Comparison Waterlogging Tolerance Potential of Cassava. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Dethvongsa, Sengsoulichan; Vu, Nguyen Anh; Van, Tran Khanh
• Is Part Of: IOP conference series. Volume 707:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/707/1/012002
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: This experiment was conducted to evaluate the waterlogging tolerance of cassava. Five cassava genotypes from CIAT: CM9912-167, GM214-62, GM1263-6, GM1406-13 and GM1521-10, were used to assess the impact of artificial waterlogging conditions on growth and development of cassava. Cassava plantlets (in vitro) were cultivated in soil pots, and after 3 months of growth, they were waterlogged for 12 days. After three days of waterlogging, it was found that all 5 genotypes of cassava were affected by the waterlogged conditions. Notably, the variety of CM9912-167 clearly showed physiological changes such as chlorosis of leaves, wilting leaves and some plants even died within 6 days. Other varieties of cassava showed a belated onset of symptoms. Genotypes GM1406-13 and GM1512-10 showed the highest percent of chlorosis leaves, they resisted the effects of waterlogging for 12 days which was the longest time period for the genotypes tested. Through this experiment, cassava has two types of response to flooding. The first was cassava showing early yellow leaf, starting from old leaves and losing those yellow leaves. The other was withered whole the plant, then leaves dries and fall off, only a few young leaves on the top. In conclusion, cassava with yellow leaves is more resistant to flooding.