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《ACTA TABACARIA SINICA》 1994-01
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Studies on the Larval Spatial Pattern of Distribution and Sequential Sampling Technique for Cotton Bollworm in Seed Plots of Flue-cured Tobacco

Hua Baozhen; Yuan Feng; Hu Xiaoping(Dept. of plant protection, Northwestern Agricultural University)  
The cotton bollworm, Helicoverpa armigera (HUbner), is a serious pest in the seed plots of flue-cured tobacco in Bac n, Shaanxi province. It damages the flower and capsule,and cause yield loss. The investigation in the early September 1993 shows that the larval spatial patterns of distribution fits both poisson and Negative Binomial, and changes with its mean density. But they all conform to Taylor's power law,S2 = 1. 07523m0. 9931If the economic threshold (m0) is given as 0. 15 larva per plant, the Iwao's sequential sampling technique would be with the maximum sampling size of 16 plants. Having compared the different fixed-sample-size techniques, we conclude that the parallel lines technique is among the best.
【CateGory Index】: S435.72
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【References】
Chinese Journal Full-text Database 2 Hits
1 SHANG Wenjing;WEI Feng;FENG Xiaojun;ZHU Heqin;YANG Jiarong;HU Xiaoping;State Key Laboratory of Crop Stress Biology in Arid Areas,College of Plant Protection,Northwest A&F University;Institute of Cotton,Chinese Agriculture Academy Sciences;The Station of Plant Protection Shaanxi;;Spatial Pattern and Sampling Method for Microsclerotia of Verticillium dahliae in Soil of Cotton Field[J];西北农业学报;2014-04
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 BAI Ying-Wen1 HU Dong-Fang1 HU Xiao-Ping1* ZHAO Jun-Xing2 ZHU He-Qin3 YANG Jia-Rong1 1State Key Laboratory of Crop Stress Biology in Arid Areas,College of Plant Protection,Northwest Agriculture & Forestry University,Yangling 712100,China 2Research Institute of Cotton Science,College of Agronomy,Northwest Agriculture & Forestry University,Yangling 712100,China 3Institute of Cotton,Chinese Academy of Agricultural Sciences,Anyang 455100,China;Formation conditions for microsclerotia of Verticillium dahliae[J];菌物学报;2011-05
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7 Hua Baozhen; Yuan Feng; Hu Xiaoping(Dept. of plant protection, Northwestern Agricultural University);Studies on the Larval Spatial Pattern of Distribution and Sequential Sampling Technique for Cotton Bollworm in Seed Plots of Flue-cured Tobacco[J];中国烟草学报;1994-01
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1 XUE Lei;XU Wanli;GU Meiying;WANG Jiantao;LIU Xiangchun;XUE Quanhong;College of Life Sciences,Northwest A&F University;Technology Center,China Tobacco Shaanxi Industrial Co.Ltd.;Institute of Soil and Fertilizer & Agricultural Water-Saving,Xinjiang Academy of Agricultural Science;Institute of Microbiology,Xinjiang Academy of Agricultural Sciences;College of Natural Resources and Environment,Northwest A&F University;;Effect of pH and Salinity on Microsclerotia Formation of Verticillium dahliae[J];西北农业学报;2017-10
2 LUO Mei-hao~1, GUO Xian-ru~1, WANG Jun~2, JIANG Jin-wei~1(1.College of Plant Protection , Henan Agricultural University ,Zhengzhou 450002, China ; 2.Weather Bureau of Henan Province , Zhengzhou 450003 , China);Occurrence and quantity ratio of the oriental tobacco budworm Helicoverpa assulta Guenée and the cotton bollworm H. armigera Hübner in tobacco field of Henan[J];河南农业大学学报;2004-04
3 Luo Meihao 1\ Guo Xianru 1\ Zheng Xiaojun 1\ Chen Zhi 2\ Ma Jisheng 1 1 Plant Protection College of Henan Agricultural University,Zhengzhou 450002 2 Science and Education Garden of Henan Agricultural University,Zhengzhou,450002;The niche and interspecific competition of oriental tobacco budworm and cotton bollworm in tobacco plants[J];中国烟草学报;2002-04
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