An experiment was conducted to find out Physico-chemical characterization of lodging tolerance in rice (Oryza sativa) stem for lodging tolerance at reproductive phase by studying relevant parameters in three different groups of rice germplasm viz., stable strong culm mutant lines (SP-351, SP-353, SP-360 and SP-70) ; lodging tolerant varieties (MTU1112, MTU-1121, MTU-1166 and MTU-1001) and lodging susceptible varieties (Swarna, BPT-5204, Tellahamsa and RNR-15048) The current study showed that the mutant lines showed greater culm diameter, linear density and physical strength, they were lodging tolerant (higher physical strength values), probably due to the mutagenic reasons. Lodging tolerant varieties in general have higher culm diameter, linear density and physical strength compared to lodging susceptible varieties. The chemical components of rice culm also effect the lodging tolerance nature of rice. |
