scholarly journals Varietal Susceptibility of Improved Cowpea Vigna unguiculata (L.) (Walp.) Cultivars to Field and Storage Pests

2014 ◽  
Vol 3 (2) ◽  
pp. 69 ◽  
Author(s):  
P. K. Baidoo ◽  
M. B. Mochiah
Keyword(s):  
Vigna Unguiculata ◽  
Natural Enemies ◽  
Weight Reduction ◽  
Block Design ◽  
Control Measures ◽  
Storage Pests ◽  
Improved Varieties ◽  
Local Variety ◽  
Cowpea Varieties ◽  
And Storage

<p>Cowpea, <em>Vigna unguiculata</em> is widely cultivated in the tropics and subtropics as food for man and livestock. The crop is highly prone to pests and diseases which limit its production. Resistant cowpea varieties have become increasingly important in the management of both field and storage pests. Three improved cowpea varieties and one local variety were screened for their susceptibility to field and storage pests. The experiment was conducted in a randomized complete block design with four treatments and three replications. The different pests infesting the plants were identified and counted. Aphids and thrips were scored on a scale of 0-5, depending on the levels of infestations. Natural enemies’ numbers, leaf damage, pod damage and yield were assessed. <em>Callosobruchus maculatus</em> infestations during storage and weight reduction were determined over a six week period. Aphids and <em>M. sjostedti</em> score, <em>M. virtrata</em> and <em>Empoasca</em> sp. numbers did not differ significantly; however, significantly more pod sucking bubs attacked the local variety than the improved varieties. Natural enemies’ numbers on the various cultivars did not differ significantly. Yield was however significantly better in the improved varieties. The local variety suffered the largest weight reduction (20.91%) during storage while Nhyira suffered the least weight reduction of 4.23%. The use of improved varieties and application of pests’ control measures will increase cowpea production in Ghana.</p>

scholarly journals Characteristics of farmers’ selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso

2019 ◽  
Vol 56 (1) ◽  
pp. 94-103
Author(s):  
Haruki Ishikawa ◽  
Issa Drabo ◽  
Batieno B. Joseph ◽  
Satoru Muranaka ◽  
Christian Fatokun ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Vigna Unguiculata ◽  
Selection Criteria ◽  
Stepwise Multiple Regression ◽  
Seed Colour ◽  
Early Maturity ◽  
Improved Varieties ◽  
Cowpea Varieties ◽  
Selection Factors ◽  
North And South

SummaryComparative analysis of preferences and key criteria for selecting cowpea (Vigna unguiculata L. Walp.) varieties was conducted using the data collected from farmers’ participatory varietal selection (FPVS) activities conducted over 3 years with a total of 2401 farmers (1230 male and 1171 female) in 13 villages in Tougouri department in northern region and Tiéfora department in southern region of Burkina Faso in West Africa. Over the 3 years, farmer criteria for variety selection remained basically stable, but some variations among the regions and years were noticed. Grain yield was the most common and the most important criterion for farmers’ choice in both regions. Farmers in Tougouri (north) put more emphasis on early maturity (90%) and drought resistance (19.7%) as selection criteria than farmers in Tiéfora (south). Farmers in Tiéfora placed statistically significant importance on seed colour and plant type, while farmers in Tougouri did not, and for these selection criteria, there were only slight differences between genders in both areas. Results of stepwise multiple regression indicated that maturity and seed colour in the north, and seed size and seed colour in the south were the most important selection factors for farmers to select cowpea varieties. Improved varieties should have sufficiently good yield to be accepted, but other favoured traits may differ by target region as a reflection of local and regional market demands as well as deep-rooted cultural preferences. Understanding local and regional differences in selection criteria for cowpea varieties is necessary to improve the acceptance of newly released improved varieties. Preferences identified in the participatory activities could inform further development of cowpea breeding strategies for north and south regions of Burkina Faso.

scholarly journals Varietal Trials and Physiological Components Determining Yield Differences among Cowpea Varieties in Semiarid Zone of Nigeria

ISRN Agronomy ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Nkeki Kamai ◽  
Nuhu Adamu Gworgwor ◽  
Joshua Wasinaninda Wabekwa
Keyword(s):  
Grain Yield ◽  
Photosynthetically Active Radiation ◽  
Block Design ◽  
Shell Weight ◽  
Local Varieties ◽  
Active Radiation ◽  
Improved Varieties ◽  
Semiarid Zone ◽  
Plot Size ◽  
Cowpea Varieties

Field trials were conducted at the Teaching and Research Farm, Faculty of Agriculture, University of Maiduguri, Maiduguri (11°47.840′N; 13°12.021′E; elevation 319 m asl), in Borno State in semiarid zone of Nigeria during the 2010 and 2011 rainy seasons. The objectives of the study were to evaluate the agronomic performances of some improved cowpea varieties and to identify the physiological traits associated with high grain yield in the semiarid zone of Nigeria. The trial consisted of eight treatments, which included two local varieties, namely, Kannanado White and Borno Brown and six improved varieties, namely, IT90K-277-2, IT97K-568-18, IT89KD-288, IT97K-499-35, IT98K-131-2, and IT89KD-391. The treatments were laid out in a randomized complete block design replicated three times. The gross plot size was 5.0 m × 4.0 m (20 m2) while the net plot size was 3.6 m × 3.0 m (10.8 m2). The results showed that the improved varieties, namely, IT90K-277-2, IT97K-499-35, IT98K-131-2, and IT89KD-288, had significantly higher grain yield per hectare and matured earlier to escape drought in this agroecological zone. The local varieties also had significantly heavier grains, took more days to reach first and 50% flowering, and matured later than the improved varieties. Cowpea grain yield per hectare was highly positively correlated with harvest index, shell weight, soil moisture suction measurements, shelling percentage, and grain yield per plant and also significant negative correlation between cowpea grain yield per hectare and number of days to first and 50% flowering, 100-grain weight, number of days to physiological maturity, and pod development period. The results also indicated that fodder yield per hectare was highly positively correlated with photosynthetically active radiation thereby indicating that higher photosynthetically active radiation produced higher yield of fodder.

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 PENGARUH JENIS DAN KONSENTRASI PENSTABIL PADA PEMBUATAN MINUMAN PROBIOTIK KACANG NAGARA (Vigna unguiculata ssp. Cylindrica)

Pro Food ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 496
Author(s):  
Ova Deana Sutrisno ◽  
Lya Agustina ◽  
Hisyam Musthafa Al Hakim
Keyword(s):  
Vigna Unguiculata ◽  
Xanthan Gum ◽  
Block Design ◽  
Experimental Unit ◽  
Randomized Block Design ◽  
Factor Ii ◽  
Two Factors ◽  
Cowpea Varieties ◽  
Carboxy Methyl

ABSTRACT             The beans used in this study were cowpea varieties with the Latin name (Vigna unguiculata ssp. Cylindrica) that are widely known as a protein source where 100 grams of nagara beans contains 22.9 grams of protein. This study aimed to determine the effect of the type and stabilizer concentrations on the quality of probiotic drinks of nagara beans. The types of stabilizers used in this study were Carboxy Methyl Celulose (CMC) and Xanthan gum. This research was carried out using Randomized Block Design (RBD), which consisted of two factors, namely factor I Stabilizing concentrations: 0.5%, 0.75% and 1% stabilizing factor II: CMC and xanthan gum with 3 replications , so that there were 18 times the experimental unit. Based on the SNI (2981: 2009), the best probotic  drink was obtained in 1% CMC treatment with physical quality including liquid-viscous appearance, normal/distinctive smell, sour/distinctive taste, homogeneous consistency and gray color. As well as protein content of 1.7%, ash 0.1%, total lactic acid 0.7%, acidity level (pH) is 3.6 and total LAB 2.3 x 1011 CFU/ml.  Keywords: Nagara beans, Carboxy methyl celulose, xanthan gum, probiotic drinks   ABSTRAK   Kacang yang digunakan pada penelitian ini merupakan kacang tunggak varietas nagara dengan nama latin (Vigna unguiculata ssp. Cylindrica). Kacang-kacangan banyak dikenal sebagai sumber protein dimana per 100 gram kacang nagara mengandung protein 22,9 gram. Penelitian ini bertujuan untuk mengetahui pengaruh jenis dan konsentrasi penstabil terhadap mutu minuman probiotik kacang nagara. Jenis penstabil yang digunakan pada penelitian ini yaitu Carboxy Methyl celulose (CMC) dan Xanthan gum. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Kelompok (RAK), yang terdiri dari dua faktor, yaitu faktor I  Konsentrasi penstabil : 0,5%, 0,75% dan 1% dan faktor II jenis penstabil : CMC dan xanthan gum dengan 3 kali ulangan, sehingga didapat 18 kali satuan percobaan. Penelitian ini menghasilkan hasil terbaik yang mengacu pada SNI (2981:2009) tentang minuman probiotik yaitu pada perlakuan CMC 1% dengan mutu fisik meliputi penampakan cair-kental, bau Normal/khas, rasa asam/khas, konsistensi homogen dan warna abu-abu. Mutu kimia kadar protein 1,7%, kadar abu 0,1%, total asam laktat 0,7%, derajat keasaman (pH) 3,6 dan total BAL 2,3 x 1011 CFU/ml.   Kata Kunci: Kacang Nagara, carboxy methyl celulose, xanthan gum, minuman probiotik.

scholarly journals Cowpea (Vigna unguiculata (L.) Walp) for food security: an evaluation of end-user traits of improved varieties in Swaziland

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Therese Mwatitha Gondwe ◽  
Emmanuel Oladeji Alamu ◽  
Phumzile Mdziniso ◽  
Busie Maziya-Dixon
Keyword(s):  
Seed Weight ◽  
Protein Energy Malnutrition ◽  
Chemical Properties ◽  
Zinc Content ◽  
Improved Varieties ◽  
Local Variety ◽  
Protein Energy ◽  
Significant Difference ◽  
Cowpea Varieties ◽  
Physical And Chemical

Abstract Improved varieties have agronomic advantages over local varieties,but not much attention has been given to understand the nutritional content of the improved cowpea varieties released in Swaziland. This study investigated the physical and nutritional properties of improved cowpea varieties released in Swaziland. Five improved varieties (IT-04K-321-2, IT-97K-390-2, IT-18, IT-16, and IT-99K-494-6) and one local variety (Mtilane, as check) were analyzed for physical and chemical properties. The results showed that there were variations in seed weight as the values ranged between 12.5 and 18.5 g per 100 g seed weight. The protein content ranged from 25.38% to 27.56% with no significant difference (P < 0.05) between the improved varieties  and the local variety, ash content ranged between 3.47 and 6.84%, crude fiber was between 5.81 and 15.08%, and carbohydrate ranged from 45.64 to 57.12%.  Contents of calcium ranged from 9 to 36 mg/100 g and of iron from  2.0 to 2.4 mg/kg, with significant differences (P  < 0.05)  between the varieties with highest and the lowest values. Zinc content ranged from 7 mg/kg to 8 mg/kg, with no significant difference (P >0.05) among the varieties. The improved varieties have high seed weight, which is an essential factor that farmers consider when choosing a variety to adopt. In terms of addressing nutritional security, the crop is suitable for addressing protein-energy malnutrition and formulating blends for baby foods in Swaziland.

scholarly journals Effect of cropping system and age of plant at harvest on tuber rot and performance of elite cassava varieties in derived savannah

2017 ◽  
Vol 109 (2) ◽  
pp. 165
Author(s):  
Joy N Odedina ◽  
Sunday Ojo Adigbo ◽  
Peter Kulako ◽  
Peter Iluebbey ◽  
Thomas O Fabunmi ◽  
...  
Keyword(s):  
Tuber Yield ◽  
Block Design ◽  
Cropping System ◽  
Improved Varieties ◽  
Cropping Season ◽  
Cropping Seasons ◽  
Rot Disease ◽  
And Performance ◽  
Tuber Rot ◽  
Cassava Varieties

Devastated tuber rot disease among farmers prompted the evaluation of the elite improved varieties in the intercrop and the practice of delaying harvesting when there is glut in the market necessitated this study. Trial was carried out at the Federal University of Agriculture, Abeokuta between 2011 and 2014 to evaluate yield performance of 21 elite cassava varieties planted as sole crop verse intercropped and harvested at different age. The 2 x 21 x 3 factorial experiment was laid out in randomized complete block design and replicated three times. The tuber yield obtained from sole plot in 2011/2012 cropping season was significantly higher than intercrop whereas those of 2012/2014 cropping season were similar. Land Equivalent Ratio was above one in both cropping seasons indicating that the performance of the improved varieties in intercrop was efficient. The pooled mean tuber yield showed that TMS 30572, 92/0326, 95/0211, 01/1371, 00/0338, 01/0046, 00/0098, 01/1097, 01/0085, 98/0581 and 98/510 were among the top eight varieties. Harvesting could be delayed up to 15 months after planting to reduce tuber rot.

scholarly journals Nutrient Uptake and Agronomic Efficiencies of Leaf Litter Compost as Nitrogen Source in Vegetable Cowpea (Vigna unguiculata subsp. unguiculata)

2021 ◽  
Author(s):  
Reshma Das ◽  
Sheeba Rebecca Isaac
Keyword(s):  
Nutrient Uptake ◽  
Leaf Litter ◽  
Vigna Unguiculata ◽  
Crop Residues ◽  
Block Design ◽  
Poultry Manure ◽  
Nitrogen Sources ◽  
Nutrient Inputs ◽  
Nutrient Input ◽  
Nutrient Contents

Background: Nutritional security overrides food security and the present day agriculture focusses more on sustainable and regenerative agriculture in which use of organic inputs assumes prime significance. The search for viable alternatives to the chemical sources of nutrients demands production of the organic nutrient inputs in large quantities. Organic nutrition is expensive on account of the low nutrient contents and large quantum needed and hence unless produced in situ, turn out to be highly expensive. Organic wastes in the form of crop residues are available in plenty in agricultural fields. Tree leaf litter is another biowaste considered as menace under off farm situations. Rapid resource recycling techniques offer immense potential for the safe disposal of the litter and conversion to quality manures. In this background an experiment was conducted to assess the efficacy of litter composts as nitrogen sources in vegetable cow pea (Vigna unguiculata subsp. unguiculata) in terms of the agronomic efficiencies and nutrient uptake. Methods: The field experiment was conducted in College of Agriculture, Vellayani, Thiruvananthapuram, Kerala Agricultural University during December 2018 to March 2019 in randomized block design with three replications. The treatments included the compost of the two tree species litter prepared by composting with different decomposer organisms and additives and enriched with the biofertilizer, PGPR Mix I. Result: The results of the experiment revealed the highest vegetable yields (7.80 t ha-1) in the treatment involving mango leaf litter composted with glyricidia leaves and earthworms on par with Kerala Agricultural University package of practices recommendation for cowpea and it was 2.7 times that in absolute control. The total nutrient uptake was the highest with mango litter co-composted with poultry manure as nutrient input. Agronomy efficiency indices, in terms of nitrogen were significantly superior for the treatments including mango litter composts and hence prove a suitable nutrient input in vegetable cowpea cultivation.

scholarly journals Pratiques de production et caracteristiques physiques et chimiques du shô basi, un couscous de niebe (Vigna unguiculata) produit au Mali

2021 ◽  
Vol 21 (02) ◽  
pp. 17509-17528
Author(s):  
A Timitey ◽  
◽  
L Adinsi ◽  
YE Madodé ◽  
F Cissé ◽  
...  
Keyword(s):  
Vigna Unguiculata ◽  
Large Scale ◽  
Chemical Properties ◽  
Quality Criteria ◽  
Scale Production ◽  
Production Flow ◽  
Cowpea Seeds ◽  
Steam Cooking ◽  
End Products ◽  
Cowpea Varieties

In West Africa, cowpea is processed into several end-products among which the most consumed in Mali is a steamed granulated product known as cowpea couscous or Shô basi, in Bambara. Organoleptic properties ofShô basi are variable, probably as a consequence of the diversity of the practices of production. This study aims at determining these practices, their constraints and the physico-chemical characteristics of Shô basi as sold on Malian markets. A survey using focus group discussions, and involving eighteen (18) Shô basi production cooperatives, each gathering 8 to 32 members, was conducted in South Mali. The information collected was related to cowpea varieties used for production, flow diagrams, constraints of production, and quality criteria of the end-products. Eighteen (18) Shô basi samples were collected from the interviewed groups and used for the determination of the physical and chemical properties of Shô basi. Results showed that most of the processors were married, non or moderately literate and aged between 20 and 59 years women. The main cowpea varieties used for the production are sangaraka and wilibali, both from the species Vigna unguiculata. Both varieties of cowpea are characterized by a white or cream color. Shô basi is produced using a single process with two major technological variants. One involves a wet total dehulling (VDT), whereas the second involves a dry partial dehulling (VDP) of cowpea seeds. Regardless of the technological variant and cowpea variety used, interviewees indicated that a good qualityShô basi must have a light color, a soft mouthfeel texture, a homogeneous granule size and lacking beany flavor. Protein(25,0g/100g) and polyphenol (24,3mg/100g)contents as well as swelling level were similar for Shô basi from both variants. However, Shô basi from technology involving partial dehulling (VDP) was less bright, richer in fiber and minerals, and contained more fine granules thanShô basi involving whole dehulling(VDT). Cowpea dehulling, flour granulation, steam cooking and drying are the mean constraints for quality standardization and large-scale production of Shô basi in Mali.

scholarly journals Determination of the Optimum Rate of N Fertilizers with Addition of Goat Manure for Production of Cowpea (Vigna unguiculata [L.] Walp)

2019 ◽  
Vol 6 (02) ◽  
pp. 121-128
Author(s):  
Devi Liana ◽  
Heni Purnamawati ◽  
Maya Melati ◽  
Yudiwanti Wahyu
Keyword(s):  
Vigna Unguiculata ◽  
Seed Weight ◽  
Block Design ◽  
Dry Weight ◽  
N Fertilizer ◽  
Plant Seed ◽  
Optimum Rate ◽  
Randomized Block Design ◽  
Goat Manure ◽  
100 Seed Weight

Cowpea (Vigna unguiculata L. Walp) is one of the potential substitutes of soybean due to its similar nutritional content. This study aims to determine the optimum rate of N fertilizer for the production of cowpea, and to determine the effects of the interaction between N fertilizer rates and goat manure application on cowpea production. The experiment was organized in a split-plot with a complete randomized block design with three replications. The main plot was goat manure, i.e. 0 and 5 tons.ha-1; the sub-plot was nitrogen fertilizer with five rates (0, 50, 100, 150, and 200% of the recommended rate), i.e. 0, 22.5, 45, 67.5, and 90 kg N.ha-1. Application of N fertilizer reduced the 100-seed weight and slightly reduced cowpea yield and yield components. Application of goat manure increased seed dry weight per plant, number of pods per plant, dry pod weight per plant, seed dry weight per m2, productivity, 100-seed weight, and the harvest index. There was no significant interaction between goat manure and different rates of nitrogen in affecting cowpea growth.

Usages of Mobile Application Developed by Krishi Vigyan Kendra Banavasi

2022 ◽  
Vol 58 (1) ◽  
pp. 72-75
Author(s):  
M. Jayalakshmi ◽  
G. Prasadbabu ◽  
B. H. Chaithanya ◽  
A. Lavanya ◽  
T. Srinivas
Keyword(s):  
Mobile Applications ◽  
Mobile Application ◽  
Andhra Pradesh ◽  
Fertilizer Application ◽  
Control Measures ◽  
Improved Varieties ◽  
Related Information ◽  
Livestock Farmers ◽  
Agriculture Fertilizer ◽  
The Impact

A survey was conducted to assess the impact of mobile applications developed by theKrishiVigyan Kendra Banavasi with 150 farmers in Kurnool district of Andhra Pradesh inthe year 2020. KVK Banavasi developed three mobile applications namely ANGRAU-ATARI CFLD, ANGRAU Pashu Poshan and Fertilizer Calculator for benefiting farmingcommunity. Majority (64.67%) of the respondents were found in medium usage of mobileapplications, in agriculture. Fertilizer Calculator mobile application was found highest usage(74.50%) among the farmers when compared with other two applications. ANGRAUATATRI CFLD application was used by an average of 46.83 per cent farmers forinformation on new improved varieties, 75 % for control measures of pest and diseasesand 29 per cent for market related information. ANGRAU Pashu Poshan application wasused by 75 per cent livestock farmers for sheep management, 56 per cent for cattlemanagement and 45 per cent for poultry related information. Fertilizer calculator applicationwas used by 80 per cent farmers for recommended dose of fertilizers and 10 per cent forsoil test based fertilizer application.

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