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Investigating the Type of Gene Action Conditioning Tolerance to Aluminum (Al) Toxicity in Tropical Maize

Content Type
Author or Institution as Author
Victoria Ndeke
Co-authors

Langa Tembo

Funding Partner
Date of publication
Language
Description/Abstract

Maize is a third important cereal crop in the world after wheat and rice. In Zambia, it is an important staple crop. Its production is however hampered by both biotic and abiotic factors. Among the abiotic factors, Aluminum (Al) toxicity causes high yield losses and is directly linked to acidic soils. Application of lime can ameliorate this problem, but it is expensive for small scale farmers.
Developing maize varieties that are tolerant to Al toxicity is cheaper and feasible for small scale farmers. The purpose of this research was to investigate the type of gene action conditioning tolerance to aluminum toxicity in tropical maize. Eleven inbred lines were mated in an 8 male (4 moderately tolerant and 4 susceptible) x 3 female (resistant) North Carolina Design II. Results revealed that general combining ability (GCA) effects due to both males and females were highly significant (P≤ 0.001) for root biomass. The shoot length GCA effects due to both male and female respectively were significant (P≤ 0.01). Similarly, the GCA effects due to females and males for root length were significant, P≤ 0.01 and P≤ 0.05 respectively. The genotype CML 511 had the most desirable significant GCA effect value (1.40) for root length among the male lines while CML 538 had the most desirable significant GCA effect value (0.92) among the female lines. The baker’s ratio for root length was found to be 0.49 implying that both additive and non-additive gene action were important in conditioning aluminum toxicity tolerance in tropical maize.

Keywords
Aluminum toxicity; combining ability; inbred lines; gene action.
Citation

Ndeke V., & Tembo L. Investigating the Type of Gene Action Conditioning Tolerance to Aluminum (Al)
Toxicity in Tropical Maize (2019). 2(4): 1-8, 2019

What are vulnerabilities; who is vulnerable to climate change?

Content Type
Author or Institution as Author
NewsDay
Co-authors

Peter Makwanya

Funding Partner
Date of publication
Institution
NewsDay
Language
Gender marker
Youth marker
Description/Abstract

The term vulnerable has become both a noun and verb, and now overshadows the significance of the term, vulnerabilities. For some time now, the term vulnerable has been used to refer to almost everything, yet vulnerabilities refer to the inability to withstand the effects of the hostile environment, while vulnerable refers to the possibility of being attacked, harmed – either physically or emotionally.

Keywords
vulnerability
Climate
Change
Contact name (for further information)
Ganyani Khosa
Contact email (for further information)

CROP VARIETIES Released under the Agricultural Productivity Programme for Southern Africa (APPSA) - MOZAMBIQUE

Content Type
Author or Institution as Author
CCARDESA
Co-authors

APPSA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This poster highlights the crop varieties which APPSA has released in Mozambique with support from the World Bank

Keywords
Released crop varieties, APPSA, MOZAMBIQUE
Contact name (for further information)
Dr.Murata
Contact email (for further information)
Citation

Murata.M.  (2019) CROP VARIETIES Released under the Agricultural Productivity Programme for Southern Africa (APPSA) - MOZAMBIQUE. Gaborone, Botswana

CCARDESA Category

Demographic Characteristics and Constraints of Livestock Production in Northern Namibia

Content Type
Author or Institution as Author
CCARDESA
Co-authors

Nambia Ministry of Agriculture

Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

The poster identifies constraints that affect livestock production in Omusati, in order to inform the development of remedial actions

Keywords
Livestock, Namibia, Survey, Study, Demographic characteristics of Livestock,
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Citation

Dr B. Podisi et al,(2019) Demographic Characteristics and Constraints of Livestock Production in Northern Namibia, CCARDESA.Pg.1 

CCARDESA Category

Climate Smart Diet Management Options for Livestock in the SADC Region: Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

Climate change, especially prolonged drought events, reduce the availability of feed and water for livestock. This Decision Tool aims to help field level extension staff make climate smart decisions on which diet management option best suits their farmers’ context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate smart decisions on improvements to their farming systems with their farmers as clients. Reference to technical guides relevant to the practices and technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Diet Management Options for Livestock production in the southern African development community (SADC) region

Keywords
Knowledge Product 14, Climate Smart Diet Management Options, Livestock, SADC region.
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Contact phone (for further information)
+267 3914991
Contact institution (for further information)
CCARDESA
Citation

 CCARDESA 2019. Knowledge Product 12: Climate Smart Diet Management Options for Livestock in the SADC region. CCARDESA Secretariat, Gaborone, Botswana.pg14

CCARDESA Category

Climate Smart Agroforestry Options for Maize, Sorghum & Rice: Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This Decision Tool aims to help field level extension staff make climate smart decisions on which agroforestry option best suits their farmers’ context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate smart decisions on improvements to their farming systems with their clients/farmers. Reference to technical guides relevant to the practices/technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Agroforestry Options for rice, maize, and sorghum production in the Southern African Development Community (SADC) region.

Keywords
Knowledge Product 12: Climate Smart Agroforestry options, Maize, Sorghum, Rice. Climate Smart Agricultural Practices
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Citation

CCARDESA 2019. Knowledge Product 12: Climate smart agroforestry options for maize, sorghum, and rice. CCARDESA Secretariat, Gaborone, Botswana.

CCARDESA Category

Climate Smart Agroforestry Options for Maize, Sorghum & Rice: Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This Decision Tool aims to help field level extension staff make climate smart decisions on which agroforestry option best suits their farmers’ context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate smart decisions on improvements to their farming systems with their clients/farmers. Reference to technical guides relevant to the practices/technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Agroforestry Options for rice, maize, and sorghum production in the Southern African Development Community (SADC) region.

Keywords
Knowledge Product 12: Climate Smart Agroforestry options, Maize, Sorghum, Rice. Climate Smart Agricultural Practices
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Contact phone (for further information)
+267 3914991
Contact institution (for further information)
CCARDESA
Citation

CCARDESA 2019. Knowledge Product 12: Climate smart agroforestry options for maize, sorghum, and rice. CCARDESA Secretariat, Gaborone, Botswana.

CCARDESA Category

Climate Smart Water Management Options for Rice: Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This Decision Tool aims to help field level extension staff make climate smart decisions on which water management option best suits their farmers’ context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate smart decisions on improvements to their farming systems with their clients. Reference to technical guides relevant to the practices/technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Water Management Options for rice production in the Southern African Development Community(SADC) region

Keywords
Climate Smart, Water Management Options for Rice, Knowledge Product 11, Climate Smart Agriculture,
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Contact phone (for further information)
+267 3914991
Contact institution (for further information)
CCARDESA
Citation

CCARDESA 2019. Knowledge Product 10: Climate smart water management options for Rice. CCARDESA Secretariat, Gaborone, Botswana.pg14

CCARDESA Category

Climate Smart Water Management Options for Maize and Sorghum:Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This Decision Tool aims to help field level extension staff make climate smart decisions on which water management option best suits the farmers ’context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate smart decisions on improvements to their farming systems with their clients/farmers. Reference to technical guides relevant to the practices/technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Water Management Options for Maize and Sorghum production in the Southern African Development Community (SADC) region

Keywords
Knowledge Product 10, Climate smart water management options, Maize, Sorghum, Climate Smart Agricultural Practices, Decision Making Tool
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Contact phone (for further information)
+267 3914991
Contact institution (for further information)
CCARDESA
Citation

CCARDESA 2019. Knowledge Product 10: Climate smart water management options for maize & sorghum. CCARDESA Secretariat, Gaborone, Botswana.

CCARDESA Category

Climate Smart Seed Selection for Maize, Sorghum and Rice:Climate Smart Agriculture Knowledge Products for Extension Workers

Content Type
Author or Institution as Author
CCARDESA
Co-authors

ACCRA

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

ThisDecision Tool aims to help field-level extension staff make climate smart decisions on which seed best suits their farmers’ context. This tool is not designed as a technical guide to implementation. It is designed to assist extension staff in making climate-smart decisions with their clients/farmers on improvements to their farming systems. Reference to technical guides relevant to the practices/technologies outlined are included at the end of the tool. The tool focuses on some of the Best Bet Climate Smart Seed Selection Options. The tool is applicable for rice maize and sorghum. 

Keywords
Knowledge Product 09, Climate smart seed selection, sorghum, maize, rice, climate-smart agriculture
Contact name (for further information)
Dr. Simon Mwale
Contact email (for further information)
Contact phone (for further information)
+267 3914991
Contact institution (for further information)
CCARDESA
Citation

CCARDESA 2019. Knowledge Product 09: Climate smart seed selection for sorghum, maize & rice. CCARDESA Secretariat, Gaborone, Botswana.pg14

CCARDESA Category
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Funding Partners

4.61M

Beneficiaries Reached

97000

Farmers Trained

3720

Number of Value Chain Actors Accessing CSA

41300

Lead Farmers Supported