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陈国婵, 郭晓春, 蒙进芳, 等. 广南县油茶芽苗砧嫁接育苗技术研究[J]. 四川林业科技, 2021, 42(6): 112−119. DOI: 10.12172/202103180001
引用本文: 陈国婵, 郭晓春, 蒙进芳, 等. 广南县油茶芽苗砧嫁接育苗技术研究[J]. 四川林业科技, 2021, 42(6): 112−119. DOI: 10.12172/202103180001
CHEN G C, GUO X C, MENG J F, et al. Study on grafting seedlings technology of camellia oleifera bud rootstock in Guangnan County[J]. Journal of Sichuan Forestry Science and Technology, 2021, 42(6): 112−119. DOI: 10.12172/202103180001
Citation: CHEN G C, GUO X C, MENG J F, et al. Study on grafting seedlings technology of camellia oleifera bud rootstock in Guangnan County[J]. Journal of Sichuan Forestry Science and Technology, 2021, 42(6): 112−119. DOI: 10.12172/202103180001

广南县油茶芽苗砧嫁接育苗技术研究

Study on Grafting Seedlings Technology of Camellia oleifera Bud Rootstock in Guangnan County

  • 摘要: 以油茶芽苗砧嫁接育苗为研究对象,研究穗条不同木质化程度、嫁接时间、嫁接绑扎材料、嫁接小苗种植深度、育苗小拱棚高度等对芽苗砧嫁接育苗效果的影响。结果表明:(1)嫩枝、半木质化、木质化3种穗条,木质化接穗成活率最高,达75.56%,其次为半木质化接穗;五个时间段中,木质化接穗的苗高、地径也是最大的,与嫩枝接穗差异显著;(2)不同种植深度试验中,以种植深度为6 cm的成活率最高、地径为最大,与种植深度为4 cm差异显著,且3个处理组均产生了较多的分枝,说明能更快成型,早出圃,早上山;(3)小拱棚高度试验中,处理C(即小拱棚高度为40 cm)的成活率为最高,达78.52%;平均苗高为最大,与最小苗高(即小拱棚高度为30 cm)相差3.1 cm,差异显著;地径方面,以处理B(小拱棚高度为35 cm)的平均地径为最大,与处理C差异显著;(4)不同绑扎材料试验,铝箔片作为绑扎材料,在成活率、苗高方面都高于塑料薄膜绑扎的嫁接苗,铝箔片成活率达85.56%,比塑料薄膜高出25%,差异显著;苗高方面,铝箔片和塑料薄膜的苗高分别为13.9 cm、11.1 cm,相差2.8 cm,差异显著;地径方面则差异不显著;(5)不同嫁接时间中,以5月27日嫁接的与其他试验组差异显著,成活率最高、苗高、生物量积累最大,与6月27日嫁接的、7月10日嫁接的形成显著差异,说明油茶芽苗砧嫁接苗的最佳嫁接时间是5月份,6、7月份嫁接的效果不佳。

     

    Abstract: In order to improve the graft survival rate and shorten the seedling breeding time of Camellia oleifera. Effects of scions with different lignification degrees, different planting depths, different grafting time, different binding materials, and different height of small shed on the graft survival rate and growth amount of Camellia oleifera were studied from 2019 to 2020. The results showed that: (1) The survival rate, ground diameter and height were affected by the five factors above. The survival rate of lignified scion was the highest about 75.56%, which was significantly different from that shoots. The ground diameter of seedling height was also the largest at the five time periods. (2) In terms of different planting depths, the highest survival rate and the highest ground diameter was the depth of 6cm, which was significantly different from that of the control. Moreover, more branches were appeared in all three treatment groups, which indicated that they could formed faster, leave the nursery earlier, and get into the forest earlier. (3) In the height test of small arch shed experiment, the survival rate of small shed height of 40 cm was the highest, reaching 78.52%, and the average seedling height was the largest, which was 3.1 cm different from the minimum seedling height (that is, the height of the small arch shed is 30cm), and the difference is significant. In terms of ground diameter, the average ground diameter of treatment B (the height of small arch shed is 35cm) is the largest, which is significantly different from that of treatment C. (4) In the experiment of different binding materials, the survival rate and seedlings height of aluminum foil as binding material were higher than those of grafted seedlings bound by plastic film, and the survival rate of aluminum foil was 85.56%, which was 25% higher than that of plastic film, with significant difference. But the difference of ground diameter was not significant. (5) In different grafting times, the grafting on May 27 was significantly different from other experimental groups, with the highest survival rate, seedling height and biomass accumulation, which was significantly different from the grafting on June 27 and July 10, indicating that the best grafting time for the grafted seedlings of Camellia oleifera bud rootstock was in May, and the grafting effect in June and July was not good.

     

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