The absorbing capacity of the germinating seed is negatively correlated to the quantity of the local precipitation, but positively correlated to the weight of the seed bracts.

• 种子萌发时的吸水量与其原产地的降水量呈负相关，而与种子苞片的重量呈正相关，其中生长在恶劣生境条件下的材料，苞片毛较重而密，种子吸水量较高；