內生菌根菌在種苗應用此之展望

Abstract

健康種苗是影響生產好壞的重要因素之一，但提供最適種苗生長發育的條件也相當重要。目前許多植物根系均發現有菌根存在，此種共生的狀態對作物生長與健康的影響，已有許多研究報告，顯示作物正常生長菌根乃擔任重要之角色。近年來為挽救本省柑桔產業，全面推展無病毒健康苗木之應用，擬在培育階段導入內生菌根菌，使柑桔苗木生長健康，因此乃從事本省柑桔內生菌根菌之開發研究，期望由柑桔種苗之應用，進而推展到其他作物上。惟目前應用上必須克服接種源生產之問題，則將對內生菌根菌在種苗生產實際應用上大有助益，且可預期的是對解決種苗栽培上的一些問題，將可提供許多幫助。 Healthy seedling is one of the important factors affecting growth and yield of crops. Providing the best conditions to seedlings for growth and development are also important. Currently, a lot of crop species have been found to form mycorrhizae. This symbiotic structure plays an important role in promoting growth of crops including citrus and many other crops. In the past decades, citrus industry in Taiwan was almost destroyed by likubin and soil-borne diseases. Therefore, healthy citrus seedlings via eliminating likubin pathogen and other systematic pathogens growing in sterile soils were used in the nursery. However, sterilization also killed mycorrhizal fungi in soils. Reintroducing mycorrhizal fungi into nursery soils to solve this problem is necessary. Research and development of practical application of VAM fungi for citrus seedlings has been conducted and will be further extended for other ecomonic crops. But inoculum production is still a problem need to be solved today. The results will be beneficial to practical application of YAM fungi and helpful to solve coming problems in seedling production.