Journal ID : AMA-15-01-2024-12845
[This article belongs to Volume - 55, Issue - 01]
Total View : 427

Title : IMPACTS OF VARIETIES AND THEIR BIOCHEMICAL PARAMETERS ON POD DAMAGE BY BORER COMPLEX IN PIGEON PEA IN EASTERN INDIA

Abstract :

To understand the impact of varieties and their biochemical parameters on pod damage in pigeon pea, the field experiments were conducted to evaluate thirteen pigeon pea varieties at Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal, India. The experiment was laid out in randomized block design with three replications. Fifty pods had been harvested for recording pod damage by borer complex at three developmental stages of pod viz. pod formation, pod filling and pod maturity. Results revealed that among the tested varieties, MA6, Pusa 9, Pusa 991, CORG 9701 recorded lower pod damage in comparison to the other varieties. Pod damage caused by Helicoverpa armigera on MA6, Pusa 9, Pusa 991 and CORG 9701 were recorded from 2.35 to 2.82%, 7.33 to 9.07% and 15.82 to 19.55% at pod formation, pod filling and pod maturity stages, respectively whereas the corresponding values for Melanagromyza obtusa were 13.01 to 18.85%, 23.03 to 31.30% and 26.73 to 36.84%, respectively. It was evident from the regression studies that the Helicoverpa population can be explained by total seed protein content up to 87.4 % whereas for pod fly protein content can explain the average population up to 82.2 %. The total seed phenol content can explain the Helicoverpa population up to 83.60 % whereas the same can be explained up to 68.8% for pod fly. The seed protein content was directly proportional and seed phenol content was inversely proportional with the average population of all insect pests.

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