Actes, Douala, Cameroun, 4-12 Nov. 1979 PDF Download
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Author:
Publisher:
ISBN:
Category : Cacao
Languages : en
Pages : 732
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Book Description
Author:
Publisher:
ISBN:
Category : Cacao
Languages : en
Pages : 732
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1238
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Book Description
Author: Karl Schneider
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 40
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Book Description
Author: Karl Schneider
Publisher:
ISBN:
Category : Fertilization of plants
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1236
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 642
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Book Description
Author: Seloame Tatu Nyaku
Publisher: Cambridge Scholars Publishing
ISBN: 1527579972
Category : Technology & Engineering
Languages : en
Pages : 155
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Book Description
This book focuses on nematode-parasitizing crop plants grown in Ghana and the West Africa sub-region. It offers information on nematode types, and their population densities in both soil and root samples on selected crops cultivated in Ghana, with particular focus on nematodes of tree crops, vegetables, fruits, and other crops.
Author: Phatlane William Mokwala
Publisher: BoD – Books on Demand
ISBN: 1789232368
Category : Medical
Languages : en
Pages : 132
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Book Description
Plants are the basic source of food for both humans and animals. Most of the food is made of fruits and seeds. For these to be formed, pollination must first take place. This process is the transfer of pollen grains from the anther, which is the male structure of the flower, to the sigma on the female structure of the flower. The transfer process requires agents to be carried out. The agents can be either biotic or abiotic. Nature perfected this arrangement between the pollination agents and the plants. As ecosystems and agricultural systems are changing, this balanced arrangement becomes disturbed. This makes it necessary that pollination systems be studied so that necessary measures can be undertaken to ensure productivity. The chapters of this book present results in research undertaken to improve productivity in crops such as Actinidia chinensis (the kiwifruit), Theobroma cacao (cocoa), and Manicaria saccifera (a tropical forest palm). Some results are presented on tests to check the viability of pollen grains and the delivery of sperm cells through pollen tubes to the embryo sac. These results can serve as guidelines to any person seeking to improve pollination and productivity or to check the efficiency on pollination in ecosystems or agricultural production systems.
Author: Malawi. Dept. of Agricultural Research. Library System
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 262
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Book Description
Author: Catherine Farvacque-Vitkovi?
Publisher: World Bank Publications
ISBN: 0821358154
Category : Social Science
Languages : en
Pages : 285
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Book Description
There has been a dramatic demographic shift from rural areas to cities in sub-Saharan African countries over the last few decades. This continuing urbanisation trend has created new challenges for local governments in terms of managing urban services, since over half of the city streets in these countries have no names or addresses, and the problem is particularly acute in the poorest neighbourhoods. This publication examines the use of street addressing initiatives to address this problem, giving information on current and future applications, considering examples of use in many African countries, and setting out a methodological guide for implementing such initiatives.
