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1. Floral morphology and hybrid fruiting characteristics of distylous Primula forbesii

Author:
Zhang, X. M.; Wang, M.; Zheng, Y. F.; Wang, Y. L.
Source:
Acta horticulturae 2017 no.1185 pp. 135-142
ISSN:
0567-7572
Subject:
Primula; breeding; cross pollination; flowers; fruit set; hybrids; image analysis; plant ovary; pollen; pollen tubes; scanning electron microscopy; seed set; self-pollination; stigma; China
Abstract:
... Primula forbesii Franchet is a biennial wild herbaceous, endemic to China. We first examined the morphology of pollen and stigma of thrum and pin flower using SEM line image analysis system, then observed the pollen germination and growth in thrum and pin stylus. The fruit set of hybrid combinations was investigated. The pollen of P. forbesii belonged to 3-syncolpraporate pollen. Pin and thrum flo ...
DOI:
10.17660/ActaHortic.2017.1185.19

2. Flower biology and fruit set in cherry

Author:
Herrero, M.
Source:
Acta horticulturae 2017 no.1161 pp. 345-352
ISSN:
0567-7572
Subject:
cherries; environmental factors; flowers; fruit set; pollen tubes; pollination; spermatozoa
Abstract:
... A renewed interest in cherry growing is often accompanied by erratic cropping. While environmental factors are usually searched to explain failures in fruit set, the main causes of a good or a bad crop appear to lie inside the flower. In this work the reproductive process in cherry is first examined in a positive way, following the steps that go from pollination to fertilization. Then, these steps ...
DOI:
10.17660/ActaHortic.2017.1161.56

3. Reproductive patterns of 1-year-old mixed shoots in different olive cultivars in Central Italy

Author:
Lodolini, E. M.; Tarragoni, A.; Ciccolanti, T.; Massetani, F.; Pollastri, L.; Neri, D.
Source:
Acta horticulturae 2017 no.1160 pp. 119-126
ISSN:
0567-7572
Subject:
branching; climatic factors; cultivars; flowers; fruit set; olives; orchards; plant architecture; plant density; shoots; trees; Italy
Abstract:
... The increase of plant density in new olive orchard systems requires a deeper investigation about plant architecture to understand growth, branching pattern and yield and to select most suitable cultivars. The spatial arrangement of vegetative and reproductive structures helps to explain the fruiting attitude of the plant at different levels: the whole tree, the productive branch and the fruiting s ...
DOI:
10.17660/ActaHortic.2017.1160.17

4. Fruit diversity in a natural European habitat of Fragaria moschata Weston

Author:
Lesemann, S. S.; Bolke, N.; Tejeda Fernadez, C. E.; Buschmann, S.; Gerischer, U.; Neinhuis, C.; Herklotz, V.; Ritz, C. M.; Olbricht, K.
Source:
Acta horticulturae 2017 no.1156 pp. 215-222
ISSN:
0567-7572
Subject:
Fragaria moschata; breeding; brix; citric acid; color; dioecy; flow cytometry; flowers; fruit set; fruits; genetic markers; genotyping; habitats; hermaphroditism; hybrids; indigenous species; leaves; meadows; orchards; plant characteristics; strawberries; total soluble solids; trichomes; woodlands; Germany
Abstract:
... Fragaria moschata also known as musk strawberry is one of the four indigenous species of Fragaria in Europe. These wild species harbour interesting characteristics and are therefore a valuable source for breeding in general. To evaluate the potential of wild populations of musk strawberries we have collected 110 strawberry plants at a natural site in Saxony, Germany, characterized by woodland, sem ...
DOI:
10.17660/ActaHortic.2017.1156.33

5. Programming production potential and harvest spread through fertilisation in 'Elsanta' trayplants

Author:
Melis, P.; Stoffels, K.; Vervoort, M.; Delm, T. van
Source:
Acta horticulturae 2017 no.1156 pp. 315-322
ISSN:
0567-7572
Subject:
autumn; cultivars; developmental stages; flowers; fruit set; greenhouses; growers; harvest date; market prices; photoperiod; plant characteristics; ripening; spring; strawberries; summer; temperature; Belgium
Abstract:
... Using multiple cultivation systems in the pursuit of a year-round production, strawberry growers aim for high production rates and large, high quality fruits. Production potential is established during the plant production phase which takes place on tray fields for the substrate growers in Belgium. 'Elsanta' is the major cultivar used in the different systems throughout the year. In the milder con ...
DOI:
10.17660/ActaHortic.2017.1156.48

6. Influence of amount and arrangement of pollinated flowers on squash hybrid seed production

Author:
Nascimento, W. M.; Lima, G. P.; Carmona, R.; Silva, P. P.; Freitas, R. A.
Source:
Acta horticulturae 2017 no.1151 pp. 189-194
ISSN:
0567-7572
Subject:
experimental design; field experimentation; flowers; fruit set; hybrids; imports; pollination; seeds; squashes; Brazil; Japan
Abstract:
... The low yield obtained on squash hybrid seed production in Brazil has contributed for an increasing of seed import, mainly from Japan. A field trial was carried out at Embrapa Vegetables, Brazil to evaluate the effects of amount and arrangement of pollinated flowers in the production and physiological quality of 'Jabras' hybrid seeds, a tetsukabuto type squash. The experimental design was randomiz ...
DOI:
10.17660/ActaHortic.2017.1151.30