CAJ | 학술논문

以云南省建水县稻区1986～1997年连续24年同黑光灯下监测诱集的水稻三化螟种群数量及越冬代虫口基数为依据,结合当地1986～1997年最高温度、最低温度、平均温度及相对湿度等主要气象资料,采用多元回归法分析了三化螟物候和多度与气象条件间的相互关系.结果表明,三化螟成虫种群数量在年际闻变化明显,从1986～1997年连续24年间,灯下三化螟成虫的始见期与1～2月的平均温度显著相关,当年11月到次年2月,灯下未诱集到三化螟成虫,从7月到9月,灯下虫量迅速增加,于9月灯下虫量达高蜂.灯下三化螟成虫种群与最高温度、最低温度和平均温度间具有显著相关性,瞳着温度的升高,灯下虫量逐渐增加,但随着相对湿度的增加而降低,降雨量对灯下虫量无明显影响.灯下虫量与气象因素间的多元回归分析及逐步回归分析后获得逐步回归方程Y=-546.67 +10.52X2 -0.52X4 +6.25X5,相关系数R=0.38(F=12.95,P＜0.01).灯下虫量与气象因素闻的总体多元回归方程为Y=-723.17 -3.81X1 +26.00X2 - 10.82X3 -0.48X4 +7.67X5 (F=12.39,P＜0.01),其中X1为最高温度;X2为平均温度;X3为最低温度;X4为降雨量;X5为相对湿度.越冬代幼虫的虫口密度与次年3月和4月灯下成虫数量具有显著的相关性,且越冬代幼虫的虫口密度是影响灯下虫量的关键因子.
이운남성건수현도구1986～1997년련속24년동흑광등하감측유집적수도삼화명충군수량급월동대충구기수위의거,결합당지1986～1997년최고온도、최저온도、평균온도급상대습도등주요기상자료,채용다원회귀법분석료삼화명물후화다도여기상조건간적상호관계.결과표명,삼화명성충충군수량재년제문변화명현,종1986～1997년련속24년간,등하삼화명성충적시견기여1～2월적평균온도현저상관,당년11월도차년2월,등하미유집도삼화명성충,종7월도9월,등하충량신속증가,우9월등하충량체고봉.등하삼화명성충충군여최고온도、최저온도화평균온도간구유현저상관성,동착온도적승고,등하충량축점증가,단수착상대습도적증가이강저,강우량대등하충량무명현영향.등하충량여기상인소간적다원회귀분석급축보회귀분석후획득축보회귀방정Y=-546.67 +10.52X2 -0.52X4 +6.25X5,상관계수R=0.38(F=12.95,P＜0.01).등하충량여기상인소문적총체다원회귀방정위Y=-723.17 -3.81X1 +26.00X2 - 10.82X3 -0.48X4 +7.67X5 (F=12.39,P＜0.01),기중X1위최고온도;X2위평균온도;X3위최저온도;X4위강우량;X5위상대습도.월동대유충적충구밀도여차년3월화4월등하성충수량구유현저적상관성,차월동대유충적충구밀도시영향등하충량적관건인자.
Phenology and abundance of yellow fice borer,Tryporyza incertulas (Walker),were examined throughout 24 consecutive years from the population under the black-light trap and stalk checking in Jianshui county,Yunnan Province,China.The population of moth of T.incertulas varied significanfly between years.The onset of the flight period of the moth from the 1st of March was signilicantly correlated with mean temperature of January and February,whereas the population density of the moth under the light was significautly correlated with mean temperature.No moth was trapped between November and February,the most rapid increaae being from July to September,with peak trapping in September.The population was significantly correlated with all three temperature parameter-maximum,mean,and minimum-relative humidity,and rainfall.The higher the temperatune,the higher was the pest population but the higher the relative humidity,the lower was the pest population.Raiofall did not have consistent significant effect on the number pest pest adults trapped.The multiple correlation between the number of yellow rice borer adults trapped and weather parameters using step by atep regression was as follows:Y =-546.67 + 10.52X2-0.52X4 + 6.25X5,and the relative coefficient was R =0.38( F =12.95,P ＜ 0.01 ).The total multiple correlation between the number of yellow rice borer adults trapped (Y) and weather parameters was the following:Y=-723.17 -3.81X1 + 26.00X2 - 10.82X3 -0.48X4+7.67X5 (F =12.39,P＜0.01),where x1 =Maximum temperature; x2 =Mean temperature; x3 =Minimum temperature;x4 =Rainfall; and x5 =RH.The fluctuation of the overwintering population was consistent with the change of the population of moth in March and April trapped by light,and it showed that the overwintering population is a key factor affecting the moth number.