Effect of foliar application of micronutrients and salicylic acid on seed and oil yield of canola (Brassica napus L. cv. Neptune) under drought stress conditions

Authors

Abstract:

To investigate the effect of foliar application of micronutrients and salicylic acid on seed and oil yield of canola under drought stress conditions,  a field experiment was carried out as spilt factorial plots arrangemnts in randomized complet block design in 2016-17 and 2017-18 cropping seasons in Lorestan University, Khorramabad, Iran. Experimental treatments included; irrigation at two levels: (A1) irrigation at 80% of field capacity (non- stress) and (A2) irrigation at 30% of field capacity (drought stress) assigned to main plots and foliar application of combination of iron, zinc and manganese elements at two levels: (B1) zero, and (B2) concentration of 2‰ and salicylic acid foliar application at four levels: (C1) zero, (C2) 0.5, one (C3) and (C4) 1.5 mM were randomized in sub-plots. The results showed that water deficit stress decreased total chlorophyll content (12%), Silque number per plant (20.4 silique.plant-1) and increased peroxidase enzyme activity (22%). Application of micronutrients increased chlorophyll content (13%) and carotenoids (10%). Salicylic acid foliar application with concentration of 0.5 mM had the highest seed oil content (40.9%). The highest water productivity (1.26 kg.m-3) was obtained in irrigation at 80% of the field capacity, foliar application of two per thousand concentration of iron, zinc and manganeze, and foliar application of 1.5 mM salicylic acid (A1B2C4). In 2016-17, the highest seed yield (4427 kg.ha-1) was obtained from the application of irrigation at 80% of the field capacity, foliar application of 2‰ micronutrients and foliar application of 1.5 mM salicylic acid (A1B2C4). In 2017-18, the highest seed yield (4955 kg.ha-1) was obtained irrigation at 80% of the field capacity, foliar application of 2‰ micronutrients and foliar application of one mM salicylic acid (A1B2C3). The results showed that under drought stress conditions, simultaneous application of micronutrients and salicylic acid increased seed yield and significantly increased oil yield (1449 kg.ha-1) as compared with control treatment (803 kg.ha-1). Based on the results of this experiment, foliar application of iron, zinc, and manganese micronutrients together with 1.5 mM salicylic acid improved seed and oild yield of canola under drought stress conditions.  

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Effects of foliar application of micronutrients on seed yield and oil quality of canola (Brassica napus L. cv. Hyola401) under drought stress conditions

To evaluate the effects of drought stress by withholding of irrigation during reproductive stages and foliar application of micronutrients (Zn, Mn and B) on seed yiled and oil quality, an experiment was carried out as split plot arrangements in randomized complete block design with three replications at Safiabad Agricultural and Natural Resources Research and Education Center, Dezful, Iran, in ...

full text

effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars

این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...

Effect of plant density and foliar application of salicylic acid on agronomic traits and seed yield of rapeseed (Brassica napus L.) genotypes

To investigate the effect of plant density on agronomic traits of winter rapeseed (Brassica napus L.) cultivars under foliar application of salicylic acid a factorial split-plot arrangement in randomozide complet block design with three replications was carried out in Karaj, Iran, in two cropping seasons (2015-2017). Plant density at three levels of 40, 50 and 60 plants.m-2 and salicylic acid a...

full text

Effect of sowing date on seed yield and yield components of canola (Brassica napus L.) cultivars in north Khuzestan conditions

Determination of optimum sowing date plays an important role in crop management and achieving the higher yield. To study the effectof sowing date on seed yield of canola cultivars, a filed experiment was carried out as strip split plot block arrangement in randomized completed block design with three replications in 2017-18 and 2018-19 cropping seasons at Safiabad Agricultural and Natural Resou...

full text

Evaluation of growth and seed yield of new winter oilseed rape (Brassica napus L.) genotypes under terminal drought stress conditions

Breeding and production of drought tolerant cultivars for arid and semi-arid area is very important. The present experiment was carried out to evaluate the effects of drought stress on seed yield and yield components of oilseed rape as well as identification of high yielding and drought stress tolerant genotypes. Eighteen new winter oilseed rape lines and commercial cultivars were evaluated und...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 24  issue 3

pages  285- 301

publication date 2022-12

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

No Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023