The space needed to tend a vineyard is a path 4 cubits wide so that the ox-drawn cart of the vintner may move there. Even though the House of Hillel forbid sowing if the minimal width is less than eight cubits, if somebody sowed illegally on a smaller patch neither the seeds nor the vines become “sanctified” as long as a minimal distance of 4 cubits is observed everywhere (Mishnah 7:3).
Reading of the Rome ms. Most older commentators emend the text to this reading since two parallel rows generate only one space between them. Venice and Leyden: תרין.
In the Venice print: ר׳ יונה, but in the two parallels in Eruvin and Sukkah ר׳ יוחנן. Since the statement is bracketed by statements of R. Simeon ben Laqish and R. Joḥanan, the reading ר׳ יונה would be an anachronism. The Babli in Eruvin 11a reports the statement in the name of R. Simeon ben Laqish. It cannot belong to an Amora two generations younger.
Reading of the Rome ms. and the Venice parallels in Eruvin and Sukkah. Venice print here: שהפיאה.
In both parallels: רבי הושיא.
This is the text of the Rome ms. and of the Venice parallels in Eruvin and Sukkah. The Venice text here is defective: אין תימר מלמעלן לא אמר ר׳ חגי כלום.
The extent of what becomes forbidden to use is detailed in the Halakhah.
Reading of the Rome and the Mishnah mss. Leyden:עשרה .