Plant Productions

Evaluation of Morpho-Physiological and Biochemical Characteristics of Sunflower (Helianthus annuus L.) in Response to Different Irrigation Regimes and Spraying of Zn and Mn Nano-Fertilizers

Majid Ghanbari; Ali Mokhtassi-Bidgoli; Kamran Mansour Ghanaei-Pashaki; Parniyan Talebi-Siah Saran

Volume 44, Issue 4 , December 2021, , Pages 475-488

https://doi.org/10.22055/ppd.2020.33041.1886

Abstract

AbstractIntroductionSunflower (Helianthus annuus L.) is an annual plant belonging to the genus Helianthus and Astraceae (Kazi et al., 2002). Among abiotic stresses, drought stress is ... Read More AbstractIntroductionSunflower (Helianthus annuus L.) is an annual plant belonging to the genus Helianthus and Astraceae (Kazi et al., 2002). Among abiotic stresses, drought stress is considered to be the most influential type of stress in the production of oil seeds in the world and can greatly reduce production on many arable lands. One of the primary effects of drought is the reduction of water content of plant tissues (Ghanbari et al., 2016). Nutrient spraying is one of the common methods of supplying nutrients to higher plants, whose efficiency is greater than soil fertilizer use when soil conditions are poor (Hay and Porter, 2006). Mn, as an activating factor in many enzymes, especially the enzymes involved in photosynthetic processes in plants. Manganese deficiency reduces growth, causing necrosis, and early fall of leaves (Tewari et al., 2005). Zn acts as part of the enzyme structure or as a cofactor. It is used to make RNA, DNA metabolism of carbohydrates, oils and proteins (Shahrokhi et al., 2012). To investigate the effect of Zn Nano-fertilizer in combination with Mn Nano-fertilizer on improving sunflower resistance under water deficit conditions by measuring changes in yield, yield components and biochemical properties of sunflower were studied here to see the reults Materials and MethodsThis research was carried out as a factorial experiment in a randomized complete block design with three replications in Lahijan Agricultural Jihad Research Farm in 2019. Factorial combinations of four treatments of water deficit stress (15% (un-stressed control), 30% (mild stress), 45% (moderate stress) and 60% (severe stress) of FC depletion) and four spraying (Control (distilled water), Zn, Mn and Zn+Mn Nano-fertilizer) with 4 mg.l-1 concentration were examined. Drip irrigation (T-tape) applied the row length in each experimental plot was 6 m, 50 cm apart. The distance between the plots and between the repetitions was 1 and 3.5 m, respectively. Results and DiscussionThe results revealed that the interaction between irrigation regime and spraying was significant in harvest index, peroxidase, seed protein, seed oil and oil yield; in other traits the main effects were significant. Co-application of Zn and Mn Nano-chelates in panicle and stem diameter, grain yield, photosynthesis rate and protein yield increased by 26.69, 29.77, 34.37, 61.30 and 57.17%, respectively. Spraying of zinc and manganese nano-chelates also improved grain yield and protein yield by 17.86 and 36.68%, respectively, under severe stress conditions. ConclusionIn general, it can be concluded that the application of Zn and Mn Nano-fertilizers is effective in increasing grain yield, protein and oil yield and photosynthesis under stress conditions and it is very effective in resistance to sunflower plant by reducing the activity of stress enzymes and reducing severe yield loss. Finally, co-application of zinc and manganese Nano-fertilizers depending on the stress areas is recommended for optimal performance under drought stress condition.

Effect of Irrigation Interval and Nitrogen Fertilizer on Seed Yield and Pigment Contents in Dill

M. Amiri; S. Mansoorifar; K.S. Asilan; H. Heidari

Volume 38, Issue 4 , March 2016, , Pages 71-80

https://doi.org/10.22055/ppd.2016.11843

Abstract

In order to determine the optimum irrigation interval and nitrogen fertilizer rate for dill in Kermanshah climate conditions, an experiment was conducted as split plot design with three ... Read More

Effects of drought stress and mycorrhizal fungi on some morphophysiological characteristics of lettuce (Lactuca sativa L.)

H. Badvi; N. Alemzade Ansari; M. Mahmoodi sorestani; F. Eskandari

Volume 38, Issue 3 , December 2015, , Pages 27-39

https://doi.org/10.22055/ppd.2015.11444

Abstract

Arbuscular mycorrhizal fungi benefit from a symbiotic relationship with the plant, which is currently one of the strategies used to reduce stress. The experiment was factorial in a ... Read More

Investigating of grain growth and contribution of stem reserves in grain yield of barley (Hordeum vulgare L.) cultivars under terminal drought conditions.

M. Pureisa; M. Nabipour; M. Meskarbashee

Volume 38, Issue 1 , May 2015, , Pages 41-53

https://doi.org/10.22055/ppd.2015.11117

Abstract

The duration of grain filling period and the rate of this period determines final grain weight in barley. In this study, in order to investigate the effect of final drought stress on ... Read More

Quantity and quality improving of soybean yield by zinc and iron foliar application under drought stress

M. Jalili Sheshbahre; M. Movahhedi Dehnavi; S.M. Hashemi jazi

Volume 36, Issue 2 , September 2013, , Pages 111-122

Abstract

In order to study the effect of foliar application of zinc and iron on yield quantity and quality of Soybean (Glycine max (L.)) under drought stress, an experiment was carried out as ... Read More

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Keywords = Drought

Evaluation of Morpho-Physiological and Biochemical Characteristics of Sunflower (Helianthus annuus L.) in Response to Different Irrigation Regimes and Spraying of Zn and Mn Nano-Fertilizers

Abstract

Effect of Irrigation Interval and Nitrogen Fertilizer on Seed Yield and Pigment Contents in Dill

Abstract

Effects of drought stress and mycorrhizal fungi on some morphophysiological characteristics of lettuce (Lactuca sativa L.)

Abstract

Investigating of grain growth and contribution of stem reserves in grain yield of barley (Hordeum vulgare L.) cultivars under terminal drought conditions.

Abstract

Quantity and quality improving of soybean yield by zinc and iron foliar application under drought stress

Abstract