当前位置: X-MOL 学术Braz. J. Bot. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Impact of drought stress and stress modifiers on water use efficiency, membrane lipidation indices, and water relationship indices of pot marigold (Calendula officinalis L.)
Brazilian Journal of Botany ( IF 1.6 ) Pub Date : 2020-09-23 , DOI: 10.1007/s40415-020-00651-2
Esmaeil Gholinezhad

This study was conducted as a factorial layout based on completely randomized design in three replications in the 2018. The experimental factors included irrigation intervals with 4 levels (3, 6, 9, and 12 days) and drought stress modifiers at four levels (control (non-spraying), spraying with salicylic acid (2 mM), Glycine betaine (5 mM), and zinc sulfate (5 g L−1). The results indicated that the effect of different levels of drought stress and stress modifiers on yield, water use efficiency, membrane lipidation indices, and water relationship indices were significant. The highest water use efficiency based on dry yield (WUEDY) (2.33 kg m−3) and water use efficiency based on essential oil yield (WUEEOY) (0.22 kg m−3) were obtained from irrigation intervals of three days. With increasing irrigation interval from three days to 12 days, dry yield, leaf water content, WUEEOY, cellular membrane stability (CMS), membrane stability index (MSI), total chlorophyll, chlorophyll index, canopy temperature depression (CTD), and relative water content decreased. However, injury index (I), water saturation deficit (WSD), osmotic potential (OP), electrolyte leakage (EL), essential oil percentage, and leaf temperature increased significantly. It seems that at all levels of irrigation, spraying with glycine betaine compared to other modifiers was more effective in increasing WUEDY, WUEEOY, CMS, MSI, total chlorophyll and relative water content, and decrease in I and WSD and EL. Based on the findings, it can be stated that with increasing the irrigation intervals, quantitative and qualitative yields of the pot marigold plant are reduced. The application of drought stress modifiers can reduce the effects of drought stress on this plant, thereby raising WUEDY and WUEEOY.

中文翻译:

干旱胁迫和胁迫调节剂对金盏花(Calendula officinalis L.)水分利用效率、膜脂化指数和水分关系指数的影响

叶含水量、WUEEOY、细胞膜稳定性(CMS)、膜稳定性指数(MSI)、总叶绿素、叶绿素指数、冠层温度降低(CTD)和相对含水量下降。然而,伤害指数(I)、水分饱和度不足(WSD)、渗透势(OP)、电解质泄漏(EL)、精油百分比和叶温显着增加。似乎在所有灌溉水平上,与其他改良剂相比,喷洒甘氨酸甜菜碱在增加 WUEDY、WUEEOY、CMS、MSI、总叶绿素和相对水分含量以及降低 I、WSD 和 EL 方面更有效。根据研究结果,可以说随着灌溉间隔的增加,盆栽万寿菊植物的数量和质量产量都会降低。
更新日期:2020-09-23
down
wechat
bug