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STUDIES ON THE DISTRIBUTION OF WHITEFLY NYMPH ON SUMMER SOYBEAN PLANTS(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2006年02期
Page:
188-191
Research Field:
Publishing date:

Info

Title:
STUDIES ON THE DISTRIBUTION OF WHITEFLY NYMPH ON SUMMER SOYBEAN PLANTS
Author(s):
Zhang Lifeng1　 Xu Ran1　 Wang Caijie1　 Zhang Guichun2
(1. Crops Institute , Shandong Academy of A gricultural Sciences ,J inan 250100;2. Shandong Institute o f Education , Jinan 250013)
Keywords:
Whitefly nymph ; Summer soybean ; Plant ; Distribution
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2006.02.0188
Abstract:
　 T he distribution of whitefly nymph on the plants of 223 summer soybean varieties was in vesti-galed. The result showed that 83. 1%of whitefly nymphs were present on top and middle leaves and therewas no marked difference between middle and top leaves;significant difference was observed on the distri-bution of whitefly nymphs among different podding habit soybean varieties. In determinate podding habitvarieties, 57. 7%of whitefly nymphs were present on upper 4 leaves;in indeterminate podding habit varie-ties, 53. 1%of whitefly nymphs were present on from the 11th leaves to 16th leaves;in semi-determinatepodding habit varieties , 39. 6 %and 41. 4%of whitefly nymphs were present on the 5 middle leaves and 5top leaves, respectively. The chemical control of whitefly nymphs should mainly focus on the top and mid-dle leaves according to the whitefly nymph distribution.

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Last Update: 2016-12-14