Pollen longevity and artificial cross-pollination in Coffea arabica L

Walyaro, D. J.; Vossen, H. A. M. van der

doi:10.1007/bf00032090

Cited by 15 publications

(5 citation statements)

References 4 publications

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“…These values indicate good pollen viability. Walyaro and Vossen (1977) evaluated the germination of pollen grains stored in a freezer under vacuum conditions at -18 °C and observed that viability declined to 70% in 9 months, and to 60% in 11 months. Conagin and Mendes (1961) observed that germination rates lower than 55% were associated with lower viability of C. canephora pollen grains.…”

Section: Resultsmentioning

confidence: 99%

In vitro pollination and fluorescence microscopy for characterization of gametophytic self-incompatibility of Coffea canephora Pierre ex A. Froehner

Souza

Rocha

Santos

et al. 2021

Crop Breed. Appl. Biotechnol.

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Section: Resultsmentioning

confidence: 99%

In vitro pollination and fluorescence microscopy for characterization of gametophytic self-incompatibility of Coffea canephora Pierre ex A. Froehner

Souza

Rocha

Santos

et al. 2021

Crop Breed. Appl. Biotechnol.

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“…The style is receptive when the bud opens and remains receptive for three to four days depending on climatic conditions [38]. However, Walyaro and Van der Vossen [37] report that stigmas are receptive for at least nine days and recommend that the vesicles should not be removed for two weeks after pollination for successful hybridization.…”

Section: Floral Biology and Fruit Charactersmentioning

confidence: 99%

“…Under normal conditions, pollen loses its viability very rapidly [36]. It is, however, possible to keep the viability for more than two years by storing it under vacuum conditions at −18 • C. The ovary is inferior with a long terminal style and two stigmatic branches and is made up of two united carpels with one ovule per carpel [37].…”

Section: Floral Biology and Fruit Charactersmentioning

confidence: 99%

Coffee (Coffea arabica L.): Methods, Objectives, and Future Strategies of Breeding in Ethiopia—Review

Melese

Kolech

2021

Sustainability

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Coffea arabica L. belongs to the Rubiaceae family, and the genus Coffea is believed to have a primary center of origin and genetic variability in the highlands of southwestern Ethiopia. It is a vital beverage commodity across the world and a valuable export product, ranking second in international trade after petroleum. Ethiopia is among the top five major coffee-producing countries and is Africa’s leading producer. However, its full production capacity has not yet been exploited, and research efforts to reduce biotic and abiotic factors through reproduction have been extremely limited. Hence, improvement through different breeding methods is essential to overcome the constraints in its production. Thus, the objective of this study is to review the different breeding methods applied for different traits in Ethiopia. Breeding methods depend on the type and the source of traits and the final breeding objectives. The main breeding objectives are production, resistance/tolerance to diseases, and cup quality. The commonly applied breeding methods are selected and intra-specific hybridization, germplasm enhancement, and the development of improved varieties with wider adaptability. There is also a practice of crossing parental lines selected for certain desirable traits for the development of hybrid varieties. Accordingly, some promising success has been obtained. Forty-one coffee varieties have been released so far. Because conventional breeding methods are time-consuming, integrating conventional breeding methods with biotechnological techniques could have an instrumental role in the rapid development of suitable varieties for the changing climate.

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“…Pollen is also used for distributing and exchanging germplasm among locations, since transfer of pests and diseases through pollen is rare (except for some virus diseases) and is subjected to less stringent quarantine restrictions. Other uses are preserving nuclear genes of germplasm, studies in basic physiology, biochemistry and fertility, and studies for biotechnology involving gene expression, transformation and in vitro fertilization (Towill and Walters, 2000).…”

Section: Pollen Storagementioning

confidence: 99%

Crop Wild Relatives

Hunter¹,

Heywood²

2012

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This series of books is published by Earthscan in association with Bioversity International. The aim of the series is to review the current state of knowledge in topical issues in agricultural biodiversity, to identify gaps in our knowledge base, to synthesize lessons learned and to propose future research and development actions. The overall objective is to increase the sustainable use of biodiversity in improving people's well-being and food and nutrition security.The series' scope is all aspects of agricultural biodiversity, ranging from conservation biology of genetic resources through social sciences to policy and legal aspects. It also covers the fields of research, education, communication and coordination, information management and knowledge sharing.

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Pollen longevity and artificial cross-pollination in Coffea arabica L

Cited by 15 publications

References 4 publications

In vitro pollination and fluorescence microscopy for characterization of gametophytic self-incompatibility of Coffea canephora Pierre ex A. Froehner

In vitro pollination and fluorescence microscopy for characterization of gametophytic self-incompatibility of Coffea canephora Pierre ex A. Froehner

Coffee (Coffea arabica L.): Methods, Objectives, and Future Strategies of Breeding in Ethiopia—Review

Crop Wild Relatives

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