Genetic Variation Studies for Flower Production, Abscission and Pollen Load in Advanced Lines of Pigeonpea [Cajanus cajan (L.) Millsp.]

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