Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice
Leaf thickness is an important morphological trait in rice. Its association to the yield potential, as of now has not been documented because of the shortage of the equipment which could conveniently measure the leaf thickness in rice. In this study, the thickness of top three leaves of 208 cultivar...
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KeAi Communications Co., Ltd.
2014-02-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311913604980 |
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| author | Chuan-guang LIU Xin-qiao ZHOU Da-gang CHEN Li-jun LI Ju-chang LI You-ding CHEN |
| author_facet | Chuan-guang LIU Xin-qiao ZHOU Da-gang CHEN Li-jun LI Ju-chang LI You-ding CHEN |
| author_sort | Chuan-guang LIU |
| collection | DOAJ |
| description | Leaf thickness is an important morphological trait in rice. Its association to the yield potential, as of now has not been documented because of the shortage of the equipment which could conveniently measure the leaf thickness in rice. In this study, the thickness of top three leaves of 208 cultivars had been determined by a nondestructive rice leaf thickness instrument for the research of the natural variation of leaves thickness and its association to yield traits in indica rice. The results showed that the flag leaf was the thickest, and the 2nd leaf was thicker than the 3rd leaf. Analysis of variance indicated the existence of wide genetic diversity of leaf thickness among the investigated indica rice genotypes. The tight correlation among the thicknesses of the top three leaves means that the leaf thickness traits share one genetic control system. Leaf thickness had a significant positive correlation with leaf length and a positive correlation with leaf width, indicated that thicker leaf was beneficial to increasing the single leaf area. The results of correlation analysis revealed that thicker leaf should be profitable to the leaf erection, higher numbers of grains per panicle and higher grains weight per panicle. However, the significantly negative correlation between leaf thickness and number of panicles per plant counteracted the profitability from increased grains weight per panicle, so that the correlations of the thicknesses of the top three leaves to yield and biomass were positive but not significantly. It has made great progress in the genetic improvement of leaves thickness in inbred indica rice breeding in Guangdong Province, China, since the 1990s. |
| format | Article |
| id | doaj-art-48c58d4c108f47f8bbc7861ea9cc1421 |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2014-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-48c58d4c108f47f8bbc7861ea9cc14212025-08-20T03:58:22ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192014-02-0113231632510.1016/S2095-3119(13)60498-0Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica RiceChuan-guang LIU0Xin-qiao ZHOU1Da-gang CHEN2Li-jun LI3Ju-chang LI4You-ding CHEN5LIU Chuan-guang, Tel: +86-20-87596275; Rice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaRice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaRice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaRice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaRice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaCorrespondence CHEN You-ding, Tel: +86-20-87596287; Rice Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of New Technology in Rice Breeding, Guangzhou 510640, P.R. ChinaLeaf thickness is an important morphological trait in rice. Its association to the yield potential, as of now has not been documented because of the shortage of the equipment which could conveniently measure the leaf thickness in rice. In this study, the thickness of top three leaves of 208 cultivars had been determined by a nondestructive rice leaf thickness instrument for the research of the natural variation of leaves thickness and its association to yield traits in indica rice. The results showed that the flag leaf was the thickest, and the 2nd leaf was thicker than the 3rd leaf. Analysis of variance indicated the existence of wide genetic diversity of leaf thickness among the investigated indica rice genotypes. The tight correlation among the thicknesses of the top three leaves means that the leaf thickness traits share one genetic control system. Leaf thickness had a significant positive correlation with leaf length and a positive correlation with leaf width, indicated that thicker leaf was beneficial to increasing the single leaf area. The results of correlation analysis revealed that thicker leaf should be profitable to the leaf erection, higher numbers of grains per panicle and higher grains weight per panicle. However, the significantly negative correlation between leaf thickness and number of panicles per plant counteracted the profitability from increased grains weight per panicle, so that the correlations of the thicknesses of the top three leaves to yield and biomass were positive but not significantly. It has made great progress in the genetic improvement of leaves thickness in inbred indica rice breeding in Guangdong Province, China, since the 1990s.http://www.sciencedirect.com/science/article/pii/S2095311913604980indica riceleaf thicknessvariationyield |
| spellingShingle | Chuan-guang LIU Xin-qiao ZHOU Da-gang CHEN Li-jun LI Ju-chang LI You-ding CHEN Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice Journal of Integrative Agriculture indica rice leaf thickness variation yield |
| title | Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice |
| title_full | Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice |
| title_fullStr | Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice |
| title_full_unstemmed | Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice |
| title_short | Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice |
| title_sort | natural variation of leaf thickness and its association to yield traits in indica rice |
| topic | indica rice leaf thickness variation yield |
| url | http://www.sciencedirect.com/science/article/pii/S2095311913604980 |
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