Effect of nutrient and moisture on the growth and reproduction of Epilobium hirsutum L., an endangered plant

Abstract

Background: In this study, the growth and reproductive response of seedlings, grown in plastic pots with sand, to moisture and nutrients were analyzed in order to study the environmental conditions required to create an alternative habitat for Epilobium hirsutum L., an endangered plant. Results: Vegetative and reproductive growths of Epilobium hirsutum L. are accelerated with increase in moisture and organic matter content in the soil. Among vegetative organs, the number of runners related to asexual reproduction was the highest when the moisture content was over 25% and nutrient content between 7 and 14% in the soil. But the number of flowers related to flowering responses, among reproductive organs, was the highest when the moisture content was maintained at 75% and when nutrient content was 21% in the soil. The number of seeds, related to sexual reproduction, was the highest when the moisture content was over 25% and nutrient content between 14 and 21%. Conclusions: The study results show that a place with high moisture and nutrient content in the soil is advantageous to asexual and sexual reproduction of Epilobium hirsutum L. Therefore, we must serve periodically nutrient and seeds to sustain population in in situ conservation. Furthermore, it is advisable to create in riverside where abundant nutrient content have, making alternative habitat of Epilobium hirsutum L. Also, we must find species that have high contribution degree index through vegetation survey.

Effects of Organic Fertilizer Mixed with Food Waste Dry Powder on the Growth of Chinese Cabbage Seedlings

“…The over-application of fertilizers, using water irrigation, can cause a micronutrient imbalance in soil and nutrients available to plants. Among the nutrients, organic matter increases the chemical and physical properties of soil that contribute to plant growth and development [54].…”

The effects of LED light quality on ecophysiological and growth responses of Epilobium hirsutum L., a Korean endangered plant, in a smart farm facility

“…Unlike the results from the branches and stolons, the length and number of leaves of the main stem did not show any difference following the adjustment of the ratio of blue light to red light and white light treatment. When Epilobium hirsutum L. was grown in soil in Asia areas, the length of the aerial part was related to the contents of soil moisture and soil organic matter (Lee et al 2017). Therefore, the length of the main stem is judged to be determined by the contents of soil moisture and soil organic matter rather than by light stress and the net photosynthetic rate.…”

The appropriate planting time for the profitable production of the quality seed of kenaf (Hibiscus canabinus L.) in southwestern Nigeria

“…However, the plants in the forest agro-ecology recorded high plant height when planted in June as a response to the availability of soil and environmental moisture. Lee et al (2017) have reported that vegetative and reproductive growths of Epilobium hirsutum L. are accelerated with the increase in moisture and organic matter content in the soil. Ogunniyan et al (2016) have also reported that kenaf is sensitive to the amount of rainfall, especially during the vegetative growth.…”