Allied Science articles list

The most important factor that affects the crop production in terms of nutritional content of foliar plants is the global climate change. Herbivore’s growth, development, survival and geographical distribution all are determined by elevated CO2 and temperature. The interactions between herbivores and plants have changed due to increasing level of CO2 and temperature. The effect of high CO2 and temperature on grain legume plant which change in to plant physiology (e.g., nutritional content, foliage biomass) and how it change in herbivory metabolism rate and food consumption rate. Plant injury is determined by two factors viz. resistance and tolerance and both are influenced by greater CO2 and temperature. Legumes are an important source of food and feed in the form of proteins and also improve the soil environment. The repercussions of the abiotic factors mentioned above needs discussion among the scientific community. We may able to limit the negative repercussions of stated factors in future breeding projects by harnessing the practical favourable impacts and by including such influences of elevated CO2 and temperature on pulses productivity. The extensive research is necessary to overcome the negative effects of high CO2 and temperature on insect-plant interaction

DR. BABU LAL JAT

Background: Pulses are well known richest source of vegetable protein and is known as poor man’s food because of its essential component in diet. The frontline demonstrations of pulses were carried out on 311.8 ha area with 694 demonstrations in different clusters of Nagaur district of Rajasthan. Methods: Front line demonstrations on chickpea, mung bean and moth bean crop were conducted by Krishi Vigyan Kendra, Nagaur-I, Agriculture University, Jodhpur during rabi and Kharif season of 2011-12 to 2019-20. Result: In demonstrations up to 29.43%, 30.29% and 35.22% yield increase of chickpea, mungbean and moth bean crop was observed over the farmer’s practices in the year 2011-12, 2017 and 2016. The yield gap between improved technology and conventional farmer’s practices was ranging from 1.98 to 4.54 q/ha, 0.61 to 2.55 q/ha and 0.6 to 1.68 q/ha, respectively. Whereas, the highest net returns of ` 71,881 ha-1 , ` 45,884 ha-1 and ` 14,315 ha-1 was observed in the year 2019-20, 2014 and 2016, respectively with the highest incremental cost benefit ratio of 1:3.71, 1:3.95 and 1:1.97 under demonstrations practices.

DR. BABU LAL JAT

Background: The legume pod borer, Helicoverpa armigera (Hübner), is one of the most damaging crop pests, including pigeonpea. Host plant resistance is a component of pest management and therefore, we standardize a nylon bag No-Choice Bioassay technique to screen for resistance to H. armigera under field conditions. Methods: Pigeonpea plants were infested with 24 h old 1, 2, 3, 4 and 5 larvae per plant inside the nylon bag. Observations were recorded on pod damage, larval survival, larval weight, pupation, adult emergence, and fecundity after 10 days. Result: Pigeonpea varieties AL-201, H03-41 and PAU-881 exhibited lower pod damage (15.89 to 19.77%) and larval weight (12.02 to 13.82 mg). The expression of resistance to H. armigera was associated with trichome density, pod wall thickness and higher amount of phenolic compounds and condensed tannins. Lower trichome density and thin pod walls and higher amounts of sugars rendered the varieties Paras, Manak and Pussa-992 more susceptible to H. armigera. Nylon bag assay can be used to screen and select pigeonpea cultivars for resistance to H. armigera.

DR. BABU LAL JAT

To test and popularize the Krishi Vigyan Kendra, Barmer-II, Gudamalami, Rajasthan recommended Enhance the Productivity of Ridge gourd (Luffa acutangula L.) Cultivation in Net Trellis System in Barmer District of Rajasthan, On Farm Trials (OFT’s) were conducted during the kharif season of 2019 and 2020 in farmers participatory mode at three locations in Barmer District of Rajasthan. The experiment consisted of two treatments viz., recommended practice (Net trellis system) and farmers practice (Furrow). Net trellis system had significant increase number of picking (13), fruit length (43.33 cm) and fruit weight (210 g) as compared to farmer’s practice (07, 22.67 cm and 101.5 g) during both the year as well as pooled data. The two year average fruit yields of net trellis system have shown doubled production over farmers practice method. Net trellis system was recorded increase yield for 73.57% (138.06 t/ha) as compared to farmers practice (79.54 t/ha) during both the year as well as pooled data. Similarly, the net returns and B:C ratio also revealed that maximum under net trellis system during both the year as well as pooled data Rs 232790 per hectare and 3.36:1 as compared to farmers practice Rs 89913.5 per hectare and 2.30:1. Net trellis system had significant reduce the damage of pest and soil borne diseases and improve the quality of fruits

DR. BABU LAL JAT

Front line demonstration is an appropriate means for demonstration as well as transfer of improved agricultural innovations to the farming community. Under centrally sponsored schemes on oilseed production technology under NFSM schemes, KVK Athiyasan, Nagaur-I conducted 425demonstrations on mustard covering 180 ha areaduring Rabi, 2015-16to 2019-20. The critical inputs were identified in existing production technology through discussion with farmers and on the basis of soil sampling. Lack of plant protection measures were the predominant identified causes of low productivity of oilseed crop in district Nagaur. In the same sequence the other parameters like technological impact, economical impact and extension gap were analyzed for impact assessment of frontline demonstration (FLDs) on mustard crop. The results of five consecutive years study revealed that the demonstration plots produced on an average 1954 kg/ha mustard grain yield, which was 22.51% higher compared to prevailing farmers practice (1597 kg/ha). The average increase in gross return, net return and cost of cultivation was in the tune of 22.36, 31.08 and 6.43 per cent, respectively. Further, data indicated that the average additional cost of cultivation (Rs. 1435/ha) under integrated crop management demonstrations and has fetched additional net returns of Rs. 12659 per hectare with incremental benefit: cost ratio of 0.41. The average technology gap, extension gap & technological index were found 636kg/ha, 356kg/ha and 24.44percent, respectively. The results clearly indicate the positive effect of FLDs over the existing practices.

DR. BABU LAL JAT

Pulses are well known richest source of vegetable protein and poor man’s food because of its essential component of diet. The frontline demonstrations of chickpea crop was carried out by Krishi Vigyan Kendra, Nagaur-I, Agriculture University, Jodhpur during rabi seasons from 2011-12 to 2019-20 on 178.5 ha area with 382 demonstrations in different clusters of Nagaur district of Rajasthan. The results shows that demonstrations produced on an average 18.02 q/ha grain yield of chickpea, which was 24.18 per cent higher as compared to prevailing farmers practice (14.51 q/ha). The front line demonstrations fetched more average gross returns (Rs.60161/ha), net return (Rs. 37963/ha) and B:C ratio (2.76) with slightly higher investment on cost of cultivation (Rs.1663/ha) as compared to farmers practice. The increase in gross and net returns was in the tune of Rs.11960 and Rs. 10285 per hectare with incremental benefit: cost ratio of 0.33. The average extension gap, technology gap and technology index was 350kg/ha, 608 kg/ha and 25.2 per cent, respectively. It is also observed that majority of the respondent farmers expressed high (51.83%) to the medium (32.72%) level of satisfaction regarding the performance of chickpea under demonstrations

DR. BABU LAL JAT

The experiments were conducted at CCS HAU, Hisar (Haryana) to study the morpho physico-chemical components of resistance to pod borer, Helicoverpa armigera in pigeonpea with different sowing dates. In different four sowing dates, the minimum pod infestation (1.70%) was recorded in (D4) 3rd week of July sown crop, whereas, it was observed maximum (4.54%) in (D2) 1st week of July sown crop. In different pigeonpea varieties, the minimum mean pod infestation (2.45%) was recorded in AL-201, whereas, the maximum mean pod infestation (3.72%) was recorded in Pusa-992. The glandular (type A) and non-glandular (type B) trichomes on pods of top and middle canopy of the plant and pod wall thickness were associated with resistance to H. armigera, whereas, the non-glandular lengthy (type C) trichomes and pod length were associated with susceptibility to this insect. The expression of resistance to H. armigera was also associated with the high amount of fat, phenol and tannin content. Crude protein and total soluble sugar content were responsible for higher pod infestation.

DR. BABU LAL JAT

Field experiments were conducted at CCS Haryana Agricultural University, Hisar during kharif season of 2013 and 2014 to determine the effect of weather parameters on the incidence of pod borer complex on early maturing pigeonpea varieties. The study revealed that the infestation of Helicoverpa armigera and Maruca vitrata started with the onset of bud initiation and reached its peak at flowering stage. The maximum H. armigera larval population (1.83 larvae plant-1) was recorded in 1st week of July sown crop, whereas, the maximum incidence of M. vitrata (21.17 webs plant-1) was recorded in 2nd week of July sown crop. The larval population of H. armigera was significantly and positively correlated with the maximum temperature, followed by minimum temperature.Incidence of M. vitrata was negatively correlated with evening relative humidity and wind speed which was significant at p  0.05 level of significance.

DR. BABU LAL JAT

Experiment was carried out to standardize the artificial diet for mass rearing of Helicoverpa armigera (Hübner) under laboratory conditions. The average length and breadth of egg was 0.51±0.06 mm, 0.46±0.37 mm and 0.52±0.03 mm, 0.48±0.62 on artificial and natural diet. The average length and breadth of first, second, third, fourth and fifth instar larvae was 1.40±0.09 mm, 0.46±0.02 mm and 1.42±0.01 mm, 0.47±0.16 mm and 4.03±0.22 mm, 0.66±0.07 mm and 4.31±0.01 mm, 0.89±0.25 mm and 8.19±0.36 mm, 1.57±0.63 mm, and 10.29±0.72 mm, 1.87±0.91 mm and 18.70±0.44 mm, 2.78±0.040 mm and 20.15±0.03 mm, 3.17±0.55 mm and 26.01±0.19 mm, 4.09±0.39 mm and 27.32±0.027 mm, 5.88±0.69 mm, respectively with the average duration of 2.69±0.32 and 2.54±0.29, 3.77±0.65 and 3.79±0.11, 3.88±0.49 and 3.72±1.23, 5.35±0.55 and 5.72±0.91 and 6.61±0.008, 6.46±1.07 days, respectively on artificial as well as on natural diet. The average length and breadth of adult male and female was 18.01±0.48 mm and 35.09±1.25 mm, 18.51±1.04 mm and 38.11±1.37 mm, 19.00±0.18 mm and 19.10±0.49 mm, 37.75±1.27 mm and 41.23±1.69 mm, respectively. The average pre-oviposition, oviposition and post-oviposition period was 2.52±0.86 and 2.76±0.84 days, 4.93±0.78 and 5.08±0.90 days and 0.65±0.49 and 0.79±0.93 days, respectively. The total life cycle of male and female was 40.50±2.29 and 41.81±1.89 days and 42.59±1.77 and 43.80±1.93 days.

DR. BABU LAL JAT

Host plant resistance is an important tool for minimizing the losses in pigeonpea due to spotted pod borer, Maruca vitrata, which is the most threatening hidden pest of pigeonpea crop. Experiment was carried out to study the morphological and chemical traits in pigeonpea associated with expression of resistance to M. vitrata and their incidence in different sowing dates. The incidence of M. vitrata varied significantly among different sowing dates. Crop sown on D2 (1st week of July) resulted in maximum pod infestation by M. vitrata (13.1%). Minimum pod infestation (2.3%) and (2.9%) was recorded in D4 (3rd week of July) and D1 (3rd week of June) sown crop, respectively. Among different varieties, AL-201 registered lowest pod infestation (4.3%) as compared to Pusa-992 (7.9%). The non-glandular (type A), and glandular (type B) pod trichome density of top, middle and lower canopy of the plant and the pod wall thickness was responsible for the resistance to M. vitrata. Whereas, non-glandular (type C) pod trichomes, pod length, seed width and number of seeds per pod were associated with the susceptibility to spotted pod borer. Expression of resistance to M. vitrata pod infestation was associated with low amounts of crude protein and total soluble sugar and higher amount of fat content, phenol content and tannin content of seed as well as pod wall

DR. BABU LAL JAT

The maximum H. armigera and M. vitrata infestation was recorded in Pusa-992 (3.72% and 7.90%) and in D2 (1st week of July) sown crop with infestation of 4.54 and 13.08 per cent, respectively. Whereas, the infestation of pod fly, M. obtusa was maximum in Manak (2.72%) and 2.58 per cent pod infestation in D2 (1st week of July) sown crop. The infestation of pod borer complex was negatively associated with pod wall thickness (-0.909**, - 0.739*, -0.870*, -0.834*, -0.840*, -0.705* and -0.745*) and non-glandular type A (-0.730*, -0.945**, -0.768*, -0.766*, -0.923** and -0.728*) and (-0.751*, -0.759*, 0.766*, -0.852*, -0.802*, -0.895** and -0.832*) glandular type B (-0.864*, -0.734*, -0.871* and -0.858*) and (-0.729*, -0.705*, -0.730* and -0.845*) density of pod trichomes of top and middle canopy of the plant. Fat (-0.884**, -0.754*, -0.743*, -0.871* and -0.750*) phenol (-0.900** and -0.806*) and tannin (-0.792*, -0.812* and -0.763*) content showed negative correlation with the pod infestation, whereas, crude protein (0.740*, 0.881**, 0.734*, 0.810*, 0.823*, 0.856*, 0.844* and 0.711*) and total soluble sugar (0.738*, 0.792*, 0.793*, 0.898**, 0.714*, 0.816*, 0.888** and 0.819*) showed positive association. Based on the results, it can be concluded that the variety Pusa-992 and Manak was most susceptible to the pod borers.

DR. BABU LAL JAT

Host plant resistance is an important tool for minimizing the losses in pigeonpea due to pod borer, Helicoverpa armigera (Hubner), spotted pod borer, Maruca vitrata (Geyer) and pod fly, Melanagromyza obtuse (Malloch) which are the most threatening hidden pests of pigeonpea crop. Resistant cultivars has a remarkable potential for use in integrated pest management programme. The biophysical, morphological and structural attributes of plants plays an important role in plant defense mechanisms. The glandular (type A and type B) and non-glandular (type A) trichomes on pods of top and middle canopy of the plant and pod wall thickness were associated with resistance to H. armigera, M. vitrata and M. obtusa whereas, the non-glandular lengthy (type C) trichomes and pod length were associated with susceptibility to the said insects. The expression of resistance to H. armigera, M. vitrata, and M. obtusa was associated with the high amount of fat, phenol and tannin content. Whereas, the higher amount of crude protein and total soluble sugar content were responsible for higher pod infestation.

DR. BABU LAL JAT

Eighteen chickpea (Cicer arietinum L.) genotypes were evaluated for yield and their susceptibility reaction against gram pod borer, Helicoverpa armigera Hub. for three consecutive years under natural field conditions during rabi 2010-11, 2011-12 and 2012-13 at Hisar. Among these, maximum grain yield was realized from the genotype H 04-28 (13.00 q/ha) during the season rabi 2010-11 and it was statistically at par with RSG 931 (12.45 q/ha), H 03-56 (11.73 q/ha) and RSG 963 (10.82 q/ha) during rabi 2011-12 and it was statistically at par with GNG 1488 (10.01 q/ha), CSJ 140 (9.07 q/ha) and H 03-56 (8.95 q/ha) during Rabi 2012-13 and it was statistically at par with RSG 888 (8.80 q/ha) and GNG 1591 (7.79 q/ha). However, on the basis of average of three years (2010-11 to 2012-13), the maximum yield was exhibited by the genotype GNG 1488 (9.36 q/ha) followed by RSG 931 (8.95 q/ha), H 04-28 (8.32 q/ha) and H 03-56 (8.20 q/ha). The genotype H 03-56 flowered earliest in 68-71 days and proved the best donor against gram pod borer with PSR 4.7. Minimum larval population was recorded in BG 256 (15.8 l/mrl) and it was followed by GL 25016 (17.5 l/mrl) and H 04-28 (18.5 l/mrl). Minimum per cent pod infestation by H. armigera was recorded in genotype H 01-27 (27.8%) and it was superior over all other genotypes. It was followed by H 03-56 (29.5%), CSJ 140 (30.9%) and GNG 1488 (31.3%). H 01-27 proved least susceptible genotype under natural field condition. The genotype H 03-56 flowered earliest and seemed to be the best as potential donor for pod borer’s tolerance under late sown condition. GNG 1488, RSG 931, H 04-28, H 03-56 and RSG 963 proved promising genotypes for yield and against H. armigera. These genotypes may further be utilized in breeding programmes to develop the high yielding and tolerant cultivars against gram pod borer.

DR. BABU LAL JAT

Toxicity of different insecticides was evaluated against 2nd and 3rd instar larvae of Helicoverpa armigera under laboratory conditions by leaf dipping method. The insecticides viz., thiodicarb 75WP, novaluron 10EC, spinetroam 11.7EC, indoxacarb 15.8EC, quinalphos 25EC, rynaxypyr 18.5SC, emamectin benzoate 5SG and cypermethrin 25EC were tested. Spinetoram was found most effective in managing the 2nd instar larvae of H. armigera and it was followed by novaluron 10EC and indoxacarb 15.8EC as compared to cypermethrin 25EC. Emamectin benzoate 5SG @ 1 x 10-7 to 1 x 10-9 per cent concentrations recorded 100% mortality against 2nd instar larvae and LC50 values for 3rd instar larvae was 0.00000000045%. Insecticides novaluron 10EC, spinetoram 11.7EC and cypermethrin 25EC did not show promising and consistent results against 3rd instar larvae of H. armigera at 24 hrs. The LT50 of novaluron 10EC at 0.00005% concentration was 19.861 hrs and it was 28.144 hrs at 0.000001% against 2nd instar larvae of H. armigera

DR. BABU LAL JAT

Experimental trials were conducted on the compatibility of urea 2% with insecticides of different groups viz., monocrotophos 36SL @ 500 ml/ha, cypermethrin 25EC @ 125 ml/ha, quinalphos 25EC @ 1000 ml/ha and novaluron 10EC @ 375 ml/ha against larval population of Helicoverpa armigera in the field conditions on chickpea cultivar “HC-1” during Rabi season 2011-12 and 2012-13 at CCS Haryana Agricultural University, Hisar (Haryana). These insecticides were found compatible with urea. Minimum larval population of H. armigera was recorded in novaluron 10EC @ 375 ml/ha at 3, 7 and 10 days after spraying. Monocrotophos 36SL @ 500 ml/ha, quinalphos 25EC @ 1000 ml/ha and cypermethrin 25EC @ 125 ml/ha could not provide consistent results against H. armigera. The larval population, pod damage and incidence were statistically at par with insecticides and their combination. No phytotoxicity effect was observed on the leaves with urea application in combination with insecticides. Minimum per cent pod damage (7.3%), maximum grain yield (14.6 q/ha) and monetary returns (` 6265/ha) was realized from novaluron 10EC @ 375 ml/ha plus 2% urea as compared to other treatments.

DR. BABU LAL JAT

Blister beetle, Mylabris pustulata (Thunb.) is a polyphagous pest attacking flowers of pigeonpea (Cajanus cajan), cotton (Gossypium sp), lady’s finger (Abelmoschus esculentus), mungbean (Vigna radiata), urdbean (Vigna mungo), ricebean (Vigna umbellata) etc. throughout the country. Because of its polyphagous feeding nature and hard protective adaptation against insecticides, long term management of this pest with a single molecule is difficult. Therefore, field cum laboratory experiments were carried out for three consecutive cropping seasons during kharif 2008-09, 2009-10 and 2010-11 to find out the persistence and efficacy of different insecticides. It was found that decamethrin 2.8EC was 3334 times toxic with lowest LC50 value (0.0000563) followed by monocrotophos 36SL as compared with endosulfan which was the least toxic with LC50 value (0.1877). Insecticides evaluated for their persistent toxicity during 2009-10 revealed that decamethrin and thiodicarb caused cent per cent mortality of adult blister beetle immediately after spray. At 8th days after spraying, decamethrin caused 60 per cent mortality. Insecticides evaluated for their efficacy during the year 2010-11 revealed that the plants were found free from adult blister beetle population in treatments involving decamethrin and cypermethrin even at ten days after spray. Among all the treatments, spraying of thiodicarb 75WP @ 625 g ha-1 provided the highest grain yield (18.87 q ha-1). Maximum cost-benefit ratio was observed in monocrotophos 36SL, cypermethrin 25EC and decamethrin 2.8EC

DR. BABU LAL JAT

Pod sucking bugs are the key impediments for the low productivity in India. Nymphs and adults of tur pod bug, Clavigralla gibbose (Spinola) suck the cell sap from the pods and cause loss of the grain. Because of its high fecundity and wide host adaptability, it is necessary to check its damage potential. For this purpose, an experiment on bioefficacy of insecticides against this insect was conducted in the laboratory-cum-field conditions on cultivar “Paras” during kharif season 2010-11, 2011-12 and 2012-13. Eight insecticides viz., endosulfan 35EC, monocrotophos 36SL, chlorpyriphos 20EC, quinalphos 25EC, triazophos 40EC, decamethrin 2.8EC, fenvalerate 20EC and cypermethrin 25EC were selected based on their LC50 values against this insect. Among the tested insecticides, cypermethrin proved most toxic (63.94 times) against adults of C. gibbosa followed by decamethrin. Quick knock down effect of decamethrin and fenvalerate was recorded in the field conditions. Therefore, the combinations of decamethrin and quinalphos with DDVP (76 EC) were also tested under field conditions. Cypermethrin, decamethrin plus DDVP, decamethrin and monocrotophos were found effective in managing the C. gibbose population upto 10 days after application. None of the insecticides could manage the bug population below ETL after 14 days of their application. Application of cypermethrin @ 188 mL ha-1 recorded the highest grain yield, highest net monetary returns and highest incremental cost benefit ratio, followed by decamethrin, fenvalerate and monocrotophos. Either of dimethoate or oxydemeton methyl could also manage the bug population

DR. BABU LAL JAT

Whitefly, Bemisia tabaci (Genn.) and yellow mosaic virus disease incidence in mungbean, Vigna radiata (L.) Wilczek is a most serious problem in northern states of India. Bioefficacy of some insecticides and biorational were tested during kharif 2010 to 2011 and 2011 to 2012 at Pulses Research Farm, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar. The results revealed that 30 days after sowing minimum whitefly population was recorded in plots, when seeds were treated with dimethoate 5 ml/kg seeds. At three days after spray application lowest whitefly population (1.6 and 6.4 adults/ cage/ plant) was noted in NSKE 5 per cent sprayed plots. At seven days after spray, NSKE 5 per cent and triazophos 0.04% was the most effective in keeping the whitefly incidence and yellow mosaic virus infection low. Triazophos and NSKE did not help in managing the whitefly population at low level up to 10 days after spray application. Spraying of triazophos 0.04% resulted in higher grain yield as well as net profit. Lower dosage of triazophos 40EC at 0.02% enhanced the whitefly population in 2011 to 2012. However, the maximum incremental cost benefit ratio (1:13.41) was obtained in dimethoate 5 ml/kg seed treated plots followed by seed treatment with dimethoate plus spraying of triazophos 0.04% (1:11.93).

DR. BABU LAL JAT

A 55‑year‑old male patient who has undergone physiotherapy sessions on and off for about 6 months has been admitted to the hospital for the recurrence of back pain along with it he has slight breathing issues while performing day‑to‑day activities, especially in forward bending activity and has been treated with pain killers and muscle relaxants during the medication periods. The patient is feeling better again, but his symptoms continue to worsen. Later, he was referred to a pulmonologist for additional evaluation after presenting with decreased diaphragm excursion, which was causing a disordered breathing pattern. He was treated with medication and referred to additional rehabilitation for low back pain management after a thorough physical examination that also included checking the patient's core and deep breathing muscles Activities of Daily Living (ADL) activities. Keywords: Chronic low back ache, diaphragm excursion and lumbar mobility, diaphragmatic breathing exercise

Nagaraj sibbala