Population dynamics and management of major insect pests of chickpea, Cicer arietinum L.
| dc.contributor.advisor | Yogesh Kumar | |
| dc.contributor.author | Jakhar, Pritish | |
| dc.date.accessioned | 2017-03-04T09:15:47Z | |
| dc.date.available | 2017-03-04T09:15:47Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | The present study was conducted at Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana (India). Normal sown crop, was recorded with less larval/nymphal population of Helicoverpa armigera (126.75 l/mrl), Spodoptera exigua (5.78 l/mrl), Autographa nigrisigna (19.59 l/mrl) and Aphis craccivora (7.40 nymphs/plant) while, 154.70 l/mrl, 5.94 l/mrl, 27.05 l/mrl and 8.15 nymphs/plant, respectively in late sown crop of chickpea. Significantly lower pod damage (52.98%) and higher yield (863.90 kg/ha) was recorded in normal while 68.55% and 505.41 kg/ha, respectively in late sown crop. Significantly positive correlation of maximum and minimum temperature was observed with larval population of H. armigera, S. exigua and A. nigrisigna while, significantly negative with morning and evening relative humidity. The significantly positive correlation was recorded between per cent parasitization and morning relative humidity. Coragen 18.5 SC was found most effective in first and second spray during 2013-14 and 2014-15, against larval/nymphal population of H. armigera, S. exigua, A. nigrisigna and A. craccivora population and it was followed by novaluron 10 EC whereas, quinalphos 25 EC was least effective followed by NSKE 5%. Maximum incremental benefit cost ratio was recorded in deltamethrin 2.8 EC (23.75) and it was followed by thiodicarb 75 WP (12.86) and novaluron 10 EC (12.66) while minimum was recorded in spinosad 45 SC (2.63). The plot treated with coragen 18.5 SC was recorded with minimum pod damage (19.20%) and maximum yield (1294.31 kg/ha) and it was statistically on par with deltamethrin 2.8 EC (23.10% and 1225.69 kg/ha, respectively) and novaluron 10 EC (21.29% and 1255.56 kg/ha, respectively) while quinalphos 25 EC with maximum pod damage (38.21%) and minimum yield (668.75 kg/ha). Maximum per cent of avoidable loss was recorded in HK-1 (76.0%) and followed by HK-2 (72.7 %) while, minimum was in HC-3 (64.7%). In screening of chickpea genotypes, GNG 1581 was recorded with minimum larval/nymphal population of H. armigera (17.99 l/mrl), S. exigua (0.60 l/mrl), A. nigrisigna (1.69 l/mrl) and A. craccivora (1.46 nymphs/plant) and it was statistically on par with H 07-121 genotype. Genotype HK-2 was recorded with maximum larval/nymphal population of H. armigera (28.50 l/mrl), S. exigua (1.65 l/mrl), A. nigrisigna (4.09 l/mrl) and A. craccivora (3.30 nymphs/plant) and it was statistically on par with C-235 and HC-1. Genotypes GNG 1581 and HK-2 were recorded with minimum (33.26%) and maximum (83.30%) pod damage, respectively. H 03-56 had maximum yield (371.67 kg/ha) while, ICCL 86111 had minimum yield (102.50 kg/ha). Relatively resistant genotypes were GNG 1581 and GNG 1488 with minimum PSR (3) whereas HK-2 was susceptible with maximum PSR (7) among the selected genotypes. Significant positive correlation of number pods/plant and number of primary branches was observed with H. armigera, S. exigua, A. nigrisigna and A. craccivora, while, significantly negative with leaf trichomes and plant height. Malic acid had significantly negative correlation with H. armigera, S. exigua, A. nigrisigna and A. craccivora population. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810003880 | |
| dc.keywords | Beet armyworm, Biochemical, Black aphid, Chickpea, Pod borer and semilooper | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | CCSHAU | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | Population dynamics and management of major insect pests of chickpea, Cicer arietinum L. | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Population dynamics and management of major insect pests of chickpea, Cicer arietinum L. | en_US |
| dc.type | Thesis | en_US |