The megagameto-phyte abortion and flowering bud failing were the direct causes for the trees being fruit-less.

雌配子体的败育和大量落蕾是宜昌泡桐不结实或少结实的直接原因。

youdao

The megagameto-phyte abortion and flowering bud failing were the direct causes for the trees being fruit-less.

雌配子体的败育和大量落蕾是宜昌泡桐不结实或少结实的直接原因。

youdao