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1.根据新、陈种子决定浸种前是否晒种。目前关于杂交水稻种子浸种前晒种能否提高发芽率,仍有不同看法。笔者在实践中认为,当年春制晚用的新种,经过晒种具有打破休眠、提高发芽率作用,而陈种晒种处理,却有降低发芽率的反作用。如本县1995年旱季南繁汕优63种子,由于本身休眠的特性及成熟度的不
1. According to the new, Chen seeds decide whether to seed before soaking. At present, hybrid rice seed soaking before seed soaking can increase germination rate, there are still different views. In practice, the author believes that the new species of spring used later in the year, after sunburn has the function of breaking dormancy and improving the rate of germination, while the seed of sunburn treatment has the opposite effect of reducing germination rate. Such as the county in southern dry season in 1995 Youyou 63 seeds, because of their own characteristics and maturity of sleep is not