2016年8月22日
Effect of temperature and underground storage of stem sections on emergence and establishment of nursery plants of dwarf Napier grass (Pennisetum purpureum Schumach)
The 17th Asian-Australasian Association of Animal Production Societies Animal Science Congress
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- 記述言語
- 英語
- 会議種別
- 口頭発表(一般)
- 主催者
- Asian-Australasian Association of Animal Production Societies
- 開催地
- Fukuoka, Japan
Dwarf, late-heading (DL) Napier grass has a sufficient combination of yield and quality potential under both cut-and-carry and grazing uses. Since this species rarely produces viable seed, it must be propagated in the winter. The objective of this study was to determine the emergence from nodal cuttings under several storage methods to establish labor-saving, efficient nursery storage methods for DL during the winter. In Experiment 1, ten stems possessing ten nodes were stored in a plastic container with a dehumidifying agent under room- or low-temperature conditions in a refrigerator for 0, 1, 2, 3 or 4 months. In Experiment 2, ten-node and one-node stem sections of DL were stored horizontally at 10 cm, 25 cm or 40 cm below the ground. After 4 months of storage, the stem sections were dug out and both of the ten-node stem sections were cut into single nodes. The one-node stem sections were then transplanted perpendicularly into the soil. In both experiments, the emergence of nursery plants was counted every month from 0, 1, 2 and 3 months after planting to obtain the established percentage of nursery plants after 3 months. In Experiment 1, temperature did not affect the emergence