Biomass partitioning during the life cycle of saffron (Crocus sativus L.) using regression models

Behdani, Mohammad; Al-Ahmadi, Majid Jami; Fallahi, Hamid-Reza

doi:10.1007/s12892-015-0082-0

Cited by 29 publications

(14 citation statements)

References 15 publications

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“…Higher CN in organic amendments is related to improvements in soil physical properties which led to significant improvements in buds emergence and early growth of saffron (Ghanbari and Khajoei-Nejad, 2017). Since buds are meristematic points which produce new replacement corms, the enhancement of bud emergence of saffron mother corm leads to more number of replacement corms (Behdani et al, 2016). Furthermore, AM-inoculation influenced significantly (24%) the UCW in both years of the experiment caused a greater CY by 33%, as compared with the non-inoculation (Table 3).…”

Section: Discussionmentioning

confidence: 94%

The possibility for improvement of flowering, corm properties, bioactive compounds, and antioxidant activity in saffron (Crocus sativus L.) by different nutritional regimes

Ghanbari

Khajoei-Nejad

Ruth

et al. 2019

Industrial Crops and Products

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Saffron as one of the most precious spices and medicinal plants, is highly valued for its bioactive compounds. Quantity and quality in spices and medicinal plants can be improved by the plant nutrition. In this field study the sole and integrated application of various fertilizers types and arbuscular-mycorrhizal fungus (AM), Glomus mosseae with respect to the flower-related traits, corm properties, quality, bioactive compounds and antioxidant activity of saffron at Kerman region, Iran was examined over a three years period. The fertilizer treatments comprised control (non-amended soil); 20 Mg ha -1 compost; 10 Mg ha -1 compost+ 8 Mg ha -1 biochar and chemical fertilizers. In each fertilizer treatment, planting bed was inoculated or non-inoculated with AM. The results showed that during the first flowering period (2015-16), neither AM nor fertilizer types affected flowering. Inoculation with AM particularly in the application of fertilizer treatments through positive effects on different corm properties during the vegetative growing seasons of 2015-16 and 2017-18, improved flower-related traits in the next flowering periods of 2016-17 and 2017-18. Picrocrocin and safranal content as well as total phenolic content and total flavonoid content in tepals were considerably enhanced by organic amendments and chemical fertilizers compared with the control. While the total phenolic content in stigmata was reduced by AMinoculation, the total flavonoid content and antioxidant activity of stigmata and tepals were not significantly influenced. Principal Component Analysis clearly discriminated the integrated nutritional treatments from the sole ones based on flower-related traits and corm properties which were positively related with integrated treatments. Organic amendments were characterized by a higher total phenolic content and antioxidant activity in stigmata. Chemical fertilizers alone or in AM-inoculation associated with quality attributes and total flavonoid content in tepals. Research findings confirmed that the integrated application of mycorrhizal fungus, organic, and chemical fertilizers significantly influences the overall production of saffron.

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Section: Discussionmentioning

confidence: 94%

The possibility for improvement of flowering, corm properties, bioactive compounds, and antioxidant activity in saffron (Crocus sativus L.) by different nutritional regimes

Ghanbari

Khajoei-Nejad

Ruth

et al. 2019

Industrial Crops and Products

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“…In addition to producing an extended root network which increases the nutrient uptake, stronger corms also lead to an increase in daughter corm number and weight that resulted in production of more flowers in the next year (Koocheki and Seyyedi, 2015). In addition to the corm-related properties, different responses of corms of different origin, can also be attributed to the flower buds initiation time and the environmental conditions during dormancy which may make differences in the buds emergence (Behdani et al, 2016). Strong bud emergence positively affects seedling establishment and improves growth and development of saffron plant during the first growing season (Ghanbari and Khajoei-Nejad, 2018).…”

Section: Interaction Of Corm Provenance and Growing Seasonmentioning

confidence: 99%

Effect of saffron (Crocus sativus L.) corm provenance on its agro-morphological traits and bioactive compounds

Ghanbari

Khajoei-Nejad

Ruth

2019

Scientia Horticulturae

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A three-year field study was conducted to examine the variation in agronomic performance, apo-carotenoids content, bioactive compounds and antioxidant activity of saffron corms originating from nine different regions of Iran. Significant differences were observed in flowerrelated traits, corm characteristics, picrocrocin and safranal contents, total phenolic content (TPC), total flavonoid content (TFC) and radical-scavenging activity between saffron corms of different provenance. The largest differences were observed for the flower-related traits and corm properties. Hierarchical classification of the saffron corms of different provenance resulted in three main groups. One of the three groups (provenance: Ferdows, Sarayan, and Bajestan) had high underground and above ground yield potential and also produced significantly higher picrocrocin and TFC in comparison to the other groups. In contrary the group comprising corms from Zarand, Torbat, Natanz, and Estahban were characterized by the lowest agronomic performance, TFC as well as lowest antioxidant activity. The third group, consisting of corms from Gonabad and Qaen, 2 represented medium levels of agronomic-related traits, and the highest TPC and antioxidant ability. These results were further explored and confirmed by principal component analysis (PCA).PCA revealed positive relationships between corm properties on the one hand and flower number and stigma yield on the other hand. No relation between agronomic related traits and quality features was observed. Furthermore, the results indicated a positive relationship between total flavonoid content and antioxidant capacity of saffron. These results can be used for the improvement of the yield and quality as well as in programs for selection of the most suitable corms for particular production locations.

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“…A slight initial increase in saffron yield with increasing N losses can be attributed to the high rate of initial N mineralization that results in temporary high uptake and decrease thereafter. A few regression models for estimating yield have already been given by 44 , 45 , but most of these models are based on other parameters like weather or crop growth parameters. The N management practice suggested in the present investigation will influence NUE and consequently N losses and ultimately yield.…”

Section: Discussionmentioning

confidence: 99%

Plummeting anthropogenic environmental degradation by amending nutrient-N input method in saffron growing soils of north-west Himalayas

Sharma

Kumar

Khan³

et al. 2021

Sci Rep

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Nitrous-oxide emission and nitrate addition from agriculture to earth’s environment are two main agriculture related anthropogenic causes of environmental degradation that needs greater attention. For addressing the aforesaid issue, new techniques/practices need to be developed and implemented. The present investigation, which was focused on this issue, resulted in developing a new mode of nitrogen (N) placement, i.e. ‘mid rib placement upper to corms in two splits (MRPU-2S)’, that could reduce nitrous oxide N emission by around 70.11% and, nitrate N leaching and runoff by around 68.26 and 67.09%, respectively, over conventional method, in saffron growing soils of northwest Himalayas. Besides plummeting environmental degradation, MRPU-2S further resulted in enhancing saffron yield by 33.33% over conventional method. The findings of the present investigation were used to develop new empirical models for predicting saffron yield, nitrate N leaching and nitrous-oxide N emission. The threshold limits of nitrate N leaching and nitrous oxide N emission have also been reported exclusively in the present study.

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Biomass partitioning during the life cycle of saffron (Crocus sativus L.) using regression models

Cited by 29 publications

References 15 publications

The possibility for improvement of flowering, corm properties, bioactive compounds, and antioxidant activity in saffron (Crocus sativus L.) by different nutritional regimes

The possibility for improvement of flowering, corm properties, bioactive compounds, and antioxidant activity in saffron (Crocus sativus L.) by different nutritional regimes

Effect of saffron (Crocus sativus L.) corm provenance on its agro-morphological traits and bioactive compounds

Plummeting anthropogenic environmental degradation by amending nutrient-N input method in saffron growing soils of north-west Himalayas

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