scholarly journals Effect of Planting Dates on Incidence of Legume Pod Borer (Maruca vitrata Geyer) on Cowpea (Vigna unguiculata (L.) Walp.) Varieties in Samaru Kataf, Kaduna State

2020 ◽  
Vol 36 (1) ◽  
pp. 81-97
Author(s):  
N Musa
Keyword(s):  
Grain Yield ◽  
Vigna Unguiculata ◽  
Block Design ◽  
Maruca Vitrata ◽  
Planting Dates ◽  
Local Variety ◽  
Cropping Season ◽  
Pod Borer ◽  
Legume Pod Borer ◽  
Randomized Complete Block Design

Field experiment was carried out during 2018 cropping season to evaluate the effect of planting dates on incidence of legume pod borer Maruca vitrata on cowpea (Vigna unguiculata) varieties. The treatments consist of five varieties of cowpea (local variety, SAMPEA 6, SAMPEA 7, SAMPEA 8 and SAMPEA 10) which were sown at three different dates, 7th (early), 24th (Mid) August and 7th (early) September, 2018. The experiment was laid out in a Randomized Complete Block Design (RCBD) replicated three times. The number of M. vitrata larva on flowers, damaged pods and weight of grains were determined. The result showed that first sowing nearly August had less infestation by M. vitrata than those in mid August and differs significantly (P≤0.05) from those sown in September. All varieties sown in early and mid August had less M. vitrata infestation and produced higher grain yield of 533.33kg and 395.06 kg on SAMPEA 7 and SAMPEA 8, respectively compared to those sown in early September: 256.79 and 197.53 on SAMPEA 7 and SAMPEA 10, respectively. Local variety and SAMPEA 6 were the varieties with higher mean number of M. vitrata, higher pod damage and low grain yield. Therefore, SAMPEA 7 can be utilized in breeding program for the management of pod borer.

scholarly journals Effect of Native Soap on Insect Pests and Grain Yield of Cowpea (Vigna unguiculata (L) Walp) in Asaba and Abraka during the Late Cropping Season in Delta State, Nigeria

2012 ◽  
Vol 1 (2) ◽  
pp. 275 ◽  
Author(s):  
E. O. Egho ◽  
E. C. Enujeke
Keyword(s):  
Grain Yield ◽  
Insect Pests ◽  
Block Design ◽  
Maruca Vitrata ◽  
Flower Bud ◽  
Megalurothrips Sjostedti ◽  
Ecological Zones ◽  
Cropping Season ◽  
Pod Borer ◽  
Legume Pod Borer

<p>Studies were conducted to test the effectiveness of native soap against cowpea insect pests during the late cowpea cropping season in two agro-ecological zones-Asaba and Abraka, Delta State. Four major insect pests, namely the cowpea aphid, <em>Aphis craccivora</em> Koch, the legume flower bud thrips, <em>Megalurothrips sjostedti </em>Tryb, the legume pod borer, <em>Maruca vitrata </em>Fab and pod sucking bugs were studied. The experiment was made up of five treatments-1, 2 and 3 percent concentrations of native soap, cypermethrin (as conventional chemical and check) and a control. Each treatment was replicated three times. The experiment was arranged into a randomised complete block design (RCBD). The results showed that all the major insect pests occurred in the study areas but were more at Asaba compared to Abraka. Native soap was effective against <em>A. craccivora </em>and flower bud thrips population at Asaba. <em>Maruca vitrata </em>was not affected by soap application. Grain yield was high at Abraka and significantly (P&lt;0.05) higher than Asaba. The use of native soap as non-conventional insecticide in cowpea insect pests management appears promising, more so as it is not expensive and safe to handle. Farmers may prefer it to synthetic chemical pesticides with their associated dangers.</p>

scholarly journals Effects of planting dates on the growth and grain yield of two indigenous varieties of pearl millet (Pennisetum glaucum (L.) R.Br.) in a forest-savanna transition zone of Edo State, Nigeria

2019 ◽  
Vol 114 (2) ◽  
pp. 169
Author(s):  
Sunday Ebonka NWAJEI ◽  
Anthony Uhunomwan OMOREGIE ◽  
Felix Omonkeke OGEDEGBE
Keyword(s):  
Grain Yield ◽  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Block Design ◽  
Planting Dates ◽  
Reproductive Structures ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
Edo State ◽  
June July

<p>Effects of planting dates on the growth and grain yield of two indigenous varieties of pearl millet was carried out at the Teaching and Research Farm, Ambrose Alli University, Ekpoma. The experiment was a 2 × 5 factorial scheme fitted into a randomized complete block design with the two varieties of pearl millet (‘Gero Bida’ and ‘Gero Badeggi’) and five planting dates (April, May, June, July and August) replicated three times. The results obtained showed that delays in planting date significantly reduced growth in pearl millet examined. Similar pattern was observed on days to 50 % flowering and grain maturity. Improved growth with early sowing could have allowed increased availability of assimilates that later supported reproductive growth. These assimilates were remobilized under unfavourable climatic condition in the late cropping season to the reproductive structures. ‘Gero Badeggi’ sown in April, had significantly, the highest growth in the measured characters than ‘Gero Bida’ sown in August and other dates. ‘Gero Badeggi’ planted in May had the highest total grain yield (9.33 t ha<sup>-1</sup>) while ‘Gero Bida’ planted in July had the smallest (4.27 t ha<sup>-1</sup>). Therefore, ‘Gero Baddegi’ planted in May is a better variety for pearl millet grain production in Ekpoma.</p>

scholarly journals Screening of yard long bean genotypes for resistance to legume pod borer, Maruca vitrata F.

2018 ◽  
Vol 16 (3) ◽  
pp. 424-428 ◽  
Author(s):  
Robiah Noor Ahmed ◽  
Md. Azizul Haque ◽  
Kazi Shahanara Ahmed ◽  
Mohammad Mahir Uddin ◽  
Mohammed Abul Monjur Khan
Keyword(s):  
Chemical Analysis ◽  
Block Design ◽  
Research Work ◽  
Maruca Vitrata ◽  
Central Laboratory ◽  
Pod Borer ◽  
Legume Pod Borer ◽  
Randomized Complete Block Design ◽  
Moderately Resistant ◽  
Different Levels

The research work on the evaluation of yard long bean genotypes for resistance to legume pod borer, Maruca vitrata F. was carried out in two consecutive seasons viz., kharif 2015 and rabi 2015-16 in randomized complete block design (RCBD) in the field of the Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh and chemical analysis of sugar, protein and phenol of yard long bean were carried out at Bangladesh Institute of Nuclear Agriculture (BINA), Professor Mohammad Hossain Central Laboratory and laboratory of the Department of Biochemistry and Molecularbiology, Bangladesh Agricultural University (BAU), Mymensingh. Nine genotypes of yard long bean were evaluated and reacted distinctly to M. vitrata with significantly different levels of infestation to flowers, pods and yield. The genotype Long Red Mollika was categorized as moderately resistant to legume pod borer in both kharif and rabi seasons. Genotype YL 305 was found susceptible in both the seasons. The plant attributes, both vegetative and reproductive, of yard long bean did not show any significant correlation in favour of resistance to M. vitrata. Yard long bean genotypes also did not show resistant reaction to M. vitrata in respect of sugar and phenol but particularly protein showed antibiosis against M. vitrata. J. Bangladesh Agril. Univ. 16(3): 424–428, December 2018

scholarly journals Bioefficacy and Economics of Certain Novel Generation Insecticides against Spotted Pod Borer, Maruca vitrata (Geyer) in Greengram (Vigna radiata L.)

2021 ◽  
Author(s):  
Elluru Sireesha ◽  
Gaje Singh ◽  
Rajendra Singh ◽  
Bhupendra Singh
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Cost Benefit ◽  
Maruca Vitrata ◽  
Emamectin Benzoate ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Cost Benefit Ratio ◽  
And Control ◽  
Crop Research

Background: Spotted pod borer, Maruca vitrata, cause greater damage by attacking flowers, pods in greengram plants. This study investigates the efficacy and economics of certain novel insecticides when sprayed against spotted pod borer in green gram. Methods: The experiment was conducted at Crop Research Center, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, during kharif 2019 in randomized block design with eight treatments (Emamectin benzoate, Spinosad, Chlorantroniliprole, Indoxacarb, Novaluron, Profenophos, Triazophos and control) and three replications on variety SML668. Observations were taken at three, seven and eleven days after the first and second spray and the data thus recorded were analyzed. Result: The insecticide Chlorantraniliprole 20SC @ 0.025 ml/ lit has shown the highest efficacy with low per cent pod damage (7.33) and maximum grain yield (8.61q/ ha) against M. vitrata from the first day of application followed by Spinosad 45SC @ 0.25 ml/ lit with pod damage of 10.67 per cent and grain yield of 5.08 q/ ha. The highest cost-benefit ratio was obtained in Emamectin benzoate treatment (1:8.54), followed by chlorantraniliprole (1: 6.76).

scholarly journals EFFICACY OF COMMERCIAL INSECTICIDE FOR THE MANAGEMENT OF COWPEA POD BORER (MARUCA VITRATA) ON COWPEA (VIGNA UNGUICULATA (L.) WALP) UNDER FIELD CONDITION IN CHITWAN, NEPAL

2021 ◽  
Vol 2 (2) ◽  
pp. 92-95
Author(s):  
Chudamani Pant ◽  
Rajendra Regmi ◽  
Sagar Bhusal ◽  
Shrawan Yadav ◽  
Sapana Tiwari ◽  
...  
Keyword(s):  
Vigna Unguiculata ◽  
Block Design ◽  
Control Plot ◽  
Chemical Insecticide ◽  
Pod Borer ◽  
Larval Count ◽  
Randomized Complete Block Design ◽  
Pea Pod ◽  
Fruit Damage ◽  
Benefit Cost

A field experiment was conducted to evaluate the efficacy of commercially available insecticides for management of cowpea pod borer to know about the effective and safe chemical insecticide to manage the cow pea pod borer. A total of five treatments; (i. Neemix (2ml/L), ii. Flubendamide 48% SC (2ml/L), iii. Spinosad 45% SC (3ml/L), iv. Chlorantraniliprole 18.5% SC(2ml/L) and v. control) were tested using Randomized Complete Block Design (RCBD) with four replications for each treatment. The results showed that the Chlorantraniliprole 18.5% SC was most effective to reduce cowpea pod borer larva followed by Flubendamide 48% SC and Spinosad 45% SC. The damage of pod by cowpea pod borer was recorded the highest control plot (20.53%) whereas lowest fruit damage was recorded Chlorantraniliprole (5.18%) followed by Flubendamide (5.44%). Among the treatments, the highest yield was obtained with Chlorantraniliprole (11.22mt/ha) followed by Flubendamide (9.21mt/ha) and Spinosad (8.27/ha). Whereas the lowest yield was obtained with control plot (6.59mt/ha) followed by Neemix (7.09mt/ha) treated plots. The benefit-cost (B:C) ratio for all the treatments revealed that chlorantraniliprole @ 0.2ml/L was highly economical with a B:C of 1:62.14 followed by spinosad with 1: 21.91. The chlorantraniliprole resulted the lowest larval count, lowest fruit damage, highest yield and highest marginal B: C thus could be the best insecticide to manage cowpea pod borer.

scholarly journals Effect of Planting Dates on the Growth, Yield and Quality of Three Cultivars of Sorghum (Sorghum bicolor L. Moench)

2021 ◽  
Vol 904 (1) ◽  
pp. 012019
Author(s):  
H A Ajaj ◽  
Y A Mohammed ◽  
A AM Alrubaya ◽  
A MS Addaheri
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Block Design ◽  
Growth Yield ◽  
Spring Season ◽  
Planting Dates ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Sorghum Bicolor L

Abstract A field study was carried out during the spring season of 2017 in the fields of a farmer in the district of Habbaniyah, which is 70 km west of Baghdad, to study the effect of three planting dates (15 March, 1 April and 15 April) on the growth, yield and quality of three cultivars of sorghum (Babel, Warka and Rabeh). The implementation of the experiment was according to a randomized complete block design (R.C.B.D) with split-plot arrangement with three replications. The results of the experiment indicated that the cultivar Rabeh was superior in most of the studied traits such as leaf area (3968 cm2), number of grains per head (2659.00 grains head-1), weight of grains per head (63.41 g) and grain yield (7.44 ton ha-1), while the Babel variety was superior in the percentage of protein (12.21%). As for planting dates, the date of April 1 was superior in most of the studied traits, such as leaf area (3635.33 cm2), number of grains per head (2670.33 grains head-1), weight of grains per head (62.12 g), grain yield (7.55 ton ha-1) and the percentage of protein (11.49%).

scholarly journals PENAMPILAN KETAHANAN ENAM VARIETAS KACANG TANAH TERHADAP PENGGEREK POLONG (ETIELLA ZINCKENELLA TRIETSCHKE) DI DATARAN TINGGI DAN DATARAN RENDAH BENGKULU

2010 ◽  
Vol 10 (1) ◽  
pp. 13-19
Author(s):  
Dwinardi Apriyanto ◽  
Burhannudin Toha ◽  
Priyatiningsih Priyatiningsih ◽  
D. Suryati
Keyword(s):  
Block Design ◽  
Larval Density ◽  
Field Trials ◽  
The Other ◽  
Local Variety ◽  
Pod Yield ◽  
Pod Borer ◽  
Randomized Complete Block Design ◽  
Harvest Data ◽  
Resistance Performance

Resistance performance of six groundnut varieties to Soybean Pod Borer (Etiella zinckenella Treitschke) at high and low elevation in Bengkulu.  Soybean pod borer (SPB), Etiella zinckenella Treitschke, often caused serious pod damage and reduced pod yield in several groundnut central in Bengkulu.  Field trials were conducted in two locations, Air Dingin (Rejang Lebong, 900 m asl.) and Kuro Tidur (Bengkulu Utara, 200 m asl.) to evaluate resistance performance of groundnut varieties to SPB. Six varieties,  Jerapah, Kacil, Bison, Pather, Singa dan Singa, were grown in Air Dingin.  Five varieties ( as above but minus Sima) were grown in Kuro Tidur. Susceptible local variety was used as control. Varieties were arranged in plots in randomized complete block design (RCBD) replicated three times,  in 3 m x 5 m plots and 20 cm x 30 cm planting space. Dolomite was applied at doses of 0.333 ton ha-1 in Air Dingin and 3 ton ha-1 in Kuro Tidur.  Plants were fertilized with N (Urea) - P (TSP) - K (KCl) at the nationally recommended doses (70 - 125 - 70 kg ha-1).  Damaged pods and larval density were observed three times at 63, 77 and 93 day after sowing (SAW).  Undamaged pods was weighted at harvest.  Data were analyzed with analysis of variance and LSD to separate varietal means.  The results revealed that the numbers and percetages of damaged pods incresed with plant age.  Four groundnut varieties (Kancil, Panther, Singa and Sima) suffered significantly less pod damage than local variety and the other two (Jerapah and Bison), and therefore they are more resistance than the last three. Regardless of varieties, pod damage was significantly higher in Kuro Tidur than that in Air Dingin.  The weight of undamage pods of  resistance varieties was significantly higher than that of local, but was not significantly difference from that of Bison and Jerapah, in Air Dingin. In contrast, there was no significant different undamage pod weight between all varieties in Kuro Tidur.

Effect of Sowing Dates on Growth and Grain Yield of Maize Inbred Lines

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
KAMAL BHUSAL ◽  
ROSHAN SUBEDI ◽  
JIBAN SHRESTHA
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Inbred Lines ◽  
Growth And Yield ◽  
Planting Dates ◽  
Maize Inbred Lines ◽  
Yield Production ◽  
Sowing Dates ◽  
Randomized Complete Block Design

This study was carried out at National Maize Research Program, Rampur, Chitwan, Nepal to evaluate the effect of sowing dates on growth and grain yield of maize inbred lines. Seven maize inbred lines namely NML-2, RML-17, RML-32, RML-4, RML-86, RML-95 and RML-96 were planted on three different dates i.e. September 02, September 12, September 22, 2015 during winter using randomized complete block design with two replications. The results of this study showed that the growth and yield traits were significantly affected by various planting dates. The inbred line RML-17 produced the highest grain yield where as NML-2 gave the lowest yield during winter season. The highest yield was obtained when inbred lines were planted on September 12 and the lowest yield on September 2. The planting from September 2 to September 12 increased the grain yield. The delay in planting i.e. September 22 decreased grain yield. Therefore September 12 planting was suitable for inbred lines to maximize grain yield production.

scholarly journals Evaluation of early maize genotypes for grain yield and agromorphological traits

2018 ◽  
Vol 3 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Bishal Dhakal ◽  
Keshav Prasad Shrestha ◽  
Bishnu Prasad Joshi ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Morphological Traits ◽  
Agricultural Research ◽  
Block Design ◽  
Research Field ◽  
Research Station ◽  
Local Variety ◽  
Selection Strategies ◽  
Maize Genotypes ◽  
Randomized Complete Block Design

The purpose of this study was to assess the variation on agro-morphological traits and grain yield. A set of 14 early maize genotypes were studied at research field of Regional Agricultural Research Station (RARS), Doti, Nepal in summer seasons of 2015 and 2016. The experiment was carried out in Randomized Complete Block Design (RCBD) with three replications in each year. The variation among genotypes was observed for grain yield and flowering. The genotype SO3TEY-PO-BM produced the highest grain yield (4.33 t/ha) in 2015 whereas Rajahar Local Variety produced the highest grain yield (2.52 t/ha) in 2016. The combined analysis over years showed that Farmer’s variety was found earlier in tasseling (36 days) and silking (39 days), followed by S97TEYGHAYB(3) in tasseling (45 days) and by S97TEYGHAYB(3) and Arun-4 in silking (48 days). EEYC1 produced the highest grain yield (3.17 t/ha), followed by COMPOL-NIBP (3.09 t/ha), SO3TEY-PO-BM (2.90 t/ha), S97TEYGHAYB(3) (2.78 t/ha) and Rajahar Local variety (2.77 t/ha), respectively. The information on variation for the agro-morphological traits among studied early maize genotypes will be helpful to plant breeders in constructing their breeding materials and implementing selection strategies.

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