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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.9, no.2, 1996³â, pp.151-155
°í·Á¾û°ÏÄû ( °ïµå·¹ ) ÀÇ Á¾ÀÚ¹ß¾Æ ¹× Â÷±¤Àç¹è È¿°ú ±¸¸í ( Improvement of Germination Rate by Low temperature and Development of Effectve Shading Cultivation of Cirsium setidens under Rain Shelter in Highland )
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For improvement germination rate of Cirsium setidens, wet seeds were storaged for 20 to 80 days at $4^{circ}C$ and germinated at $18^{circ}C$ in the dark or light condition. To assess the effects of shading and plant age on the growth, fresh yield and seed yield under rain shelter in highland at altitude of 800m above sea level, seeds were sown in an open field in late september,1990. In early May the next the seedlings were transplanted for vegetatable and seed production in the plastic houses for rain shelter. They were grown from 1991 to 1993 in the houses covered with the shading nets ranging from 0 to 70% for vegetable production and 0 to 50% for seed production. Germination rate inceased as the storage period lengthened, and the rate came to $60sim80%$ at 60days after germination. It was more effective in lighting than in darkness. For vegetable production, the shading net treatments showed more values in almost the characters checked at the third year than the non-shading treatment. No. of stem, no, of leaves, stem length and degree of softening were no different between shading net treatments, but the other characters were significantly different. Ratio of survival, density of chlorophyll and ratio of dry matter of plants were highest in the plots of 50%, 70%, and 30% of shading, respectively. The highest fresh yield was recorded from 2-year plants, 70% of shading from them showed the greatest yield. The highest seed yields were produced 2-year-old plants of non-shading plot. For seed production, the non-shading treatment is best, and the highest seed yields were obtained in both the second and third years.
 
Ű¿öµå
Seed germination;low temperature;storage period;shading net treatment;Cirsium setidens;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.9, no.2, 1996³â, pp.151-155
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920278329)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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