(Mishnah): If one hangs a vine over part of an Apifeiros (lattice work that supports a trellis), he should not introduce another seed under the rest of it. If he did, it does not prohibit. If new vine branches grew, they are prohibited. The same applies if one hangs vine branches over part of a Serak (non-fruit bearing) tree.

If one hangs vine branches over part of a fruit-bearing tree, one may introduce another seed under the rest of it. If new vine branches grew over the rest of the tree, he must turn it back.

R. Yehoshua once went to R. Yishmael of Kfar Aziz. He showed R. Yehoshua a vine that was hanging over part of a fig tree and asked him, "May I bring another seed under the rest of it?'' R. Yehoshua permitted him. He then took him to Beis Maginaya and showed him a vine that was hanging over part of a beam that was from a sycamore trunk which had many beams. R. Yehoshua told him, "Under this beam is prohibited; under the rest is permitted.''

What is considered a Serak tree? A tree that doesn't bear fruit.

(R. Meir): All trees are considered Serak, except for olive and fig trees.

(R. Yosi): Any tree that whole fields aren't planted with is considered a Serak tree.

(Chizkiyah): The Mishnah's first case was when there were between three and four Tefachim spaces between the poles of the lattice. Less than three is considered closed up; between 3 and 4, the vines will eventually spread there; spaces of more than four are fine (since the vine branches will dip downwards rather than continuing spreading across the lattice).

Question: How far must one distance from the vine before planting (in order not to prohibit the Apifeiror)?

Answer (R. Yaakov bar Idi citing R. Shimon ben Lakish): 4 Amos.

Answer #2 (R. Acha/ R. Chinana citing R. Shimon ben Lakish): 6 Amos.

(R. Mana): I went to Kisarin and heard R. Hoshiya bar Simi say from R. Yitzchak ben Elazar that if there were two Apifeiros within 4 Amos, it is permitted to plant under the second one.

(R. Chinana): A Baraisa disagrees with R. Hoshiya - 'If the way of the vine is for it to spread further, then one may not plant even under the second Apifeiror'.

(Another similar Baraisa) (R. Shimon ben Elazar): If its way is to grow from one Apifeiror to the other, it is like one Apifeiror.

Question: What's the difference between a Serak (non-fruit bearing tree, where if one spread a vine over part of it, the rest of its lattice area may not be planted) and a fruit-bearing tree (where the rest of its lattice area may be planted)?

Answer: (Since a Serak is not an important tree) a person negates it to the vine, but he does not do so for a fruit-bearing tree.

(Mishnah in Maseches Keilim): All leather bottles that became perforated and the hole was closed up by knotting cannot receive Tumah (since the knot is not secure), except the leather bottles of Arabs (who are able to knot it securely). R. Meir says that if there's a temporary knot, they cannot receive Tumah; if it's permanent, they can. R. Yosi says that all tied leather bottles cannot receive Tumah.

Some say that these two opinions (R. Meir and R. Yosi) must be switched around but R. Yaakov bar Acha citing R. Yasa confirmed the current text of the Mishnah.

(R. Yudan): Our Mishnah (Kilayim) supports the current text of the Mishnah in Keilim (as R. Meir holds that a person negates his Serak to the vine, so too a person negates the knot to be part of the leather bottle, making the bottle capable of receiving Tumah). Otherwise, if you would switch the opinions, according to R. Meir, what's difference whether the knot is permanent or temporary?

Answer (D'Bei R. Yannai): For a permanent knot, the leather must be cut in a certain way but until that point, the bottle isn't a Kli (utensil); for a temporary knot, the leather doesn't require cutting, so it's already a Kli as soon as it's tied.