Data · dataset · 2026
The effects of different growth regulators on the length of above-ground stems and vines, yield and quality of sweet potatoes in the years 2024-2025
Listed in ScienceDB
The tested sweet potato variety is the fresh and processing dual-use variety Xuzishu 8, which was selected and bred by Xuzhou Agricultural Science Research Institute in Xuhuai, Jiangsu Province and widely planted in major potato regions across the country.
Description
The field experiment was conducted at the Jiangzhuang Sweet Potato Science and Technology Innovation Base of Xuzhou Agricultural Science Research Institute in Xuhuai, Jiangsu Province (34 ° 29'N, 117 ° 22'E).
The soil type was sandy ginger black soil, with a pre planting soil pH of 6.57, organic matter of 25.29 g · kg-1, total nitrogen of 1.45 g · kg-1, available phosphorus of 19.97 mg · kg-1, and rapidly available potassium of 154.33 mg · kg-1. Apply compound fertilizer (N: P2O5: K2O ratio of 15:15:15) at a rate of 600 kg · hm-2 before ridge formation, mechanically form ridges with a width of 1 meter, a height of 30-35cm, and a planting density of 60000 plants · hm-2.
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The experiment was planted on May 6th and harvested on October 12th in 2024; The experiment was planted on April 25th and harvested on October 24th in 2025. Eight treatments were set up for the experiment: blank control (CK), paclobutrazol (T1), potassium dihydrogen phosphate (T2), potassium hypophosphite (T3), potassium enophosphate (T4), potassium dihydrogen phosphate+brassinolide (T2+B), potassium hypophosphite+brassinolide (T3+B), and potassium enophosphate+brassinolide (T4+B).
Each process is repeated 3 times, with a cell area of 48 m2 per repetition. Samples were taken on the 60th, 80th, and 100th day after planting, and the aboveground leaf area index was measured in the field. Three consecutive sweet potato plants were dug and brought back to the laboratory for testing the vine length of each branch. The total vine length and average vine length were calculated; Cut 5 cm of stem tips (including heart leaves) in the field and quickly freeze them in liquid nitrogen for the determination of lignin and hormone content.
During the harvest period, all the aboveground parts of 2 rows (with an area of 16 m2) that have not been sampled will be harvested and weighed for each repetition. Potato blocks will be excavated to measure yield, and the aboveground biomass (fresh weight), underground potato block yield (fresh weight), and root shoot ratio will be calculated. Take 3-5 evenly sized potato chunks for measuring nutritional quality. The contents of indole-3-acetic acid (IAA), abscisic acid (ABA), and zeatin (ZT) in the stem tips were determined using a Liquid Chromatography Mass Spectrometer (LC-MS, AB SCIEX 4600).
The IAA standard curve is Y=15408752.34X-12098.04, the ABA standard curve is Y=99570620.39X+61069.88, the ZT standard curve is Y=14235984.69X+1750.29, and the R2 values are all 0.9999. After peeling and shredding the potatoes, they were dried and ground into powder. The starch, reducing sugar, soluble sugar, and protein content were measured using near-infrared spectroscopy VECTOR22/N (BRUKER Co., Germany).
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.cjae.00157 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Heart 75% · Horticultural production 70% · Mass spectrometry 65%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.cjae.00157 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[anatomy].local:anatomy:heart | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[field].anzsrc:group:3008 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (70%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:mass-spectrometry | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |