Ecology, Environment and Conservation Paper

Vol 26, April Suppl. Issue, 2020; Page No.(193-198)

MORPHOLOGY-BASED GENETIC DIVERSITY OF EARLY MATURITY RICE GERM PLASM, THE RELATION TO YIELD COMPONENT

Indria W. Mulsanti, Nani Yunani and Trias Sitaresmi

Abstract

Assessment of rice germplasm is fundamental to provide based information of rice diversity for the improvement of current and future rice varieties. Most of local rice germplasm characteristic had late maturity and low yield productivity,to develop modern variety it is important to identify early maturity of local rice germplasm. This study examined the phenotype structure of 112 early maturity local rice accession, collected trough-out different region in Indonesia, and how it is related to yield and yield component. A total of 20 qualitative and quantitative character were examined. Clustering analysis between accession were analyzed using multivariate statistical analysis with ward method. Correlation coefficient and regression equation were carried out by STAR software. Phenotypic diversity of yield component expressed on early maturity rice germplasm observed in this study. Based on cluster analysis, rice germplasm grouped in to 6 main group. Most of the quantitative characters, showed positive correlation with filled grain weight per plant,that represented yield potential. Whereas a positive correlation of qualitative characters, only showed between pubescence of leaf blade surface and culm habitus. This study is expected to give proper information for the selection of early maturity rice germplasm with high yield component as parental lines to be utilized in breeding program as proper parental line(s).

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