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Maize (Zea mays L.) yield in response to light quality and drought stress.

机译：玉米（Zea mays L.）对光质和干旱胁迫有反应。

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Shade avoidance triggered by light with altered red to far-red ratio (R:FR) reflected from neighbouring weed species may reduce the tolerance of maize to subsequent drought stress. This study was conducted to test the hypothesis that a reduction in root biomass caused by low R:FR will reduce the ability of maize to recover from subsequent drought stress. Field studies were conducted under non-limiting resource conditions. Maize seedlings were exposed to low R:FR reflected from neighbouring weeds until the 6 leaf tip stage. Subsequently, drought stress was imposed until leaf rolling of the youngest leaf was observed in all plants, after which water was provided until harvest. Drought stress reduced yield components consistently. The interaction, however, of light quality effects on maize root biomass and drought stress was observed only with rate of leaf appearance in one year of the study. This lack of interaction may be attributed to severity and duration of the drought stress.

机译：邻近杂草物种反射的红变远红比率（R：FR）改变的光触发避光可能会降低玉米对随后干旱胁迫的耐受性。进行这项研究以检验以下假设：低R：FR导致根系生物量减少会降低玉米从随后的干旱胁迫中恢复的能力。实地研究是在非限制性资源条件下进行的。玉米幼苗暴露于低R：FR，该R：FR由邻近杂草反射至6叶梢阶段。随后，施加干旱胁迫直到在所有植物中观察到最年轻的叶子的卷叶，然后提供水直到收获。干旱胁迫持续降低了产量构成。然而，仅在研究的一年中，观察到光质量对玉米根生物量和干旱胁迫的相互作用仅与叶片外观的速率有关。这种相互作用的缺乏可能归因于干旱胁迫的严重程度和持续时间。

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作者
Obeidat, Wisam.;
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作者单位

University of Guelph (Canada).;

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授予单位 University of Guelph (Canada).;
学科 Agriculture Agronomy.;Biology Plant Physiology.;Agriculture Plant Culture.
学位 M.Sc.
年度 2011
页码 69 p.
总页数 69
原文格式 PDF
正文语种 eng
中图分类
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3. The effects of selenium and other micronutrients on the antioxidant activities and yield of corn (Zea mays L.) under drought stress. [J] . Sajedi N. A., Ardakani M. R., Madani H., Physiology and Molecular Biology of Plants . 2011,第3期

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机译：棉花（Gossypium hirsutum L.）能够从早期的氮胁迫中恢复过来，而玉米（Zea mays L.）的谷物产量对远距离氮的响应则远离行。
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7. Efeito de diferentes períodos de irrigação no desenvolvimento, produção e qualidade de sementes na cultura do milho (Zea mays L.) Effect of different irrigation periods in the development, yield and seedling quality in the maize (Zea mays L.) Crop [O] . João A. Galbiatti, Maurício J. Borges, Lara F. Bueno, 2004

机译：不同灌溉时期对玉米（Zea mays L.）种子发育，产量和品质的影响。

Maize (Zea mays L.) yield in response to light quality and drought stress.

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