| Lodging causes yield reduction of rainfed lowland rice, particularly for the two popular varieties; KDML105 and RD6. Improving lodging resistance varieties has been in slow progress due to lack of understanding of morpho-physiological characters related to lodging resistance and also employing inappropriate protocol to evaluate lodging resistant among breeding lines. Experiments in wet season 2012 at UBN-RRC, NRM-RRC and UDN-RRC, were carried out to study plant characters in association with lodging resistance. Rice lines used for the study were breeding lines derived from the cross between IR68586/Leuang Hawm/KDML105, a group of short plant height lines together with a group of high yielding lines. Four standard check cultivars, i.e. Niaw Ubon 2,... |
