旱地花生开花规律及有效花终止期的研究

Studies on flowering habit and closing date for effective flower in dryland peanut

旱地花生出苗后３０ｄ左右始花，花期６０ｄ。始花２０ｄ后进入盛花期，有７０％～８０％的花在始花至盛花期内开放。挂牌标记各期果针入土结实的结果表明：旱地花生有效花终止期为始花后３０ｄ，有效果针入土终止期在收获前６０ｄ。

The results from a field experiment showed that the initial flowering stage started about 30 days after emergence of seedling in dryland peanut. The flowering period was 60 days. From initial flowering stage to blooming stage was 20 days, in which producing about 70%～80% flowers, the closing date for effective flower and effective peg were 30 days after initial flowering and 60 days before harvest respectively.