Cultivar and seasonal effects on the contribution of pre-anthesis assimilates to safflower yield

Koutroubas, Spiridon

doi:10.1016/s0378-4290(04)00122-4

Cited by 27 publications

(36 citation statements)

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“…Plant height is a trait under genetic control, but its manifestation depends on prevailing environmental factors. Our results concur with the results of others (Pascual-Villalobos and Alburquerque 1996, Koutroubas et al 2004) documenting that safflower genotypes differed in plant height. Overall, lower plant heights in the current study were probably caused by high altitude.…”

Section: Oil Contentsupporting

confidence: 93%

Growth and yield of safflower genotypes grown under irrigated and non-irrigated conditions in a highland environment

Öztürk¹,

Özer²,

Polat³

2008

Plant Soil Environ.

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Producers in highland and semiarid regions have difficulty in increasing diversity in crop rotations due to unfavorable conditions imposed by cool temperatures, inadequate rainfall, and shorter growing periods. In such conditions, safflower appears as a promising alternative because it is cold and drought tolerant. The objective of this study was to determine the responses of the hybrid and open-pollinated safflower genotypes to irrigated and non-irrigated conditions in a highland environment. For this reason, the field research was performed during the years of 2001 and 2002 in eastern Anatolia, Turkey. According to the results of the study, safflower genotypes tested were well adapted to the cool and short-season conditions in this region. The response of seed yield to genotype varied depending on the growing seasons. The non-irrigated plants produced nearly the same seed yield as irrigated ones. Average seed yields of safflower genotypes tested were 914.3 and 928.0 kg/ha in 2001, and 1143.6 and 1139.9 kg/ha in 2002 years for irrigated and non-irrigated experiments, respectively. In general, the genotypes differed in all of the investigated traits. In both irrigated and non-irrigated experiments genotype × year interactions were very significant for all parameters. This research shows that in semiarid and highland environments safflower has a big potential value as an oilseed crop under dryland conditions.

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Section: Oil Contentsupporting

confidence: 93%

Growth and yield of safflower genotypes grown under irrigated and non-irrigated conditions in a highland environment

Öztürk¹,

Özer²,

Polat³

2008

Plant Soil Environ.

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“…Proline also works to scavenge free radicles thus strengthens the biological membrane that results in adjustment of cell metabolism (Verbruggen and Hermans, 2008). Soluble sugar content also changes due to drought stress and play a positive role under moisture limited conditions (Koutroubas et al, 2004). The increased accumulations of soluble sugars maintain turgidity in leaves and protect the membranes and proteins from dehydration (Sawhney and Singh, 2002).…”

Section: Introductionmentioning

confidence: 99%

Morpho-physiological and Biochemical Responses of Camelina (Camelina sativa crantz) Genotypes under Drought Stress

Ahmed¹,

Waraich²,

Ahmad³

et al. 2017

IJAB

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To cite this paper: Ahmed, Z., E.A. Waraich, R. AbstractCamelina (Camelina sativa) a member of mustard family is being introduced as an alternate oilseed crop. Camelina is disease resistant, low input requiring crop with a short life cycle (80-100 days). The purpose of this study was to assess the response of camelina genotypes for seedling growth, gas exchange traits and some biochemical attributes under drought stress. Plants of two different camelina genotypes (7126 and 8046) were grown in pots maintained with four drought stress levels i.e., control (100% FC) and water stress (80, 60 and 40% FC). Drought stress significantly decreased shoot and root length, shoot and root fresh weight and their dry weights, photosynthetic rate (Pn), stomatal conductance (g s ), transpiration rate (E) and soluble proteins while free proline, soluble sugars and amino acid content increased in both camelina genotypes. Genotype 7126 showed better response regarding seedling traits, gas exchange traits and had higher accumulation of free proline, soluble sugars, amino acids and soluble proteins as compared to genotype 8046 at all drought stress levels. The results suggested that the drought tolerance potential of camelina is positively associated with the regulation of gas exchange characteristics and accumulation of osmoprotectants.

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“…For example, Koutroubas et al (2004) observed the positive role of total soluble sugar contents in safflower accessions differing in drought stress. Moreover, the combined effects of soluble carbohydrate and proline content were observed in several drought stress plant species and have been attributed to a reduction in the rates of protein synthesis and an increase in proteolytic activity, both of which tend to cause an increase in the total soluble nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Effect of water deficiency on seed quality and physiological traits of different safflower genotypes

Amini¹,

Arzani

Karami³

2014

Turk J Biol

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Safflower is one of the most adapted oilseed crops to the drought-prone arid lands. This experiment was carried out to evaluate the effects of water deficiency on some physiological traits such as proline content, soluble carbohydrate content, relative water content (RWC), and seed quality using 64 safflower genotypes grown under normal and water-deficient field conditions. Plants were grown under normal irrigation until the branching growth stage, when water deficiency was applied to the plants. Results of combined analysis of variance showed the significant effects of genotype, water deficiency, and their interactions on the tested traits. RWC, seed oil content, and oil yield significantly decreased whereas proline, soluble carbohydrate, and protein content increased in response to water deficiency. Cluster analysis divided genotypes into 3 groups of sensitive, tolerant, and semitolerant genotypes under water-deficient conditions. The second group (tolerant group) possessed the lowest seed yield loss due to water stress and produced the highest seed protein content and seed oil yield under water-deficient conditions. The superior seed yield and quality was closely related to the physiological properties of the plants, resulting in higher leaf proline, carbohydrate, and RWC under water-deficient conditions. The results suggest that leaf proline content, carbohydrate content, and RWC would be useful traits to select for water stress-tolerant plants in safflower.

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Cultivar and seasonal effects on the contribution of pre-anthesis assimilates to safflower yield

Cited by 27 publications

References 0 publications

Growth and yield of safflower genotypes grown under irrigated and non-irrigated conditions in a highland environment

Growth and yield of safflower genotypes grown under irrigated and non-irrigated conditions in a highland environment

Morpho-physiological and Biochemical Responses of Camelina (Camelina sativa crantz) Genotypes under Drought Stress

Effect of water deficiency on seed quality and physiological traits of different safflower genotypes

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