Effects of soil solarization on nematodes parasitic to chickpea and pigeonpea

Sharma, S.B. and Nene, Y.L. (1990) Effects of soil solarization on nematodes parasitic to chickpea and pigeonpea. Journal of Nematology, 22 (4S). pp. 658-664.

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Solarization by covering the soil with transparent polyethylene sheets during the summer months (April, May, June) in 1984 and 1985 significantly (P = 0.01) reduced the population densities of nematodes (Heterodera cajani, Rotylenchulus reniformis, Helicotylenchus retusus, Pratylenchus sp., and Tylenchorhynchus sp.) parasitic to chickpea and pigeonpea. Population density reductions of 93% of Heterodera cajani eggs and juveniles, 99% ofHelicotylenchus retusus, 98% ofPratylenchus sp., and 100% of R. reniformis were achieved by solarization in 1984. Irrigation before covering soil with polyethylene improved (P = 0.01) the effects of solarization in reducing the population densities of Heterodera cajani. Similar trends in population density reductions were observed in 1985, but the solarization effects were not the same. Nematode population reductions in the 1984-85 season were evident until near crop harvest, but in the 1985-86 season the effects on nematode populations were not as great and did not last until harvest. Factors such as rains during the solarization, duration of solarization, and sunshine hours may have influenced the efficacy of solarization. Solarization for two seasons reduced the population densities each year about the same as single season solarization, and residual effects of solarization on nematode populations did not last for more than a crop season.

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Andhra Pradesh, India
Subjects: Plant Protection
Soil Science and Microbiology > Soil Sciences
Divisions: Chickpea
Depositing User: Sandhya Gir
Date Deposited: 06 Jan 2011 22:49
Last Modified: 06 Jan 2011 22:49
Official URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC261910...
URI: http://eprints.icrisat.ac.in/id/eprint/1291

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