Allowing the wife or son of a worker to collect: Bava Metzia 12a-b
Allowing the wife or son of a sharecropper to collect: Bava Metzia 12a
Leket
Point when Leket becomes permitted to the Community at large, as the paupers have given up: Taanit 6b; Bava Metzia 21b
What happens if the owner declares Leket ownerless at the moment when the majority of it has separated from its stem: Temurah 25a
Shichichah
Status of Shichichah where the owner isn't present: Bava Metzia 11a
Sheaves of 3 stalks or more are not subject to Shichichah: Shabbat 113b
Point when Shichichah becomes permitted to the Community at large, as the paupers have given up: Taanit 6b
Shichichah which is still before the harvester in the field isn't Shichichah: Bava Metzia 11a
There is a prohibition against going back for Shichichah: Bava Metzia 11a
Throwing already-collected Shichichah atop other Shichichah to acquire it: Bava Metzia 10a
Falling atop the Shichichah: Bava Metzia 10a
Spreading a garment atop the Shichichah: Bava Metzia 10a Acquisition via one's field for Shichichah therein, if the owner isn't there: Bava Metzia 11a
Shichichah which is initially forgotten, and then remembered, while the owner is/isn't there: Bava Metzia 11a
The requirement of leaving this produce, if one declares his field ownerless but then harvests it for himself: Nedarim 44b; Temurah 6a