Reference for Orlah 1:5
אִילָן שֶׁנֶּעֱקַר וּבוֹ בְרֵכָה, וְהוּא חָיֶּה מִמֶּנָּה, חָזְרָה הַזְּקֵנָה לִהְיוֹת כַּבְּרֵכָה. הִבְרִיכָהּ שָׁנָה אַחַר שָׁנָה, וְנִפְסְקָה, מוֹנֶה מִשָּׁעָה שֶׁנִּפְסְקָה. סִפּוּק הַגְּפָנִים, וְסִפּוּק עַל גַּבֵּי סִפּוּק, אַף עַל פִּי שֶׁהִבְרִיכָן בָּאָרֶץ, מֻתָּר. רַבִּי מֵאִיר אוֹמֵר, מָקוֹם שֶׁכֹּחָהּ יָפֶה, מֻתָּר, וְמָקוֹם שֶׁכֹּחָהּ רָע, אָסוּר. וְכֵן בְּרֵכָה שֶׁנִּפְסְקָה וְהִיא מְלֵאָה פֵרוֹת, אִם הוֹסִיף בְּמָאתַיִם, אָסוּר:
A tree that was uprooted and it had a rooted shoot [a low lying branch which was bent and planted into the ground] and the tree is now deriving nourishment [only] from the [new] shoot, the old tree now assumes the status of the shoot. If one [bent and] rooted [a series of branches] year after year, and it [the first shoot] became detached, one counts [the number of years for the laws of <i>Orlah</i>] from the time it became detached. [As for] grafted shoots of vines, and grafted vine shoots growing on other grafted, vine shoots, even though he rooted them in the ground, they are permitted. Rabbi Meir says, in a case where the strength [of the graft] is great, it is permitted; but where the strength [of the graft] is lacking it is prohibited. (So too) regarding a [rooted] shoot which has become detached and it is full of fruit, if [the fruit] increased [in size] one two-hundredth part [after its detachment] it is prohibited.