Influence of a plant growth booster on the growth and quality parameters of Juniperus polycarpos seedlings under nursery conditions

IF 1.1 Q4 ENVIRONMENTAL STUDIES

Forests, Trees and Livelihoods Pub Date : 2023-08-03 DOI:10.1080/14728028.2023.2243492

P. Negi, Sandeep Sharma, N. Thakur

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引用次数: 0

Abstract

ABSTRACT An experimental trial was conducted to study the influence of a plant growth booster (PGB) on the seedling growth and quality parameters of Juniperus polycarpos in nursery conditions. One-year-old seedlings were applied with seven different doses of a PGB composed of humic acid (12%), fulvic acid (4.3%), seaweed extract (6.9%), and amino-based granules (6.8%) to study their effect on seedling growth and quality parameters. After 5 years in the nursery, maximum values of seedling growth parameters viz. shoot length (43.10 cm), root length (42.00 cm), collar diameter (5.93 mm), number of roots (41.00), fresh shoot biomass (18.83 g), fresh root biomass (5.87 g), total fresh biomass (24.71 g), dry shoot biomass (10.11 g), dry root biomass (3.06 g), and total dry biomass (13.17 g) were recorded in seedlings that were given 2.5 g PGB/seedling, as compared to the seedlings where no PGB was applied. The maximum value of quality parameters viz. volume index (1515.60) and quality index (1.25) was also observed in seedlings that received 2.5 g PGB/seedling. The study suggests the application of 2.5 g PGB per seedling for the production of quality planting stock of J. polycarpos in the nursery.

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苗圃条件下植物生长促进剂对刺柏幼苗生长及品质参数的影响

摘要通过试验研究了植物生长促进剂（PGB）在苗圃条件下对刺柏幼苗生长和质量参数的影响。用7种不同剂量的PGB对一年生幼苗进行施用，研究其对幼苗生长和质量参数的影响。PGB由腐殖酸（12%）、黄腐酸（4.3%）、海藻提取物（6.9%）和氨基颗粒（6.8%）组成。在苗圃中5年后，幼苗生长参数的最大值，即芽长（43.10 厘米），根长（42.00 cm），衣领直径（5.93 mm），根数（41.00），鲜梢生物量（18.83 g），鲜根生物量（5.87 g），总新鲜生物量（24.71 g），干茎生物量（10.11 g），干根生物量（3.06 g）和总干生物量（13.17 g）在给予2.5 g PGB/幼苗。质量参数的最大值，即体积指数（1515.60）和质量指数（1.25）也在接受2.5 g PGB/苗。该研究建议应用2.5 g PGB，用于在苗圃中生产优质的J.polycarpos种植料。

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来源期刊

Forests, Trees and Livelihoods Agricultural and Biological Sciences-Forestry

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Forests, Trees and Livelihoods originated in 1979 under the name of the International Tree Crops Journal and adopted its new name in 2001 in order to reflect its emphasis on the diversity of tree based systems within the field of rural development. It is a peer-reviewed international journal publishing comments, reviews, case studies, research methodologies and research findings and articles on policies in this general field in order to promote discussion, debate and the exchange of information and views in the main subject areas of.