Physiologic and agronomic traits in safflower under various irrigation strategies, planting methods and nitrogen fertilization

Shahrokhnia, Mohammad Hossein; Sepaskhah, Ali Reza

doi:10.1016/j.indcrop.2016.10.021

Cited by 51 publications

(32 citation statements)

References 30 publications

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“…There was a significant positive correlation between seed yield and capitulum diameter, seed number in the secondary capitulum, ground cover percentage, thousand seeds weight and biological yield. A similar status was also reported by Mahasi et al (2006), Janmohammadi (2015), and Shahrokhnia and Sepaskhah (2017).…”

Section: Resultssupporting

confidence: 89%

Effects of nitrogen and micronutrients on the growth of safflower under limited water conditions in a high-elevation region

Fattahi¹,

Janmohammadi²,

Dashti³

et al. 2018

biologija

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Beneficial nanoparticles are at the leading edge of the rapidly developing field of nanotechnology. Nanotechnology applied to nanofertilizers could play a fundamental role in improving the availability of plant nutrients under unfavourable environmental conditions. To evaluate the effects of different levels of nitrogen fertilizer (0, 75, and 150 kg ha–1) and nanostructured micronutrients (Zn, Fe, Cu) on the seed yield of spring safflower, a study was carried out in the highland region of Baneh, Iran. Specific objectives were to assess the effects of combined application of nano-chelated micronutrients and nitrogen on safflower under rainfed conditions. Assessments of morphological traits revealed that application of nitrogen at the rate of 75 kg ha–1 significantly increased the plant height, canopy spread, stem diameter, and plant dry weight. Also, ground cover, canopy spread, capitulum diameter, and the number of the secondary branches were considerably affected by nano-chelated micronutrients, so the highest values were observed in the plants grown with the application of zinc and copper. Results showed that the effects of interaction of nitrogen and micronutrients were significant for the biological yield, seed number, 1000-seed weight, the percentage of unfilled seeds, and seed yield. A comparison of combined treatments showed that the best performance was recorded for plants grown with the application of N0-Zn, N75-Zn, and N150-Cu. The results of the present experiment agreed with the conclusion that utilization of nitrogen may affect the efficiency of micronutrients. Altogether, the results suggested that the application of intermediate levels of nitrogen fertilizers along with nano-chelated Zn can improve safflower production under rainfed condition.

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Section: Resultssupporting

confidence: 89%

Effects of nitrogen and micronutrients on the growth of safflower under limited water conditions in a high-elevation region

Fattahi¹,

Janmohammadi²,

Dashti³

et al. 2018

biologija

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“…However, in terms of climate, most of developing countries are located in semi-arid areas which are characterized by highly variable and unpredictable rainfall and total precipitations below potential evapotranspiration, making them frequently engaged with drought stress. However, even at mild intensity, drought stress can inhibit photosynthesis and stomatal conductance significantly, resulting in considerable yield reductions (Shahrokhnia & Sepaskhah, 2017).…”

Section: Introductionmentioning

confidence: 99%

The effects of silicon and titanium on safflower (Carthamus tinctorius L.) growth under moisture deficit condition

Janmohammadi

Mohamadi

Shekari

et al. 2017

AAS

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Safflower is one of important crop in semi-arid regions of the world, where the precipitations are limited. In order to investigate the effect of foliar spray of nano-silicon dioxide (10 and 20 mM) and nano titanium dioxide (25 and 50 mM) and water-deficit stress (irrigation after 110 mm evaporation) on growth parameters and yield components of spring safflower a field experiment was carried out at the highland semi-arid region, in, North West of Iran. Water deficit stress significantly reduced morpho-physiological traits such as ground cover, canopy width, leaf fresh mass, leaf are and plant height) as well as yield components (e.g. capitulum diameter, seed mass and seed number per capitulum). However, the plants grown under water deficit condition showed the higher harvest index than well irrigated plants. Comparison of the foliar treatments showed that the both nano-particles (silicon and titanium) improved the plant growth and yield components over the control. However, the effect of nanosilicon was more prominent than titanium. The highest amount of seed oil was recorded under well irrigated condition (irrigation after 60 mm evaporation) with foliar application of nano-titanium. The percentage of palmitic acid, arachidic acid and myristic acid in seed increased by nano-titanium application. Altogether, principal component analysis indicated that spray of 10 mM nano silicon dioxide was best foliar treatments under all moisture regimes.Key words: safflower; agronomic traits; foliar spraying; nanoparticles; principal component analysis; semi-arid region IZVLEČEK UČINKI SILICIJA IN TITANA NA RAST ŽAFRANIKE (Carthamus tinctorius L.) V RAZMERAH POMANKANJA VODEŽafranika je pomembna poljščina v semiaridnih območjih, kjer so padavine omejene. Z namenom ugotavljanja učinkov pršenja listov z nano-silicijevim (10 in 20 mM) in nano titanovim dioksidom (25 in 50 mM) ter stresa zaradi vodnega deficita (namakanje po 110 mm evaporacije) na rastne parametre in komponente pridelka pomladanske žafranike je bil izveden poljski poskus na višinskem semiaridnem območju severno zahodnega Irana. Vodni deficit je značilno zmanjšal morfološko-fiziološke lastnosti (pokritost tal, širino krošnje, svežo maso listov, listno površino in višino rastlin) kot tudi komponente pridelka (premer koška, maso semen in število semen na košek). Kljub temu so imele rastline, ki so rastle v razmerah pomanjkanja vode večji žetveni indeks kot dobro namakane. Primerjava foliarnih obravnavanj je pokazala, da so oboji nano delci (silicijevi in titanovi) izboljšali rast rastlin in komponente pridelka v primerjavi s kontrolo. Učinek silicijevih nano delcev je bil bolj izražen kot titanovih. Največja vsebnost olja v semenih je bila v dobro namakanih rastlinah (namakanje po 60 mm evaporacije) s foliarno dodajanimi nano delci titana. Odstotki palmitinske, arahidonske in miristične kisline v semenih so se povečali po uporabi nano titanovih delcev. Analiza glavnih komponent je pokazala, da je bilo pršenje z 10 mM nano silicijeva dioksida najboljše foliarno...

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“…Omid et al (2012) found that the heads number was more affected than the grain yield when irrigation was interrupted in the early stages, as was also reported by Movahhedy-Dehnavy, Modarres-Sanavy and Mokhtassi-Bidgolet (2009). Shahrokhnia and Sepaskhah (2017) observed that the sensitive growth phase was stem elongation. Similar results were found by Singh et al (2016a) in the southern plains in New Mexico, USA, where gradual increase of irrigation resulted in an increase in the height of safflower genotypes.…”

Section: Resultsmentioning

confidence: 99%

Irrigated Safflower in Phenological Stages of Brazilian Southeast Dry Season

Santos

Bassegio

Silva³

et al. 2018

R_I

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This study was conducted in order to determinate the effect of irrigation regime imposed on development stages over growth components of safflower plants (Carthamus tinctorius L.) in autumn seeding in Engenheiro Coelho, SP, Brazil. The field test was accomplished at Red-Yellow Argisoil, typically fertile sandy texture type B, a completely randomized design with eight irrigation regimes and three replications. The irrigation regimes consisted of: non-irrigation (dry farming), irrigation at vegetative stage (V), irrigation at flowering stage (F), irrigation in the grain formation stage (G), irrigation in vegetative and flowering (VF), irrigation in vegetative and grain formation (VG), irrigation at flowering and grain formation (FG) and irrigation in vegetative, flowering and grain formation (VFG) (control). The study result shows that safflower is benefited by irrigation in vegetative period; however, irrigation is also effective when applied during flowering period on treatment that was under dry farming. The water shortage due to the irrigation restriction during the vegetative stage reduces morphological components of safflower growth. The grain and oil yield is affected by water restriction in all safflower cultivation stages. Treatment with water availability throughout the vegetative and flowering period produced 895 kg ha–1 of grain yield.

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Physiologic and agronomic traits in safflower under various irrigation strategies, planting methods and nitrogen fertilization

Cited by 51 publications

References 30 publications

Effects of nitrogen and micronutrients on the growth of safflower under limited water conditions in a high-elevation region

Effects of nitrogen and micronutrients on the growth of safflower under limited water conditions in a high-elevation region

The effects of silicon and titanium on safflower (Carthamus tinctorius L.) growth under moisture deficit condition

Irrigated Safflower in Phenological Stages of Brazilian Southeast Dry Season

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