Temperatures and the growth and development of maize and rice: a review
Temperatures and the growth and development of maize and rice: a review
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DOI：
10.1111/gcb.12389
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发表时间：
2014-02-01
影响因子：
11.6
通讯作者：
Porter, John R.
中科院分区：
文献类型：
--
作者：
Sanchez, Berta;Rasmussen, Anton;Porter, John R.
由于全球陆地表面变暖，预计极端气温事件将更频繁、更强烈地发生，从几个方面影响主要谷类作物的生长和发育，从而影响到粮食安全的生产部分。在这项研究中，我们已经确定了水稻和玉米作物对温度的反应在不同的，但一致的，物候期和发育阶段。对大约140篇科学文章的文献审查和数据汇编确定了水稻和玉米的关键温度阈值和对极端温度影响的反应，补充了早期对小麦的研究。致死温度和基数温度，连同误差估计，已确定的物候期和发展阶段。遵循前人的研究方法，我们收集并统计分析了三种作物叶片发生、地上部生长和根系生长等关键生理过程以及播种至出苗、开花和灌浆等最敏感的物候期的温度阈值。我们的总结表明，基数温度是保守的研究之间，似乎是很好地定义在所有三种作物。开花期和成熟期是水稻以及小麦和玉米最敏感的温度阶段。我们呼吁进一步实验研究逾越阈值温度的影响，这样的反应可以纳入作物的影响和适应模型。
Because of global land surface warming, extreme temperature events are expected to occur more often and more intensely, affecting the growth and development of the major cereal crops in several ways, thus affecting the production component of food security. In this study, we have identified rice and maize crop responses to temperature in different, but consistent, phenological phases and development stages. A literature review and data compilation of around 140 scientific articles have determined the key temperature thresholds and response to extreme temperature effects for rice and maize, complementing an earlier study on wheat. Lethal temperatures and cardinal temperatures, together with error estimates, have been identified for phenological phases and development stages. Following the methodology of previous work, we have collected and statistically analysed temperature thresholds of the three crops for the key physiological processes such as leaf initiation, shoot growth and root growth and for the most susceptible phenological phases such as sowing to emergence, anthesis and grain filling. Our summary shows that cardinal temperatures are conservative between studies and are seemingly well defined in all three crops. Anthesis and ripening are the most sensitive temperature stages in rice as well as in wheat and maize. We call for further experimental studies of the effects of transgressing threshold temperatures so such responses can be included into crop impact and adaptation models.