[Objective] This study was to investigate the physical-chemical properties and the agronomical traits of a leaf color mutant K7231,so as to provide scientific basis for its use as breeding material.[Method]Before head...[Objective] This study was to investigate the physical-chemical properties and the agronomical traits of a leaf color mutant K7231,so as to provide scientific basis for its use as breeding material.[Method]Before heading,the contents of chlorophyll and soluble sugar of leaf color mutant K7231 were measured,and its agronomic traits after mature were investigated.[Result]The contents of chlorophyll and soluble sugar of leaf color mutant K7231 before heading assumed a regular change law.Except the lower yield,K7231 performed similar agronomic traits compared with the CK.[Conclusion]This study provided scientific basis for the utilization of this mutant.展开更多
[Objective] Understanding the photosynthetic characteristics of the rice CMS line Renong 1A with leaf color markers can promote its utilization in breeding. [Method] The wild type （WT） of rice spontaneous mutant wit...[Objective] Understanding the photosynthetic characteristics of the rice CMS line Renong 1A with leaf color markers can promote its utilization in breeding. [Method] The wild type （WT） of rice spontaneous mutant with virescent-yellow leaves that was the male parent of Renong 1A was selected as the control, and the contents of photosynthetic pigments, photosynthetic parameters, light-response curve and chlorophyll fluorescence kinetic parameters of Renong 1A were measured at the tillering stage. [Result] New leaves of Renong 1A yellowed obviously in the early period. Chlorophyll content, photosynthetic rate and values of parameters Pdt, F/Fm Fv＇/Fm＇,φPSII, and ETR of Renong 1A were all significantly lower than those of the control. However, there was no difference between Renong 1A and the control in terms of photosynthetic rate of leaves turning green. [Conclusion] The photosynthetic capacity of new leaves of Renong 1A decreased at the early stage due to the reduction of chlorophyll content, and then it became normal at the later stage with the increase of chlorophyll content.展开更多
基金Supported by Special Program for Technology Innovation from Yibin Municipal Bureau of Science(No.200905105)~~
文摘[Objective] This study was to investigate the physical-chemical properties and the agronomical traits of a leaf color mutant K7231,so as to provide scientific basis for its use as breeding material.[Method]Before heading,the contents of chlorophyll and soluble sugar of leaf color mutant K7231 were measured,and its agronomic traits after mature were investigated.[Result]The contents of chlorophyll and soluble sugar of leaf color mutant K7231 before heading assumed a regular change law.Except the lower yield,K7231 performed similar agronomic traits compared with the CK.[Conclusion]This study provided scientific basis for the utilization of this mutant.
文摘[Objective] Understanding the photosynthetic characteristics of the rice CMS line Renong 1A with leaf color markers can promote its utilization in breeding. [Method] The wild type （WT） of rice spontaneous mutant with virescent-yellow leaves that was the male parent of Renong 1A was selected as the control, and the contents of photosynthetic pigments, photosynthetic parameters, light-response curve and chlorophyll fluorescence kinetic parameters of Renong 1A were measured at the tillering stage. [Result] New leaves of Renong 1A yellowed obviously in the early period. Chlorophyll content, photosynthetic rate and values of parameters Pdt, F/Fm Fv＇/Fm＇,φPSII, and ETR of Renong 1A were all significantly lower than those of the control. However, there was no difference between Renong 1A and the control in terms of photosynthetic rate of leaves turning green. [Conclusion] The photosynthetic capacity of new leaves of Renong 1A decreased at the early stage due to the reduction of chlorophyll content, and then it became normal at the later stage with the increase of chlorophyll content.
