ダウンロード数 : ?
Title Transcription
ニカメイガ ランカイ コタイグン ノ ケンキュウ ニ テキヨウシウル サンプリングホウ
Title Alternative
Sampling Techniques Applicable to Studies on Rice-Stem Borer Egg-Mass Populations
File
language
eng
Author
Otake, Akio
Description
During the three years 1957-1959, the writer made observations on the egg mortality of the rice-stem borer, Chilo suppressalis WALKER, in its first brood, in a paddy field at Nogi, Matsue City. Every observation day in the first two years, a new map was drawn showing the location of rice-bunches which bore, on that day, egg masses not yet hatched or just after hatching in a plot established in the field. In 1960, a map of the same kind was made only once.
The writer intends, in this paper, to investigate whether some of these maps answer the following two questions:
1) Whether the sequential sampling technique is applicable to classifying given paddy fields according to population levels of egg masses existing in them.
2) Whether a kind of the spacing method as proposed by MORISITA (1957) is adequate for estimating the population density of egg masses in a given paddy field.
Journal Title
島根農科大学研究報告
Volume
9
Start Page
(A-1)209-221
ISSN
05598311
Published Date
1961-03-31
NCID
AN00108241
Publisher
島根農科大学
Publisher Aalternative
The Shimane Agricultural College
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Shimane University
Remark
A,Bを含む
開学十周年記念号(Commemoration Number for the 10th Anniversary)
このエントリーをはてなブックマークに追加