Ecophysiology of saffron

Moghaddam, Parviz Rezvani

doi:10.1016/b978-0-12-818638-1.00008-3

Cited by 14 publications

(8 citation statements)

References 28 publications

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“…The findings of current research showed that saffron is cultivated in soils with Xeric or Aridic soil moisture regimes, which could provide plant corms with a dry environment in warm seasons. This fact is very important to land evaluation for planting new fields because the propagation of saffron corms is very vulnerable to fungi disease and other infections when its surrounding environment is warm and moist (Bazoobandi et al., 2020; Rezvani‐Moghaddam, 2020). Also, keeping the soil dry and free of soil moisture in the summer during corm dormancy is very important for keeping the corms healthy and consequently the yield of the upcoming cropping year.…”

Section: Discussionmentioning

confidence: 99%

“…In similar findings, it was reported that the saffron flower number is positively correlated with the SY, however, the correlation of flower number with single flower weight was negatively significant (Gresta et al., 2009). Saffron flower and corm yield is determined by the influence of several factors consisting of climatic, edaphic, agronomic, and to some extent physiographic factors (Rezvani‐Moghaddam, 2020). Birjand, Sarayan, and Golshan fields had more SY with more flower number and flower weight.…”

Section: Discussionmentioning

confidence: 99%

“…This was the reason why saffron yield had a significant relationship with field age in our study. The growth rate of daughter corms mainly depends on the leaf photosynthesis of the mother plant; hence, proper leaves development (number and area) has a considerable influence on producing larger daughter corm and consequently increase the yield of the next year (Rezvani‐Moghaddam, 2020). The saffron SY each year generally depends on the stored corm nutrients from last year's growth and not directly on the soil and fertilization of the current year (Shahandeh, 2020).…”

Section: Discussionmentioning

confidence: 99%

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Climate and management factors influence saffron yield in different environments

Pirasteh‐Anosheh,

Babaie‐Zarch,

Nasrabadi

et al. 2023

Agrosystems Geosci & Env

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The economic yield of saffron (Crocus sativus L.) has a wide range in different parts of the world, and it is not clear why this considerable difference exists. In this research saffron yield and yield components of 13 fields with varied geographic and climatic conditions were studied to determine which factor(s) are more important. Among the studied factors, temperature, field age, soil texture, bulk density, soil and water pH, irrigation events, and growth period had the greatest effect on saffron yield. The highest dry stigma weight, as economic yield, was obtained in three regions of Birjand (27 kg ha−1), Sarayan (24 kg ha−1), and Golshan (23.5 kg ha−1), followed by Neyshabur (18 kg ha−1) and Kashmar (17.5 kg ha−1), which had lower temperatures, coarse soil, balanced soil, and water pH, and longer growth periods. The average yields were increased until the sixth or seventh year (20.8 kg ha−1) and then decreased, however, it seems to be economic before the 10th year. Lower temperatures in early fall were important to stimulate flowering and increase yield in that year, and warm and sunny days in the spring are important for next year yields. We found that the optimal temperature for the first irrigation is ∼16°C and for flowering is ∼5°C–10°C. High‐yield fields did not have higher irrigation water volumes but more irrigation events (6.3), resulting in less water volume per irrigation. No direct relationship was observed between manure consumption and yield; however, processed manure increases yield by improving the soil structure and moisture retention ability. Fields with a complete chemical fertilizer composition had higher yields. It was concluded higher yields are achieved in saffron fields where regions are higher in altitude (at least 1300 m) and lower temperature in early autumn with complete fertilizer composition (especially sulfur and iron). There was no evidence of high salinity sensitivity of saffron.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Climate and management factors influence saffron yield in different environments

Pirasteh‐Anosheh,

Babaie‐Zarch,

Nasrabadi

et al. 2023

Agrosystems Geosci & Env

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“…The seedling growth conditions were determined by analyzing the relative growth rate (RGR) and the net assimilation rate (NAR). The RGR was analyzed by taking RGR = (1/W) (dW/dt) in which dW is the increase in dry weight per increase in time (dt) divided by existing biomass (W) (Rezvani-Moghaddam, 2020 ). However, NAR was obtained by using the formula (1/L A ) (dW/dt) wherein L A represents the leaf area divided on dW/dt (ratio of dry weight increase to change in time) (Moualeu-Ngangue et al, 2017 ).…”

Section: Methodsmentioning

confidence: 99%

Transformation of Endophytic Bipolaris spp. Into Biotrophic Pathogen Under Auxin Cross-Talk With Brassinosteroids and Abscisic Acid

Yousaf

Hussain

Iqbal

et al. 2021

Front. Bioeng. Biotechnol.

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Auxin is the reciprocal signaling molecule, which interferes with other phyto-hormonal and physiological processes during plant–microbes interaction. In this regard, Bipolaris spp., a growth-promoting endophytic fungus was used to inoculate pre-stressed Zea mays seedlings with yucasin (IAA inhibitor). The IAA-deficient host was heavily colonized by the endophyte that subsequently promoted the host growth and elevated the IAA levels with a peak value at 72 h. However, the seedling growth was inhibited later (i.e., at 120 h) due to the high levels of IAA that interfered with the activity of phytoalexins and brassinosteroids. Such interference also modulated the endophytic fungus from symbiotic to biotrophic pathogen that left the host plants defenseless.

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“…It has gradually become more popular and is used for a number of diverse applications in the clothing (dyeing), cosmetics, medicine, and food industries [2]. Saffron is currently cultivated in various climatic conditions, such as in arid countries in southern Europe, North Africa, Middle East, and Central Asia, which are areas with low precipitation, hot summers, and cold winters [3]. Iran, India, Greece, Afghanistan, Morocco, Spain, Italy, China, and Azerbaijan are the major saffron producing countries [4].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Dense Planting System on the Technical Efficiency of Saffron Production and Land Use Sustainability: Empirical Evidence from Gonabad County, Iran

et al. 2022

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The cultivation of saffron, which is one of the most expensive agricultural products in the world, is the main source of livelihood and economic wellbeing for the rural communities of Gonabad county in the eastern part of Iran. Nevertheless, farm monitoring in the region has shown that many saffron growers apply a high-density planting system for more profit. This practice results in the loss of land productivity after a six-year production cycle. As a consequence, farmers abandon the cultivated lands and move to plant saffron in available virgin lands. The purpose of this study is to analyse the technical efficiency of saffron farms and its determinants with an emphasis on the role of planting density. A survey was conducted in 2019, and a cross-sectional random sampling technique was used to select 110 saffron growers. We first assessed the technical efficiency of farms using a data envelopment analysis (DEA) model with input orientation. In the next step, efficiency scores were regressed on explanatory variables using OLS and bootstrapped truncated regression to identify efficiency related factors. We find that planting density negatively influenced technical efficiency, suggesting that it is necessary for saffron growers to be educated on the negative impacts of the dense planting system.

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Ecophysiology of saffron

Cited by 14 publications

References 28 publications

Climate and management factors influence saffron yield in different environments

Climate and management factors influence saffron yield in different environments

Transformation of Endophytic Bipolaris spp. Into Biotrophic Pathogen Under Auxin Cross-Talk With Brassinosteroids and Abscisic Acid

The Influence of Dense Planting System on the Technical Efficiency of Saffron Production and Land Use Sustainability: Empirical Evidence from Gonabad County, Iran

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