Nedarim 6 - October 31, 6 Cheshvan

Study Guide Nedarim 6 Abaye holds that yadot (cut-off sentence) of a vow is considered a vow. The Gemara raises two difficulties against Abaye from braitot. The questions are each resolved in different manners. Rav Papa asks if yadot are effective in kiddushin, betrothal, or peah, designated a corner of your field for the poor. In what case is the question asked? No answer is given. Can we infer from the example brought for peah that one can make one's entire field peah? Why is there deliberation regarding yadot for peah?