Reference Report for IND20578805
| Title: | Effect of planting date on population densities of Hoplolaimus columbus and yield of soybean |
| Authors: | Perez, E.E., Mueller, J.D., Lewis, S.A. |
| Source: | J. Nematol. 1996, 28(4):569-574 |
| Abstract: | During the 1991 and 1992 soybean growing seasons, field plots were established in South Carolina to study the effect of planting date on at-planting nematode densities and subsequent yield losses caused by Hoplolaimus columbus. The susceptible and intolerant soybean cv. Braxton was planted on five dates from 10 May to 28 June in 1991 and from 12 May to 28 June in 1992. Nematodes were recovered from soil samples collected before nematicide treatment with 1,3-D (Pi), at 6 weeks after planting (Pm), and at harvest (Pf). Initial nematode population densities did not differ among the five dates of planting in either year. The increase in numbers of nematodes from planting to 6 weeks after planting (Pm/Pi) and from planting to harvest (Pf/Pi) were not different among the five planting dates in either year. Root samples also were collected at 6 weeks after planting and at harvest, but planting date did not affect the number of nematodes extracted from roots on any; sample date in either year. Altering planting dates between early May and late June was not effective in preventing yield suppression due to H. columbus. |
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