CAJ | 학술논문

研究在实验室条件下不同温度,不同光照和不同土壤含水量对大豆胞囊线虫(SCN)休眠卵孵化的影响.分别测定了5个温度梯度下(18℃、21℃、24℃、27℃和30℃),7个光照条件下(0/24 h,4/20 h,8/16 h,12/12 h,16/8h,20/4 h和24/0 h)和7个土壤含水量(1%、5%、10%、15%、20%、25%和30%)条件下SCN休眠卵的孵化情况.结果表明:在供试温度18～30℃之间,休眠卵的孵化总量随温度升高而增加,30℃下孵化数量最大,达1316.33条.全光照处理的孵化量最大,达745.00条,4L/20D、12L/12D和20L/4D次之,而全黑暗处理的孵化量最少,仅为102.00条.土壤含水量在1%～30%之间,含水量为15%时孵化数量最大,达265.33,含水量在1%～15%时,孵化量随含水量的增加而增加,当含水量大于15%时,孵化量随含水量增加反而降低.研究证实在SCN休眠期可以通过提高温度增加光照时间来诱导卵孵化,以提高J2孵化数量,采用休眠胞囊接种应注意调节土壤含水量.
연구재실험실조건하불동온도,불동광조화불동토양함수량대대두포낭선충(SCN)휴면란부화적영향.분별측정료5개온도제도하(18℃、21℃、24℃、27℃화30℃),7개광조조건하(0/24 h,4/20 h,8/16 h,12/12 h,16/8h,20/4 h화24/0 h)화7개토양함수량(1%、5%、10%、15%、20%、25%화30%)조건하SCN휴면란적부화정황.결과표명:재공시온도18～30℃지간,휴면란적부화총량수온도승고이증가,30℃하부화수량최대,체1316.33조.전광조처리적부화량최대,체745.00조,4L/20D、12L/12D화20L/4D차지,이전흑암처리적부화량최소,부위102.00조.토양함수량재1%～30%지간,함수량위15%시부화수량최대,체265.33,함수량재1%～15%시,부화량수함수량적증가이증가,당함수량대우15%시,부화량수함수량증가반이강저.연구증실재SCN휴면기가이통과제고온도증가광조시간래유도란부화,이제고J2부화수량,채용휴면포낭접충응주의조절토양함수량.
The effects of temperature,illumination and soil water content on dormant eggs of Heterodera glycine were studied in lab. Hatching of the eggs were assayed under 5 tested temperatue( 18℃ ,21℃,24℃ ,2℃ and 30℃) ,7 tested illumination conditions(0/24 h,4/20 h,8/16 h, 12/12 h,16/8 h,20/4 h and 24/0 h)and7 kinds of soil water contents(1% ,5% , 10% ,15% ,20% ,25% and 30% ) , respectively. Total number of hatched J2 increased with increasing of temperature a-mong 18 - 3℃ ,and reached 1316. 33 under condition of 30X. . Amount of hatched J2 of full illumination treatment reached 745.00,followed by treatments of 4L/20D,12L/12D and 20L/4D,and that of full dark treatment was the least. Among all water content treatments, hatched J2 reached the most under 15 % water content, however the amount of hatched J2 reduced when tested water content over 15% . It is concluded that eggs hatching can be induced by high temperature and long illumination, while regulating soil water content is necessary to inoculation with dormant cysts to soybean.