Effects of Bradyrhizobium strain and host genotype, nodule dry weight and leaf area on groundnut (Arachis hypogaea L. ssp. fastigiata) yield

1993 ◽  
Vol 154 (2) ◽  
pp. 279-288 ◽  
Author(s):  
Diman Van Rossum ◽  
Arthur Muyotcha ◽  
Henk W. Van Verseveld ◽  
Adriaan H. Stouthamer ◽  
Fred C. Boogerd
Keyword(s):  
Leaf Area ◽  
Arachis Hypogaea ◽  
Dry Weight ◽  
Host Genotype ◽  
Bradyrhizobium Strain ◽  
Arachis Hypogaea L

Quantitative Genetic Aspects of Nitrogen Fixation in Peanuts (Arachis hypogaea L.)1,2

1980 ◽  
Vol 7 (2) ◽  
pp. 101-105 ◽  
Author(s):  
T. G. Isleib ◽  
J. C. Wynne ◽  
G. H. Elkan ◽  
T. J. Schneeweis
Keyword(s):  
Nitrogen Fixation ◽  
Arachis Hypogaea ◽  
Gene Action ◽  
Nitrogenase Activity ◽  
Diallel Cross ◽  
Host Genotype ◽  
Combining Abilities ◽  
Arachis Hypogaea L ◽  
Shoot Weight ◽  
Simple Evaluation

Abstract Manipulation of the host genotype has been proposed as a method of increasing biological nitrogen fixation by rhizobia in symbiosis with the peanut (Arachis hypogaea L.). The F1 generation of a diallel cross of 10 South American cultivars was evaluated in the greenhouse in an analysis of gene action for traits related to nitrogen fixation. The parents represented five secondary centers of diversity and effects in the diallel model were partitioned into among- and within-center components. Variation of center effects was significant for several characters but was smaller in magnitude than within-center variation. Specific combining abilities were significant and accounted for more variability than general combining abilities for nodule number, nodule mass, specific nitrogenase activity, shoot weight, and total nitrogen, indicating non-additive types of gene action. Maternal effects were observed for the same characters. The parents with the highest general combining abilities (GCA's) for nitrogen fixation were both fastigiate types, while Virginia-type parents had generally low GCA's. Correlations between parental and GCA effects were nonsignificant for all traits, so simple evaluation of lines for nitrogen-fixing capacity may not identify superior parents for use in breeding programs.

scholarly journals Salinity induced deleterious effects on germination, growth, physiological and biochemical process of two varieties of groundnut (Arachis hypogaea L.)

2020 ◽  
Vol 5 (2) ◽  
pp. 144-150
Author(s):  
Sharmin Akter ◽  
Dilruba Yeasmin Jharna ◽  
Sujan Kanti Mali ◽  
Abu Sayeed
Keyword(s):  
Salt Stress ◽  
Chlorophyll Content ◽  
Arachis Hypogaea ◽  
Dry Weight ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Fresh Weight ◽  
Total Chlorophyll Content ◽  
Arachis Hypogaea L ◽  
Physiological And Biochemical

The present study was accomplished to find out the effects of salinity on germination, growth, physiological and biochemical processes of two different groundnuts (Arachis hypogaea L.), varieties viz., Dacca-1, and Zhinga groundnut. The experiments consisted of five salinity treatments viz., control (no salinity), 3, 6, 9, and 12dS/m during germination and vegetative stage of groundnut varieties. Results showed that germination percentage of both the groundnut varieties was significantly decreased with the increase of salt concentration. During the germination stage, maximum shoot and root length, shoot and root fresh weight and shoot and root dry weight of groundnut varieties were recorded from Zhinga groundnut variety at salt stress. The same result occurred during the vegetative stage of Dacca-1 variety while the Zhinga groundnut variety showed maximum parameters than Dacca-1. Fresh weight, as well as dry weight, of shoots and roots of both the groundnut varieties was also decreased with the increase of salt concentrations while leaf proline concentrations were increased among these varieties. Salinity caused significant (P<0.001) reduction in chlorophyll a, chlorophyll b, and total chlorophyll content in both the genotypes. Between two genotypes, Zhinga groundnut recorded higher chlorophyll a, chlorophyll b and total chlorophyll content than Dacca-1. From the studies, it is concluded that the groundnut genotype Zhinga was identified as the tolerant genotype to salt stress than Dacca-1. Overall results indicate that high salinity condition is not suitable for growing the groundnut.

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.

Growth and productivity of groundnut (Arachis hypogaea L.) under varying levels and sources of sulphur in semi-arid conditions of Rajasthan

2017 ◽  
Author(s):  
Nagesh Yadav ◽  
S. S. Yadav ◽  
Neelam Yadav ◽  
M. R. Yadav ◽  
Rakesh Kumar ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Dry Weight ◽  
Elemental Sulphur ◽  
Dry Matter Accumulation ◽  
College Of Agriculture ◽  
Stages Of Growth ◽  
Arid Conditions ◽  
Arachis Hypogaea L ◽  
Cent Increase ◽  
Biological Yield

A field experiment was conducted at Agronomy research farm, S.K.N. College of Agriculture, Jobner during kharif, 2015 in order to evaluate the performance of groundnut (Arachis hypogaea L.) under varying levels of sulphur and its sources. Results of experiment revealed that CGR of crop during 0 - 35 DAS registered significant increase upto application of sulphur at 45 kg/ha. However, at later stages of growth the significant increase was noted upto 60 kg S/ha only. Application of sulphur at 60 kg/ha recorded a significant increase of 6.1 per cent in RGR over 15 kg/ha during 70 DAS – at harvest stage. Likewise, application of 60 kg S/ha also significantly enhanced the number of total and effective nodules as well as fresh and dry weight of nodules/plant and produced significantly higher pod and biological yields of groundnut (1832 and 5361 kg/ha) than 45, 30 and 15 kg/ha. Application of sulphur through gypsum recorded significant increase in plant height and dry matter accumulation/m row length at all the stages of crop over SSP and elemental sulphur treatments. The maximum CGR at all the stages of crop was recorded when sulphur was applied through gypsum. Sulphur application through SSP registered 13.9, 9.8 and 21.4 per cent increase in CGR over elemental sulphur at these stages, respectively. On the other hand, SSP and gypsum increased the RGR by 7.2 and 6.3 per cent, respectively over elemental sulphur. Gypsum as a sources of sulphur fertilization recorded the highest number of 62.30 total and 55.00 effective nodules/plant and as well as fresh and dry weight of nodules (229.87 and 102.00 mg/plant) thereby increasing to the extent of 22.1, 27.6, 23.9 and 18.9 per cent over elemental sulphur. Sulphur application through gypsum produced 13.1 and 10.2 per cent higher pod and biological yield of groundnut over elemental sulphur.

Florida Beggarweed (Desmodium tortuosum) Growth and Development in Peanuts (Arachis hypogaea)

1991 ◽  
Vol 5 (1) ◽  
pp. 147-153 ◽  
Author(s):  
John Cardina ◽  
Barry J. Brecke
Keyword(s):  
Leaf Area ◽  
Arachis Hypogaea ◽  
Growth And Development ◽  
Light Attenuation ◽  
Dry Weight ◽  
Temporal Changes ◽  
Canopy Area ◽  
Area Percent

Temporal changes in factors that contribute to the competitiveness of Florida beggarweed in peanuts were studied in 1986 and 1987. Florida beggarweed leaves were unifoliolate to the ninth node and trifoliolate thereafter. Peanuts grew taller than Florida beggarweed until the R-3 stage of peanuts, after which Florida beggarweed height increased logarithmically. Florida beggarweed branching was suppressed by the peanut canopy until the weed overtopped the peanuts. Florida beggarweed dry weight was reduced 80% by peanuts compared with Florida beggarweed grown alone. Peanuts reduced Florida beggarweed leaf area and canopy area. Percent light attenuation as a function of Florida beggarweed canopy area was described by the equation Y = lnX/25.5. Peanut yields in 60 cm of row on either side of a single Florida beggarweed plant were reduced 19%.

scholarly journals Physicochemical properties of new peanut (Arachis hypogaea L.) varieties

OCL ◽  
2019 ◽  
Vol 26 ◽  
pp. 19 ◽  
Author(s):  
Hamdy A. Zahran ◽  
Hesham Z. Tawfeuk
Keyword(s):  
Fatty Acids ◽  
Physicochemical Properties ◽  
Arachis Hypogaea ◽  
Oil Content ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Dry Weight ◽  
Arachis Hypogaea L ◽  
Oil Characteristics ◽  
First Time

Peanuts (Arachis hypogaea L.) are one of the major oilseed crops of the world and are an important source of protein in many countries. In this study, some nutrients and characteristics of the seeds’ oil extracted from four peanut (Arachis hypogaea L.) varieties: Line 27r (Israel), Line 9 (Malawi), Line 4 (Brazil) and Line 18 (Israel) cultivated, for first time, in Upper Egypt were subjected to the comparative assessment with control NC variety (USA). Peanut seeds are a rich source of oil content (50.45 to 52.12 g 100 g−1 dry weight “DW”). The physicochemical properties of extracted oil were investigated in this study. The obtained data showed that the ratios of saturated fatty acids ranged from 14.24 to 17.23%, and the amounts of unsaturated fatty acids ranged from 82.77 to 85.76%. Significant variations (p ≤ 0.05) of oil content, saponification value, oleic/linoleic (O/L), and oil characteristics were found. Line 9 was found to be high in oil content, while Line 27r was said to have a high O/L ratio (3.22%) and proportion of unsaturated fatty acids (85.76%).

scholarly journals Effect of Ethrel Seed Treatment on Growth, Yield, and Grade of Two Virginia-Type Peanut Cultivars1

1986 ◽  
Vol 13 (2) ◽  
pp. 60-63
Author(s):  
T. A. Coffelt ◽  
R. K. Howell
Keyword(s):  
Experimental Design ◽  
Arachis Hypogaea ◽  
Seed Treatment ◽  
Growth Yield ◽  
Dry Weight ◽  
Field Conditions ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Untreated Check ◽  
Treated Seed

Abstract Two virginia-type peanut (Arachis hypogaea L.) cultivars, NC 6 and NC 7, were observed to germinate slowly under field conditions. Three seed treatments (1%, 5%, and 10%) of ethrel, cis-N-((1,1,2,2-tetrachloroethyl)thio)4-cyclo-hexene-1,2-dicarboximide, were prepared with a recommended seed treatment (45% Difolitan and 25% PCNB) and dusted on the seed. The experimental design was a 2 (cultivars) × 4 (3 ethrel treatments and an untreated check) factorial in a randomized complete block with four replications. The experiment was conducted for 2 years (1980 & 1981) at two locations (Suffolk, VA, and Beltsville, MD). Factors studied were: Stand counts (10 and 14 days after planting), plant dry weight (18 and 42 days after planting), pod yield, grams/100 seed, and percentages of meat, total sound mature kernels, extra large kernels, and fancy pods. No significant differences were found among ethrel treatments for any factor, except stand counts. Plots planted with ethrel-treated seed had significantly higher stand counts at 10 and 14 days than plots not planted with ethrel-treated seed. Significant differences occurred between locations for all factors, and between years for all factors, except stand counts at 14 days and grams/100 seed. Significant differences occurred between cultivars for all factors, except plant dry weight at 18 days, pod yield, and percentage of fancy pods. These results indicate that, while stands may be improved with ethrel-treated seed, no significant effects on yield or grade factors were found.

scholarly journals Viability, productivity, and anatomical response of groundnuts (Arachis hypogaea L.) to biofertilizer-sludge biogas applications

2021 ◽  
Vol 9 (1) ◽  
pp. 57
Author(s):  
Nur Hidayah Pangestuti ◽  
Dwi Umi Siswanti
Keyword(s):  
Arachis Hypogaea ◽  
Seed Viability ◽  
Dry Weight ◽  
Root Diameter ◽  
Seed Vigor ◽  
Optimum Concentration ◽  
Stem Diameter ◽  
Root Shoot Ratio ◽  
Arachis Hypogaea L ◽  
Seed Diameter

Groundnuts (Arachis hypogaea L.) is one of the essential food commodities in Indonesia. The use of biofertilizer has been applied to various types of crops. Meanwhile, the effect of using biofertilizer-sludge biogas on groundnuts is yet unknown. This study aims to analyze the seed viability and vigour, yield productivity, the anatomical response of groundnuts, and optimum concentration that could increase the values of each parameter. Treatments given include applying biofertilizer-sludge with 15 levels of treatment concentration compared to groundnuts without biofertilizer-sludge application as a control. The land was divided into 16 beds for each treatment consisting of control, biofertilizer from 10, 15, 30 L/ha, sludge from 12, 24, to 36 ml, and variations dosage of biofertilizer and sludge combined. The parameters observed for viability and vigour include the percentage of seed germination (GP), seed vigor index (SVI) for yield, the value of harvest index (HI), dry weight of the harvest, and root-shoot ratio (R/S). Anatomical responses were observed with stem diameter, stem’s metaxylem diameter, root diameter, root’s metaxylem diameter, and seed diameter. The biofertilizer-sludge results significantly affected HI, R/S values, stem diameter, root’s metaxylem diameter, and seed diameter. This research concluded that the application of biofertilizer-sludge did not significantly affect the seed viability and vigour and the dry weight of the harvest. The application of biofertilizer-sludge in various doses of concentration resulted in a decrease in the stem metaxylem diameter and root diameter compared to the control. A total of 10 L/ha biofertilizer + 24 ml sludge was an optimum concentration to increasing HI and R/S values. For the increasing stem, root metaxylem, and seed diameter, biofertilizer 30 L/ha + sludge 12 ml, sludge 24 ml, and biofertilizer 15 L/ha + sludge 12 ml were the optimum concentrations, respectively.

Foliar applications for amelioration of iron deficiency in peanut (Arachis hypogaea L.)

2018 ◽  
Author(s):  
Shamim Akhtar ◽  
Nazneen Bangash ◽  
Armghan Shahzad ◽  
Sammer Fatima ◽  
Muhammad Akbar ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Arachis Hypogaea ◽  
Foliar Application ◽  
Dry Weight ◽  
Shoot Length ◽  
Fe Deficiency ◽  
Morphological Parameters ◽  
Fresh Weight ◽  
Arachis Hypogaea L ◽  
Ameliorative Effect

In present study, different foliar treatments were applied on peanut to check their ameliorative effect on Fe deficiency. In hydroponics experiments, foliar applications of FeSO4, Fe-EDTA, sequestrene and ferric chloride were applied to check their effect on Fe deficiency chlorosis in two varieties of peanut already screened as BARI-2000 (Fe deficiency tolerant) and BARD-699 (Fe deficiency sensitive). Sequestrene proved to be more effective in increasing the growth of plant. Photosynthetic rate increased up to 58 and 70% in BARI-2000 and BARD-699 respectively as compared to control with foliar application of sequestrene. Similarly higher active Fe concentration was recorded in both genotypes. Up to 14 and 41% increase in active Fe concentration was observed. Various morpho physiological parameters including root length, shoot length, root fresh weight, root dry weight, shoot fresh and shoot dry weights, SPAD values, photosynthetic and transpiration rates showed that BARD-699 was more responsive to foliar applications, while foliar application of sequestrene can be used in correcting Fe deficiency in both genotypes. Active Fe was significantly correlated with different morphological parameters in both genotypes. The results of presense experiment suggested that foliar applications were helpful in correction Fe deficiency in peanut and growth can be enhanced.

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