Volume Archives: Vol. 49 No 2 (September 2023)

UTILIZATION OF DELAYED HARVESTED HYBRID NAPIER IN SILAGE

S. V. DAMAME*, V. B. SHINDE AND S. A. LANDGE
AICRP on Forage Crops & Utilization,
Mahatma Phule Krishi Vidyapeeth, Rahuri-413722 (Maharashtra), India
(e-mail: shivajidamame@gmail.com)
(Received : 17 August 2023; Accepted : 16 September 2023)

SUMMARY

The present experiment was conducted to utilize delayed harvested hybrid napier cv. Phule Gunwant for silage making. The green forage of hybrid napier (BxN) harvested late at 60 and 70 days was utilized to prepare silage with 2 % and 3% jaggery. The physical and nutritional parameters of silage such as pH, colour, flavour and fodder quality parameters viz., dry matter, crude protein, ammonical-N, acid detergent fibre, neutral detergent fibre and in vitro dry matter digestibility were compared with the silage prepared from maize and sorghum forage. Although, maize and sorghum silage exhibited superior silage quality, the silage prepared from hybrid napier harvested at 70 days + 2% jiggery was of sufficiently good quality as it exhibited acceptable light yellow colour, light acidic smell with pH, ammonical-N, dry matter, crude protein, acid detergent fibre, neutral detergent fibre content and in vitro dry matter digestibility.

Key words: Silage, BxN hybrid, dry matter, nutritional quality, ammonical-N

184-187

EVALUATION OF SOIL PROPERTIES UNDER FODDER BASED AGROFORESTRY SYSTEM – A REVIEW

K. K. BHARDWAJ*, SATPAL, S. K. SHARMA, VISHAL GOYAL, RAJNI YADAV, PANKAJ, GARIMA DAHIYA AND SONIA DEVI
Department of Soil Science,
Department of Genetics & Plant Breeding (Forage Section),
Krishi Vigyan Kendra, Jhajjar
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: krishansoils@gmail.com)
(Received : 1 August 2023; Accepted : 20 September 2023)

SUMMARY

Among the various benefits of agroforestry system, the most important one is improvement in soil fertility. In addition to this, mitigation of the soil carbon loss by erosion control, nutrient replenishment of the nutrients which are removed by biomass harvest and improving microbial population. There was less effect on soil bulk density but infiltration rate, texture, hydraulic conductivity and other soil physical properties along with soil pH and EC improved in the fodder based agroforestry system as compared to sole crop. The interpretation of the available results showed higher amount for organic carbon, available nutrients than sole cropping at different depths. Different tree based system significantly affected the DTPA extractable micronutrients (Zn, Mn, Cu and Fe) contents in soil. Mineralization increased significantly by incorporating trees with fodder crops. The microbial biomass C and urease activity, dehydrogenase and phosphatase activity increased and the enzymatic activities were found highest under tree with crops as compared to devoid of tree treatment. Hence, it may be concluded that Soil physical, chemical, and biological properties are effectively improved by adopting the fodder based agroforestry practices.

Key words: Fodder based agroforestry system, soil properties, soil fertility

149-154

IRON DEFICIENCY IN SOILS AND ASSOCIATED BIOCHEMICAL CHANGES IN FORAGE CROPS – A REVIEW

PUNESH SANGWAN, VINOD KUMAR*, RITU, KIRAN, SUNIL KUMAR, TAMANNA, SUSHIL NAGAR AND NEERAJ KHAROR
Department of Biochemistry, College of Basic Sciences & Humanities, CCS HAU, Hisar -125004 (Haryana), India Department of Genetics & Plant Breeding (Forage Section), CCS HAU, Hisar-125004 (Haryana), India Department of Botany, CRM Jat College, Hisar -125004 (Haryana), India
Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendergarh (Haryana), India Current affiliation: FMD Laboratory, Department of Veterinary Microbiology, LUVAS,
Hisar -125004 (Haryana), India
(e-mail: sangwan.vinod@hau.ac.in)
(Received : 1 July 2023; Accepted : 30 July 2023)

SUMMARY

Iron (Fe) is an important micronutrient for plant growth and it has several functions. A large portion of agricultural soils around the world has low Fe-availability to plants due to its unavailable forms or varying nature of soils including calcareous soils. The deficiency of Fe led to adverse effects on plant growth and agricultural productivity. It has got recent attention and molecular, biochemical, physiological responses of plants under Fe deficiency is being reported in some crops. To understand the mechanism of Fe deficiency tolerance, this review provides an overview of such studies.

Key words: Fe-deficiency, calcareous soils, phytosiderophores, Superoxide dismutase

155-160

PER SE PERFORMANCE AND HETEROSIS ESTIMATION IN SORGHUM FOR GRAIN YIELD AND SHOOT FLY RESISTANCE ATTRIBUTES

R. S. SOLANKI*, R. A. GAMI*, KAPIL K TIWARI, R. N. PATEL, L. D. PARMAR AND P. S. PATEL
Department of Genetics and Plant Breeding, CPCA, SDAU, Sardarkrushinagar-385506 (Gujarat), India
Center for millets research, SDAU, Deesa- 385535 (Gujarat), India
Bio-Science Research Centre, SDAU, Sardarkrushinagar-385506 (Gujarat), India
Potato Research Station, SDAU, Deesa- 385535 (Gujarat), India
Centre for Oilseeds Research, SDAU, Sardarkrushinagar-385506 (Gujarat), India
Department of Agricultural Entomology, CPCA, SDAU, Sardarkrushinagar-385506 (Gujarat), India
*(e-mail: ramangami@gmail.com)
(Received : 19 August 2023; Accepted : 15 September 2023)

SUMMARY

Fifteen hybrids derived from half-diallel mating design using six parents, including standard check GJ 43 were evaluated for per se performance and magnitude of heterosis to examine yield and attributing traits in sorghum. The per se performance of parents revealed that the parent GNJ 1 appeared numerically higher for grain yield per plant and 1000-grain weight. The parents SWARNA and DJ 6514 were found for days to flowering. Hybrids IS 18551 × SWARNA, SWARNA × GNJ 1 and GJ 43 × GNJ 1 recorded maximum total plant height and grain yield per plant. While the parents IS18551 and IS2205; the cross combination IS 18551 × IS 2205 were showed shoot fly resistance feature. The analysis of variance indicated that the genotypes used in the study were significant for all 12 characteristics, revealing the presence of genetic diversity in the genotypes. The mean sum of squares due to genotypes, parents, hybrids and parents vs. hybrids was highly significant found for all characteristics except the mean sum of squares due to parents vs hybrids for the seedling glossiness, days to flowering and total plant height, which indicated that sufficient amount of heterosis was appeared in crosses due to yield attributing characteristics and shoot fly resistance traits. The study of the most prominent heterotic hybrids for grain yield per plant viz., GJ 43 × GNJ 1, SWARNA × GNJ 1 and IS 18551 × SWARNA evinced significant and positive heterosis over better parent and standard check GJ 43 for yield and shoot fly resistance attributes, respectively.

Key words: Sorghum, Shoot fly, heterosis, heterobeltiosis, parents vs. hybrids, per se performance

161-167

STUDY OF GENETIC DIVERSITY OF ECONOMIC TRAITS IN BARLEY (HORDEUM VULGARE L.)

NARESH, K. D. SEHRAWAT* AND YOGENDER KUMAR
Department of Genetics and Plant Breeding,
CCS Haryana Agricultural University, Hisar 125004 (Haryana), India
*(e-mail:krishanssehrawat@gmail.com)
(Received : 18 January 2023; Accepted : 10 September 2023)

SUMMARY

A number of fourty five genotypes of barley and six checks were evaluated in augmented design. The non-hierarchical Euclidean cluster analysis grouped the genotypes including checks into seven different clusters. Maximum number of genotypes were centered in cluster VI and VII, nine each. Clusters III, IV and V collected eight genotypes in each group. Lowest number of genotypes were studied to be in cluster II i.e. four. The highest intra-cluster distance was recorded for cluster II, indicating the existence of higher genetic variability within this cluster. The maximum inter cluster distance was recorded between cluster IV and cluster V, pointing to the higher genetic diversity for genotypes included in these clusters. The genotypes viz., IBYT-18-4, IBYT-18-21, IBYT-18-8, IBON- 18-46 and 5th GSBYT-18-6 were scored to be promising for their further exploitation in barley breeding programmes.

Key words: Barley, clusters, euclidean distance, genetic divergence

168-172

EFFECT OF BIO-INOCULANTS ON CROP GROWTH, YIELD AND SEED QUALITY ATTRIBUTES OF ALFALFA (MEDICAGO SATIVA L.) CV. RL-88

ARVIND KUMAR, P. R.*, CHANNAKESHAVA, B. C ASHOK SURWENSHI, PRASHANT MANGALGIKAR AND SIDDARUDH SINGADI
Department of Seed Science and Technology, GKVK, Bangalore (Karanataka), India
Department of Seed Science and Technology, GKVK, Bangalore (Karanataka), India
Department of Plant Physiology, UHS, Bagalkote (Karanataka), India
Department of Agriculture Entomology, UHS, Bagalkote (Karanataka), India
Department of Seed Science and technology, UAHS, Shivamogga (Karanataka), India
*College of Horticulture, Bidar, UHS, Bagalkote (Karanataka), India
*(e-mail: arvindkrathod09@gmail.com)
(Accepted : 24 August 2023; Accepted : 20 September 2023)

SUMMARY

An experiment was carried out at the department of Seed Science and Technology (E-block) Eastern Dry Zone of College of Agriculture, UAS, GKVK, Bengaluru to find out the efficacy of bio- inoculants seed treatments on crop growth, seed yield, and quality attributes of alfalfa. The results on growth parameters viz., the highest plant height (87.33 cm and 84.50 cm), chlorophyll content (42.57 and 48.59 SPAD value), the total number of pods per plant (149.67 and 154.56), number of filled seeds per pod (4.11 and 5.33), seed yield (180.54 and 256.15 kg ha-1) and seed test weight (3.246 and 3.340 g) recorded in seed treated with a recommended dose of fertilizer (RDF) 20:100:40 NPK kg ha-1 + Pseudomonas fluorescens + FYM treatment. Whereas the number of nodules per plant (4.33 and 4.44) was recorded highest in 10:100:40 NPK kg ha-1 + Rhizobium meliloti + FYM both during kharif and rabi season. Among seed, quality attributes the seed germination percentage (92.00 and 92.78 %), seedling dry weight (349.14 & 424.83 mg), Seedling Vigor Index (1001 and 1287), the electrical conductivity (0.2800 and 0.2704 dSm-1) and total dehydrogenase enzyme activity (1.078 and 1.083 OD value), recorded highest in 20:100:40 NPK kg ha-1 + Pseudomonas fluorescens + FYM. Whereas, the seed crude protein content (19.19 and 19.22 %) was recorded highest in seeds treated with Rhizobium meliloti + Bacillus megaterium + VAM Fungi + Frateuria aurantia + Pseudomonas fluorescens + FYM over the other treatment combinations during kharif and rabi season respectively.

Key words: alfalfa, root nodules, seedling vigour index

173-177

RESTORING ARID-REGION: OPTIMIZING PRE- GERMINATION TREATMENT AND ENHANCING FORAGE POTENTIAL OF PROSOPIS CINERARIA IN NURSERY CONDITION

NEHA SAINI*, NARESH KAUSHIK AND KAJAL
Department of Forestry
CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
*(e-mail : neha9516 0@gmail.com)
(Received : 7 June 2023; Accepted : 24 September 2023)

SUMMARY

Prosopis cineraria, commonly known as the Khejri or Ghaf tree is a drought-tolerant species in arid regions of Asia. P. cineraia is valued for its forage potential, particularly with limited options. This abstracts provides an overview of pre-germination treatments techniques that enhance germination rates and forage potential under nursery condition. The study was conducted by taking four sources of seed collection i.e. two from Haryana (Hisar and Bhiwani) and two from Rajasthan (Churu and Hanumangarh) with two types of pre-treatments; (1) mechanical scarification with scarifier (1, 1.5, 2.0, 2.5 and 3.0 minutes) and (2) chemical scarification with hot water (20, 25, 30, 35, 40 and 45 minutes), sulphuric and hydrochloric acid for 5,15,20,25 and 30 minutes duration. Results showed that the maximum seedlings were germinated on 3rd day of sowing and minimum on 7th days of sowing. Highest value of speed of germination, seedling establishment, growth and biomass were recorded in seedlings treated with scarifier for 1.5 minute followed by H2SO4 for 15 minutes and hot water for 30 minutes.

Key words: Prosopis cineraria, pre-germination, nursery, seedling establishment, forage

178-183

GROWTH INDICES AND STOVER YIELD OF PEARL MILLET AS INFLUENCED BY HYBRIDS AND FERTILITY LEVELS UNDER TREATED SEWAGE WATER APPLICATION

SANDEEP, PARVEEN KUMAR AND PAWAN KUMAR
Department of Agronomy
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: Sc118568@gmail.com)
(Received : 2 June 2023; Accepted : 12 June 2023)

SUMMARY

A field experiment was conducted at Vegetable Research Farm, Chaudhary Charan Singh Haryana Agricultural University; Hisar to study the effect of hybrids and fertility levels on growth, growth indices and stover yield of pearl-millet under treated sewage water application. The experiment was laid out in factorial RBD with three replications. The treatment comprised of hybrids viz. HHB 67(Improved) and HHB299 and fertility levels viz. control, 75% RDN + FYM @ 5 t/ha, 75% RDN + Vermicompost @ 2.5 t/ha, 75% RDN + Vermicompost @ 2.5 t/ha + FYM @ 2.5 t/ha and 100% RDN (156.25 kg N/ha). Higher value of growth and growth indices were observed with hybrid HHB 299 over HHB67(Improved). Significantly higher stover yield was recorded with the application of 75 percent recommended N + vermicompost @ 2.5 t/ha + FYM @ 2.5 t/ha over control and 100 per cent recommended N. However, it remained at par with all other fertility levels.

Key words: FYM, pearlmillet, stover yield, treated sewage water and vermicompost

188-191

EFFECT OF MACRONUTRIENTS AND HUMIC ACID IN FODDER BASED INTERCROPPING SYSTEM

P. DHAMODHARAN*, M. RAGURAMAKRISHNAN, N. ARIVUKKUMAR, K. KIRUTHIKA AND G. GUNALARASI
Department of Agronomy, AC&RI, TNAU, Coimbatore (Tamil Nadu), India
Department of Agronomy, Vanavarayar Institute of Agriculture, Pollachi (Tamil Nadu), India
Department of Agronomy, Dhanalakshmi Srinivasan University, Trichy (Tamil Nadu), India
*(e-mail: dhambala199@gmail.com)
(Received : 18 September 2023; Accepted : 28 September 2023)

SUMMARY

In the summer season of 2021, a research study was conducted at the Department of Agronomy, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Killikulam. The primary objective was to assess how varying doses of humic acid, in addition with the recommended fertilizer dose, affected the growth and physiological characteristics of African Tall fodder maize and CO 9 fodder cowpea under intercropping system. The study was structured by using randomized block design with 12 treatment combinations, each replicated three times. The study’s results highlighted that applying 125% of the recommended fertilizer dose, supplemented with enriched farmyard manure at a rate of 750 kg/ha, and applying 20 kg/ha of humic acid with addition of foliar spray treatments comprising 1.0% Urea and 0.5% CaCl2 (Treatment 8) were found to yield the highest plant height, number of leaves per plant, branches per plant, and increased dry matter production. Furthermore, this approach demonstrated superior physiological attributes, including agronomic growth rate, relative growth rate, and net assimilation rate at various crop growth stages. Notably, this treatment also exhibited the largest leaf area when compared to control treatments (Treatment 12).

Key words: Humic acid, intercropping, fodder production, physiological traits

192-196

EVALUATION OF MOST PROMISING GENOTYPES OF FABA BEAN (VICIA FABA L.)UNDER DIFFERENT LEVELS OF AGRO- MANAGEMENT PRACTICES IN HARYANA

PAWAN KUMAR, J. M. SUTALIYA, VANDANA AND R. K. ARYA*
MAP Section, Department of Genetics and Plant Breeding,
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: rakarayogi@gmail.com)
(Received : 25 June 2023; Accepted : 26 September 2023)

SUMMARY

Present experiment was conducted at Research Farm Area of MAP Section, Department of Genetics and Plant Breeding, CCS HAU, Hisar during Rabi 2021-22 to evaluate seven promising genotypes (AVT-II entries) of Faba bean (HB 15-04, HB 15-14, HB15-21,HB 15-34, HB 15-41, HB 15- 51, HB 15-55) along with three checks (Vikrant HFB-1 and HFB-2) at four different levels of agro- management, viz., control, 0% RDF + one irrigation, 75% RDF + two irrigations, 100%RDF (40:20:20) + three irrigations. The genotypes and management levels were tested in Split Plotdesign with three replications having plot size 2.1 × 5.0 m2. The results showed that seed yield was significantly influenced by genotypes and fertility levels. Among the genotypes, HB-15-55 produced higher seed yield of 3587 kg/ha followed by HB 15-51 (3507kg/ha), HB 15-04 (3455 kg/ha), HB 15-34 (3430 kg/ha) and HB 15-41 (3320 kg/ha), respectively. The seed yield was significantly increased with the improvement in the management levels. The seed yield was increased to the tune of 09.15, 18.20 and 29.06 percent with 50% RDF + one irrigation, 75% RDF + two irrigation and 100% RDF + three irrigation, respectively than the control (2763 kg/ha). Interaction effect of treatment combinations was non-significant on seed yield. However, a combination of HB 15-55 with 100% RDF + three irrigations resulted in the highest seed yield.

Key words: Promising genotypes, agro-management practices, irrigation, fertilizer, seed yield, faba bean

197-200

IMPROVEMENT IN PRODUCTIVITY AND QUALITY OF WHEAT FODDER WITH VARIOUS RICE RESIDUE MANAGEMENT PRACTICES AND FERTILIZER LEVELS

PREETAM KUMAR*, SANDEEP RAWAL AND RAJ KUMAR
Department of Agronomy,
CCS Haryana Agricultural University Hisar-125004 (Haryana), India
*(e-mail: preetam.rathore@hau.ac.in)
(Received : 20 January 2023; Accepted : 10 July 2023)

SUMMARY

A field experiment was conducted at Agricultural Farm, Krishi Vigyan Kendra, Damla (Yamunanagar) of CCSHAU, Hisar during Rabi, 2019-20. The study was conducted on HD 3086 variety of wheat crop grown in split plot design with six main plot and three subplot treatments in three replications. The main plot comprised of various residue management practices: Combine harvesting of paddy without SMS, burning of crop residues and sowing of wheat by conventional tillage method; Combine harvesting of paddy without SMS, residue shredding with mulcher followed by happy seeder sowing of wheat; Combine harvesting of paddy without SMS, direct sowing of wheat with happy seeder; Combine harvesting of paddy with SMS followed by sowing of wheat using happy seeder; Combine harvesting of paddy without SMS, residue shredding with straw chopper followed by happy seeder sowing of wheat; Manual harvesting of paddy, residue removal and sowing of wheat with conventional tillage practice. Subplot treatments comprised of different fertilizer levels: 75% RDF, 100% RDF and 125% RDF. The investigation was planned with the objective of improving the production as well quality of wheat fodder. Results of the experiment revealed that among different residue management practices, treatment having residue shredding with mulcher followed by happy seeder sowing of wheat (C0R2T1) improved straw yield, protein content and protein yield by 7.7, 3.30 and 13.06 per cent respectively over Manual harvesting of paddy, residue removal and sowing of wheat with conventional tillage practice (C2R0T3). Among various fertilizer levels, treatment with 125% RDF (Recommended dose of fertilizer) recorded higher straw yield, protein content and protein yield by 12.7, 8.74 and 24.35 per cent respectively compared to 75% RDF treatment.

Key words: Residue, fertilizer, happy seeder, mulcher

204-208

IMPACT OF IRRIGATION METHODS, MANURE AND FERTILIZER ON GROWTH AND STRAW YIELD OF BARLEY (HORDEUM VULGARE L.)

ABHISHEK, S. K. THAKRAL, PARVEEN KUMAR, SUMIT BHARDWAJ, AKSHAY PAREEK AND MANOJ SAINI
Department of Agronomy
Department of Soil Science
CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
*(e-mail: abhishekrajput4442@gmail.com)
(Received : 23 April 2023; Accepted : 10 August 2023)

SUMMARY

A field experiment was conducted during Rabi 2021-22 to assess the impact of irrigation methods, manure and fertilizer on growth and straw yield of barley at CCS Haryana Agricultural University, Hisar. The experiment was conducted in a split-plot design with vermicompost level @ 1.5 t/ha and 3.0 t/ha, irrigation method i.e., every furrow irrigation and alternate furrow irrigation assisted in the main plot and three fertilizer levels at N40P20, N60P30 and N80P40 kg/ha in subplot with three replications. Irrigation method, vermicompost as well as fertilizer levels had significant effect on growth parameters, harvest index, B : C and straw yield of barley.

Key words: Irrigation methods, vermicompost, fertilizer and barley

209-212

AGRONOMIC BIOFORTIFICATION THROUGH NUTRIENT MANAGEMENT TO ENHANCE YIELD AND QUALITY OF PEARLMILLET

ARUN, PARVINDER KUMAR, A. K. DHAKA, ANU, ANIL AND GAURAV DANGI
Department of Agronomy,
College of Agriculture
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : arungill101@hau.ac.in)
(Received : 24 July 2023; Accepted : 25 September 2023)

SUMMARY

An experiment was conducted at Research Farm Area, Department of Agronomy, Chaudhary Charan Singh Haryana Agricultural University, Hisar during Kharif 2022 to study the effect of integrated nutrient management on stover yield quality parameters of pearlmillet. The experiment was conducted in randomized block design with three replications containing 12 treatments. The crop was sown on 12 July, 2022 using pearl millet hybrid ‘HHB 67 improved’. Among the treatments, application of RDF (156.25 : 62.50 kg ha-1 N : P) + 0.5% ZnSO4 + 0.5% FeSO4 + BIOMIX (T12) resulted in significantly higher stover yield (70.33 q ha-1), zinc (2.99 ppm), iron (4.13 ppm) content in stover of pearlmillet. It was statistically comparable to RDF + 0.5% ZnSO4 + 0.5% FeSO4 at 25 DAS (T11) and RDF + 25 kg ha-1 ZnSO4 (T8). The Zn and Fe content in stover was 17.0 & 7.7 % and 5.8 & 2.9 % higher over control and RDF, respectively. Maximum protein and NPK content were recorded in T12.

Key words: Pearlmillet, quality, INM, zinc, iron, stover

213-217

EFFICACY OF MICROBIAL AND BOTANICAL PESTICIDES AGAINST APHID (RHOPALOSIPHUM PADI L.) ON OAT (AVENA SATIVA L.) IN MAHARASHTRA

S. A. LANDGE*, S. V. DAMAME AND L. N. TAGAD
AICRP on Forage Crops and Utilization,
Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (Maharashtra), India
*(email: landge_sandip@rediffmail.com)
(Received : 19 August 2023; Accepted : 21 September 2023)

SUMMARY

The present experiment on efficacy of microbial and botanical pesticides against aphid (Rhopalosiphum padi L.) was conducted during Rabi season of 2016-17 to 2019-20 on oat crop at the field of All India Coordinated Research Project on Forage Crops & Utilization at MPKV, Rahuri Dist- Ahmednagar, Maharashtra. Winter fodder scarcity is one of the major problems in feeding management for ruminants in India. Oat (Avena sativa L.) belong to gramineae family is one of the important cosmopolitan forage crop in the world agriculture ecosystem due to its quick growing habit, multi-cut ability and high protein content. Oat crop are heavily attacked by aphids. This aphids are found causing damage by pierce and suck sap from leaves, stems and hence responsible for the quality and yield losses. The present investigation was carried out with an object to “study the efficacy of biopesticides and botanical insecticides against oat aphid (R. padi)” to find out highly effective biopesticides for the management of oat aphid and to avoid the residues due the chemical insecticides. In the study oat variety Kent was sown at 25 cm spacing as line sowing in 3 × 4 m plot size with randomized block design with three replications and each replication has five rows. Studies revealed that among the treatment of biopesticide, at 7 days after treatment, L. lecanii @ 7.5 g/lit recorded significantly lower number of survived aphids per tiller 8.77 followed by M. anisopilae @ 7.5 g/lit (10.49), L. lecanii 5g/lit (10.54), and M. anisopilae @ 5 g/lit.(13.75). Similarly the higher Green Forage Yield recorded in L. lecanii 1.5 % @ 7.5 g/lit. (502.07 q/ha) followed by M. anisopliae @ 7.5 g/lit (497.37 q/ha), L. lecanii @ 5g/lit (496.75 q/ha) and M. anisopliae @ 5 g.lit ( 495.03 q/ha). Among the treatments there were found non significant differences of coccinellid predators. Biopesticides did not affect the activities of coccinellid predators at 5 and 7 days after spray.

Key words: Oat, aphid, biopesticides, management

218-223

COMPARATIVE ANALYSIS OF FODDER COWPEA (VIGNA UNGUICULATA L.) VARIETIES FOR SEED YIELD AND NUTRIENT CONTENT

DIGVIJAY SINGH
National Dairy Development Board, Anand-388001 (Gujarat), India
*(e-mail: dsingh@nddb.coop)
(Received : 24 August, 2023; Accepted : 23 September, 2023)

SUMMARY

The field experiment was to evaluate 14 fodder cowpea varieties for their seed yield, fodder yields, nutrient content in seed and proximate parameters in green fodder & crop residues after seed harvest.Significantly highest seed yield (MT/ha) was recorded in cowpea variety UPC 4200 (0.908) in comparison to many varieties but statistically at par with varieties viz. UPC 9202 (0.869), UPC 621 (0.885), UPC 618 (0.798), UPC 628 (0.743), BL-1 (0.781) and check variety EC 4216 (0.781). Seed yield (MT/ha) in cowpea varieties ranged between 0.607-0.908.In seed, N % was higher in UPC 625 (4.34), whereas, P % was found to be significantly higher (0.59) in seed of two cowpea varieties GFC-4 & GFC-1. Ca % was found to be significantly higher (0.12) in seed of three varieties viz. GFC-1, Kohinoor and BL-1. In cowpea varieties seed, macro-nutrients K, Mg and S varied between 1.15-1.27 %, 0.17- 0.22 % and 0.19-0.23 %, respectively, whereas,micro-nutrient varied between 1.15-1.27 ppm, 5.00-5.99 ppm, 0.19-0.23 ppm and 0.17-0.22 ppm, respectively for Fe, Cu, Mn and Zinc, respectively. Cowpea varieties non-significantly varied for green fodder, dry fodder and crude protein yields between 12.51-17.22 MT/ha, 2.88-4.33 MT/ha and 0.48-0.73 MT/ha, respectively. Among cowpea varieties, crude protein %, crude fat %, crude fibre %, and silica % ranged between 14.58-18.62, 0.50-2.45, 22.92-36.89 and 0.43-1.36 in green fodder and 8.10-10.30, 0.54-2.94, 35.88-42.56 and 1.01-2.57 in crop residues after seed harvest, respectively.

Key words: fodder cowpea, variety, seed yield, straw yield, nutrient, proximate

224-230