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Characteristics and Cultivation Key Points of the Yihongyou No. 1 Hybrid Gastrodia

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"Yihongyou No. 1" hybrid Gastrodia is a new hybrid Gastrodia variety bred by using wild robust red Gastrodia collected in high-altitude mountain areas as the male parent, and excellent red Gastrodia cultivated artificially in indoor boxes on the Jianghan Plain as the female parent, through sexual cross-pollination and seed setting between different plants and different flowers from different locations. It is suitable for both indoor cultivation in low-altitude plain areas and outdoor imitative-wild cultivation in high-altitude mountain and hilly areas at 500-1800 m. It fills the gap in China of lacking excellent sexually hybrid varieties for planting Gastrodia in high mountains, hills, and especially plain areas.

"Yihongyou No. 1" hybrid Gastrodia is a new hybrid Gastrodia variety bred by using wild robust red Gastrodia collected in high-altitude mountain areas as the male parent, and excellent red Gastrodia cultivated artificially in indoor boxes on the Jianghan Plain as the female parent, through sexual cross-pollination and seed setting between different plants and different flowers from different locations. It is suitable for both indoor cultivation in low-altitude plain areas and outdoor imitative-wild cultivation in high-altitude mountain and hilly areas at 500-1800 m. It fills the gap in China of lacking excellent sexually hybrid varieties for planting Gastrodia in high mountains, hills, and especially plain areas.

1. Characteristics: "Yihongyou No. 1" hybrid Gastrodia has been promoted and planted for nearly 5 years in Sichuan, Chongqing, Yunnan, Guizhou, **, Gansu, Shaanxi, Henan, Shandong, Hebei, Tianjin, Jilin, Heilongjiang, Hainan, Fujian, Zhejiang, Jiangxi, Guangxi, Anhui, Hunan and other provinces and cities, and confirmed by outdoor imitative-wild cultivation at the Yichang Three Gorges ten-thousand-mu Gastrodia base and indoor cultivation of 1 million boxes (bags) on the Jianghan Plain in Hubei. It has good commercial quality, with round and plump individual tubers, generally 200-500 g fresh weight, and excellent quality. In particular, its reproductive capacity is extremely strong, with a large propagation coefficient, and its yield is more than 30% higher than conventional vegetative subculture varieties. The suitable growth temperature is 14-28 degrees C, the optimum temperature is 20-25 degrees C, and the total accumulated temperature during the growth period is about 3800 degrees C.

2. Cultivation key points: For outdoor bed-type soil-covered imitative-wild cultivation in mountainous areas, companion-planted with "Yifeng No. 4" branch-log Armillaria strain, sow 500 g of Gastrodia seed per sq m, which can produce 10-15 kg of fresh Gastrodia; for indoor box-type soilless sand-covered cultivation on the plains, sow 150-200 g of Gastrodia seed per box (50 x 50 x 35 cm), which can produce 4-5 kg of fresh Gastrodia; for indoor bag cultivation, sow 100-120 g of Gastrodia seed per bag (40 x 35 cm), which can produce 1.5-2 kg of fresh Gastrodia.

3. Harvesting: For outdoor winter planting (November to January of the following year), dig 10-12 months after sowing; for spring planting (March to May), dig 7-8 months after sowing; for indoor box (bag) cultivation, with artificial temperature regulation at about 20 degrees C, it can be harvested in 6 months, and 2 cultivation cycles can be carried out per year.

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