author(s)
Saboor Naeem, Muhammad Abrar, Muhammad Adil, Muhammad Adil Younis and Ayesha Riaz

abstract
The current study was conducted at Agriculture Research Institute Ratha Kulachi, Dera Ismail Khan in 2014, to study the efficacy of pollinators on Black cumin yield, number of seeds/capsule, seeds/plant and capsules/plant and seed quality (size) grown in recommended (25cm) and dense (10cm) plant to plant distance. The experiment was performed in Randomized Completely Block Design (R.C.B.D) and was comprised of three treatments i.e. plants in recommended and caged condition (T1), Plants in recommended and open condition (T2) and plants in dense and open condition (T3), with four (4) replications. One treatment in each replication with recommended grown plants were caged with nylon cloth with mesh no. 49/cm². Seeds were collected and taken to the laboratory. It was found that yield (kg/ha), No. of seeds/capsules, No. of seeds/plant, No. of capsules/plant, 100 seed weight (gm) and seed quality i.e. size (length/width in “mm”) were highest from T2 i.e. 1700, 95, 855, 9, 0.28 and 2.49/1.37 respectively, while lowest yield, 100 seed weight and seed quality were recorded from T1 i.e. 1050 kg/ha, 0.24gm and 2.44mm in length and 1.29mm in width respectively. Least number of seeds per capsule (56), number of seeds per plant (392) and number of capsules per plant (7) were collected from T3.