Field reaction of Corchorus olitorius jute to Polyphagotarsonemus latus (Banks) and Apion corchori Marshall in natural condition

Abstract :

Insect pests are one of the leading detains for highlighting jute production. Every year, on an average 20-30% or more fibre yield is reduced due to pest attack. Insect pest resistant variety is a crying need to overcome fibre loss. Four Corchorus olitorius jute were screened against mite and apion infestation for developing insect pest tolerant jute variety during April- October, 2018 and 2019. The highest mite infestation (41.85%) was found in 2019 on O-9897 in Rangpur and lowest (19.21%) was found in 2019 on O-0411-10-4 in Kishoreganj. The highest apion infestation (41.97%) was found on O-043-7-9 in Kishoreganj in 2018 and lowest (18.41%) was found on O-0411-10-4 in Jashore in 2018. The highest fibre yield (3.31tha-1) was found in 2019 on O-0411-10-4 in Faridpur and lowest (2.55 tha-1) was found in 2019 on O-0512-6-2 in Faridpur. Pearson correlation coefficients, linear regression, biplot of PCA, scatter plot matrix and correlation and regression study showed that when pest infestation is high, then yield contributing attributes are low and vice-versa. Promising line O-0411-10-4 received lowest infestation with high yield traits. So, promising line O-0411-10-4 could be used as the most prominent line for insect pest tolerance jute variety development.

Keyword :

Correlation coefficients of variabilityPrincipal Component Analysis, Polyphagotarsonemus latus, Apion corchori, Infestation, Tolerance, Economic Yield, Corchorus olitorius

Author(s) : Rahman, Md. S., Islam, Md. N., Polan, M. S.
Downloads : 47
Published Issue : 2022 Vol. 17 Number 1

2022 Vol. 17 Number 1