Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize

The widespread adoption of cropping systems that are sustainable and environmentally friendly is vital for the macroeconomic survival of civilization. Intercropping could ensure stability of insect populations in a system. A 3-yr (2005-2007) field trial was therefore carried out in Nigeria under reg...

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Autores principales:	Dasbak,Madang A, Echezona,Bonaventure C, Asiegbu,Jerry E
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	cropping system ratoon crops regular crop
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100008
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spelling	oai:scielo:S0718-583920120001000082018-10-01Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with MaizeDasbak,Madang AEchezona,Bonaventure CAsiegbu,Jerry E cropping system ratoon crops regular crop The widespread adoption of cropping systems that are sustainable and environmentally friendly is vital for the macroeconomic survival of civilization. Intercropping could ensure stability of insect populations in a system. A 3-yr (2005-2007) field trial was therefore carried out in Nigeria under regular and ratoon crops to evaluate five recently developed pigeon pea (Cajanus cajan [L.] Huth) genotypes (ICPL 87, ICPL 161, ICPL 85063, ICP 7120, and ICPL 87119) from the International Crops Research Institute for Semi-Arid Tropics (ICRISAT) and one local variety for their relative performance and susceptibility to insect pests. The pigeon pea genotypes were in a mixture with two maize genotypes (Zea mays L., open-pollinated and hybrid) in regular crops for 2 yr (2005-2006) followed by a ratoon crop for 1 yr (2007). Termites (Odontotermes badius), crickets (Gymnogryllus lucens), and variegated grasshoppers (Zonocerus variegatus) were the crop’s seedling pests and caused minimal damage. Clavigralla spp. infestations were high at the reproductive stage causing 24% and 29% seed damage in regular and ratoon pigeon pea crops, respectively. Maize slightly suppressed insect pest incidence and damage to pigeon pea pods and seeds but significantly (P < 0.01) reduced grain yield in the regular pigeon pea crops in 2005 and 2006, although not in the 2007 ratoon. The pigeon pea genotypes differed significantly (P < 0.05) in pest incidence at the podding stage in both the regular and ratoon crops and in grain yield (P < 0.01) for the regular crop. Grain yield of the pigeon pea ratoon crops was about 60% of the regular crop. Farmers were recommended to adopt the ICPL 161 and ICPL 87 genotypes based on pest tolerance and high grain yield or as idiotypes in pigeon pea hybridization programs.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100008en10.4067/S0718-58392012000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	cropping system ratoon crops regular crop
spellingShingle	cropping system ratoon crops regular crop Dasbak,Madang A Echezona,Bonaventure C Asiegbu,Jerry E Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
description	The widespread adoption of cropping systems that are sustainable and environmentally friendly is vital for the macroeconomic survival of civilization. Intercropping could ensure stability of insect populations in a system. A 3-yr (2005-2007) field trial was therefore carried out in Nigeria under regular and ratoon crops to evaluate five recently developed pigeon pea (Cajanus cajan [L.] Huth) genotypes (ICPL 87, ICPL 161, ICPL 85063, ICP 7120, and ICPL 87119) from the International Crops Research Institute for Semi-Arid Tropics (ICRISAT) and one local variety for their relative performance and susceptibility to insect pests. The pigeon pea genotypes were in a mixture with two maize genotypes (Zea mays L., open-pollinated and hybrid) in regular crops for 2 yr (2005-2006) followed by a ratoon crop for 1 yr (2007). Termites (Odontotermes badius), crickets (Gymnogryllus lucens), and variegated grasshoppers (Zonocerus variegatus) were the crop’s seedling pests and caused minimal damage. Clavigralla spp. infestations were high at the reproductive stage causing 24% and 29% seed damage in regular and ratoon pigeon pea crops, respectively. Maize slightly suppressed insect pest incidence and damage to pigeon pea pods and seeds but significantly (P < 0.01) reduced grain yield in the regular pigeon pea crops in 2005 and 2006, although not in the 2007 ratoon. The pigeon pea genotypes differed significantly (P < 0.05) in pest incidence at the podding stage in both the regular and ratoon crops and in grain yield (P < 0.01) for the regular crop. Grain yield of the pigeon pea ratoon crops was about 60% of the regular crop. Farmers were recommended to adopt the ICPL 161 and ICPL 87 genotypes based on pest tolerance and high grain yield or as idiotypes in pigeon pea hybridization programs.
author	Dasbak,Madang A Echezona,Bonaventure C Asiegbu,Jerry E
author_facet	Dasbak,Madang A Echezona,Bonaventure C Asiegbu,Jerry E
author_sort	Dasbak,Madang A
title	Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
title_short	Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
title_full	Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
title_fullStr	Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
title_full_unstemmed	Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize
title_sort	field insect pests and crop damage assessment of pigeon pea (cajanus cajan [l.] huth) grown under ratoon and in mixture with maize
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100008
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Field Insect Pests and Crop Damage Assessment of Pigeon Pea (Cajanus cajan [L.] Huth) grown under Ratoon and in Mixture with Maize

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