PJB-2024-121
Evaluation of germplasm resources and selection of elite individuals of Gardenia jasminoides
Bihua Chen, Juan Zhang, Shurong Xia, Weiwei Xie, Wenkai Li, Binbin Zhang, Lanqi Zhang, Junjie Wu, Shimi Lin, Yueping Kong, Dianquan Zhang, Kegang Wu and Abdul Wahab
Abstract
Gardenia jasminoides are widely cultivated in Fuding, Fujian Province and other places in China, but continuous large-scale reafforestation and multiple generations using a single clone, caused production instability and soil degradation. In this study, the germplasm resources of G. jasminoides were collected and evaluated, and the elite individuals and germplasm resources suitable for further cultivation were screened out. Variance analysis and comparison were conducted based on the fruit number, fruit weight, fruit length, tree height, tree diameter, and seed setting rate from 21 germplasm resources tested. The 11th and 9th germplasm resources (from central Jiangxi Province and Hunan Province), with excellent yield, tree height and crown width, and the geniposide content conforming to China Pharmacopoeia regulations, were selected as the most and the second optimal germplasm resources, and the 9th germplasm resources (Hunan Province) was selected as the second optimal germplasm resources. The analysis results showed that taking the fruit weight (yield) as the first index, and the geniposide content conforming to Chinese Pharmacopoeia regulations as the main indexs, 13 elite individuals were screened out, named as Min Lin Zhi No.1-13, respectively. The selection rate of elite trees was 5.9%. Compared with the population average, the fruit number, fruit weight, tree height (except No.4), ground diameter (except No.4) and crown width increased to over 248.23%, fruit weight increased to over 360.17%, tree height increased to over 151.47% (except Min Lin Zhi No.4), ground diameter increased to more than 119.65% (except Min Lin Zhi No.4), and crown width increased to more than 146.32%. Fruit weight, fruit number, tree height, ground diameter and crown width of all elite trees were higher than the control
To Cite this article:
Chen, B., J. Zhang, S. Xia, W. Xie, W. Li, B. Zhang, L. Zhang, J. Wu, S. Lin, Y. Kong, D. Zhang, K. Wu and A. Wahab. 2025. Evaluation of germplasm resources and selection of elite individuals of Gardenia jasminoides. Pak. J. Bot., 57(2): DOI: http://dx.doi.org/10.30848/PJB2025-2(17)
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