Flowering Habit, Pollination Patterns and Seed Setting in Astragalus membranaceus Bunge
2000
Kim Young-Guk | Seong Nak-Sul National Crop Experiment Station, RDA, Suwon (Korea Republic)
This study was carried out to obtain the basic informations on the flowering habit, pollination patterns and seed setting in Astragalus membranaceus. The first flowering appeared at the 20~22 node on main stem and there is the indeterminate inflorescence that the flowering progress developed toward the tip of the main stem and also toward the tips of branches. According to the flowering time, the number of peduncles were increased in early of Aug. Then, the number of bearing pods and that of seed setting were increased at that time. The length of peduncles with small flower was 6.6~7.3cm, and the number of small flowers were 13~17 per peduncles. The percentage of seed setting was 30~45% per peduncles and seeds were 4.8~5.3 per pod in peduncles. On 30 days after pollination, the pod was developed with the length about 3.8 cm and the width about 8 mm and the seeds were 7.3 per pod. According to pollination treatment, wrapping setted no seeds and the artificial pollination setted seeds about 5% in late of Jul. to late of Aug. but increased about 13% of seed set after early of Sep. in A. membranaceus.
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