scholarly journals Yield Performance of Non-spiny Brinjal Variety VRM (Br)2 in Northern Zone of Tamil Nadu, India

2021 ◽  
pp. 38-42
Author(s):  
S. Nanthakumar ◽  
B. K. Savitha
Keyword(s):  
Study Design ◽  
Tamil Nadu ◽  
Insect Pests ◽  
Fruit Yield ◽  
Yield Performance ◽  
Fruit Borer ◽  
Northern Zone ◽  
Check Variety ◽  
Moderately Resistant ◽  
Fruit Characters

Aim: To identify the yield performance of non-spiny brinjal variety VRM (Br)2. Study Design: Non-spiny brinjal variety VRM (Br)2 was developed by hybridization between Senur local x spiny brinjal VRM (Br) 1 followed by pedigree method of selection. Place and Duration of the Study: The present study was carried out at northern districts of Tamil Nadu viz., Vellore, Ranipet, Tirupathur, Thiruvannamalai, Dharmapuri and Krishnagiri during 2015-2016. Methodology: VRM (Br) 2 was evaluated under different trials during 2017-2020 at various locations along with ruling check variety VRM (Br) 1.The observations were recorded at yield and yield characters. Results: VRM (Br) 2 recorded highest fruit yield of 46.35 t/ha as compared to check variety VRM (Br) 1 (32.85 t/ha). It was 41.00 % higher fruit yield over check variety VRM (Br) 1 and moderately resistant to major insect pests. viz., epilachna beetle, whiteflies and shoot and fruit borer. Conclusion: All the plant and fruit characters are similar to spiny brinjal VRM (Br) 1, whereas the spines are absent in the variety VRM (Br) 2. Due to it’s non-spiny nature, intercultural operations viz., harvesting, packing, storage and transport are easy to do.

scholarly journals Field efficacy of some new insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.) (Lepidoptera: Pyralidae) and their toxic effects on natural enemies

2019 ◽  
Vol 17 (3) ◽  
pp. 319-324
Author(s):  
Mohammad Wasif Rahman ◽  
Gopal Das ◽  
Mohammad Mahir Uddin
Keyword(s):  
Natural Enemies ◽  
Untreated Control ◽  
Insect Pests ◽  
Block Design ◽  
Fruit Yield ◽  
Limiting Factor ◽  
Ladybird Beetle ◽  
Leucinodes Orbonalis ◽  
Fruit Borer ◽  
Marketable Fruit

Brinjal is susceptible to attack of various insect pests from seedling to fruiting stage. Among these, brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.) is the most destructive pest and is considered to be the limiting factor in quantitative as well asqualitative harvest of brinjal fruits. In the present study, efficacy of some new insecticides viz. Pine 6 WG (Emamectin benzoate + Abamectin), Heron 5 EC (Lufenuron), Belt 24 WG (Flubendiamide) and Cyclone 2.5 EC (Lambda-cyhalothrin) were evaluated against brinjal shoot and fruit borer (BSFB) in field condition from the period of October, 2015 to April, 2016. The experiment was laid out in a Randomized Complete Block Design (RCBD) having three replications and two concentrations of each of the insecticides. A total of three spraying was given and finally a cumulative mean was found out. Data were collected on percent shoot infestation, percent fruit infestation, marketable fruit yield (t/ha) and abundances of natural enemies per plant. Results clearly showed that all the insecticides significantly reduced BSFB infestation as well as increased marketable fruit yield compared to the untreated control. The highest shoot (27.40%) and fruit (55.93%) infestation were recorded from control plots. On the other hand, the lowest shoot (6.71%) and fruit (11.58%) infestation were recorded from Pine 6 WG treated plots @ 0.50 g/L that was followed by Heron 5 EC @ 1.0 ml/L (6.89% shoot; 14.51% fruits), Cyclone 2.5 EC @ 1.5 ml/L (15.73% shoot and 16.45% fruits) and Belt 24 WG @ 0.50 g/L (9.53% shoot and 25.47% fruits), respectively. Similar trend was found in case of marketable fruit yield as well.  Pine 6 WG and Heron 5 EC were found to be comparatively safe for both ladybird beetle and lynx spiders as their abundances were not changed significantly compared to untreated control. In contrast, the application of Belt 24 WG and Cyclone 2.5 EC has reduced 50 to 60% of the ladybird beetle and lynx spiders populations in brinjal eco-system. The results suggested that two biopesticides viz., Pine 6 WG and Heron 5 EC can be used successfully against BSFB considering minimum shoot and fruit infestation, higher fruit yield and less toxicity to natural enemies in brinjal eco-system. J Bangladesh Agril Univ 17(3): 319–324, 2019

scholarly journals Screening of Some Rice Germplasm for Resistance to Leaf Blast and Brown Plant Hopper

2021 ◽  
Vol 3 (2) ◽  
pp. 1-10
Author(s):  
J. O Mbe ◽  
A. Isong ◽  
A. Ahmed ◽  
R. Saraswathi
Keyword(s):  
Evaluation System ◽  
Tamil Nadu ◽  
Insect Pests ◽  
Hot Spot ◽  
Cost Effective ◽  
Blast Disease ◽  
Growth Stages ◽  
Leaf Blast ◽  
Moderately Resistant ◽  
Brown Plant Hopper

Blast is a major rice disease that can affect rice plant during all growth stages, wherein causing drastic yield loss globally. Host-plant resistance has been the most practical and cost effective approach to control insect pests and diseases in crops. Therefore, eighty (80) rice genotypes were screened for resistance to the leaf blast and brown plant hopper at Hybrid Rice Evaluation Centre, Gudalur, The Nilgiris District, Tamil Nadu, India. The study site is known as blast and brown plant hopper (BPH) hot spot in India. The genotypes were evaluated according to the standard evaluation system for rice. The results revealed that nineteen (19) genotypes namely; CB08504, CB13506, CB14528, CB14681, PR114, ORJ1141, CR3868-225-1-2-2-5, MTU1156, NDR2111-13-1, PAU3835-12-1-1-2, MTU1157, HKR08-1, CT16658-5-2-3SR-2-1MMP, IR10A136, CB14149, CO(R) 49, Ciherang, IR11A294 and EC578527 showed resistant reaction and 27 genotypes were found to be moderately resistant to the leaf blast disease. None of the genotypes was immune to BPH reaction. Four (4) genotypes were resistant, and twenty-three (23) were moderately resistant. The genotypes viz., CR3868-225-1-2-2-5 and NDR 2111-13-1 which were resistant to leaf blast showed moderate resistance to BPH. Genotypes like HHZ 17-DT-6-Sal3-DT 1, BRR 0015, PAU 3842-60-5-1-3, Vanjinathan and EC 465120 were moderately resistant to both blast and BPH. These genotypes identified may be utilized as genetic sources for multiple resistant genes in rice improvement.

scholarly journals Yield performance of strawberry genotypes

2016 ◽  
Vol 41 (3) ◽  
pp. 481-489
Author(s):  
S Chowhan ◽  
MM Hossain ◽  
MA Hoque ◽  
G Rasul ◽  
MS Roni
Keyword(s):  
Climatic Condition ◽  
Growth Yield ◽  
Field Performance ◽  
Fruit Yield ◽  
Flower Initiation ◽  
Yield Performance ◽  
Yield And Quality ◽  
Number Of Leaves

Five strawberry genotypes ('Rabi 3', 'Camarosa', 'BARI Strawberry 1', 'BADC Strawberry' and 'Festival') were evaluated for their field performance. The maximum number of leaves/plant (14.2), canopy spread (31.82 cm) and runners/plant (7.2) were found with 'Camarosa', 'Festival' and 'Rabi 3' respectively. Festival took the lowest number of days to flower initiation (32.5). The highest number of flowers (23.64) and fruits/plant (19.98) were found in 'Camarosa'. The heaviest (21.83 g) and the largest sized individual fruit (1539.31 mm2) were produced by 'Festival'. Fruit TSS (%) was the highest (15.83) in BARI Strawberry 1. Genotype 'Festival' gave the highest fruit yield (12.94 t/ha) and 'BADC Strawberry' yielded the lowest (6.15 t/ha). Considering growth, yield and quality of fruit, genotypes 'Festival' and 'Camarosa' were found promising under the climatic condition of Salna.Bangladesh J. Agril. Res. 41(3): 481-489, September 2016

scholarly journals Performance of Acerola, Malpighia punicifolia L., in the Coffee Region of Puerto Rico

1969 ◽  
Vol 46 (3) ◽  
pp. 195-204
Author(s):  
Tara Singh-Dhaliwal ◽  
Aníbal Torres-Sepúlveda
Keyword(s):  
Puerto Rico ◽  
Vitamin C ◽  
Cultural Practices ◽  
Insect Pests ◽  
Average Diameter ◽  
Great Variability ◽  
Fruit Yield ◽  
Large Size ◽  
Lateral Branches ◽  
Lower Vitamin

The performance of acerola (Malpighia punicifolia L.) was studied for 7 years at Castañer, located in the centre of the Coffee Region of Puerto Rico. The acerola plants were raised from seed of clone B-17. They were planted in the field in an Alonso clay soil with a pH of about 5.0. To avoid soil erosion the planting was not cultivated. However, the other cultural practices such as cutting of weeds, application of fertilizer, and so on were properly attended. The acerola trees showed great variability as to height, diameter of canopy, number and thickness of scaffold limbs, length of primary lateral branches, and number of spurs. The acerola trees started bearing well when about 3 years old. The crop was harvested from April to November, with peak production in August. The acerola trees showed great variability as to fruit yield. Over a 3-year period their average annual fruit yield varied from 205.2 to 481.1 ounces. The trees also showed great variability as to the average diameter and weight of their fruits. However, the diameter and weight of fruits harvested from the same tree on different dates did not vary much. The acerola trees displayed great variability as to vitamin C contents of their fruits. Fully ripe fruits generally had lower vitamin C contents than the partly ripe fruits from the same tree. The acerola fruits were utilized for preparing juice and jelly on a home scale. Many persons liked to eat fruits fresh, especially those of large size and lower acidity. There was no serious incidence of diseases and insect pests in the acerola planting. The present study indicates that acerola can be commercially grown in the Coffee Region of Puerto Rico, provided the fruits can be sold to some canning or other processing concern.

scholarly journals Performance assessment of Bhendi hybrid Co 4 cultivation over local check variety under Front Line Demonstration

2020 ◽  
Vol 13 (1) ◽  
pp. 189-196
Author(s):  
V. Sivakumar ◽  
S. Praneetha ◽  
R. Balakumbahan ◽  
B. Meena ◽  
G. Thiyagarajan ◽  
...  
Keyword(s):  
Tamil Nadu ◽  
Growth Yield ◽  
Field Investigation ◽  
Average Yield ◽  
Front Line ◽  
Recorded Data ◽  
Check Variety ◽  
Gap Technology ◽  
Benefit Cost ◽  
Extension Gap

A field investigation on productivity augmentation of bhendi [Abelmoschus esculentus L. Moench] was carried out at Melanagai village, Mannargudi block of Thrivarurur district. The study was conducted by ICAR-Krishi Vigyan Kendra, Needamangalam [Tamil Nadu], during 2016-17 to assess the bhendi/okra hybrid Co 4 performance along with local check variety.The per cent yield improvement, technology gap, extension gap, technology index were calculated based on the observation recorded on growth, yield and economical attributes of both demonstration and local adopted check variety. The recorded data showed that the average yield of demonstration plots was 20.35 tha–1whereas the local check recorded an average yield of 12.80 tha–1 and there is an amplified average yield by 37.21 per cent. The gross returns and benefit cost ratios from the demonstration plot were higher [Rs. 121020/ha and 2.80 respectively] as compared to farmer’s practices [Rs. 76800/ha and 1.90]. The demonstrated improved variety i.e. okra hybrid Co 4 recorded superior growth, yield and economical parameters of the local adopted check variety. The enhancement in growth, yield and economic parameters under okra hybrid Co4 than the farmers’ practice [local check] signifying the technical and economic viability of improved variety / hybrid over farmers practices.

scholarly journals A Survey on Occurrence and Diversity of Insect Pests of Cauliflower in Dindigul and Theni Districts of Tamil Nadu, India

2017 ◽  
Vol 6 (8) ◽  
pp. 2495-2505 ◽  
Author(s):  
Arun Debbarma ◽  
J. Jayaraj ◽  
P. Chandramani ◽  
N. Senthil ◽  
M. Ananthan ◽  
...  
Keyword(s):  
Tamil Nadu ◽  
Insect Pests

Resistance levels of selected rice genotypes to Sitophilus oryzae L. and Rhyzopertha dominica F. infestations

2020 ◽  
Vol 17 ◽  
pp. 39-46
Author(s):  
S.K. Ajao ◽  
K.O. Popoola ◽  
S Mande ◽  
A Togola
Keyword(s):  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Rhyzopertha Dominica ◽  
International Institute ◽  
Rice Varieties ◽  
Resistance Level ◽  
Susceptibility Index ◽  
Grain Damage ◽  
Rice Genotypes ◽  
Moderately Resistant

The need to screen new rice genotypes for resistance to stored product insect pests is important to boost production and availability of rice for food security. Therefore, thirteen rice genotypes and varieties included ten interspecific rice genotypes from two crossed parents Oryza sativa (WAB 56-104) and Oryza barthii (IRGC 106107), the two parents and NERICA8 variety were collected from Africa Rice Center, International Institute of Tropical Agriculture (IITA) Ibadan, to examine their resistance level to infestation by Sitophilus oryzae L. and Rhyzopertha dominica F. The resistance of the varieties were assessed by artificial infestation with 12 unsexed adults each in 10 g of the rice varieties in four replicates under laboratory conditions of 26 ± 2oC temperature and 75 ± 5% relative humidity in a completely randomized design. Number of adult insect emergent, per cent grain damage, percent weight loss of infested samples and index of susceptibility were determined. Correlation analysis between nutritional contents of the varieties and infestation variables were also obtained. Results indicate differential responses of the two insects on the rice genotypes/varieties. The O. barthii parent was resistant, while the O. sativa parent was moderately resistant using the susceptibility index. Of the ten rice genotypes, G4, G3, G1, G7, G2, G10 and G9 were resistant in descending order, while G5 and G6 were moderately resistant, whereas only G8 was susceptible. NERICA8 was also found to be susceptible to infestation. In addition, the resistant grains had lower ash content. Modification in genetic variations and nutritional contents of new rice varieties may be a critical factor in insect resistant genotype pro-grammes to reduce post-harvest losses incurred by farmers. Keywords: Rice resistant genotypes; Rhyzopertha dominica; Oryzae sativa; Oryzae barthii; Sitophilus oryzae; susceptibility index

Impact of intercropping system to minimise the sucking pests incidence in groundnut (Arachis hypogaea Linnaeus)

2017 ◽  
Author(s):  
P. Parthiban ◽  
C. Chinniah ◽  
R. K. Murali Baskaran ◽  
K. Suresh ◽  
A. Ravi Kumar
Keyword(s):  
Arachis Hypogaea ◽  
Tamil Nadu ◽  
Insect Pests ◽  
Pennisetum Glaucum ◽  
Cropping Systems ◽  
Cropping System ◽  
Cost Effective ◽  
Scirtothrips Dorsalis ◽  
Aphis Craccivora Koch ◽  
Tagetes Erecta L

Field experiment was carried out during 2014 – 2015 at DARS, Chettinad, Sivagangai district of Tamil Nadu to find out cost-effective groundnut based inter-cropping system for the management of key insect pests. Groundnut (Arachis hypogaea Linnaeus; Variety: VRI II) when intercropped with bajra (Pennisetum glaucum L.; Variety: Co 7), maize (Zea mays L.; Variety; Co 6) and sorghum (Sorghum bicolor L.; Variety: Co 30) 4:1 ratio harboured significantly less mean population of sucking pests viz. leafhopper, Empoasca kerri Pruthi, Aphids, Aphis craccivora Koch and Thrips, Scirtothrips dorsalis Hood recording 23.05, 24.81 and 25.47 nos./10 plants, 21.27, 23.52 and 22.44 nos./2.5 cm shoot and 11.15, 12.62 and 12.19 nos./5 leaflet respectively, whereas intercropping with redgram (Cajanus cajan L.; Variety: VBN (Rg) 3), marigold (Tagetes erecta L.; Variety: MDU 1), sesame (Sesamum indicum L.; Variety: Co 1) and onion (Allium cepa L.; Variety: Co 1) recorded high mean population as compared to other cropping systems while groundnut as pure crop recorded the highest mean population of 33.14 nos./10 plants, 33.22 nos./2.5 cm shoot and 19.00 nos./5 leaflet respectively.

scholarly journals Host Preference, Mode of Damage and Succession of Major Insect Pests of Brinjal

2020 ◽  
pp. 68-78
Author(s):  
Saifullah Omar Nasif ◽  
Shafiquzzaman Siddiquee
Keyword(s):  
Abiotic Stresses ◽  
Management Strategy ◽  
Climate Changes ◽  
Host Preference ◽  
Insect Pests ◽  
Seasonal Abundance ◽  
Biotic And Abiotic Stresses ◽  
Host Preferences ◽  
Damage Pattern ◽  
Fruit Borer

Brinjal is one of the most popular solanaceous vegetables worldwide because of its nutritive and nutraceutical values. In recent decades, brinjal cultivation has been experiencing increased biotic and abiotic stresses due to the climate changes, which had affected the cultivation practices, growers’ profit and consumers’ choice to a larger extent. Amongst different insect pests, brinjal shoot and fruit borer (BSFB) is the major one causing significant reduction in economic yield followed by epilachna beetle, aphid, jassid and whitefly. On the other hand, proper knowledge on nature of damage, host preference, and seasonal abundance of insect pests is a pre-requisite for development and deployment of an appropriate, effective and timely management strategy against the pests.  A pool of literatures on host preferences, damage pattern and succession of major insect pests of brinjal has been reviewed and presented in this paper.

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