Effects of gibberellins on flower bud formation and fruit quality in Camellia oleifera
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摘要: 为探索赤霉素对油茶Camellia oleifera花芽形成和果实品质的影响，以湘林系列高产油茶良种为试验材料，在油茶花芽生理分化前期，用不同质量浓度赤霉素对油茶进行叶面喷施。结果表明：不同质量浓度赤霉素对油茶新梢数量均有显著的抑制作用，其中以100 mgL－1赤霉素对油茶新梢数量的抑制作用最大，春梢数量比对照减少38.6%；200 mgL－1赤霉素处理下，油茶新梢节间距显著增加，比对照增加8.4%；300 mgL－1赤霉素处理油茶，对油茶花芽形成和当年果实品质的影响最大：新梢长度和新梢长枝的比例比对照分别增加9.4%和49.2%；花芽体积和质量比对照分别增加23.1%和5.3%；油茶花芽分化率和果实品质也有了显著的提高，单株花芽分化率、果实质量、种子质量、单果果仁质量、出仁率分别达到0.38，20.06 g，10.20 g，9.10 g，45.36%，比对照分别增加29.2%，60.5%，62.9%，70.7%和6.4%。图2表5参26Abstract: To explore the effects of different concentrations of gibberellins （GAs） on flower bud formation and fruit quality in Camellia oleifera, foliage spray experiments were conducted using GA solutions at different concentrations before the physiological differentiation period of Camellia oleifera flower buds. The test material was the high yield Xiang-Lin series. Results indicated that different concentrations of GA decreased the number of new shoots, with the 100 mgL－1 treatment being highest at 38.6%; The 200 mgL－1 treatment had the best effect on the distance between nodes which increased by 8.5%; The 300 mgL－1 treatment had the best effects on flower bud formation and fruit quality; with an improved new shoot length of 9.4% , an increase in the composition of long shoots of 49.2%, and increases in flower bud size （23.1%） and weight （5.3%）. The 300 mgL－1 treatment also improved flower bud differentiation and fruit quality with a flower bud differentiation of 0.38, fruit weight of 20.06 g, seed weight of 10.20 g, kernel weight of 9.10 g and kernel rate of 45.4%. With 29.2%, 60.5%, 62.9%, 70.7% and 6.4% more than that of the control.［Ch, 2 fig. 5 tab. 26 ref.］
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Key words:
- cash forestry /
- Camellia oleifera /
- gibberellins /
- flower bud formation /
- fruit quality
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.06.006
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