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以水南一号龙眼为试材,在龙眼树四周打根洞,用蚯蚓粪作根洞填充物,研究了在根洞填充物中加入不同植物生长调节剂对根系生长和果实品质的影响。结果发现,与对照(清水处理)相比,IBA 5 mg/L+NAA 6 mg/L诱导的根数、根粗、根鲜干重比分别提高了317.01%、31.53%、4.98%,果实可溶性固形物含量、可食率、百粒重、产量分别提高了9.00%、4.39%、18.39%、41.10%;IBA 5 mg/L+NAA 5 mg/L诱导的根数、根粗分别提高了549.11%、62.57%,而诱导的根鲜干重比差异不显著,果实可溶性固形物含量、可食率、百粒重、产量分别提高了6.63%、4.14%、29.40%、54.79%;IBA 4 mg/L+NAA 6 mg/L诱导的根数、根粗、根鲜干重比分别提高了54.80%、50.55%、12.11%,果实可溶性固形物含量、可食率、产量分别提高了12.95%、4.75%、19.19%,而百粒重差异不显著。
The effect of different plant growth regulators on the root growth and fruit quality of root-hole filling was studied by using shui-long-longan as test material, rooting holes around longan trees and earthworm excrement as filler. The results showed that IBA 5 mg / L + NAA 6 mg / L induced 317.7%, 31.53%, and 4.98% of root dry weight, root dry weight and fresh weight gain, respectively, compared with the control The content of solid, edible, 100-grain weight and yield increased by 9.00%, 4.39%, 18.39% and 41.10% respectively. The root number and root diameter of IBA 5 mg / L and NAA 5 mg / L increased by 549.11 % And 62.57%, respectively. However, the difference of root dry weight per hectare was not significant. The soluble solid content, edible rate, 100 - grain weight and yield increased by 6.63%, 4.14%, 29.40% and 54.79% / L + NAA 6 mg / L increased the root dry weight, root dry weight and root fresh weight by 54.80%, 50.55% and 12.11%, respectively. The soluble solid content, edible rate and yield increased by 12.95% 4.75% and 19.19% respectively, while the difference of 100-grain weight was not significant.