Effects of Different Treatments on Nymphoides indica Seed Germination

doi:10.11924/j.issn.1000-6850.casb16090119

Abstract

Abstract: The paper aims to know the seed characteristics and germination condition of Nymphoides indica, the seed morphology (diameter and thousand seed weight) and seed germination characteristics under different illumination, temperature, GA₃ concentration and pH solution treatments were studied. The results showed that: the seed diameter of N. indica was (0.704±0.048) mm, thousand seed weight was (0.1102±0.05) g; the seed had a mature embryo when it abscised from its parent; the rate of seed germination under light condition was higher than that under dark treatment; the over-high or over-low temperature inhibited seed germination, and the optimum temperature was 25℃; a certain concentration of GA₃ solution promoted the seed germination of N. indica, but the concentration should not be too high; N. indica seed had a wide adaptability to pH value, both the seed germination rate and the germination index were higher when the pH value was between 6 and 7. Therefore, the seed of N. indica was light-needing during germination, its optimal temperature was 25℃, the neutral partial weak acid environment was good for germination, and the seed germination rate can reach more than 97 % when the GA₃ concentration was from 50 to 400 mg/L.

CLC Number:

Q949

Chao Xiongxiong and Sun Yan. Effects of Different Treatments on Nymphoides indica Seed Germination[J]. Chinese Agricultural Science Bulletin, 2016, 32(34): 80-84.

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