scholarly journals Effect of botanicals and biofungicide on controlling tikka disease (Cercospora sp.) of groundnut (Arachis hypogea L.)

2016 ◽  
Vol 39 (1) ◽  
Author(s):  
M. M. Hasan ◽  
I. Hossain ◽  
M. A. Kashem ◽  
M. M.A. Mondal ◽  
M. Y. Rafii ◽  
...  

The leaf spot or Tikka disease (<italic>Cercospora arachidicola</italic> and <italic>Cercosporidium personatum</italic>) of groundnut (<italic>Arachis hypogea</italic> L<italic>.</italic>) is a predominant, devastating and economically important foliar fungal disease and a major yield reducing factor of groundnut, not only in Bangladesh, but also all over the world. The yield loss was calculated in the groundnut variety Dhaka-1 due to early and late leaf spot (Tikka) by over 30-48% in Bangladesh. The efficacy of NLEFS (<italic>Azadirachta indica</italic>), DebLEFS (<italic>Polyalthia longifolia</italic>), DLEFS (<italic>Datura metel</italic>), <italic>Trichoderma</italic> based biofungicides (BBST, BBFS and BBSFS) along with a check (Bavistin) and control were evaluated in the pot and field research. Among the treatments, BBSFS, NLEFS, DLEFS and DebLEFS showed better performance in controlling leaf spot and increasing pod yield by 53.61, 51.91, 40.85 and 38.72%, respectively as compared to control in the field. In case of seedling germination, BBSFS gave 97.77% germination followed by NLEFS (88.14%), DLEFS (93.33%) and DebLEFS (95.55%). BBSFS produced higher length and weight of shoot and root and vigour index as compared to control. Maximum vigour index was observed under BBFS (1583.88). BBSFS gave higher plant height, number of leaves and minimum number of infected leaves in the pots and field as compared to control. Minimum leaf area diseased was obtained with BBSFS followed by Bavistin in the field. Biofungicide (BBST, BBFS and BBSFS), NLEFS, DLEFS and DebLEFS showed promising performance in number and weight of pods and pod yield in the pots and field. Maximum weight of pods/plant and weight of mature pods/plant was achieved with BBSFS (20.05 g and 18.55 g) followed by NLEFS (19.83 g and 18.22 g). The highest net profit was recorded with the use of BBSFS by Tk. 176768.00/ha followed by NLEFS Tk. 172275.00/ha, BBFS Tk. 168818.00/ha, while the lowest Tk. 96443.00/ha in untreated control. Maximum Benefit-Cost Ratio (BCR) 1: 2.77 was found in BBSFS followed by BBST (1: 2.65), BBFS (1: 2.64) and NLEFS (1:2.62).

2014 ◽  
Vol 12 (1) ◽  
pp. 41-49
Author(s):  
MH Hossain ◽  
I Hossain

A study was conducted to evaluate the effectiveness of three selected botanicals namely leaf extract of Neem (Azadirachta indica), Debdaru (Polyalthia longifolia) and datura (black) (Datura metel) along with Bavistin (Carbendazim) and BAU-biofungicide (Trichoderma harzianum) against leaf spot disease (tikka) of groundnut caused by Cercospora arachidicola and Cercosporidium personatum at the Field Research Farm of Bangladesh Agricultural University, Mymensingh during 2009-10. The most effective treatments were Bavistin, BAU-biofungicide (seed treatment + spray), BAU-biofungicide (spray) and leaf extract of Neem. Bavistin increased pod and dry haulm yield by 53.51 and 24-80 %, respectively. Maximum pod yield and dry haulm weight were recorded under Bavistin. BAU-biofungicide (seed treatment + spray) produced the second highest pod and dry haulm yield followed by leaf extract of Neem and BAU-biofungicide (spray). BAU-biofungicide (seed treatment + spray) and leaf extract of Neem may be recommended for controlling leaf spot disease of groundnut. DOI: http://dx.doi.org/10.3329/agric.v12i1.19579 The Agriculturists 2014; 12(1) 41-49


2018 ◽  
Vol 21 (1) ◽  
pp. 95-103
Author(s):  
MO Ali ◽  
AHMMR Talukder ◽  
L Nahar

The field experiment was conducted at Pulses Research Centre (PRC), Ishurdi, Pabna and Regional Agricultural Research Station (RARS), Jamalpur during rabi 2012-2013 to find out the effect of seed rate and walkway for green pea production as relay cropping with transplanted Aman rice. The experiment was based on six seed rates @ 50, 60, 70, 80, 90 and 100 kg ha-1 and two walking ways viz. 15 cm wide walkway at 2 m interval over the plot and control with three replications. A local cultivar of pea, named Natore was used in this trial. Results revealed that the treatment with 100 kg seed ha-1 gave the highest pod yield of 5.13 t ha-1 and 4.98 t ha-1 at Jamalpur and Ishurdi locations, respectively which was similar to 80 (S4) and 90 (S5) kg seed ha-1.. Walkway had no significant variation in yield and yield contributing characters but it produced the higher yield over the control. Using walkway, 100 kg seed ha-1 (S6) and 15 cm walkway at 2 m interval over the plot (W1) produced the highest pod yield of 5.14 t ha-1 and 4.95 t ha-1 and fodder yield of 6.70 t ha-1 and 6.13 t ha-1 at Jamalpur and Ishurdi locations, respectively. Maximum gross margin of Tk. 1,06,040 ha-1 and Tk. 1,02,401 ha-1 was contributed by combinations of using 100 kg seed ha-1 and 15 cm walking way but maximum benefit cost ratio (BCR) of 3.40 and 3.43 were obtained from S5×W1 combination at Jamalpur and Ishurdi locations, respectively. It is concluded that pea cultivar can be successfully cultivated for green pod production through the use of 90-100 kg ha-1 seed with walkway of 15 cm wide in the plot after 2 m intervals. Bangladesh Agron. J. 2018, 21(1): 95-103


Author(s):  
T. Ramesh ◽  
S. Rathika ◽  
T. Parthipan ◽  
V. Ravi

Field experiment was conducted during rice fallow season (January-March), 2011 and 2012 to study the effect of DAP application to preceding rice in last irrigation and foliar nutrition to black gram on the productivity and profitability of black gram(ADT 3) under rice fallow condition. The results indicated that application of DAP at 50 kg/ha to preceding rice in last irrigation and foliar spray of DAP (2 per cent) and KCl (1 per cent) at 30 and 45 days after sowing to black gram registered higher plant height (24.6 cm) at 20 DOS number of pods per plant (18.4), grain yield (639 kg/ha), net returns (Rs.22290/ha) and additional income (Rs. 7563/ha). Application of DAP at 50 kg/ha in last irrigation to preceding rice produced significantly higher grain yield of succeeding black gram (613 kg/ha.) over control (488 kg/ha) which was comparable with foliar application of 2 per cent DAP and 1 per cent KCl to black gram. With reference to return per rupee invested, application of DAP at 50 kg/ha to preceding rice in last irrigation registered higher benefit cost ratio of 3.56 in black gram.


Author(s):  
K. Das ◽  
S. Datta ◽  
S. Sikhdar

An experiment was conducted during the rabi season of the years 2015-16 and 2016-17 at the Instructional Farm of Uttar BangaKrishiVishwavidyalaya, Pundibari, Cooch Behar to study the performance of eight bush type frnch bean (Phaseolus vulgaris L.) varieties (Shagun, Victoria, Falguni, Falkon Improved, Arka Komal, special Jhati Beans, Nandini and Basuki) regarding growth, fresh pod yield and quality in this region with and without Rhizobium inoculation. The experiment was laid out in factorial randomized block design with three replications. In case of inoculation treatment, irrespective of varietal differences, seeds were treated with Rhizobiumphaseoli10g/kg of seed. Common fertilizer dose of 80:40:40 N:P2O5:K2Okg/ha was applied in each plot. The experimental results revealed that Rhizobium inoculation increased the yield and quality parameters viz, protein %, vitamin-A content and ascorbic acid content in the fresh pods of the frenchbean varieties. However, flowering and harvesting were recorded earlier in without Rhizobium inoculation treatment due to less accumulation of nitrogen content inside the plant bodies. Under Rhizobium inoculation Special Jhati Beans recorded the highest pod yield (23.05 tonnes/ha) followed by Victoria (22.43 tonnes/ha) and Arka Komal (21.95 tonnes/ha). Regarding without inoculation treatment ArkaKomal recorded the higher yield (20.05 tonnes/ha) followed by Special Jhhati Beans (20.01tonnes/ha) and Nandini (18.76 tonnes/ha).Considering the benefit: cost ratio, french bean varieties ‘SpecialJhhati Beans’ and ‘Victoria’ might be selected for the terai region of West Bengal with a benefit : cost ratio of 2.94 and 2.83 respectively.


2016 ◽  
Vol 13 (2) ◽  
pp. 191-196
Author(s):  
MS Islam ◽  
K Fatema ◽  
KMB Alam ◽  
MB Meah

The experiments were carried out during 2009 to 2013 on diagnosis and prescriptions for management of Cercospora leaf spot of chilli. The studies were undertaken in 250 grower’s field of five upazillas viz. Mymensingh sadar, Kushtia sadar, Kumarkhali, Chandina and Sher-e-Bangla Nagar. The highest disease incidence (38.6%) and severity (17.4%) of Cercospora leaf spot of chilli was recorded. Cercospora capsici produced leaf spot of chilli. The prescription given by Plant Disease Diagnostic Clinic (PDDC) was effective in the farmer’s field against the disease. Cercospora leaf spot of chilli is the most important diseases of spices in Bangladesh as the diseases significantly reduce the quality and yield. Prescription was Bavistin-50 DF @ 1g/l sprayed 4 times at 15 days interval for management of Cercospora leaf spot of chilli. The practices reduced the incidence by 72.82%, severity by 65.60%. The yield increased by 35.11%. Benefit cost ratio (BCR) was 3.34.J. Bangladesh Agril. Univ. 13(2): 191-196, December 2015


2017 ◽  
Vol 104 (4 - 6) ◽  
Author(s):  
Gomathi R ◽  
◽  
Kohila S ◽  
Ramachandiran K

 The effect of seaweed formulations on the growth and development, quality and yield response of sugarcane variety Co 86032 was evaluated by conducting field experiment. The results of the study indicated that the foliar application of seaweed formulations with different concentrations significantly improved the plant height, LAI, SPAD value and total dry matter production (TDMP), yield and yield components compared to control plants. Among the seaweed extract formulations tested, LBS 6 @ one ml/L recorded significantly higher plant growth parameters, yield attributes and cane yield (161 t. ha-1) compared to other treatments studied. It was found that sugarcane cane yield was increased significantly by 22.2 % over control. This treatment also recorded higher economic returns (Rs. 2,38,300. ha-1) and benefit cost ratio (2.08).


Plant Disease ◽  
2000 ◽  
Vol 84 (11) ◽  
pp. 1203-1211 ◽  
Author(s):  
F. Waliyar ◽  
Moustapha Adamou ◽  
Aoua Traoré

Foliar diseases caused by Cercospora arachidicola, Cercosporium personatum, and Puccinia arachidis are major constraints to peanut production in the world. Fungicides are among the most efficient available control methods. Field trials were conducted in 1991 and 1992 in Benin and Niger, West Africa, to evaluate the cost effectiveness of fungicide application timings and frequencies on four peanut cultivars. A combination of four timings (40, 55, 70, and 85 days after sowing) was scheduled. Early (causal organism, C. arachidicola) and late (caused by C. personatum) leaf spot were prevalent in both years, but late leaf spot was the more economically important disease as shown by high values of area under the disease progress curve. Application of fungicide reduced late leaf spot incidence and increased pod yield. Pod yield responded to an interaction of number and timing of fungicide applications. With appropriate timing two or three fungicide applications were enough to significantly increase pod yield. Properly timed fungicide sprays can result in substantial monetary gains for peanut farmers in West Africa.


2020 ◽  
Vol 1 (1) ◽  
pp. 31-39
Author(s):  
C. G. Onuwa ◽  
S. S. Mailumo ◽  
S. Y. Muhammed

This study analyzed the profitability and determinants of groundnut production in Dambatta Local Government Area of Kano state. Multi-stage sampling technique was used in collecting data from eighty (80) respondents in the study area. The data generated were analyzed using descriptive statistics, farm budgeting model and regression analysis. The results revealed that the gross margin and net farm income of the farmers were N71400/ha and N59400/ha respectively. Also, the fixed and operating ratios were estimated at 0.1 and 0.41 respectively, while the benefit- cost ratio was N1.98. The coefficient of multiple determination (R2) was 0.739, implying that about 74% of the variation in the output of groundnut was accounted for by the explanatory variable inputs in the regression model. The regression coefficients of Farm size(X1) and Credit(X6) were positive and statistically significant at (p< 0.01), labour (X2) and Agrochemical(X5) were also positive and statistically significant at (p< 0.1), while Fertilizer(X4) was also positive and statistically significant at (p<0.05). The major constraints associated with groundnut production in the study area include; inadequate capital (86%), high cost of production inputs (83%) and lack of access to agricultural credit (78%). The study recommended that if these constraints are adequately tackled the productivity and profitability of the groundnut farmers will significantly improve. Onuwa, C. G. | Department of Agricultural Extension and Management, Federal College of Forestry, Jos, Plateau state, Nigeria


Author(s):  
Jeetendra Kumar Soni ◽  
N. Asoka Raja ◽  
Vimal Kumar

A field investigation was carried out in farmer’s field at Pudhupalayam, TNAU, Coimbatore, during 2015, to improve the productivity of groundnut variety TMV 13 under drip and micro sprinkler fertigation system. The experiment was laid out in randomized block design (RBD) with three replications comprising of 11 treatments. Results indicated that maximum pod yield (3495 kg ha-1), haulm yield (6452 kg ha-1), harvest index (0.351) and shelling per cent (73.95 per cent) were obtained with drip irrigation at 100% PE with fertigation at 100% RDF as WSF (T1). The water saving achieved under drip irrigation was 40.08% and 55.06% at 100% and 75% PE, respectively, whereas, under micro-sprinkler, it was 25.10% and 43.83% at 100% and 75% PE, respectively over surface irrigation. Higher WUE of 19.28 kg/ha-mm recorded under drip irrigation at 75% PE with fertigation at 100% RDF as WSF (T2) followed by drip irrigation at 100% PE with fertigation at 100% RDF as WSF (T1: 15.88 kg/ha-mm). Highest NUE (23.30 kg kg-1 NPK ha-1) was recorded in drip irrigation at 100% PE with fertigation at 100% RDF as WSF (T1). Drip irrigation at 100% PE with fertigation at 100% RDF as WSF (T1) recorded higher gross return (Rs. 254353 ha-1) and net return (Rs.134712 ha-1). Whereas, the benefit cost ratio was highest in micro sprinkler at 100% PE with fertigation at 100% RDF as WSF (T6: 2.41). The margin benefit cost ratio (MBCR) was recorded highest under micro sprinkler at 100% PE with fertigation at 100% RDF as WSF (T6: 2.53) as compared to all other treatments.


Author(s):  
V. Sai Surya Gowthami ◽  
N. Ananda

The investigation was carried out to study the effect of zinc and iron ferti- fortification on plant height, yield and quality parameters of groundnut (Arachis hypogaea L.) genotypes. Among the groundnut genotypes, ICGV-00351 recorded significantly higher plant height and number of leaves at harvest (40.05 cm and 25.86 plant-1), nitrogen uptake by groundnut kernels, haulm and total uptake (68.69, 52.76 and 121.45 kg ha-1, respectively), gross returns, net returns and benefit cost ratio ( 122408 ha-181404 ha-1 and 2.99, respectively) as compared to other genotypes. Among micronutrients application, soil application @ 25 kg ha-1 and foliar application @ 0.5 % of ZnSO4 (S4) recorded significantly higher plant height and number of leaves at harvest (42.09 cm and 27.78 plant-1), nitrogen uptake by groundnut kernels, haulm and total uptake (76.43, 57.66 and 134.10 kg ha-1, respectively), gross returns, net returns and benefit cost ratio ( 128585 ha-1 87131 ha-1 and 3.10, respectively ) as compare to other treatments.


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