Drought Effects on Yield Traits of Some Sunflower Inbred Lines

Pekcan, Veli; Evci, Goksel; Yilmaz, Mustafa; Nalcaiyi, A. Suna Balkan; Erdal, Şeküre Çulha; Çiçek, Nuran; Ekmekçi, Yasemin; Kaya, Yalçın

doi:10.17707/agricultforest.61.4.10

Cited by 18 publications

(24 citation statements)

References 2 publications

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“…The estimates for the general combining ability (GCA) of the parental genotypes (19) under normal and drought stress conditions for all 12 plant descriptors is provided in Table 3. The detailed estimates of specific combining ability (SCA) effects of hybrids for the all the traits under the two different water regimes are presented in supplementary material Table S1.…”

Section: Combining Ability Estimatesmentioning

confidence: 99%

“…In the first year of the experiment, a total of 52 A × R crosses and 8 B × R crosses along with parental lines were planted in February 2011 via a randomized complete block design (RCBD) with three replications. In the field, each parental genotype (19) and cross combination (60) was represented by a plot of two rows (3 m 2 each) with an inter-and intra-row spacing maintained at 60 cm and 30 cm, respectively. There were 20 plants (10 in each plot) of every parent and their hybrids in each replication.…”

Section: Experimental Layout and Materialsmentioning

confidence: 99%

“…The yield losses due to drought are prominent in sunflower [17,18]. In particular, the exposure during anthesis and dough stages can result in up to 80% crop losses [19]. Wild relatives of cultivated sunflower represent a potential source of important genes for the drought tolerance [20].…”

Section: Introductionmentioning

confidence: 99%

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Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

et al. 2018

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Sunflower is sensitive to drought, and furthermore, sunflower hybrids display limited cytoplasmic diversity. In addition, the wild cytoplasmic sources of sunflower are not well explored for their potential to introduce drought tolerance into newly developed hybrids. Therefore here, we carried out a Line × Tester-based genetic study using 19 sunflower genotypes representing, 13 cytoplasmic male sterile (CMS) lines from wild and conventional sources, 2 maintainer lines, and 4 restorer lines. The CMS and maintainer lines were crossed with restorer lines to develop sixty F1 hybrids. The parents and their hybrids were evaluated under two water regimes, normal irrigation and drought stress (i.e., withholding water). A total of twelve important plant descriptors were studied over a period of two years and the significant differences between parents and hybrids are reported here. More specifically, hybrid lines were higher in average values for all the descriptors. The contribution of female parent was more prominent in the expression of traits in hybrids as compared to male parents. The CMS sources varied significantly regarding seed yield per plant and other physiological traits. Proline content in the leaves of all the genotypes was three times higher in the water stress regime. Accession CMS-PKU-2A was identified as the best general combiner for leaf area and specific leaf weight., whereas CMS-234A was the best general combiner for biological yield and photosynthetic efficiency under both conditions. The cross combinations CMS-ARG-2A × RCR-8297, CMS-234A × P124R, and CMS-38A × P124R were found significant for biological yield, seed yield and oil content under both environments. Overall, this study provides useful information about the cytoplasmic effects on important sunflower traits and drought stress tolerance.

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Section: Combining Ability Estimatesmentioning

confidence: 99%

Section: Experimental Layout and Materialsmentioning

confidence: 99%

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Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

et al. 2018

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“…Several studies have shown the effect of climatic conditions on the agronomic characteristics of sunflower genotypes (Pereyra-Irujo, 2009;Pekcan et al, 2015;Robert, Rajasekar, & Manivannan, 2016). The beginning of the flowering period mainly depends on the genotype, temperature, and water availability (Kaleem, Hassan, & Saleem, 2009;Garcia Lopez et al, 2014).…”

Section: Initial Flowering Date (Ifd)mentioning

confidence: 99%

Sunflower Genotype Selection for Oil Production in the Pre-Amazon Region of Brazil

Shigaki¹,

Veras²,

Siqueira³

et al. 2019

JAS

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Part of the energy consumed in the world comes from limited sources, which eventually are expected to be depleted. The search for alternative sources to meet energy needs is crucial. Biodiesel derived from vegetable oils and animal fats stands out as a biodegradable and renewable alternative source of energy. Sunflower is among the top four oil crops produced worldwide, and Brazil has a high production potential for this crop. This study aimed to identify the sunflower genotypes with the highest potential for biodiesel production in the Pre-amazon region of Brazil, where the advance of agricultural frontier represents an important role on biodiesel production. This study was conducted over 2 years of observations. The following genotypes were used: M734 (T), Helio358, EMBRAPA 122, and BRS G 35. The following parameters were assessed: initial flowering date (IFD), physiological maturity date (PMD), plant height (PH), grain yield (YIELD), thousand achene weight (TAW), and oil content (%OC). The climatic conditions of each experimental period were distinctive and directly affected the results obtained. The genotype Embrapa 122 showed the best performance regarding yield and was recommended for the pre-Amazon region of Brazil as the best adapted genotype to the local environmental conditions.

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“…The yield losses due to drought are prominent in sunflower[17,18]. Especially, the exposure during anthesis and dough stages can result in up to 80% crop losses[19]. Wild relatives of cultivated sunflower are among the potential source of important genes for the drought tolerance[20].…”

Section: Introductionmentioning

confidence: 99%

Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

Tyagi

Kaur

Kaushik³

et al. 2018

Preprint

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Sunflower is sensitive to drought and its hybrids have a limited cytoplasmic diversity. The wild 10 cytoplasmic sources of sunflower are not well exploited to their potential for drought tolerance and hybrid 11 development. In this respect, we carried out a Line × Tester based genetic study using 19 sunflower 12 genotypes representing, 13 cytoplasmic male sterile (CMS) lines from wild and conventional sources, 2 13 maintainer lines, and 4 restorer lines. The CMS and maintainer lines were crossed with restorer lines to 14 develop sixty one-way F1 hybrids. The parents and their hybrids were evaluated under two water 15 regimes viz., normal irrigated and water stress. A total of twelve important plant descriptors were studied 16 over a period of two years. The significant differences were observed between parents and hybrids in both 17 water regimes. Hybrids were higher in average values for all the descriptors than parents. The role of 18 female parent was more prominent in the expression of traits in hybrids as compared to male parents. The 19CMS sources varied significantly regarding seed yield per plant and other physiological traits. Proline 20 content was three times higher in parents and their hybrids under water stress, and it was not correlated 21 with any other descriptor. Accession CMS-PKU-2A was identified as the best general combiner for leaf 22 area and specific leaf weight. Whereas, CMS-234A was the best general combiner for biological yield and 23 photosynthetic efficiency under both the conditions. The cross combinations CMS-ARG-2A × RCR-8297, 24 CMS-234A × P124R, and CMS-38A × P124R were found significant for biological yield, seed yield and oil 25 content under both environments. Overall, this study provides useful information about the cytoplasmic 26 effects on important sunflower traits and drought stress tolerance when used in the different 27 combinations. 28 29 30 1. Introduction 31 Sunflower (Helianthus annuus L.) is a commercially important oilseed crop, and its oil is 32 comparable to virgin oil olive for health promoting benefits [1,2]. Botanically, sunflower is a cross-pollinated 33 and self-incompatible plant [3]. Moreover, it out crosses freely with its wild relatives [4]. During the past few 34 decades, the area and production of sunflower have increased because of its day length neutrality, a wider 35 adaptability, and responsiveness to added inputs [5]. Similarly, these attributes of sunflower promote 36 sustainable crop production system when sunflower is used with other crops in crop rotation [6]. The central 37 component of sunflower breeding is the development of hybrids through cytoplasmic male sterility (CMS) 38 system [7]. CMS is the absence of fertile pollen in the plant hence eliminates the need for manual 39 emasculation for the development of a successful cross combination. CMS based hybrids system has been 40 extensively distributed throughout the plant kingdom and well exploited for achieving yield targets, disease 41 resistance, and drought tolerance [8-10]. 42CMS syst...

show abstract

Drought Effects on Yield Traits of Some Sunflower Inbred Lines

Cited by 18 publications

References 2 publications

Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

Sunflower Genotype Selection for Oil Production in the Pre-Amazon Region of Brazil

Characterization for Drought Tolerance and Physiological Efficiency in Novel Cytoplasmic Male Sterile Sources of Sunflower (Helianthus annuus L.)

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