Publications by authors named "Gloria Ceasar"
Article Synopsis
- * Molecular techniques confirmed the presence of various virus species, including cassava brown streak ipomoviruses and cassava mosaic begomoviruses, with East African cassava mosaic virus also detected.
- * The study identified four whitefly species, significant pests for cassava, and categorized the local cassava into two mitotypes, providing essential data for future management strategies against these viral diseases and their vectors.
Article Synopsis
- Cassava brown steak disease (CBSD) is a major threat to cassava production in East and Central Africa, caused by two viruses, CBSV and UCBSV.
- A multi-country study aimed to identify and promote cassava cultivars resistant to CBSD across various conditions in Tanzania, where 17 different cultivars were tested.
- Results showed significant differences in CBSD infection rates based on location, with certain resistant cultivars demonstrating less than 20% incidence, while the CBSD was found to be more virulent than UCBSV.
Article Synopsis
- Cassava brown streak disease (CBSD) is a major threat to cassava production in East and Central Africa, primarily due to the lack of resistant crop varieties, leading farmers to recycle planting materials, which increases disease risk.
- A study conducted in Tanzania from 2013 to 2017 assessed the degeneration of various cassava varieties under high CBSD conditions, revealing that newly planted materials had lower disease incidence compared to recycled ones, especially during the long rains season.
- The research found that overall root yields were significantly higher during the long rains (Masika) compared to the short rains (Vuli), and recycling planting materials resulted in more unusable roots due to CBSD, particularly in the Vuli season.
Cassava brown streak disease (CBSD) is the most important virus disease of cassava and a major food security threat in Africa. Yearly economic losses of up to $100 million USD have been attributed to CBSD. The lack of information on plant-virus interactions has restricted progress in breeding for CBSD resistance.
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