Repo Dosen ULM

The qTSN4 Effect on Flag Leaf Size, Photosynthesis and Panicle Size, Benefits to Plant Grain Production in Rice, Depending on Light Availability

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dc.contributor.author Fabre, Denis
dc.contributor.author Adriani, Dewi Erika
dc.contributor.author Dingkuhn, Michaël
dc.contributor.author Ishimaru, Tsutomu
dc.contributor.author Punzalan, Bermenito
dc.contributor.author Lafarge, Tanguy
dc.contributor.author Clement-Vidal, Anne
dc.contributor.author Luquet, Delphine
dc.date.accessioned 2020-08-10T02:53:04Z
dc.date.available 2020-08-10T02:53:04Z
dc.date.issued 2016-05
dc.identifier.citation Metrics en_US
dc.identifier.issn 1664-462X
dc.identifier.uri https://repo-dosen.ulm.ac.id//handle/123456789/17421
dc.description.abstract Increasing rice yield potential is essential to secure world food supply. The quantitative trait locus qTSN4 was reported to achieve yield increases by enhancing both source and sink capacity. Three greenhouse experiments and one field experiment in the Philippines were conducted to study near-isogenic lines (NILs) in two genetic backgrounds, subjected to treatments with restricted light resources through shading (greenhouse) or population density (field and greenhouse). A consistent promotion of flag leaf width, leaf area and panicle size in terms of spikelet number was observed in the presence of qTSN4, regardless of environment. However, grain production per plant was enhanced only in one greenhouse experiment. An in-depth study demonstrated that increased flag leaf size in the presence of qTSN4 was associated with increased photosynthetic rates, along with lower SLA and greater N content per leaf weight and per area. This was emphasized under low light situation as the qTSN4-NILs did not express shade acclimation traits in contrast with the recipient varieties. The authors conclude that qTSN4 is a promising subject for further physiological studies, particularly under limited radiation. However, the QTL alone may not be a reliable source of increased yield potential because its effects at the plant and population scale are prone to genotype × environment interactions and the increased panicle size is compensated by the adaptive plasticity of other morphological traits. en_US
dc.description.sponsorship Dikti, Agreenium en_US
dc.language.iso en_US en_US
dc.publisher Frontiers en_US
dc.subject Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING en_US
dc.title The qTSN4 Effect on Flag Leaf Size, Photosynthesis and Panicle Size, Benefits to Plant Grain Production in Rice, Depending on Light Availability en_US
dc.type Article en_US


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