scholarly journals Efficacy of new insecticide molecules against leaf eating caterpillar, Diaphania indica in bitter gourd

2019 ◽  
Vol 8 (3) ◽  
pp. 3514
Author(s):  
Janani Maha ◽  
Usha Rani B. ◽  
Suresh K.
Keyword(s):  
Field Experiment ◽  
Tamil Nadu ◽  
Bitter Gourd ◽  
Diaphania Indica

Field experiment was conducted to evaluate the efficacy of seven new insecticides against leaf eating caterpillar, Diaphania indica in bitter gourd, being maintained by farmer field in Thuyyaneri, Madurai district, Tamil Nadu. It revealed that Chlorantraniliprole @ 150ml/ ha was most effective, followed by Chlorantraniliprole 18.5 SC 125 ml/ha, spinosad 45 % SC 160 ml/ha, Thiodicarb 75 %WP 750 g/ha, and Imidacloprid 17.8 SL 250 ml/ha, were moderately effective. While Dichlorovos 76 %EC 325 ml/ha and spiromesifen 22.9 SC 500 ml/ha, were least effective against bitter gourd leaf eating caterpillar.

scholarly journals Study on Physiological Parameters and Economics of Rice Cultivation under Different Establishment Methods and Water Management Practices

2020 ◽  
pp. 123-131
Author(s):  
S. Selvakumar ◽  
S. Sakthivel ◽  
Akihiko Kamoshita ◽  
R. Babu ◽  
S. Thiyageshwari ◽  
...  
Keyword(s):  
Water Management ◽  
Field Experiment ◽  
Water Level ◽  
Water Scarcity ◽  
Tamil Nadu ◽  
Management Practices ◽  
Irrigation Management ◽  
Management Strategies ◽  
Soil Surface ◽  
Physiological Parameters

A field experiment was conducted at Tamil Nadu Agricultural University, Agricultural College and Research Institute, Madurai, Tamil Nadu, India, during summer 2019 to study about the changes in physiological parameters of rice under various establishment and water management strategies and to find out the suitable method of rice establishment and irrigation management practices for tank irrigated command areas during water scarcity situation. Field experiment comprised of four establishment methods in combination with four irrigation management strategies. Medium duration fine grain rice variety TKM 13 was used for the study. Results of the study revealed that machine transplanting under unpuddled soil combined with irrigation after formation of hairline crack recorded improved physiological parameters and yield. It was on par with machine transplanting under unpuddled soil combined with irrigation when water level reaches 5 cm below soil surface. Higher gross return, net return and B:C ratio were observed with machine transplanting under unpuddled soil combined with irrigation after formation of hairline crack. This was followed by machine transplanting under unpuddled soil combined with irrigation when water level reaches 5 cm below soil. Hence, the result of study concluded that machine transplanting under unpuddled soil combined with irrigation when water level reaches 5 cm below soil surface can be recommended as the suitable technology for the farmers of tank irrigated command area to get higher return with minimum use of resources under water scarcity situation.

scholarly journals An Experimental Study and Analysis on Solar Drying of Bitter Gourd Using an Evacuated Tube Air Collector in Thanjavur, Tamil Nadu, India

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
AR. Umayal Sundari ◽  
P. Neelamegam ◽  
C. V. Subramanian
Keyword(s):  
Moisture Content ◽  
Tamil Nadu ◽  
Research Work ◽  
Bitter Gourd ◽  
Sun Drying ◽  
Solar Dryer ◽  
Drying Rates ◽  
Evacuated Tube ◽  
Drying Chamber

The objective of this research work is to design and develop a forced convection solar dryer using evacuated tube air collector and study its performance on bitter gourd in Thanjavur District, Tamilnadu, India. The designed solar dryer consists of a drying chamber, evacuated tube air collector, a blower, and a chimney. Drying parameters, moisture ratio and drying rates, are calculated and their performance is compared with natural sun drying. The results of the present study show that the proposed solar dryer has greater efficiency, and the moisture content of bitter gourd is reduced from 91% to 6.25% in 6 hours as compared to 10 hours in natural sun drying. In this solar dryer, the products are uniformly dried, and the moisture content of the sample is controlled. It is found that the quality of the dried bitter gourd using solar dryer is higher than the natural sun-dried bitter gourd.

scholarly journals Performance Analysis of Bitter Gourd (MomordicacharantiaL.) under Different Training Systems

2021 ◽  
Vol 108 (june) ◽  
pp. 1-5
Author(s):  
Bhanuprakash c ◽  
◽  
Sankari A ◽  
Ushanandhini Devi H ◽  
Murali Arthanari Arthanari ◽  
...  
Keyword(s):  
Support System ◽  
Tamil Nadu ◽  
Fruit Weight ◽  
Training System ◽  
Bitter Gourd ◽  
Cost Ratio ◽  
Internodal Length ◽  
Benefit Cost Ratio ◽  
Training Systems ◽  
Benefit Cost

The present study aimed to identify suitable training system for bitter gourd cultivation,The experiment was conducted at College Orchard, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore. Among the different training systems evaluated, pandal system recorded the highest vine length (481.81 cm), followed by the bamboo training system (476.76cm). The treatment using fish net training system showed the highest internodal length (6.34 cm). Pandal training system exhibited the highest number of branches (10.04). Earliness in terms of days for the appearance of male and female flowers was observed in pandal training system (41.33 and 53.16 days respectively). Days to 50% flowering was also found earlier in the pandal system (64.23 days). The narrow sex ratio (5.86) was observed in the bamboo pole support system tied with gunny thread. The pandal system recorded the highest number of fruits per vine (78.66) and gunny thread training system recorded the lowest number of fruits (34.83). The highest fruit length of 21.35 Madras Agric.J., 2021; doi: 10.29321/MAJ.10.000291(online first) cm and fruit diameter of 3.57 cm wererecorded inthe pandal training system. The maximum fruit weight was recorded in the pandal system (74.12 g fruit-1) and the minimum fruit weight was observed (52.74g fruit-1) in the fish net system. Pandal training system exhibited the highest yield plant-1 (5.79 kg plant-1), yield plot-1 (132.65 kg) and yield hectare-1 (119.16 q ha-1) while the lowest values were recorded under gunny thread system of cultivation. Among the different training systems pandal/conventional training system is more economical with a benefit-cost ratio of 2.51 followed by bamboo system, fish net system and bamboo poles support system tied with gunny thread

Effect of spacing and fertilizer level on yield attributes of Dhaincha (Sesbania aculeata)

2017 ◽  
Author(s):  
P. Rajesh ◽  
J. Sundersingh Rajapandian ◽  
K. Sharmili ◽  
S. Marimuthu ◽  
R. SureshKumar
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Tamil Nadu ◽  
Yield Attributes ◽  
Sesbania Aculeata ◽  
Agricultural College ◽  
Farm Unit ◽  
And Control ◽  
Pod Length ◽  
Number Of Seeds

A field experiment was conducted at Central Farm Unit situated in Agricultural College and Research Institute, Tamil Nadu Agricultural University, Killikulam during Rabi 2011-12 to evaluate the effect of spacing (120×30cm, 120×20 cm, 90×30 cm and 90×20 cm) and fertilizer levels (12.5:25:12.5, 18.75:37.5:18.75, 25:50:25, 31.25:62.5:31.25 kg N, P2O5, K2O/ha and control) on yield attributes of Dhaincha. The results revealed that spacing adopted with 120×30 cm significantly recorded higher number of pods/plant (53.7), pod length (19.94 cm), number of seeds/pod (28.52) and seed yield (585 kg/ha) of Dhaincha. In respect of different fertilizer levels, application NPK @ 31.25:62.5:31.25 kg/ha perceived higher yield attributes (number of pods/plant (48.8), pod length (17.98), number of seeds/ pod (29.28) and seed yield (609 kg/ha). Combination of spacing (120×30 cm) with fertilizer levels of 31.25:62.5:31.25 kg/ha significantly recorded higher seed yield of 705 kg/ha.

scholarly journals STUDIES ON THE EFFECT OF ARBUSCULAR MYCORRHIZA AND PHOSPHATE SOLUBILIZING BACTERIA UNDER REDUCED FERTILIZER APPLICATION ON TOMATO

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
K. Sivakumar ◽  
N. Pandeeswari
Keyword(s):  
Field Experiment ◽  
Arbuscular Mycorrhiza ◽  
Tamil Nadu ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Phosphate Solubilizing Bacteria ◽  
Total Plant ◽  
Phosphate Solubilizing

A field experiment was carried out at department of agricultural microbiology, Annamalai University, Chidambaram, Tamil Nadu, India to evaluate the performance of tomato inoculated with Arbuscular Mycorrhiza (AM) and phosphate solubilizing bacteria (PSB) when the fertilizer application was reduced to 50% and 25% of the recommended fertilizer dose (RDF). The results of the study revealed that, inoculation of tomato with AM and PSB significantly increased all the parameters examined during the study. However, the best results were obtained when the seedlings were inoculated with AM followed by PSB at 50 % of the RDF as evident from 16.6% and 12.6% increase in the total plant dry weight at the respective treatments as compared to control. Similarly the concentration of nitrogen (N), phosphorus (P), and potassium (K) in the plants inoculated with AM at 50 % of the RDF was increased by 17.3, 20.6 and 23.2% followed by an increase of 2.5, 11.5, and 12.2% at PSB with 50 % RDF as compared to control. Yield of tomato was respectively increased by 9.7% and 4.4 % when inoculated with AM and PSB at 50 % of RDF as compared to control.

scholarly journals Biomethanated distillery spentwash and pressmud biocompost as sources of plant nutrients for groundnut (Arachis hypogaea L.)

2013 ◽  
Vol 5 (2) ◽  
pp. 328-334 ◽  
Author(s):  
M. Selvamurugan ◽  
P. Doraisamy ◽  
M. Maheswari
Keyword(s):  
Field Experiment ◽  
Tamil Nadu ◽  
Kernel Weight ◽  
Plant Nutrients ◽  
Cost Ratio ◽  
Yield Attributes ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Distillery Spentwash ◽  
The Impact

A field experiment was conducted to study the impact of biomethanated distillery spentwash and pressmud biocompost in various proportions with inorganic fertilizers on yield attributes, yield, oil and protein content of groundnut at Research and Development Farm of M/s. Bhavani Distilleries and Chemicals Ltd., T. Pudur, Thimiri, Tamil Nadu. Results of the field experiment revealed that yield and yield attributes viz., number of matured pods, 100 kernel weight and shelling percentage of groundnut were improved by the application of biomethanated distillery spentwash and pressmud biocompost compared to recommended NPK as chemical fertilizers. One-time pre-sown application of BDS @ 100 m3ha-1 along with recommended NP in groundnut registered higher pod, grain and haulm yield of 1774, 1272 and 4668 kg ha-1, respectively and the increase was to the tune of 35.83, 43.57 and 46.01 per cent, respectively over control. Similar to yield, BDS application increased the protein and oil content of groundnut kernels significantly. The net returns and benefit cost ratio of sugarcane were also as high as Rs.19,612 ha-1 and 1.90 for the treatment that received pre-sown application of BDS @ 100 m3ha-1 along with recommended NP as compared to control of Rs.19,612 ha-1 and 1.38, respectively. This concludes that the biomethanated distillery spentwash can be conveniently used as source of plant nutrients for groundnut.

scholarly journals Seasonal Fluctuations and Management of Sucking Insect Pests on Bitter Gourd (Momordica charantia L.)

2020 ◽  
Author(s):  
M.M. Mawtham ◽  
C. Gailce Leo Justin ◽  
S. Sheeba Joyce Roseleen
Keyword(s):  
Tamil Nadu ◽  
Field Experiments ◽  
Insect Pests ◽  
Block Design ◽  
Insect Pest ◽  
Bitter Gourd ◽  
Maximum Temperature ◽  
Seasonal Fluctuations ◽  
Pest Population ◽  
Field Efficacy

Background: Bitter gourd, an important tropical and sub-tropical vegetable which occupies a predominant position in Indian vegetables. The aphids and leafhoppers are more serious agricultural insect pests and aphids indirectly transmit plant virus diseases like, Cucumber Mosaic Virus (CMV) in cucurbit crops. Our study aimed to noticed seasonal fluctuations and bio-inputs using management of sucking pests in bitter gourd.Methods: Field experiments were conducted during 2017-19 in a farmer’s field at Ellamanam village, Tiruchirappalli district, Tamil Nadu in insect pest population was monitored at weekly intervals from ten randomly selected plants in three plots. In field efficacy studies conducted Randomised Block Design with eight treatments and three replications. Result: Our results showed in the maximum aphid and leafhopper populations were recorded in September 2018 during 39th SMW (Standard Meteorological Week). In Rabi, the aphids and leaf hopper population were maximum in 9th and 10th SMW in February and March. The population of aphids and leafhopper were positively correlated with maximum temperature, minimum temperature, wind speed and wind direction. Rainfall and relative humidity were negatively associated to aphids and leafhopper infestation. In Kharif and Rabi, high reduction of aphid and leafhopper pest population were noticed in chlorantraniliprole 18.5 SC and spinosad 45 SC compared to control. Among the bio-inputs agniastram recorded higher reduction of pest population followed by karpurakaraisal, NSKE, fish acid and ten leaf extract.

scholarly journals Emergence of Cucurbit Aphid-Borne Yellows Virus in Bitter Gourd (Momordica charantia) in Tamil Nadu, India

Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1441
Author(s):  
B. Sangeetha ◽  
V. G. Malathi ◽  
P. Renukadevi
Keyword(s):  
Tamil Nadu ◽  
Momordica Charantia ◽  
Bitter Gourd

Biometric assessment of cucumber moth, Diaphania indica (Saunders) on bitter gourd (Momordica charantia L.)

2021 ◽  
Author(s):  
Sunidhi Pilania ◽  
Surender Singh Yadav ◽  
Sunita Yadav ◽  
Krishna Rolania ◽  
Lomash Kumar ◽  
...  
Keyword(s):  
Momordica Charantia ◽  
Bitter Gourd ◽  
Diaphania Indica

Diversity of floral visitors in bitter gourd in Madurai district, Tamil Nadu

2019 ◽  
Vol 81 (4) ◽  
pp. 805
Author(s):  
A. Yogapriya ◽  
B. Usharani ◽  
K. Suresh ◽  
S. Vellaikumar ◽  
M. Shanthi
Keyword(s):  
Tamil Nadu ◽  
Bitter Gourd ◽  
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