MIHIR B. MODH, PATEL KRUSHIV, PATEL H. K. AND VINOD B. MOR
Ph.D. Scholar, Department of Agronomy, Anand Agricultural University, Anand-388 110 (Gujarat), India
Assistant Research Scientist, Main Forage Research Station ICAR Unit 9 AAU, Anand (Gujarat), India Department of Agronomy, College of Agriculture, Anand Agricultural University, Jabugam-391 155 (Gujarat), India.
*(e-mail: mihirmodh1606@gmail.com)
(Received: 12 December 2024; Accepted: 28 December 2024)

SUMMARY

This study focuses on agronomic management techniques for Bajra Napier hybrid grass (Pennisetum purpureum), which is a well-known fodder grass among farmers because of its high yield potential and nutritional value. Hybrid Napier, which is a hybrid between Bajra and Napier grass, is a sterile, perennial grass that may live for up to two years in the field and grows to a height of 200-300 cm. In order to increase the quantity and quality of green forage, the study examines the significance of nitrogen management, cutting management, and fertiliser levels. According to the study, up to a certain point, rising nitrogen levels were associated with higher concentrations of crude protein and dry matter build-up. Also, as the cutting interval grew, the leaf-stem ratio of green fodders dropped. This decrease was mostly brought on by the fast expansion of the stem fraction with increasing plant maturity. The dairy sector, which has a lack of high-quality feed in many regions, may benefit from this study’s unique insights on the management of Bajra Napier hybrid grass.

Key words: Bajra Napier hybrid, crude protein yield, nitrogen and cutting management

233-239

AKANKSHA RAJ, M. K. SHARMA, K. K. BHARDWAJ AND SATPAL
Department of Soil Science,
Department of G & PB (Forage Section) CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: akankshakirty09@gmail.com)
(Received: 20 September 2024; Accepted: 3 December 2024)

SUMMARY

Sorghum (Sorghum bicolor (L.) Monech) is a cereal grass that belongs to family Poaceae and is a widely cultivated as food and fodder crop. It is moderately salt tolerant crop; widely adaptive to various edapho-climatic conditions and provides digestible, palatable and nutritious fodder. India is home to 536.76 million livestock and is facing green and dry fodder deficit to the tune of 11.4 and 23.2 %, respectively. The crop is very exhaustive from nutrient point of view; and it removes 28.0-3.5-20.0 kg N-P-K per tonne of dry matter. The recommended dose of NPK for forage sorghum is 75 to 150 kg N, 30 to 50 kg P₂O₅ and 30 to 50 kg K₂O per hectare which vary from single cut to multicut sorghum. These nutrients can be supplied through inorganic sources (synthetic fertilizers) and organic sources (FYM, vermicompost, bio-fertilizers, and manure). Continuous application of fertilizers can disturb the soil health in terms of soil structure, micro-flora and fauna. To maintain soil health, it is required to supply nutrients through organic sources alone or in combination with inorganic sources which improves physical, chemical and biological properties of soil and also adds nutrients to soil for growth and development of the crop. In physical properties, improvement of soil structure, porosity, chemical properties in terms of organic carbon content, nutrient status of soil and in biological property enhancement in the soil microbial population is needed for sustenance. But the sole nutrient requirement of the crop is not fulfilled due to the huge demand of the organic sources which it not possible in this era of increasing population. That’s why the combined application inorganic and organic source of nutrients improves the soil physico-chemical and biological properties and fulfills the nutrient requirement of the crop along with economical feasibility. Different combination of organic and inorganic nutrient sources like application of RDF along with bio-fertilizers, 100% dose of RDF through inorganic fertilizer+25% RDF through organic source, 75% dose of RDF through inorganic fertilizer+25% RDF through organic source, 50% dose of RDF through inorganic fertilizer+50% RDF through organic source have been studied and found to improve the soil health along with quality and yield advantage as compared to the sole application of inorganic fertilizers. However, the combinations are location, crop and variety specific and depend upon the available nutrients in the soil along with organic carbon content in sorghum.

Key words: Sorghum, organic nutrient, fertilizers, soil health, fodder yield and quality

240-248

ANSHU BAJAJ AND SURENDER K. PAHUJA
Department of Biotechnology and Molecular Biology,
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
Department of Plant Breeding, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: pahujask66@gmail.com)
(Received: 20 September 2024; Accepted: 3 October 2024)

SUMMARY

Guar is a legume crop resistant to drought and susceptible to diseases like bacterial blight and alternaria leaf spot. Its a major crop in various developed and developing countries. It has been producing guar gum for industrial uses. In the present investigation bacterial blight resistant QTL were identified using RAPD markers. Statistical analysis was done using Mapmanager QTX software. DNA estimation was done on uv spectrophotometer, further analysed by gel electrophoresis for quality. Resistant and susceptible genotypes were used to generate F2-3 population used further for linkage map construction for the disease bacterial blight. F2-3 population was undertaken for disease percent survival in contrast to molecular marker analysis for the disease. Polymorphism studies were undertaken among molecular markers, molecular mapping was done and distances were calculated at p=0.05 markers linked to each other for disease were selected Molecular mapping was done with three markers covering a map distance of 43.9 cM. Two markers (D1 &AB7) were found linked to each other and were grouped together in group 2 whereas L19 was found unlinked to other markers and contributing to disease resistance. These QTLs can be used for creation of superior genotypes of clusterbean using molecular breeding techniques for resistance to bacterial blight.

Key words: Bacterial blight, QTLs, Molecular mapping, Clusterbean, Polymorphism

249-257

RAJESH KUMAR ARYA, KRISHAN KUMAR, GANESH KUMAR KOLI AND AJAY VERMA*
MAP Section, Department of Genetics and Plant Breeding
CCS Haryana Agriculture University, Hisar-125004 (Haryana), India
*ICAR-Indian Institute of Wheat and Barley Research, Karnal 132001 (Haryana), India
*(e-mail: verma.dwr@gmail.com)
(Received : 02 November 2024; Accepted : 27 December 2024)

SUMMARY

In the present study biplot analysis was carried by using the 21 collections of kasni evaluated for 2016-17, 2017-18 and 2019-20. The results revealed increase in plant height for all the collections as observed from positive values of % change. Recent adaptability measures PRVG and HMPRVG settled for HCI-2, HCI-17, and HCI-3 as far as height of collections are concerned. Maximum change in number of branches had expressed by HCI-20, followed by HCI-19, HCI-17 while least increase exhibited by HCI-21, HCI-9. As per PRVG desirable collections would be HCI-4, HCI-11, and HCI-17 whereas HMPRVG measure settled for HCI-4, HCI-5, and HCI-6. Increase and decrease in seed yield per plot observed for the collections as only 05 collections had been maintained increase in seed yield per plot. Geometric Adaptability Index had expressed suitability of HCI-16, HCI-20, and HCI-19 whereas Harmonic mean measure found HCI-16, HCI-20, and HCI-19 as desirable ones. Biplot analysis observed 83.2% variation in plan height had been accounted by first two significant principal components with 58.6% and 24.6% of respective contributions. HCI-16, HCI-17, HCI-3, HCI-11 accounted by more values for first component whereas, contributions of HCI-7, HCI-20, HCI-6 as observed in second component. More than 91% of the total variation for branches per plant had been accounted by first two significant principal components with 59.3% and 31.7% of respective contributions. Mean, PRVG, GAI, HMPRVG were larger contributors for first while % change, coefficient of variation, 2017-18 & 2016-17 values for the second principal component. Nearly 92.4% of the total variation in seed yield per plot had been accounted by first two significant principal components with respective shares of 69.5% and 22.9%. Collections at vertex HCI-16, HCI-7, HCI-21, HCI-17, and HCI-20 in the biplots have the longest distance from the origin.

Key words: Kasni (Cichorium intybus), germplasm, bioplot analysis

258-266

ANIL, SATPAL, NEELAM, K. K. BHARDWAJ, SARITA DEVI, N. KHAROR, PRATIBHA BHARTI AND SACHIN KUMAR
Department of Agronomy, Department of Genetics & Plant Breeding (Forage Section),
Department of Soil Science, Department of Botany & Plant Physiology,
Department of Mathematics & Statistics
CCS Haryana Agricultural university, Hisar-125004 (Haryana), India
*(e-mail: anilgangwa134@gmail.com)
(Received : 1 November 2024; Accepted : 26 December 2024)

SUMMARY

A field experiment was conducted to assess the effect of foliar application of nitrogen- based formulations on quality and yield of fodder sorghum during summer 2022 at Forage Section Research Farm, Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar (India). The experiment was laid out in randomized block design with fourteen treatments and replicated thrice. Among all the treatments, maximum green fodder yield (445.4 q/ha) was recorded with the application of T₁₄ (nano-urea spray @ 0.6% at 35 DAS and 50 DAS), which was on a par with T₁₁, T₁₂ and T₁₃. At harvest, significantly higher nutrient uptake (N, P and K) 202.79, 25.72, 161.81 kg/ ha and crude protein 9.94 % were recorded with foliar application of nano-urea @ 0.6% at 35 DAS (days after sowing) and 50 DAS, which was on a par with T₁₁ (one nano-urea spray @ 0.4% at 35 DAS), T₁₂ (two nano-urea spray @ 0.4% at 35 and 50 DAS) and T₁₃ (one nano-urea spray @ 0.6% at 35 DAS) when RDF (recommended dose of fertilizer) was also applied. The HCN content across all treatments was non-significant at 30 DAS. However, the lowest HCN value (89.56 ppm) was observed in the treatment with absolute control (No RDF).

Key words: Sorghum, fodder yield, foliar spray, nano-urea, nutrient uptake, HCN and proline content

267-271

GREESHMA U., USHA C. THOMAS, SHALINI PILLAI P., G. GAYATHRI, SAFEER M. M. AND PRATHEESH P GOPINATH
Department of Agronomy, College of Agriculture, Vellayani (Kerala), India
Instructional Farm, College of Agriculture, Vellayani (Kerala), India
Department of Agronomy, College of Agriculture, Vellayani (Kerala), India
AICRP on Forage crops & Utilization, COA, Vellayani (Kerala), India
Instructional Farm, College of Agriculture, Vellayani (Kerala), India
Department of Agrl. Statistics, College of Agriculture, Vellayani (Kerala), India *(e-mail: greeshmaudayan96@gmail.com)
(Received: 12 November 2024; Accepted: 30 December 2024)

SUMMARY

A field experiment was conducted at Instructional farm, College of Agriculture, Vellayani, Thiruvananthapuram, Kerala during the period March 2023 to August 2024 to standardize the irrigation levels for popular bajra napier hybrid varieties in Kerala. The experiment was laid out in split plot with 4 irrigation levels as main plot and 3 varieties as subplot, replicated thrice. The treatment comprised of 4 irrigation levels (i1 – IW/CPE 1.0, i₂ – IW/CPE 0.8, i₃ – IW/CPE 0.6 and i₄ – Rainfed) and 3 varieties (v₁ – Susthira, v₂ – Suguna, and v₃ – CO-5. Results revealed that irrigation at IW/CPE 1.0 produced the tallest plants (198.02 cm), highest tiller number (17.01 per hill), and largest leaf area (232.04 cm²), significantly improving GFY and DFY. Variety CO-5 outperformed others, achieving the highest total GFY (186.74 t/ha) and DFY (39.05 t/ha). Interaction effects showed optimal yields with CO-5 under IW/CPE 0.8 (206.06 t/ha GFY) and IW/CPE 1.0 (52.46 t/ha DFY). The study concluded that CO-5 cultivated with IW/CPE 1.0 irrigation is ideal for maximizing fodder productivity in southern Kerala, ensuring consistent feed availability and efficient water use.

Key words: Bajra napier hybrid, fodder, irrigation level, variety

272-277

SATPAL, SATYAJEET, SURESH KUMAR, NEELAM, K. K. BHARDWAJ AND ANIL KUMAR
Department of Agronomy,
Regional Research Station, Bawal (Rewari)
Department of Soil Science,
Department of Agricultural Meteorology, CCS Haryana Agricultural University, Hisar, 125004 (Haryana), India
*(e-mail: satpal.fpj@gmail.com)
(Received: 2 October 2024; Accepted: 25 December 2024)

SUMMARY

The field investigation was conducted at Forage Research Farm, CCS HAU, Hisar (India) during Kharif 2021 and 2022. The soil of the experimental field was slightly alkaline in reaction, low in organic carbon and available nitrogen, medium in available phosphorus and potassium. The experiment was laid out in split-plot design with three sowing dates (June 10, June 25 and July 10) and two crop geometries (30 cm × 10 cm and 45 cm × 10 cm) in main plots and five fertilizer levels (Control – No N and P, 40 kg N+20 kg P₂O₅/ha, 60 kg N+30 kg P₂O₅/ha, 80 kg N+40 kg P₂O₅/ha and 100 kg N+50 kg P₂O₅/ha) in sub-plots with three replications. Among sowing dates, the maximum green fodder yield (39.62 and 44.06 t/ha) and dry matter (10.90 and 12.38 t/ha), respectively during first and second year were recorded in the crop sown on July 10, which was at par to that sown on June 25. Maximum B:C was obtained in the fodder maize sown on June 25 (2.16 and 2.40) being at par with July 10 sowing (2.09 and 2.34). Among crop geometries, significantly highest yield of green fodder and dry matter, (39.48 and 43.96, 10.86 and 12.35 t/ha, respectively during first and second year) were recorded in the crop sown with 30 cm × 10 cm geometry. Numerically better B:C was achieved with crop geometry of 30 x 10 cm crop geometry, although it was at par with the crop geometry 45 cm x 15 cm. With increasing NP fertilizer dose, fodder maize responded up to the maximum level of 100 kg N+50 kg P₂O₅ ha-1 for yield (46.02 and 12.80 t/ha, two year mean green fodder and dry matter, respectively) were on a par with 80 kg N+40 kg P₂O₅/ha level. Maximum B:C (2.30 and 2.54 during first and second year, respectively) was fetched with the fertilizer application of 80 kg N+40 kg P₂O₅/ha level. It can be concluded that fodder maize crop may be sown from June 25 to July 10 with a spacing of 30 cm x 10 cm and fertilizer application 80 kg N+40 kg P2O5 per hectare for high fodder yield and quality along with economical production.

Key words: Fodder maize, fodder yield, per day productivity of fodder and economics

278-283

NIVEDITHA K. DIVAKARAN AND USHA C. THOMAS
PG Scholar, Department of Agronomy, College of Agriculture, Vellayani, (Kerala) India
Professor(Agronomy) and Head, Instructional farm, College of Agriculture, Vellayani, (Kerala) India
*(e-mail : nivedithakdivakaran@gmail.com)
(Received: 10 December 2024; Accepted: 29 December 2024)

SUMMARY

The study entitled “Standardisation of nitrogen fertiliser dose and spacing in fodder oats at high ranges of Kerala” was undertaken during Rabi 2021-22 at Wayanad Eastern Plateau with the objective to find out the optimum nitrogen dose and spacing level for fodder oat cultivation. The experiment was done in randomized block design with nine treatments replicated thrice. Treatments consisted of two factors viz., row spacing (S) and nitrogen dose (N) at three levels each viz., s₁ (15 cm), s₂ (25 cm), s₃ (35 cm) and n₁ (60 kg N/ha), n₂ (90 kg N/ha), n₃ (120 kg N/ha) respectively. The results of the study revealed that, s₃n₃ (35 cm, 120 kg N/ha) recorded the tallest plant and a greater number of tillers/hill. In case of GFY (green fodder yield) and DFY (dry fodder yield), s₁n₃ recorded the highest yield GFY and DFY. Nitrogen dose n₃(120 kg N/ha) recorded the highest chlorophyll content and crude protein content. Moreover, application of 120 kg/ha nitrogen at a spacing 15 cm had given the highest net income (Rs. 58645.92/ha) and BC ratio (1.87).

Key words: Chlorophyll, crude protein, fodder, minerals, palatability

284-287

SATYAJEET, SATPAL, JITENDER KUMAR, AMARJEET NIBHORIA AND MEHAK NAGORA
CCS HAU, Regional Research Station, Bawal-123501 (Haryana), India
Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: sjeet.hau@gmail.com)
(Received: 2 December 2024; Accepted: 26 December 2024)

SUMMARY

A field experiment was carried out at CCS HAU, Regional Research Station, Bawal during summer 2020 and 2021 laid out in split plot design with three replications, comprised of three forage crops (sudan grass, sorghum and maize) in main-plots and four nutrient combinations (RDF, RDF + Foliar spray of zinc sulphate (0.5%) + urea (2%) at 30, 45 DAS and 25 days after first cut, RDF + Foliar spray of ferrous sulphate (0.5%) + urea (2%) at 30, 45 DAS and 25 days after first cut and RDF + Foliar spray of zinc sulphate (0.5%) + ferrous sulphate (0.5%) + urea (2%)) at 30, 45 DAS and 25 days after first cut) in sub-plots. Soil of the experimental site was sandy loam in texture low in N, P and medium in K, with slightly alkaline in reaction (pH – 8.2). Among the fodder crops the green and dry fodder yield of maize was significantly higher over sudan grass and sorghum which was 22.1 and 22.2 % higher over sorghum and 10.4 and 10.5 % higher over sudan grass in respect of green and dry fodder, respectively. Among foliar nutrient management, RDF + Foliar spray of zinc sulphate (0.5%) + ferrous sulphate (0.5%) + urea (2%) at 30, 45 DAS and 25 days after first cut recorded significantly higher green fodder yield over rest of the treatments. Similar trend was found in case of dry matter yield, N content, crude protein content and crude protein yield. Net return in maize was higher to the tune of 31.6 and 74.1 % over sudan grass and sorghum, respectively. The B:C ratio was highest in maize (1.72) over sudan grass (1.54) and sorghum (1.42). Among foliar nutrient management higher Net return of Rs. 26273/ha was incurred in RDF + Foliar spray of zinc sulphate (0.5%) + ferrous sulphate (0.5%) + urea (2%) at 30, 45 DAS and 25 days after first cut over rest of the treatments. Similar trend was found in case of B:C ratio (1.69). Significantly higher available P, Zn and Fe content was found under RDF + Foliar spray of zinc sulphate (0.5) + ferrous sulphate (0.5%) + urea (2%) at 30, 45 DAS and 25 days after first cut over rest of the treatments, except Zn and Fe where it was at par with alone application of Zn and Fe, respectively.

Key words: Forage crops, foliar nutrition, yield, quality, and economics

288-291

SOWJANYA JAKKAMPUDI AND SHARU S. R.
College of Agriculture, Kerala Agricultural University,
Vellayani, Thiruvananthapuram- 695 522
*(e-mail: sowjanyajakkampudi@gmail.com)
(Received: 15 November 2024; Accepted: 30 December 2024)

SUMMARY

The present investigation entitled “Effect of Spacing and Nutrient Management on yield, plant nutrient uptake and soil nutrient availability in fodder cowpea intercropped in coconut garden” was conducted during Rabi 2022 at Instructional Farm, College of Agriculture Vellayani to standardize the spacing and nutrient requirement for fodder cowpea intercropped in coconut garden. The experiment was laid out in randomized block design with two factors, namely spacing (S) [s₁– 20 cm × 15 cm, s₂– 30 cm × 15 cm, s₃– 40 cm × 15 cm and s₄– broadcasting)] and nutrient levels (N) [n₁-75% POP (18.75: 45: 22.5 kg N: P₂O₅: K₂O/ha), n₂ 100% POP (25: 60: 30 kg N: P₂O₅: K₂O/ha), n₃ 125% POP (31.25: 75: 37.5 kg N: P₂O₅: K₂O/ha)] with three replications. The experimental plot was red sandy loam, acidic in reaction, medium in organic carbon, low in available nitrogen, high in available phosphorus and medium in available potassium status. The treatment, s₂ recorded the highest, green fodder yield per plant, dry fodder yield per plant, per day productivity and N P K uptake. The treatment n₃ resulted in higher, green and dry fodder yield per plant, per day productivity and N P K uptake by plant. The treatment combination, s₂n₃ recorded the highest per day productivity, N uptake and P uptake.

Key words: Fodder cowpea, nutrient management, green fodder yield per plant, per day productivity and nutrient uptake

292-297

SARITA DEVI, SATPAL, GAYATRI KUMARI AND PANKAJ
Department of Botany and Plant Physiology, CCS Haryana Agricultural university, Hisar-125004 (Haryana), India
Department of Genetics and Plant Breeding (Forage Section), CCS Haryana Agricultural university, Hisar-125004 (Haryana), India
*(e-mail: devisaritaa@gmail.com)
(Received: 12 November 2024; Accepted: 26 December 2024)

SUMMARY

Water scarcity is a major agricultural threat, impacting diverse crops like oats. To understand the mechanism that how oats cope with moisture stress at the morpho-physiological level is crucial for developing resilient cultivars and adapting agricultural practices. This study aimed to evaluate the morpho-physiological parameters of 14 Avena sativa (oat) varieties (OS 7, OS 346, OS 377, OS 403, OS 405, OS 424, OS 427, HFO 529, HJ 8, HFO 114, HFO 611, HFO 607, HFO 707 and HFO 906) under varying levels of moisture stress. Different oats varieties were subjected to four different levels of moisture saturation (100, 75, 50 and 25%). Parameters studied were shoot and root length, fresh weight (FW) and dry weight (DW) of shoot and root, anthocyanin, flavonoids, chlorophyll index and nitrogen balance index (NBI). Based on two-year study, significant variation was observed among the 14 oat varieties under moisture stress conditions. Among varieties HFO 611, HJ-8, OS 424 and OS 377 were found promising on the basis of better morpho- physiological performance (higher value of dry weight of shoot and root, chlorophyll index, nitrogen balance index, anthocyanin) under moisture stress conditions.

Key words: Oat, moisture stress, drought tolerance, chlorophyll, anthocyanin

298-303

T. B. PATIL, S. A. LANDGE, K. S. PAGIRE, Y. S. SAINDANE, N. K. BHUTE AND S. K. GHODKE
Research Scholar, PGI, Department of Entomology, MPKV, Rahuri (Maharashtra), India 2Assistant Professor, AICRP on Forage Crops and Utilization, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (Maharashtra), India
Assistant Professor, Department of Entomology, College of Agriculture, Gadchiroli, Dr. PDKV, Akola-442 605 (Maharashtra), India
Assistant Residue Analyst, Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (Maharashtra), India
Assistant Entomologist, Cotton Improvement Project, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (Maharashtra), India
Assistant Professor of Soil Science, Interfaculty Department of Irrigation Water Management, PGI, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (Maharashtra), India
*(e-mail: landge_sandip@rediffmail.com)
(Received: 5 December 2024; Accepted: 30 December 2024)

SUMMARY

An experiment entitled was conducted at All India Coordinated Research Project on Forage Crops and Utilization, Mahatma Phule Krishi Vidyapeeth, Rahuri during Kharif 2023. During the course of study six biopesticides and three intercrops were evaluated against fall armyworm on fodder maize. The results of field experiment revealed that, entomopathogenic fungi, Metarhizium anisopliae @ 5 g/L proved most effective against Spodoptera frugiperda and significantly reduced the per cent plant infestation up to 27.78 % with highest fodder yield 468 q/ha followed by Beauveria bassiana@ 5 g/L (32.10%). Next effective treatments were azadirachtin (10000 ppm) (40.81%) and NSKE 5 % @ 50 g/L (43.47%) but were at par with each other. Intercropping with legumes such as field bean (53.59%), cowpea (54.52 %) shows that it helps to reduce fall armyworm infestation than sole maize, also it increased the natural enemies population such as coccinellids, spiders in maize. While, intercropping with bajara (58.79%) was least effective treatment with heavy infestation (65.68%) after untreated control.

Key words: Maize, fall armyworm, biopesticides, Intercrops

304-308

BAJRANG LAL SHARMA, DALIP KUMAR, NARESH KUMAR, RAJEEV AND SATPAL
Department of Genetics and Plant Breeding (Forage Section)
Department of Entomology,
Department of Agricultural Meteorology CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
*(e-mail: bl_antela@rediffmail.com)
(Received: 2 November 2024; Accepted: 22 December 2024)

SUMMARY

Twenty-six high bio mass (HBM) and brown mid rib (BMR) genotypes of forage sorghum were screened against shoot fly, Atherigona soccata Rondani and pink stem borer Chilo partellus Swinhoe during Kharif, 2020 at Forage Section Research Farm, CCS HAU, Hisar (India). The data on different morphological traits viz. leaf glossiness and seedling vigors were recorded on visual score basis, as these two characters play important role in resistance against the insect pests. Leaf glossiness of HBM genotypes viz. SPV 2811, CSH 13 and SPV 2810 was comparable to the resistant checks (IS 18551 and IS 2312) but the genotype CSH 22SS, DJ6514 and Swarna were non-glossy. Among brown midrib genotypes, CSV 21F, CSV 35F and IS 18551 (RC) were lowest (1.7) in seedling vigor scores, indicating that these were more vigorous. Among HBM genotypes, SPH 1990, SPV 2812 and SPH 1798 were good performers against stem borer in terms of percent dead hearts.

Key words: Atherigona soccata, Chilo partellus dead heart, screening, sorghum

309-313

PARVESH ANTIL, SUNDEEP KUMAR ANTIL, ANIL KUMAR AND DHARMENDER JANGRA
Department of Basic Engineering, COAE&T, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India KVK, Sonipat-131001 (Haryana), CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India Department of Farm Machinery and Power Engineering, COAE&T,
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
Vivekananda Institute of Professional Studies-Technical Campus, New Delhi
*(e-mail: sundeepkumar@hau.ac.in)
(Received: 2 November 2024; Accepted: 30 December 2024)

SUMMARY

The use of fibrous composites as storage box material in agricultural machinery reduces the machine’s weight and improves fuel efficiency. The composite’s better strength-to-weight ratio opens up broad prospects for increasing productivity and sustainable development of the agricultural sector. However, the abrasive environment in farming fields exposes these composites, causing their outer surface to diminish. The present paper deals with the parameters affecting the wear of these agricultural components using a pin-on-disk wear test setup. The experimentation was planned as per response surface methodology based Box-Behnken design, keeping load, surface, and time as process parameters and wear loss as response parameters. The results revealed that load had the greatest influence on the surface wear of the components followed by surface and time. The A Model F-value of 24.91 indicates that the model is statistically significant. Only a 0.02% probability exists for an F-value of this magnitude to arise by random variation. R-square value was found as 96.97 %, which indicates a good relationship between observed data and fitter values.

Key words: Fibrous composites, optimization, response surface methodology, wear, agricultural machinery

314-319

ANIL KUMAR, SUNDEEP KUMAR ANTIL VIJAYA RANI, PARVESH ANTIL, RAKESH KUMAR AND RAJENDER KUMAR
COAE&T, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
KVK, Sonipat, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
RRS, Kaul, CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: anilsaroha@hau.ac.in)
(Received: 5 December 2024; Accepted: 31 December 2024)

SUMMARY

A newly developed straw combine suitable for paddy and wheat crop was evaluated in PUSA – 1121 paddy variety for its performance and retrieval of paddy straw. The straw combine was evaluated at three levels of moisture content (20, 35 and 50 %) and three levels of cylinder speed (29.6, 31.4 and 33.2 m/s) and forward speed (1.7, 1.9 and 2.1 km/h) in terms of field capacity, field efficiency, fuel consumption, straw split and straw size. The response surface methodology (RSM) was adopted for multi response optimization of straw combine parameters. Based on results obtained through RSM, it was found that the optimum combination for harvesting of paddy variety PUSA– 1121 was found to be moisture content of 20 %, forward speed of 1.91 km h–1 and cylinder speed of 33.20 m/s.

Key words: Cylinder speed, field capacity, forward speed, fuel consumption, moisture content

320-329