Modeling flowering response to temperature and photoperiod in safflower

Torabi, Benjamin; Adibnya, Mahin; Rahimi, Asghar; Azari, Arman

doi:10.1016/j.indcrop.2020.112474

Cited by 12 publications

(7 citation statements)

References 23 publications

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“…Winter planting of safflower delayed seedling emergence while summer planting sped the process. Torabi et al (2015) found that there was a significant and negative correlation between days to emergence and temperature in safflower with 22 °C being optimal. The temperatures for the winter and summer safflower planting in the current study averaged 17.33 °C and 23.97 o C, respectively.…”

Section: Discussionmentioning

confidence: 96%

Growth, development and yield of safflower genotypes in response to environmental variations

Mosupiemang,

Emongor,

Malambane

et al. 2023

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Safflower (Carthamus tinctorius L.) is a crop that is drought tolerant and grown in arid and semi-arid lands (ASALs) for its commercial utility as vegetable oil, animal feed, cut flower, leafy vegetable, pharmaceuticals, foods colorant, textile dye, cosmetics, and biofuel production. These important attributes make safflower an ideal crop to diversify the economy and improve the socioeconomic status of many smallholder farmers in ASALs. This study evaluated the growth, development, and yield of five safflower genotypes in three different locations in the southern part of Botswana under farmers’ fields during winter and summer. The results showed that there was a significant (P ≤ 0.05) genotypic variability for all phenological development (days to emergence, stem elongation, and flowering), plant growth (plant height and shoot biomass), the yield and yield components (number of branches/plant, number of capitula/plant and 1000-seed weight), oil content and oil yield. However, genotypes did not vary significantly (P ≥ 0.05) in number of primary branches/plant. The results showed that winter planting significantly (P ≤ 0.05) promoted safflower growth and yield than planting in summer. The growth, development, yield, and yield components of safflower genotypes varied across locations with Ramonaka being the most favorable. The GGE biplot revealed that genotype Kenya-9819 was found to be the most stable and adaptable with above-average yields. Sebele winter planting was the best representative environment and most suitable for discriminating genotype performance. The genotype by yield*trait combination (GYT) biplot revealed that genotypes ranked as Kenya9819 > Turkey > Sina > PI537636 > Gila. The results suggested that safflower was best planted in winter and that Kenya9819 was the best genotype to be planted in the greater Gaborone region.

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Section: Discussionmentioning

confidence: 96%

Growth, development and yield of safflower genotypes in response to environmental variations

Mosupiemang,

Emongor,

Malambane

et al. 2023

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“…Flowering time is affected by many external factors, among which vernalization, photoperiod, and ambient temperature are the most significant (Xiao et al, 2013). Photoperiod not only regulates the differentiation and formation of fruit-bearing organs but also plays an important role in the flowering process (Torabi et al, 2020). In addition, vernalization plays an important role in the transformation from vegetative growth into reproductive growth in plants (Sarah et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Temperature and Photoperiod Change the Flowering Process in Prunella vulgaris by Inducing Changes in Morphology, Endogenous Hormones, Carbon/Nitrogen Metabolites, and Gene Expression

Tang

et al. 2022

J. Amer. Soc. Hort. Sci.

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The spicas of Prunella vulgaris are widely used in the medical, beverage, and ornamental fields. Temperature and photoperiod are the two main ecological factors that determine the transformation of many plants from vegetative growth to reproductive growth. To explore the response of P. vulgaris flowering to temperature and photoperiod induction, we adopted vernalization long-day, vernalization short-day, nonvernalization long-day, and nonvernalization short-day treatments. The results showed that the morphology (total number of leaves, number of branches, number of leaves per branch, and branch length) of the vernalization treatment groups was significantly different from that of other nonvernalization groups, and the photosynthetic pigments, net photosynthetic rate, water use efficiency, stomatal conductance, intercellular CO2 concentration, and transpiration rate increased in the vernalization treatment group. However, the gibberellin 3 (GA3), indole-3-acetic acid and zeatin riboside (ZR) contents were significantly increased under the short-day treatments groups, and the results were the same for the expression of endogenous hormone synthesis genes, except for abscisic acid (ABA). The flowering-related genes soc1, elf3, svp, ga20ox, and cry1 were highly expressed under the vernalization short-day. Therefore, the induction of vernalization is more conducive to the increase in the photosynthetic rate. Temperature and photoperiod synergistically induced the synthesis and accumulation of starch, sugar, amino acids, and protein and affected the content of endogenous hormones and the expression of genes involved in their synthesis. GA3 and ZR had thresholds for their regulation of the flowering process in P. vulgaris, and high concentrations of ABA promoted flowering. Temperature and photoperiod coordinate the expression of the flowering-related genes soc1, elf3, svp, ga20ox, and cry1, thereby affecting the flowering process in P. vulgaris.

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“…Las temperaturas óptimas para el crecimiento de canola, cártamo y cebada son de 20 a 23 °C y de 25.6 °C para triticale; mientras que las temperaturas máximas son de 30 °C para canola, 37 °C para cebada y de 40 °C para triticale y cártamo (Robertson et al, 2002;Gol et al, 2017;Munyon et al, 2020;Torabi et al, 2020). Los mayores rendimientos de MS en las fechas de siembra tempranas del 16 de noviembre y 7 de diciembre coinciden con las temperaturas máximas promedio más cercanas (24.8 a 25.05 °C) a las temperaturas óptimas; mientras que, en las tardías del 28 de diciembre y 18 de enero, las temperaturas aumentaron a 26.3 y 27.9 °C, respectivamente (Figura 1), las cuales están más cerca de las temperaturas máximas, especialmente en la canola.…”

Section: Composición Nutritiva Y Rendimiento De Nutrientes En Los Cic...unclassified

Composición nutritiva y productividad de forrajes alternativos de otoño-invierno en diferentes fechas de siembra del norte de México

López-Jara

Sánchez

Reyes-González

et al. 2022

Remexca

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El objetivo de este estudio fue evaluar la composición nutritiva y la productividad de forrajes alternativos en diferentes fechas de siembra. Lo forrajes alternativos fueron canola y cártamo y los tradicionales fueron cebada y triticale. Las cuatro fechas de siembra fueron: 16 de noviembre, 7 de diciembre, 28 de diciembre y 18 de enero, durante dos años. Al comparar con cebada y triticale, la canola y el cártamo tuvieron menor fibra detergente neutro (FDN) y mayor proteína cruda (PC), pero similar energía neta para lactancia (ENL). La fecha de siembra tuvo poco impacto en la composición nutritiva de estos forrajes, pero el rendimiento de nutrientes fue afectado significativamente. Los rendimientos de materia seca (MS), PC y ENL decrecieron al retrasar la fecha de siembra en todas las especies. Canola, cártamo y cebada presentaron los mayores rendimientos de nutrientes el 16 de noviembre y 7 de diciembre, mientras que en triticale se presentaron entre el 16 de noviembre y 28 de diciembre. Cebada y triticale produjeron los rendimientos más altos de MS y ENL en todas las fechas de siembra, ambas especies mostraron el mayor rendimiento de FDN en las tres primeras fechas de siembra durante los dos años. En conclusión, la siembra temprana mejora la composición nutritiva y la productividad en canola y cártamo, por ello, estos cultivos representan una buena opción como forraje alternativo sembrado a finales de noviembre o principios de diciembre en el norte de México.

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Modeling flowering response to temperature and photoperiod in safflower

Cited by 12 publications

References 23 publications

Growth, development and yield of safflower genotypes in response to environmental variations

Growth, development and yield of safflower genotypes in response to environmental variations

Temperature and Photoperiod Change the Flowering Process in Prunella vulgaris by Inducing Changes in Morphology, Endogenous Hormones, Carbon/Nitrogen Metabolites, and Gene Expression

Composición nutritiva y productividad de forrajes alternativos de otoño-invierno en diferentes fechas de siembra del norte de México

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