg/l was sprayed on the trees either one time (when fruitlets were 68 mm in diameter), or twice (the second spraying was repeated 6 days later on fruitlets 10-14 mm in diameter). Another group of trees was covered for 5 to 14 days with polipropylene material causing about a 70% reduction of light. In 2006, only the double metamitron treatment caused significant reduction of fruit set (comparable to hand thinning). This resulted in an increase in the fruit size and yield of marketable (> 70 mm) apples without negative effect on the total yield, 'internal quality' and red colour of the apples. In 2008, the good effect of thinning was noticed after one spray with metamitron, while a double treatment caused over-thinning. The single treatment with metamitron positively influenced fruit size, the distribution of apples in size classes, and yield of apples with diameters of > 70 mm. Comparable thinning was recorded in trees artificially shaded for 10 days; fruitlets were 6 to 14 mm in diameter. The uniform distribution of fruits, which were homogenous in size in the canopy of the trees, proved that both methods of thinning have high selectivity.

6

Evaluation of the suitability of Polish blackcurrant cultivars for commercial cultivation

84%

Pluta S., Zurawicz E., Krawiec A., Salamon Z.

Journal of Fruit and Ornamental Plant Research

|

2008

|

tom 16

153-166

7

Suitability of different dwarfing rootstocks for 'Rubin' apple trees grown in fertile soil

84%

Piestrzeniewicz C., Sadowski A., Dziuban R.

Journal of Fruit and Ornamental Plant Research

|

2009

|

tom 17

|

nr 2

53-62

The effects of 19 rootstocks on growth, cropping and mean fruit mass of the 'Rubin' apple trees in fertile soil were investigated in the years 2001-2006. Six years after planting, the trunk cross-sectional area (TCSA) was the largest on P 62, M.9 EMLA and Arm 18, and the smallest on PJ 629 (No. 629), J-TE-G, PB-4, P 59 and No. 280. The highest cumulative yields per tree were obtained on the most vigorous rootstocks as well as on B 491, P 16, P 63 and P 65. Trees on the latter four root- stocks gave the highest yields per hectare. Trees on P 66 could also be very productive if they were planted at the right density, adequate to their tree size. Trees on P 59, No. 280, P 22, PB-4 and J-TE-G showed a high yield efficiency (expressed as a ratio of cumulative yield to the final TCSA); however, due to the small tree size their yield per area unit was lower. Mean fruit mass for the 5 -year period was not significantly influenced by the rootstocks. The exception was PJ 629 which produced the smallest fruits.

8

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Optimisation of thinning of apple fruitlets cv. 'Braeburn Mariri Red'

84%

Szot I., Lipa T.

Acta Agrophysica

|

2019

|

tom 26

|

nr 3

9

Growth vigour and yielding of highbush blueberry cv. Bluecrop propagated from semi-woody cuttings and in vitro

84%

Smolarz K., Chlebowska D.

Journal of Fruit and Ornamental Plant Research

|

1997

|

tom 05

|

nr 2

10

The effect of fruitlet thinning on fruit quality parameters in the apple cultivar 'Gala'

84%

Basak A.

Journal of Fruit and Ornamental Plant Research

|

2006

|

tom 14

|

nr Suppl.2

11

Correlations between fruit size and fruit quality in apple trees with high and standard crop load levels

84%

De Salvador F. R., Fisichella M., Fontanari M.

Journal of Fruit and Ornamental Plant Research

|

2006

|

tom 14

|

nr Suppl.2

12

Fruit quality and processing potential in five new blackcurrant cultivars

84%

Siksnianas T., Stanys V., Sasnauskas A., Viskelis P., Rubinskiene M.

Journal of Fruit and Ornamental Plant Research

|

2006

|

tom 14

|

nr Suppl.2

13

Seed count, fruit quality and storage properties in four apple cultivars

84%

Blazek J., Hlusickova I.

Journal of Fruit and Ornamental Plant Research

|

2006

|

tom 14

|

nr Suppl.2

14

Productive value of eighteen gooseberry [Ribes grossularia L.] cultivars of different origin evaluated in Central Poland

67%

Pluta S., Broniarek-Niemiec A., Zurawicz E.

Journal of Fruit and Ornamental Plant Research

|

2010

|

tom 18

|

nr 2

197-209

In 2007-2009, eighteen gooseberry (Ribes grossularia L.) cultivars were evaluated in the growing conditions of central Poland. They were 'White Smith', 'Captiva- tor', 'Hinnonmaki Gelb', 'Hinnonmaki Rot', 'Invicta', 'Kamieniar', 'Krasnoslavian- ski', 'Laskovij', 'Macurines', 'Misorskij', 'Niesluchovski', 'Pax', 'Pixwell', 'Pusz- kinskij', 'Rochus', 'Rolonda', 'Ruskos' and 'Spine Free'. The following cultivar features were assessed: fruit yield (date of ripening, yield, size of fruits and colour of fruit skin), susceptibility to fungal leaf diseases: American powdery mildew Sphaero- theca mors-uvae (Schwein.) Berk. et Curt. and leaf spot Drepanopeziza ribis (Kelb.) Petrak, plant growth (the height and the width of bushes) and plant habit. Cultivars 'Niesluchovski', 'Hinnonmaki Gelb', 'Hinnonmaki Rot' and 'Invicta' were the earliest to ripen. Fruits of 'Captivator' and 'Spine Free' ripened the latest. The highest fruit yields were harvested from the cultivars 'Pixwell', 'Puszkinskij' and 'Laskovij', and the lowest were from 'Ruskos', 'Pax', 'Hinnonmaki Gelb' and 'Niesluchovski'. The various cultivars differed in the colour of the fruits. They produced green, yellow, light red, red, and dark red fruit skins. The most susceptible to American powdery mildew were 'White Smith' and 'Krasnoslavianski'. The remaining cultivars showed very little infection or they were not infected at all. The leaves of all cultivars were affected by leaf spot in the low or medium range, except for the cultivar 'White Smith', whose leaves were highly infected by this disease. The bushes of the cultivars 'Pixwell', 'Ruskos', 'Laskovij' and 'Misorkij' grew the most vigorously. 'White Smith', 'Niesluchovski' and 'Hinnonmaki Gelb' produced the smallest plants. Cultivars 'Macurines' and 'Puszkinskij' were characterized by the widest spreading plant habit.

15

The effect of selected agricultural factors on the yielding of spaghetti squash (Cucurbita pepo L.)

67%

Wadas W., Kalinowski K.

Acta Scientiarum Polonorum. Hortorum Cultus

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2010

|

tom 09

|

nr 2

Spaghetti squash is an interesting novelty in Poland. Popularization of spaghetti squash cultivation in our country requires development of agricultural recommendations. The size and the quality of yield is highly affected by the sowing date and plant population. The paper presents the results of a four-year study on the effect of the sowing date (5, 15 and 25 May) and plant spacing (1 × 0.6 m, 1 × 0.8 m and 1 × 1 m, ie. 16,668, 12,500 and 10,000 plants per ha) on the yield of spaghetti squash (‘Makaronowa Warszawska’ and ‘Pyza’) under the soil and climatic conditions of central-eastern Poland. The highest yield per hectare and the largest number of marketable fruits per plant was obtained while sowing on 5 May. Delaying the sowing date resulted in a decrease in the yield per hectare and of the number of marketable fruits per plant, although the average weight of a marketable fruit sown on 15 and 25 May did not significantly differ in comparison to sowing on 5 May. Increasing the spacings between plants from 1 × 0.6 m to 1 × 1 m resulted in decreasing the yield per hectare, but the number of marketable fruits per plant was larger. Plant spacing did not have a significant effect on the average weight of a marketable fruit. The yield per hectare for the ‘Pyza’ was larger in comparison to the ‘Makaronowa Warszawska’. The number of marketable fruits per plant did not significantly differ, but the weight of the ‘Pyza’ fruit was higher.

16

The size and the shape fruits of 10 apple cultivar

67%

Szczepanski K., Lys J., Smolarek C., Cianciara Z.

Fruit Science Reports

|

1987

|

tom 14

|

nr 3

17

Apple consumers' preferences on the example of the Poznan University of Life Sciences students

67%

Kierczynska S.

Journal of Agribusiness and Rural Development

|

2013

|

nr 04[30]

The aim of this paper was to present the preferences of apple consumers (students) concerned on the functional and sensory apples’ quality features: the apple cultivar and taste, skin colour, fruit size and fruit firmness. The survey data were collected in the years 2009 and 2011 among 265 and 208 students of the Poznan University of Life Sciences. The respondents completed the survey questionnaires in presence of the researcher. The respondents could choose no more than three of the listed apple cultivars. Further- more the respondents could choose one answer from each list of the preferable apples quality features (taste, skin colour, fruit size and firmness of flesh). The most preferred apple cultivars were: Lobo, Jonagold, Szampion, Golden Delicious and Cortland. The percentage of students whose did not know the name of the apple cultivar they consumed was high and it amounted to 17% in 2009 and 24% in 2011. Students preferred sweet-winy taste of apples, the red colour of fruit skin, with blush, the fruits of medium size and tough. The colour of apple skin was the least important quality feature - it did not matter for more than 1/3 of respondents, mainly males. The differences between males and females students appeared in taste of apple fruits and firmness of flesh. The sour taste of apples was preferred by relatively more males than females and for bigger percentage of males the taste of fruits was not important. More females preferred sweet and very sweet apples and tough.

18

The usefulness of two rootstocks for some plum cultivars

67%

Swierczynski S., Stachowiak A.

Journal of Fruit and Ornamental Plant Research

|

2009

|

tom 17

|

nr 2

63-71

The influence of two rootstocks (Prunus cerasifera Ehrh. and Prunus tomentosa Thunb.) on growth, yield and fruit quality of five plum cultivars: 'Herman', 'Opal', 'Cacanska Rana', 'Cacanska Lepotica' and 'Dąbrowicka Prune' was estimated. Seven years after planting, the trees of all the considered cultivars grew more vigorously on P. cerasifera rootstock than the trees on P. tomentosa. The highest yields were harvested from the trees 'Cacanska Lepotica' grafted on P. cerasifera. Productivity of all the cultivars of plum trees on P. tomentosa rootstock was higher than of these grafted on P. cerasifera seedling. The considered rootstocks had no influence on fruit weight of the investigated plum cultivars. 'Cacanska Rana' trees produced the biggest fruit, whereas the smallest were harvested from 'Dąbrowicka Prune' trees.

19

The effect of mulch and mycorrhiza on fruit yield and size of three strawberry cultivars

67%

Frac M., Michalski P., Sas-Paszt L.

Journal of Fruit and Ornamental Plant Research

|

2009

|

tom 17

|

nr 2

85-93

The study involved three strawberry cultivars: 'Senga Sengana', 'Kent' and 'El- santa', planted in the spring of 2003 in a row system in the Pomological Orchard of RIPF in Skierniewice, Poland. The experiment was carried out in 2006 on 4-year-old plants as a continuation of the project Cost 631. The strawberry plants were mulched with a peat substrate, or sawdust, or pine bark, or compost or rye straw, and inoculated with a mycorrhizal preparation Mycosat. The mulches were replenished every year in the same amount during the flowering of the plants. The results of the experiments indicate that the combinations used did not, in general, cause a significant change in the yielding of plants during the experimental period presented. An exception were the plants of the cultivar 'Kent' mulched with straw, which produced a significantly lower yield, by 18.4% on average, in comparison with the control plants or those mulched with bark. Plants of the cultivar 'Elsanta' mulched with compost or sawdust were characterized by a significantly greater mean fruit weight (by an average of 1.5 g) compared with the control. On the whole, the use of the mulches and the mycorrhizal product contributed to an increase in the number of fruits of the class 'Ekstra'. Significant differences were found on the plots of 'Senga Sengana' mulched with straw or inoculated with the mycorrhizal substrate, from which, on the average, 71% more class 'Ekstra' berries were collected than from the control plants (non- mulched). The experiments confirmed the cultivar-specific differences in yield between the strawberry cultivars studied. At comparable yields, they differed significantly in terms of the number and mean weight of the fruits collected.

20

Effect of rootstock on yield quantity and quality of grapevine ‘Regent’ in South-Eastern Poland

67%

Kaplan M., Klimek K., Borowy A., Najda A.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2018

|

tom 17

|

nr 4

Globally, the application of rootstocks for grapevine cultivation has been a standard, while in the northern regions, like in Poland where the viticulture tradition is relatively short, the selection of the most suitable rootstock types requires multi-year observation and research. The objective of the present study was to assess the effect of six following rootstock types: ‘101-14 Mgt’, ‘161-49C’, ‘125AA’, ‘5BB’, ‘SO4’, ‘SORI’, and own-rooted vines on yield quantity and quality of ‘Regent’ grapevine in south-eastern Poland. The three-year research period indicates that the vines on ‘125AA’ tended to produce not only the highest yields but had positive influence on the number and weight of clusters and berry weight as well. Whereas the vines grafted onto ‘161-49C’ gave the lowest yields and had the smallest number of clusters per vine. The fruit extract content in ‘Regent’ grapes on ‘101-14 Mgt’ rootstock was found to be significantly lowest among those under study. The extract content and yield of grapevines evaluated in the own-rooted vines and those grafted to the rootstocks which formed one group, did not differ.

Ograniczanie wyników

Growth and fruiting of sweet cherry trees grafted on various rootstocks or treated with Cultar

Effect of different crop load management strategies on fruit production and quality of sweet cherries [Prunus avium L.] 'Lapins' in Central Chile

Estimation of growth and yielding of highbush blueberry (Vaccinium corymbosum L.) cultivated on soil developed from weakly loamy sand

The influence of mycorrhizal fungi on the growth and yielding of plum and sour cherry trees

Efficiency of fruitlet thinning in apple ‘Gala Must’ by use of metamitron and artificial shading

Evaluation of the suitability of Polish blackcurrant cultivars for commercial cultivation

Suitability of different dwarfing rootstocks for 'Rubin' apple trees grown in fertile soil

Optimisation of thinning of apple fruitlets cv. 'Braeburn Mariri Red'

Growth vigour and yielding of highbush blueberry cv. Bluecrop propagated from semi-woody cuttings and in vitro

The effect of fruitlet thinning on fruit quality parameters in the apple cultivar 'Gala'

Correlations between fruit size and fruit quality in apple trees with high and standard crop load levels

Fruit quality and processing potential in five new blackcurrant cultivars

Seed count, fruit quality and storage properties in four apple cultivars

Productive value of eighteen gooseberry [Ribes grossularia L.] cultivars of different origin evaluated in Central Poland

The effect of selected agricultural factors on the yielding of spaghetti squash (Cucurbita pepo L.)

The size and the shape fruits of 10 apple cultivar

Apple consumers' preferences on the example of the Poznan University of Life Sciences students

The usefulness of two rootstocks for some plum cultivars

The effect of mulch and mycorrhiza on fruit yield and size of three strawberry cultivars

Effect of rootstock on yield quantity and quality of grapevine ‘Regent’ in South-Eastern Poland