וַתִּדְבַּ֞ק בְּנַעֲר֥וֹת בֹּ֙עַז֙ לְלַקֵּ֔ט עַד־כְּל֥וֹת קְצִֽיר־הַשְּׂעֹרִ֖ים וּקְצִ֣יר הַֽחִטִּ֑ים וַתֵּ֖שֶׁב אֶת־חֲמוֹתָֽהּ׃
און זי האָט זיך געהאַלטן אָן בוֹעַזעס מײדלעך, צו קלײַבן ביז צום סָוף פֿון גערשטנשניט און װײצשניט. און זי איז געזעסן בײַ איר שװיגער.
Rav Hirsch
ידבקו sich anschließen, wie ודבק באשתו (Bereschit 2, 24), ותדבק בגערות בועז (Ruth 2, 23).
Rashbam
ברקיע, seeing that the word ברקיע is in the construct mode, linked to the word following it, i.e. “the sky of the heaven, the ra-kia, the vowel under the letter ר is a brief one, chataf, such as the difference between katzir, harvest, and k’tzir chittim, “wheat harvest,” where the word k’tzir is in the construct mode, belonging to the word chittim, wheat. (Ruth 2,23) להבדיל בין היום ובין הלילה, the Torah had already mentioned earlier (verse 4) that G’d had made a separation between light and dark, so what need was there for the luminaries in order to accomplish this? The fact is that up until this point the precise point when night or day commences and ends had not yet been defined. This came about only when the sunrise and sunset became visible observable phenomena on earth. Similarly, the advent of visible stars in the sky now signaled that dusk had come to an end. להבדיל בין (תחלת) היום ובין (תחלת) הלילה, to separate night from the beginning of the day and day from the beginning of the night.
Kitzur Ba'al HaTurim
וקציר "and harvest" there are 2 in Tanakh this teaching And on the other hand in Parshat Vigesh, go to look there (Gen 45:6) [edit. and also Ruth 2:23]