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Dry Matter Production Of Two Rice Cultivars With Contrasting Root Plasticity Expression Under Different Topographic Conditions Subjected To Soil Moisture Fluctuation, Stella Owusu Nketia, Roel Rodriguez Suralta, Yoshiaka Inukai, Shiro Mitsuya, Mana Kano Nakata, Peter Amoako Ofori, Dinh Thi Ngoc Nguyen, Akira Yamauchi
Dry Matter Production Of Two Rice Cultivars With Contrasting Root Plasticity Expression Under Different Topographic Conditions Subjected To Soil Moisture Fluctuation, Stella Owusu Nketia, Roel Rodriguez Suralta, Yoshiaka Inukai, Shiro Mitsuya, Mana Kano Nakata, Peter Amoako Ofori, Dinh Thi Ngoc Nguyen, Akira Yamauchi
The Philippine Agricultural Scientist
In rainfed lowland rice fields characterized by sloping terrains and the presence of a hardpan in a flat topography, plants are often exposed to soil moisture fluctuation (SMF) stress due to erratic rainfall patterns. Root plasticity is one of the key traits that play important roles in plant adaptation under such conditions. In this study, two contrasting genotypes, KDML105 and IRAT109, were examined to quantify the expression of plasticity in root branching at different positions in the toposequence (TP) and in a flat topography with a hardpan, both without a groundwater table, and subjected to SMF. Results showed that KDML105 …