scholarly journals Identification of Stable QTL for Time to Maturation in Virginia-Type Peanut (Arachis hypogaea L.)

2021 ◽  
Author(s):  
Srinivas Kunta ◽  
Sara Agmon ◽  
Ilan Hedvat ◽  
Yael Levy ◽  
Ye Chu ◽  
...  
Keyword(s):  
Genetic Control ◽  
Arachis Hypogaea ◽  
Genetic Map ◽  
Agronomic Traits ◽  
Block Design ◽  
Snp Array ◽  
Pleiotropic Effect ◽  
Snp Markers ◽  
Pod Yield ◽  
Arachis Hypogaea L

Abstract Background Time-to-maturation (TTM) is an important trait contributing to adaptability, yield and quality in peanut (Arachis hypogaea L). Virginia market-type peanut belongs to the late-maturing A. hypogaea subspecies with considerable variation in TTM within this market type. Consequently, planting and harvesting schedule of peanut cultivars including Virginia market-type need to be optimized to maximize yield and grade. Little is known regarding the genetic control of TTM in peanut due to the challenge of phenotyping and limited DNA polymorphism. Here, we investigated the genetic control of TTM within the Virginia market-type peanut using a SNP-based high-density genetic map. Methods A recombinant inbred line (RIL) population of 260 lines, derived from a cross between two Virginia-type cultivars with contrasting TTM, was phenotyped in the field for two years following a randomized complete block design. TTM was determined by maturity index (MI) using a hull-scrape method. Other agronomic traits potentially related to TTM such as pod yield (PY), harvest index (HI), branching habit (BH), 50 pod weight (50PW), 50 seed weight (50SW) and shelling percentage (SP) were recorded as well. Genotyping was performed with the Affymetrix Axiom_Arachis2 SNP array. Genetic map construction and QTL mapping were performed by the Joinmap and MapQTL software, respectively.Results A genetic map was constructed with 1833 SNP markers covering a total map distance of 1773.5 cM. Thirty QTL were identified for all measured traits. Among the four QTL regions for MI, two stable QTL regions were identified on chromosomes A04 and B03, which explained phenotypic variation of 9.3% and 11.9%, respectively. QTL for HI were found to share the same loci as MI on chromosomes B03, B05, and B06, demonstrating the possible pleiotropic effect of HI on TTM. Significant but smaller effects on MI were detected for branching habit, pod yield and shelling percentage.Conclusions This study identified consistent QTL regions conditioning TTM for Virginia market-type peanut. The information and materials generated here can be used to further develop molecular markers to select peanut idiotypes suitable for diverse growth environments.

scholarly journals Identification of consistent QTL for time to maturation in Virginia-type Peanut (Arachis hypogaea L.)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Srinivas Kunta ◽  
Sara Agmon ◽  
Ilan Chedvat ◽  
Yael Levy ◽  
Ye Chu ◽  
...  
Keyword(s):  
Genetic Control ◽  
Arachis Hypogaea ◽  
Genetic Map ◽  
Agronomic Traits ◽  
Block Design ◽  
Pleiotropic Effect ◽  
Snp Markers ◽  
Arachis Hypogaea L ◽  
Peanut Genome ◽  
Important Trait

Abstract Background Time-to-maturation (TTM) is an important trait contributing to adaptability, yield and quality in peanut (Arachis hypogaea L). Virginia market-type peanut belongs to the late-maturing A. hypogaea subspecies with considerable variation in TTM within this market type. Consequently, planting and harvesting schedule of peanut cultivars, including Virginia market-type, need to be optimized to maximize yield and grade. Little is known regarding the genetic control of TTM in peanut due to the challenge of phenotyping and limited DNA polymorphism. Here, we investigated the genetic control of TTM within the Virginia market-type peanut using a SNP-based high-density genetic map. A recombinant inbred line (RIL) population, derived from a cross between two Virginia-type cultivars ‘Hanoch’ and ‘Harari’ with contrasting TTM (12–15 days on multi-years observations), was phenotyped in the field for 2 years following a randomized complete block design. TTM was estimated by maturity index (MI). Other agronomic traits like harvest index (HI), branching habit (BH) and shelling percentage (SP) were recorded as well. Results MI was highly segregated in the population, with 13.3–70.9% and 28.4–80.2% in years 2018 and 2019. The constructed genetic map included 1833 SNP markers distributed on 24 linkage groups, covering a total map distance of 1773.5 cM corresponding to 20 chromosomes on the tetraploid peanut genome with 1.6 cM mean distance between the adjacent markers. Thirty QTL were identified for all measured traits. Among the four QTL regions for MI, two consistent QTL regions (qMIA04a,b and qMIB03a,b) were identified on chromosomes A04 (118680323–125,599,371; 6.9Mbp) and B03 (2839591–4,674,238; 1.8Mbp), with LOD values of 5.33–6.45 and 5–5.35 which explained phenotypic variation of 9.9–11.9% and 9.3–9.9%, respectively. QTL for HI were found to share the same loci as MI on chromosomes B03, B05, and B06, demonstrating the possible pleiotropic effect of HI on TTM. Significant but smaller effects on MI were detected for BH, pod yield and SP. Conclusions This study identified consistent QTL regions conditioning TTM for Virginia market-type peanut. The information and materials generated here can be used to further develop molecular markers to select peanut idiotypes suitable for diverse growth environments.

scholarly journals Yield Response of Peanut (Arachis hypogaea L.) to Compound Fertilizer

2020 ◽  
Vol 9 (1) ◽  
pp. 41-49
Author(s):  
Siti Maryam Harahap ◽  
Khadijah El Ramija ◽  
Erythrina Erythrina
Keyword(s):  
Arachis Hypogaea ◽  
Seed Yield ◽  
Block Design ◽  
Yield Response ◽  
Pod Yield ◽  
Compound Fertilizer ◽  
Arachis Hypogaea L ◽  
Upland Conditions ◽  
North Sumatra ◽  
Fertilizer Rates

Harahap SM, Ramija KE, Erythrina E. 2020. Yield response of peanut (Arachis hypogaea L.)  to compound fertilize. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands 9(1): 41-49.The purpose of this study was to evaluate the application effects of three different compound fertilizers on yield, and assess the income increase at different rates of compound fertilizers. Three compound fertilizers namely NPK 14-0-46, NPK 19-9-19 and NPK 11-11-11 was conducted at three different farmers’ field in Langkat District, North Sumatra Province under upland conditions. In each farmers’ field, a Randomized Complete Block Design was applied with four replications per treatment.  Seven treatments tested consisted of full rate of farmer fertilizer practice and six rates of each compound fertilizer plus half rate of farmer fertilizer practice. In each of compound fertilizer tested, pod yield and seed yield increased quadratically as increasing compound fertilizer rates. The highest pod yield and seed yield of peanut were 1649 kg/ha and 1072 kg/ha, respectively with half rate of FFP + 200 kg of NPK 14-0-46. For compound fertilizer NPK 19-9-19 the highest pod yield and seed yield were 1632 kg/ha and 1032 kg/ha with half rate of FFP + 500 kg of NPK 19-9-19 while for compound fertilizer NPK 11-11-11 the highest pod yield seed yield were 1421 kg/ha and 930 kg/ha with half rate of FFP + 250 kg of NPK 11-11-11. However, adding each  half rate of farmer fertilizer practices with  200 kg of NPK 14-0-46 or 300 kg of NPK 19-9-19 or 250 kg of NPK 11-11-11 with HypoMa-1 cultivar gave the highest values of the benefit for the farmers under upland soil in Langkat, North Sumatra.

Effect of herbicides on weed control and yield of kharifgroundnut (Arachis hypogaea L.)

2016 ◽  
Author(s):  
J. C. Patel ◽  
D. M. Patel ◽  
B. J. Patel ◽  
P. P. Patel ◽  
Shaukat Ali
Keyword(s):  
Weed Control ◽  
Arachis Hypogaea ◽  
Block Design ◽  
Dry Weight ◽  
Wheat Crop ◽  
College Of Agriculture ◽  
Pod Yield ◽  
Randomized Block Design ◽  
Arachis Hypogaea L ◽  
Free Treatment

A field experiment was carried out during kharif 2009-10 to 2011-12 at Agronomy Instructional Farm, C. P. College of Agriculture, S. D. Agricultural University, Sardarkrushinagar, Gujarat to study the effect of herbicides on weed control and yield of groundnut (Arachis hypogaea L.). Nine treatments of weed control were evaluated in randomized block design and replicated four times. Besides weed free treatment, an application of pendimethalin @ 1000 g/ha PE + imazethapyr 75 g/ha PoE at 15-20 DAS and H. W. + IC at 20 and 40 DAS recorded higher mature pods per plant, shelling percent, pod yield, haulm yield, gross return, net return, BCR and weed control efficiency as well as lower weed index and dry weight of weeds. No adverse effect of herbicides was observed on plant population, grain and straw yield of succeeding wheat crop.

Influence of different organic nutrient sources on productivity and profitability of groundnut (Arachis hypogaea L.) in southern Rajasthan, India

2016 ◽  
Vol 50 (6) ◽  
Author(s):  
R. K. Sharma ◽  
S. K. Sharma ◽  
N. L. Dangi
Keyword(s):  
Arachis Hypogaea ◽  
Rock Phosphate ◽  
Block Design ◽  
Farmyard Manure ◽  
Poultry Manure ◽  
Research Station ◽  
Nutrient Sources ◽  
Pod Yield ◽  
Organic Nutrient ◽  
Arachis Hypogaea L

A field experiment was conducted during kharif 2013-14 at Dryland Farming Research Station, Bhilwara (Rajasthan) to study the effect of organic nutrient sources on productivity and profitability of groundnut (Arachis hypogaea L.). The experiment consisted of eight treatments having three organic sources viz., farmyard manure, vermicompost and poultry manure with or without rock phosphate and spray of vermiwsh was laid out in a randomized block design and replicated thrice. The organic sources comprising combined application of vermicompost @ 1 t ha-1 and 0.35 t Rock phosphate produced significantly higher number of pods per plant (18.33), number nodules per plant (13.11), pod weight per plant (13.43 g), test weight (36.39 g) and shelling percentage (54.06), pod yield (1377 kg ha-1), halum yield (2944 kg ha-1) of groundnut over the no manure application and superior over rest the treatments. The pod yield increased due to application of vermicompost @ 1 t ha-1 + 0.35 t Rock phosphate to the tune of 61.62 per cent over control. Application of vermicompost @ 1 t ha-1 + 0.35 t Rock phosphate gave highest net return (Rs. 41137 ha-1) and B: C ratio (3.19).

scholarly journals Eclipta (Eclipta prostrata L.) Control in Peanuts (Arachis hypogaea L.)1

1995 ◽  
Vol 22 (2) ◽  
pp. 114-120 ◽  
Author(s):  
J. V. Altom ◽  
R. B. Westerman ◽  
D. S. Murray
Keyword(s):  
Arachis Hypogaea ◽  
Field Experiments ◽  
Butanoic Acid ◽  
Late Season ◽  
Nitrobenzoic Acid ◽  
Pod Yield ◽  
Eclipta Prostrata ◽  
Arachis Hypogaea L ◽  
Herbicide Treatments ◽  
Sequential Treatments

Abstract Field experiments were conducted from 1991 to 1993 to evaluate eclipta, Eclipta prostrata L., control and peanut, Arachis hypogaea L., response to herbicide treatments. Fomesafen {5-[2-chloro-4-(trifluoro-methyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamide} applied at cracking was the only preemergence-applied herbicide which provided season-long control (>84%). Herbicides applied postemergence were more effective when the eclipta was less than 5 cm in height. The most consistent early postemergence treatments were bromoxynil (3,5-dibromo-4-hydroxybenzonitrile), bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazm-4(3H)-one 2,2-dioxide], and bentazon + acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} + 2,4-DB [4-(2,4-dichloro-phenoxy)butanoic acid]. Various other early postemergence followed by late postemergence sequential treatments also were equally effective. Minor peanut injury was observed at the early season rating from several herbicides; however, all injury had disappeared by the late season rating. Eclipta control did not consistently improve peanut pod yield.

Response of Groundnut (Arachis hypogaea L.) to Different Levels and Time of Phosphogypsum Nutrition

2021 ◽  
Author(s):  
Sheri Vaishnav ◽  
M.R. Ananda ◽  
H.M. Atheekur Rehaman ◽  
C. Seenappa ◽  
H.C. Prakasha
Keyword(s):  
Arachis Hypogaea ◽  
Block Design ◽  
Additional Source ◽  
Yield Attributes ◽  
Oilseed Crops ◽  
Sulphur Nutrition ◽  
Arachis Hypogaea L ◽  
Field Unit ◽  
Different Levels ◽  
Sulphur Uptake

Background: Groundnut is one of the most important oilseed crops of India. Improving productivity of groundnut to meet the domestic vegetable oil demand through balanced fertilization is the prime challenge lying before the agronomists in the country. With the aim of evaluating phosphogypsum as a source of sulphur nutrition in groundnut, a field experiment entitled “Response of groundnut (Arachis hypogaea L.) to different levels and time of phosphogypsum nutrition” was conducted at Agronomy field unit, University of Agricultural Sciences Bangalore, during kharif-2019. Methods: Experiment was laid out in randomised complete block design (RCBD) with eleven treatments, of which eight have different combinations of phosphogypsum applied as basal and in split (30 DAS) and one with gypsum as basal alone. Whereas, the remaining two treatments, without any additional source of sulphur are included for comparison. Result: Among eleven treatments, application of phosphogypsum @ 125 kg S eq ha-1 in split recorded highest yield attributes, pod yield (2063 kg ha-1), kernel yield (1418 kg ha-1) and sulphur uptake (11.33 kg ha-1). Which were on par with 100 kg S eq ha-1 in split (2014, 1380 and 10.39 kg ha-1, respectively). All other treatments recorded lower values with lowest in treatments without any additional sulphur source.

scholarly journals Response of Groundnut (Arachis hypogaea L.) to Lime and Different Levels of Sulphur

2020 ◽  
Vol 11 (6) ◽  
pp. 585-589
Author(s):  
Imnatemjen Aier ◽  
◽  
D. Nongmaithem ◽  
Keyword(s):  
Arachis Hypogaea ◽  
Growth And Yield ◽  
Yield Attributes ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Stover Yield ◽  
Main Plot ◽  
Different Levels ◽  
Kernel Yield ◽  
Plot Design

A field experiment was conducted in the Experimental Research Farm of School of Agricultural Sciences and Rural Development (SASRD), Nagaland University during the kharif season 2018. Groundnut variety ICGS-76 was sown @ 70 kg ha-1 for 60×20 cm2 spacing. The experiment was laid in split plot design with three replications. The main plot treatments consisted of two lime levels: lime @ 0 t ha-1 and lime @ 3 t ha-1 while the sub- plot treatments consisted of five sulphur levels: sulphur @ (0 kg ha-1, 10 kg ha-1, 20 kg ha-1, 30 kg ha-1 and 40 kg ha-1 along with recommended dose of fertilizer at 20:60:40 kg N, P2O5 and K2O ha-1 respectively in the form of diammonium phosphate and murate of potash. The results showed that application of lime @ 3 t ha-1 gave higher growth and yield attributes compared to no lime and also application of sulphur @ 40 kg ha-1 gave higher growth and yield attributes compared to lower doses of sulphur though there was only slight increase in the attributes between each successive doses of sulphur. Overall application of lime and sulphur increased all the yield attributes of groundnut, where the highest number of pods plant-1, seeds pod-1, 100 kernels weight, pod yield, kernel yield and stover yield were recorded when treatment was done with lime @ 3 t ha1 and sulphur @ 40 kg ha-1.

scholarly journals Screening for Drought Tolerance through Root Morphology and Yield Characters of Groundnut (Arachis hypogaea L.) Genotypes

2021 ◽  
pp. 95-105
Author(s):  
K. Manoj Kumar ◽  
S. Vincent ◽  
A. Mothilal ◽  
M. Raveendran ◽  
R. Anandham ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Root System ◽  
Arachis Hypogaea ◽  
Block Design ◽  
Root Trait ◽  
Abiotic Factor ◽  
Worldwide Production ◽  
Arachis Hypogaea L ◽  
Drought Resistant ◽  
Yield Character

Drought affects the rainfed groundnut (Arachis hypogaea L.)  at different phases of development and it is the serious threats on groundnut productivity causing losses than any other abiotic factor under rainfed agriculture. In the world's semiarid regions, groundnut accounts for 90% of worldwide production. Drought mainly affects the pace and pattern of nutrient and water intake from the soil, affecting the architecture of the groundnut root system. Plant selections with desirable root trait have been a major focus in developing drought resistant Groundnut cultivars. In 2019, 60 groundnut genotypes were cultivated in root block design with two different soil water treatments, as well as in the field during the year under same circumstances. The purpose of this study was to see how different groundnut cultivars fared in terms of yield, yield contributing features, root characters, and their relationships with drought tolerance. Drought resistant genotypes had thicker roots, larger roots, and a deeper root system than susceptible genotypes. Recent series in groundnut genotypes of 60 numbers were sown during kharif 2019 (july-september) under rainfed condition (It includes life irrigation and rainfall received during cropping season). Groundnut genotypes were semi spreading with the duration of 110-120 days. Observation on root morphological character viz., roots length, root volume after 20 days of stress imposition of the crop and yield parameters were observed at the harvest. Among the 60 genotypes, 20 genotypes (VG 17008, VG 17046, VG 18005, VG 18102, VG 18077, VG 19572, VG 19709, VG 18111, VG19561, VG19576, VG 19620, VG 19681, VG 19688 etc.,) similarly, yield character were observed for 60 genotypes and all the genotypes given above recorded higher value in Total number of pods per plant, Number of double seeded pods per plant, Pod yield per plant, Harvest index and Total dry matter production. The methods used in this study identified correlation between yield character and root characters. Groundnut genotypes by assessing yield metrics and their relationship with root trait. These findings lay the groundwork for future study aimed at deciphering the molecular pathways underpinning Groundnut drought resistance.

Partial resistance of Southern Runner, Arachis hypogaea, to stem rot caused by Sclerotium rolfsii1

1990 ◽  
Vol 17 (2) ◽  
pp. 65-67 ◽  
Author(s):  
T. B. Brenneman ◽  
W. D. Branch ◽  
A. S. Csinos
Keyword(s):  
Arachis Hypogaea ◽  
Disease Incidence ◽  
Sclerotium Rolfsii ◽  
Field Tests ◽  
Stem Rot ◽  
Pod Yield ◽  
Industry Standard ◽  
Arachis Hypogaea L ◽  
The Mean ◽  
Disease Loci

Abstract The susceptibility of 16 peanut (Arachis hypogaea L.) genotypes (eight Virginia and eight runner types) to southern stem rot (Sclerotium rolfsii Sacc.) was evaluated in field tests over three years. Mean disease incidence for all cultivars was 10.0, 15.4 and 16.4 disease loci per 12.2 m row and average yields were 3488, 2826 and 3569 kg/ha in 1986, 1987 and 1988, respectively. Disease incidence averaged 14.3 disease loci per 12.2 m of row for both market types. The mean yield for the eight Virginia types was 3287 kg/ha versus 3214 for the eight runner types. Culitvars within market types varied significantly in disease incidence and pod yield. Of the Virginia types, NC 6 and Florigiant were the most susceptible with NC 9, VA 81B and Early Bunch being the most resistant. Incidence of stem rot in runner cultivars was high except for Southern Runner and Langley which had about 50% less disease than the most susceptible entries. There was a highly significant correlation (P≤0.01) between yields and disease incidence all three years. Overall, Southern Runner had the lowest disease incidence and highest pod yield of any cultivar. Compared to Florunner, the current industry standard for runner types, Southern Runner had about 50% less disease and yields were 1346 kg/ha higher.

scholarly journals Identification of quantitative trait loci for kernel traits in a wheat cultivar Chuannong16

BMC Genetics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Jian Ma ◽  
Han Zhang ◽  
Shuiqin Li ◽  
Yaya Zou ◽  
Ting Li ◽  
...  
Keyword(s):  
Genetic Map ◽  
Quantitative Trait ◽  
Agronomic Traits ◽  
Snp Array ◽  
Kernel Weight ◽  
Phenotypic Variance ◽  
Kernel Length ◽  
Kasp Marker ◽  
Kernel Traits ◽  
Major Qtl

Abstract Background Kernel length (KL), kernel width (KW) and thousand-kernel weight (TKW) are key agronomic traits in wheat breeding. Chuannong16 (‘CN16’) is a commercial cultivar with significantly longer kernels than the line ‘20828’. To identify and characterize potential alleles from CN16 controlling KL, the previously developed recombinant inbred line (RIL) population derived from the cross ‘20828’ × ‘CN16’ and the genetic map constructed by the Wheat55K SNP array and SSR markers were used to perform quantitative trait locus/loci (QTL) analyses for kernel traits. Results A total of 11 putative QTL associated with kernel traits were identified and they were located on chromosomes 1A (2 QTL), 2B (2 QTL), 2D (3 QTL), 3D, 4A, 6A, and 7A, respectively. Among them, three major QTL, QKL.sicau-2D, QKW.sicau-2D and QTKW.sicau-2D, controlling KL, KW and TKW, respectively, were detected in three different environments. Respectively, they explained 10.88–18.85%, 17.21–21.49% and 10.01–23.20% of the phenotypic variance. Further, they were genetically mapped in the same interval on chromosome 2DS. A previously developed kompetitive allele-specific PCR (KASP) marker KASP-AX-94721936 was integrated in the genetic map and QTL re-mapping finally located the three major QTL in a 1- cM region flanked by AX-111096297 and KASP-AX-94721936. Another two co-located QTL intervals for KL and TKW were also identified. A few predicted genes involved in regulation of kernel growth and development were identified in the intervals of these identified QTL. Significant relationships between kernel traits and spikelet number per spike and anthesis date were detected and discussed. Conclusions Three major and stably expressed QTL associated with KL, KW, and TKW were identified. A KASP marker tightly linked to these three major QTL was integrated. These findings provide information for subsequent fine mapping and cloning the three co-localized major QTL for kernel traits.

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