Comparative Effects of Heat Stress at Booting and Grain-Filling Stage on Yield and Grain Quality of High-Quality Hybrid Rice.
Comparative Effects of Heat Stress at Booting and Grain-Filling Stage on Yield and Grain Quality of High-Quality Hybrid Rice.
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启动时热应激和谷物填充阶段对高质量混合米的产量和谷物质量的比较影响。
DOI：
10.3390/foods12224093
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发表时间：
2023-11-11
期刊：
影响因子：
5.2
通讯作者：
Shi, Wanju
中科院分区：
文献类型：
--
作者：
Zhang, Xinzhen;Zhang, Qiuping;Yang, Juan;Jin, Yuhao;Wu, Jinshui;Xu, Hang;Xiao, Yang;Lai, Yusha;Guo, Zhiqiang;Wang, Jianlong;Shi, Wanju
水稻对高温胁迫高度敏感，对籽粒产量和品质构成挑战。然而，高温对优质杂交稻孕穗期品质的影响，以及孕穗期和灌浆期对籽粒品质的不同影响，目前尚不清楚。因此，4个优质杂交稻在孕穗期（HT1）和灌浆期（HT2）分别遭受对照（CK）和高温胁迫。与对照相比，HT1显著降低了穗粒数−1（16.1%）、结实率（67.5%）和粒重（7.4%），HT2显著降低了结实率（6.0%）和粒重（7.4%）。在品质方面，HT1和HT2均显著提高了大多数品种的垩白度、垩白粒率、糊化温度、峰粘度（PV）、谷粘度（TV）、终粘度（FV）和蛋白质含量，显著降低了粒长、粒宽、总淀粉含量和直链淀粉含量。然而，HT1与HT2的比较显示，HT2对垩白度、垩白粒率、PV、TV和FV的增加更大。HT1处理使籽粒长、粒宽、总淀粉含量和直链淀粉含量减少较多，蛋白质含量增加较多。此外，HT1导致支链淀粉含量显著降低，而HT2未观察到这一现象。因此，今后在选育和培育优质杂交水稻时，应仔细考虑不同阶段高温对产量和品质的影响。
Rice plants are highly sensitive to high-temperature stress, posing challenges to grain yield and quality. However, the impact of high temperatures on the quality of high-quality hybrid rice during the booting stage, as well as the differing effects of the booting and grain-filling stages on grain quality, are currently not well-known. Therefore, four high-quality hybrid rice were subjected to control (CK) and high-temperature stress during the booting (HT1) and grain-filling stages (HT2). Compared to the control, HT1 significantly reduced the spikelets panicle−1 (16.1%), seed setting rate (67.5%), and grain weight (7.4%), while HT2 significantly reduced the seed setting rate (6.0%) and grain weight (7.4%). In terms of quality, both HT1 and HT2 significantly increased chalkiness, chalky grain rate, gelatinization temperature, peak viscosity (PV), trough viscosity (TV), final viscosity (FV), and protein content in most varieties, and significantly decreased grain length, grain width, total starch content, and amylose content. However, a comparison between HT1 and HT2 revealed that the increase in chalkiness, chalky grain rate, PV, TV, and FV was greater under HT2. HT1 resulted in a greater decrease in grain length, grain width, total starch content, and amylose content, as well as an increase in protein content. Additionally, HT1 led to a significant decrease in amylopectin content, which was not observed under HT2. Therefore, future efforts in breeding and cultivating high-quality hybrid rice should carefully account for the effects of high temperatures at different stages on both yield and quality.
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DOI：
10.1016/b978-0-12-814332-2.00001-0
发表时间：
2019-01-01
期刊：
ADVANCES IN RICE RESEARCH FOR ABIOTIC STRESS TOLERANCE
影响因子：
--
作者：
Fahad, Shah;Adnan, Muhammad;Wang, Depeng
通讯作者：
Wang, Depeng
影响因子：
3.6
作者：
Lan, Yan;Sui, Xiaodong;Li, Tian
通讯作者：
Li, Tian
影响因子：
3.7
作者：
Lyman NB;Jagadish KS;Nalley LL;Dixon BL;Siebenmorgen T
通讯作者：
Siebenmorgen T
DOI：
10.1186/s12284-022-00562-8
发表时间：
2022-03-18
期刊：
Rice (New York, N.Y.)
影响因子：
--
作者：
Li P;Chen YH;Lu J;Zhang CQ;Liu QQ;Li QF
通讯作者：
Li QF
短期高温对水稻花后籽粒品质及淀粉粒的影响
影响因子：
2.9
作者：
Chen, Jianlin;Tang, Liang;Zhu, Yan
通讯作者：
Zhu, Yan