Journal
LIFE-BASEL
Volume 12, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/life12101519
Keywords
root porosity; total dry matter; principal component analysis; correlation matrix; yield
Categories
Funding
- Bangladesh Agricultural University Research Systems (BAURES), Bangladesh [2019/15/BAU]
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Understanding the link between root morphological traits and yields is crucial for improving crop management. In this study, a pot experiment was conducted to evaluate root traits and grain yield performance of 13 rice cultivars. Considerable variations were observed among cultivars in root traits, total dry matter, and grain yield. Cluster analysis and principal component analysis identified promising cultivars with favorable root traits, total dry matter, and yield performance.
Understanding the link between root morphological traits and yields is crucial for improving crop management. To evaluate this link, a pot experiment was conducted in the net house of the Department of Agronomy, Bangladesh Agricultural University, Mymensingh, Bangladesh during the boro(dry season irrigated) rice growing season of 2019-20. Thirteen cultivars, named BRRI dhan29, BRRI dhan58, BRRI dhan67, BRRI dhan74, BRRI dhan81, Binadhan-8, Binadhan-10, Hira-2, Tej gold, SL8H, Jagliboro, Rata boro, and Lakhai, were used following a completely randomized design (CRD) with three replications. The cultivars were screened for root number (RN), root length (RL), root volume (RV), root porosity (RP), leaf area index (LAI), total dry matter (TDM), and grain yield (GY). A considerable variation in root traits, LAI, and TDM were found among the studied cultivars, and the highest GY (26.26 g pot(-1))was found for Binahan-10. Thirteen cultivars were grouped into three clusters using hierarchical cluster analysis, where clusters 1, 2, and 3 assembled with 3, 5, and 5 cultivars, respectively. Considering all of the studied traits, Cluster 3 (Binadhan-10, Hira-2, BRRI dhan29, BRRI dhan58, and Tejgold) showed promise, followed by Cluster 2 (BRRI dhan81, BRRI dhan67, SL8H, BRRI dhan74, and Binadhan-8). Principal component analysis (PCA) revealed that the RV, RDW, RFW, TDM, and GY are effective traits for rice cultivation.
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