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俗话说:春华秋实,是说大多数树木春天开花,经过一个夏天的生长发育,到了秋天,果实便逐渐成熟了。但是,各种树木果实(种子)的成熟形态很不一样,用什么方法来确定种子的成熟期呢?根据科学总结,种子的成熟时期通常可以根据果实外部特征来确定,一般果实在达到成熟时,果皮多由绿色变为较深暗的颜色。如荚果、蒴果、翅果等果皮多由绿色变为褐色,同时水分降低,果紧缩变硬。而球果类,如杉木,云南松、思茅松等变为黄褐色,不过落叶松是卵黄色,球果都会微裂。壳斗科的树
As the saying goes: Chunhua Qiu Shi, is that most trees bloom in spring, after a summer of growth and development, in the fall, the fruit will gradually mature. However, the maturation patterns of various tree fruits (seeds) are very different. What methods are used to determine the maturity of the seeds? According to the scientific summary, the maturation period of the seeds can usually be determined according to the external characteristics of the fruits. When the average fruit reaches maturity , Peel and more from green to darker color. Such as pods, capsules, samara and other peel and more from green to brown, while reducing moisture, fruit firm hardening. Cones, such as Chinese fir, Pinus yunnanensis, and pine cedar, turn yellowish brown, but the larch is egg yolk and the cones tend to crack. Fagaceae tree