Abstract
Background: Flower bud/s, flower/s and fruit/pod/s abscission is one of the momentous bottlenecks in pulses in general and pigeonpea in particular, resulting in poor reproductive efficiency. Abscission occurs both before and after fertilization. Knowledge on nature and extent of genetic variation available in the genotypes help breeders for planning breeding programmes to identify genotypes that retain maximum flowers hence increase pod set. Methods: A total of 19 advanced stabilized breeding lines including 2 local checks (GRG-811 and TS-3R) were evaluated in randomized block design (RBD) with two replications in rain fed and irrigated condition at Zonal Agricultural Research Station (ZARS), Kalaburagi, during kharif 2018. Genetic variation for flower production, abscission and pollen load were studied and interpreted. Result: The genotypes viz., RIL-63, RIL-59, GRG-152 and KRG-224 showed good number of pods set per plant in rainfed condition and 3 Genotypes WRP-R-29-4, KRG-224 and ICPL-15017 in irrigated condition. The genotype KRG-224 Sets more pods under both conditions. Pollen grains load was more in undropped flower compared to dropped flower.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
