Asexual Propagation by Stem Cuttings of Half-high and Low-bush Blueberries in Soilless Substrates

Q2 Agricultural and Biological Sciences
Jacob D. Schwab, K. Williams, J. Griffin
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引用次数: 0

Abstract

Two experiments evaluated rooting of blueberry in substrates for use in soilless production systems. Apical and basal semi-hardwood stem cuttings of Vaccinium corymbosum x angustifolium ‘Northland' were rooted in rockwool cubes, shredded rockwool, or 3 perlite:1 sphagnum peat moss (v/v). Cuttings were treated with 0.1% indolebutyric acid (IBA) in 1:1 95% ethyl alcohol: water, 0.1% potassium salt of indolebutyric acid (K-IBA), 1:1 95% ethyl alcohol: water, or water. In Expt. 2, basal stem cuttings of ‘Northland' and V. angustifolium ‘Brunswick' were rooted in the same substrates with the addition of coco coir, treated with 1,000 ppm K-IBA, then fertilized weekly (after rooting began) with water, 75 ppm N from 16-4-17 fertilizer or 4-18-38 and Ca(NO3)2 plus MgSO4 fertilizer, all adjusted to pH 4.0. Rooting percentages were calculated, and rooting quality was assessed using a 6-point visual scale. ‘Northland' roots well (>80%) in peat:perlite and coco coir substrates and acceptably in two rockwool substrates (∼50%). ‘Brunswick' rooted acceptably in peat:perlite and coco coir (27% and 41%, respectively), and very poorly in two rockwool substrates (<2%). Rooting of ‘Northland' was not improved with application of 0.1% auxin. Apical cuttings of ‘Northland' had a higher rooting success than basal stem cuttings. Weekly fertilization did not improve root ratings, and had minimal effect on rooting success. Index words: adventitious rooting, auxin, coco coir, hydroponics, indolebutyric acid, rockwool, Vaccinium. Species used: ‘Northland' half-highbush blueberry, Vaccinium corymbosum L. X angustifolium Aiton, ‘Brunswick' low-bush blueberry, V. angustifolium Aiton. Chemicals used: auxin, potassium salt indolebutyric acid, K-IBA; Sigma-Aldrich, St. Louis, MO, USA, auxin, indolebutyric acid, IBA; Sigma-Aldrich, St. Louis, MO, USA, Oasis® 16-4-17 fertilizer, OASIS® Grower Solutions, Kent, OH, USA, ChemGro 4-18-38 fertilizer, ChemGro Hydro-Gardens, Colorado Springs, CO, USA, Ca(NO3)2, Yara North America, Tampa, FL, USA, and MgSO4, PQ Corp., Valley Forge, PA, USA.
半高矮树蓝莓在无土基质中的茎插无性繁殖
两个实验评估了蓝莓在无土生产系统基质中的生根情况。将“Northland”牛蒡x angustifolium的顶端和基部半硬木茎插条植根于岩棉块、碎岩棉或3珍珠岩:1泥炭藓(v/v)中。用0.1%吲哚丁酸(IBA)在1∶95%乙醇:水、0.1%吲哚丁酸钾盐(K-IBA)、1∶95%酒精:水或水中处理插条。在试验2中,‘Northland’和V.angustifolium‘Brunswick’的基部茎插条在相同的基质中生根,添加椰子,用1000ppm K-IBA处理,然后每周(在生根开始后)用水、16-4-17肥料或4-18-38中的75ppm N和Ca(NO3)2加MgSO4肥料施肥,所有这些都调节到pH 4.0。计算生根百分比,并使用6点视觉量表评估生根质量Northland‘在泥炭:珍珠岩和椰子基质中生根良好(>80%),在两种岩棉基质中生根合格(~50%)。’Brunswick’在泥炭中生根良好:珍珠岩和椰子(分别为27%和41%),在两种岩棉基质中生根较差(<2%)。施用0.1%生长素对‘北方’的生根没有改善。“Northland”的顶端插条的生根成功率高于基部茎插条。每周施肥并不能提高生根率,对生根成功率的影响很小。索引词:不定根,生长素,椰子,水培,吲哚丁酸,岩棉,越橘。使用的物种:“Northland”半高丛蓝莓、Vaccinium corymbolum L.X angustifolium Aiton、“Brunswick”低丛蓝莓、V.angustifilium Aiton。所用化学品:生长素、钾盐吲哚丁酸、K-IBA;Sigma-Aldrich,圣路易斯,密苏里州,美国,生长素,吲哚丁酸,IBA;Sigma Aldrich,美国密苏里州圣路易斯,Oasis®16-4-17肥料,Oasis®Grower Solutions,美国俄亥俄州肯特,ChemGro 4-18-38肥料,ChemGro Hydro Gardens,美国科罗拉多州科罗拉多斯普林斯,Ca(NO3)2,亚拉北美,美国佛罗里达州坦帕,以及MgSO4,PQ Corp.,美国宾夕法尼亚州Valley Forge。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of environmental horticulture
Journal of environmental horticulture Environmental Science-Environmental Science (miscellaneous)
CiteScore
1.90
自引率
0.00%
发文量
18
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