Rhizogenesis and concentration of carbohydrates in cuttings harvested at different phenological stages of once-blooming rose shrubs and treated with rooting stimulants

IF 1.4 4区 农林科学 Q3 AGRONOMY
M. Monder, A. Pacholczak
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引用次数: 9

Abstract

ABSTRACT The aim of this study was to evaluate the effect of rooting stimulators on the rooting of rose cuttings harvested at different phenological stages of the stock plants and on concentrations of carbohydrates in the shoots and leaves of the rooted cuttings. Shoots from once-blooming, difficult-to-root cultivars Duchesse d’Angoulême, Hurdals, Maiden’s Blush, Mousseuse Rouge were cut at the phenological stages: flower buds closed; all flowers open; immediately after petal shedding; and 7–14 days after petal fall. Single node stem cuttings were treated with rooting preparations containing either 0.4% IBA (Ukorzeniacz Aaqua) or 0.2% NAA (Ukorzeniacz Baqua) or with biostimulants Bio Rhizotonic, Root JuiceTM or Bio Roots. The phenological stage of the stock plant shoots had an important role in the propagation of the cultivars. Effects of IBA, NAA and the biostimulants depended on the phenological stage and the cultivar. Cuttings of all cultivars from shoots with closed flower buds had good rooting ability despite low concentrations of total soluble and reducing sugars in the plant tissue. In Hurdals and Maiden’s Blush, none of rooting stimulators improved the rooting percentage in cuttings from shoots collected at 7–14 days after petal fall, which had a low rooting ability. Concentrations of reducing and total carbohydrates in leaves and shoots of cuttings harvested at 7–14 days after petal fall were not correlated with the rooting parameters. The use of biostimulants can be recommended to stimulate rooting of these once-blooming roses instead of preparations containing IBA or NAA.
曾花玫瑰不同生育期插条生根及碳水化合物浓度的研究
摘要本研究旨在评价生根刺激剂对砧木不同物候期采收的月季插枝生根及生根插枝茎叶碳水化合物浓度的影响。一次开花、难根的品种Duchesse d 'Angoulême、Hurdals、Maiden’s Blush、Mousseuse Rouge的枝条在物候阶段被剪断:花蕾闭合;百花皆开;花瓣脱落后立即脱落的;花瓣掉落后7-14天。单节茎扦插用含0.4% IBA (Ukorzeniacz Aaqua)或0.2% NAA (Ukorzeniacz Baqua)的生根制剂或生物刺激剂Bio rhizzotonic、Root JuiceTM或Bio Roots处理。砧木枝条物候期对品种繁殖有重要影响。IBA、NAA和生物刺激剂的作用因不同的物候期和品种而异。尽管植株组织中总可溶性糖和还原糖含量较低,但所有品种花蕾闭合的枝条均具有良好的生根能力。两种生根刺激剂均不能提高花瓣落后7 ~ 14天采枝插条的生根率,生根能力较低。花瓣落后7 ~ 14 d采收的插枝叶片和枝条中还原性碳水化合物和总碳水化合物浓度与生根参数不相关。可以推荐使用生物刺激剂来刺激这些曾经开花的玫瑰的生根,而不是含有IBA或NAA的制剂。
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来源期刊
Biological Agriculture & Horticulture
Biological Agriculture & Horticulture 农林科学-农艺学
CiteScore
3.30
自引率
6.70%
发文量
18
审稿时长
>36 weeks
期刊介绍: Biological Agriculture & Horticulture aims to act as the central focus for a wide range of studies into alternative systems of husbandry, and particularly the biological or organic approach to food production. The Journal publishes work of a sound scientific or economic nature related to any aspect of biological husbandry in agriculture, horticulture and forestry in both temperate and tropical conditions, including energy and water utilization, and environmental impact.
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