Sorghum fodder line’s reaction to shoot fly, Atherigona soccata and stem borer
Author(s): VU Sonalkar, RB Ghorade and PK Rathod
Abstract: Sorghum single-cut hybrids and varietal fodder lines along with seven checks screening studies were evaluated for their reaction against insect pests at Akola in kharif 2022.The reaction of fodder sorghum single cut lines were observed against shoot fly, stem borer, aphid, Midge and shoot bug. Seedling glossiness recorded in scale 1.0 to 5.0; the score was minimum i.e. glossy seedlings for resistant checks IS 2205 and IS 18551 and in test line SPV2878. Shoot fly dead hearts 21 DAE within the sorghum entries were significant and least shoot fly damage was noted for resistant checks viz., IS 2205 (RC) and IS 18551 (RC) and among the test line SPV2878 (34.46%) had least damage. Maximum dead hearts were expressed by test line SPH2006. Dead hearts among the entries tested 28 days after emergence shoved significant differences. Shoot fly dead hearts were ranged between 25.64 and 90.74 percent, respectively observed in resistant check IS 2205 and in test line SPH2801. Resistant checks IS 2205 and IS 18551 expressed on par dead hearts and dead hearts in later were statistically equal with dead hearts in test entries test entries SPV2797, SPV2878, and CSV 30F; highest being noted in SPH2801. Correlation coefficients indicated that the glossy and vigorous seedlings had tolerant to shoot fly dead hearts and had no significant impact on stem borer.
