Allelopathic effects of Panax notoginseng plant extracts on germination and seedling growth of soybean (Glycine max) and corn (Zea mays)

作者：Li, K. M.; Bao, Y. S.; Zhang, Z. L.^*

来源：Allelopathy Journal, 2015, 36(1): 63-73.

• Allelopathic effects
• corn
• germination
• Glycine max
• Panax notoginseng
• seedling growth
• soybean
• Zea mays

We investigated the allelopathic effects of aqueous extracts of seeds and different parts of P. notoginseng on seed germination and seedling growth of soybean (Glycine max) and corn (Zea mays). In soybean, leaf extracts hastened the germination and significantly stimulated the shoot and root length than other extracts, the mean stimulation rate in shoot length was 90%, 49%, 50% and 20% with extracts of leaf, stem, root and seed, respectively. While in root length, it was 70%, 29%, 43% and 18% at extracts of leaf, stem, root and seed, respectively. In corn, the minimum germination was observed with P. notoginseng leaf extracts. Corn seeds treated with leaf extract showed the maximum shoot and root length than stem, root and seed extracts and P. notoginseng seed extract strongly increased the dry weight than other extracts, the mean increasing rate of dry weight reached 7.0%, 0.64%, 8.3% and 22% at extracts of leaf, stem, root and seed respectively. The mean sensitivity index (MSI) indicated that P. notoginseng extracts inhibited the corn seed germination but slightly stimulated the seedling growth. These extracts stimulated both soybean seed germination and seedling growth. The results suggested that the P. notoginseng extracts contain allelochemicals, which affect the germination and seedling growth of corn and soybean, and sowing of soybean instead of corn is a practical approach to avoid inhibition in P. notoginseng cropped soil.

• 出版日期2015-7
• 单位北京中医药大学