Use jiē only for plants producing fruit or seeds — 开花结果, 结瓜, 结实 (to bear fruit). The same 结实 written identically but toneless means sturdy. Taiwan Mandarin often levels this reading back to jié.
mistakes
Don't read 结果 (result/outcome) as jiē — that's the abstract noun. 结果 with jiē only appears in literal botanical contexts and idioms like 开花结果.
Silk radical on the left — the left-side form of 糸. For the jiē reading the thread-knot imagery is metaphorical: a fruit hanging from a stem reads as a knot the plant ties at the end of a branch.
Right side 吉 is the phonetic. The jiē reading is a level-tone variant of the jié pronunciation — same character, same phonetic, tone flattened in the agricultural-yield sense.
