论文部分内容阅读
花生种子在水中吸胀时,最初1～6小时内可吸入水量占原种子重60%左右。如此大量的水分快速的进入干种子的细胞,不利于细胞膜和细胞器的修复,表现在种子外渗物较多、电导率增高。PEG处理能够降低种子吸涨期(1～6小时)吸水量,使其控制在20～30%范围且造成水分缓慢进入种子的环境,保护了膜和细胞器的修复功能,因而在提高种子活力上表现突出的效应。人工模拟PEG处理条件,控制种子吸胀前期(1～6小时)水分,并使水分缓慢进入种子的量在20～30%左右,可以得到和PEG处理相近的效应,表现在种子外渗电导率下降,种子活力指数和幼苗活力明显提高。
Peanut seeds in the water expiration, the first 1 to 6 hours inhalable water accounted for about 60% of the original seed weight. Such a large amount of water quickly into the dry seed cells, is not conducive to the repair of cell membranes and organelles, manifested in the seed extravasation more conductivity increased. PEG treatment can reduce the water uptake of seeds (1 ~ 6 hours), control it in the range of 20 ~ 30% and cause the water to slowly enter the seed environment, and protect the membrane and organelle repair function, thus improving seed vigor Outstanding effect. Simulated PEG treatment conditions, the control of seed pre-swelling (1 to 6 hours) of water, and make the water slowly into the seeds in the amount of 20 to 30%, and PEG treatment can be similar effects, the performance of the seed extravasation conductivity Decline, seed vigor index and seedling vitality increased significantly.