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首页> 外文期刊>Protoplasma: An International Journal of Cell Biology >Hormonal changes with uniconazole trigger canopy apparent photosynthesis and grain filling in wheat crop in a semi-arid climate
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Hormonal changes with uniconazole trigger canopy apparent photosynthesis and grain filling in wheat crop in a semi-arid climate

机译：uniconazole触发冠层的激素变化表观光合作用和谷物在半干旱气候中的小麦作物填充

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摘要

Phytohormones are important for the growth and development of plants. The objective of the experiment was to investigate the effect of foliar application of uniconazole (UCZ) at the four-leaf stage on hormone crosstalk and production of winter wheat. An experiment was carried out during 2015-2016 and 2016-2017 growth season in a semi-arid region, where UCZ at a concentration of 0 (CK, distilled water), 15 (FU15), 30 (FU30), and 45 (FU45) mg L(-1)were sprayed on wheat crop at the four-leaf stage at a rate of 138.8 mL m(-2). UCZ alters the endogenous hormone contents in flag leaves and in grains. UCZ inhibited gibberellic acid (GA) in flag leaves and in grains where the lower GA with UCZ improved the zeatin + zeatin riboside (Z + ZR) and abscisic acid (ABA) contents. The lower GA and higher Z + ZR and ABA contents with UCZ-treated plants improved the chlorophyll content and canopy apparent photosynthesis (CAP) as well as the grain-filling characteristics. The Z + ZR and ABA in flag leaves were positively correlated with chlorophyll content and CAP value while negatively with GA. Moreover, the Z + ZR and ABA were positively correlated with maximum grain weight, mean grain-filling rate, and maximum grain-filling rate, while negatively with GA level. Treatment FU(30)significantly improved the chlorophyll content, CAP value, spike weight, grain-filling characteristics, and hormone contents of Z + ZR and ABA while it decreased the GA level. The hormone crosstalk with UCZ significantly increased the yield of wheat crop, where FU(30)treatment performs better.
机译：植物激素对植物的生长发育很重要。本试验旨在研究四叶期叶面施用烯效唑（UCZ）对冬小麦激素串扰和产量的影响。在2015-2016年和2016-2017年的生长季，在半干旱地区进行了一项试验，在小麦四叶期以138.8 mL m（-2）的速率喷洒浓度为0（对照，蒸馏水）、15（FU15）、30（FU30）和45（FU45）mg L（-1）的UCZ。UCZ改变旗叶和籽粒中的内源激素含量。UCZ抑制旗叶和籽粒中的赤霉素（GA），其中较低的GA与UCZ一起提高了玉米素+玉米素核苷（Z+ZR）和脱落酸（ABA）的含量。UCZ处理植株的GA含量较低，Z+ZR和ABA含量较高，提高了叶绿素含量、冠层表观光合速率（CAP）和籽粒灌浆特性。旗叶Z+ZR和ABA与叶绿素含量和CAP值呈正相关，与GA呈负相关。此外，Z+ZR和ABA与最大粒重、平均灌浆速率和最大灌浆速率呈正相关，与GA水平呈负相关。FU（30）处理显著提高了小麦的叶绿素含量、冠幅值、穗重、灌浆特性、Z+ZR和ABA的激素含量，降低了GA水平。与UCZ的激素串扰显著提高了小麦作物的产量，其中FU（30）处理表现更好。

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  • 作者

    Ahmad Irshad; Kamran Muhammad; Meng Xiangping; Ali Shahzad; Ahmad Shakeel; Gao Zhiqiang; Liu Tiening; Han Qingfang;

  • 作者单位

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Shanxi Agr Univ Coll Agr Taigu 030801 Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

    Northwest A&

    F Univ Minist Agr Coll Agron Key Lab Crop Physioecol &

    Tillage Sci North Weste Yangling 712100 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 细胞形态学;
  • 关键词

    Chlorophyll content; Canopy apparent photosynthesis; Hormone crosstalk; Grain-filling; Uniconazole; Wheat;

    机译：叶绿素含量;冠层表观光合作用;激素串扰;籽粒填充;uniconazole;小麦;

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