What is the beginning of the reproductive growth period of rice?
A.End of tillering
B.Panicle emergence
C.Panicles began to differentiate
D.End of jointing
正确答案:Panicles began to differentiate
What is the beginning of the reproductive growth period of rice?
A.End of tillering
B.Panicle emergence
C.Panicles began to differentiate
D.End of jointing
正确答案:Panicles began to differentiate