Evidence map›Paper›PMID 42481521›Full record

ArticleScientific reports2026

Paclobutrazol and planting density improved onion growth, reduced lodging and enhanced seed yield and quality in mid-hills of Himachal Pradesh.

Kamrul Nissa, Rajender Sharma, Narender Kumar Bharat, Devinder Kumar Mehta, Priyanka Thakur, Arshi Sultanpuri, Anubhav Thakur, Nitin Sharma

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Kamrul NissaDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Rajender SharmaDepartment of Vegetable Science, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Narender Kumar BharatDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Devinder Kumar MehtaDepartment of Vegetable Science, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Priyanka ThakurDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Arshi SultanpuriDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.
Anubhav ThakurDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India. anubhavthakur97@gmail.com.
Nitin SharmaDepartment of Seed Science and Technology, College of Horticulture, Dr Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, 173230, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To address the increasing demand for Onion globally, enhancing seed production is crucial. In India, mid hill regions of Himachal Pradesh offer favorable conditions for onion seed production. The experimental site in Himachal Pradesh is located at an altitude of 1183 m above mean sea level in the mid-hill sub-humid temperate agro-climatic zone. The region is characterized by mild summers and cool winters, receiving an average annual rainfall of 1000-1300 mm. During the growing season, the maximum temperature ranges from 27.1 to 29.0 °C while the minimum temperature varies between 1.5 °C and 19.4 °C. However, frequent lodging of scapes due to western disturbances hampers seed yield and quality. A two-year field study (2022-2023 and 2023-2024) evaluated the efficacy of paclobutrazol (PBZ) bulb dipping as a solution in onion cv. Palam Lohit. Evidence from study indicated that bulb dipping in 100 ppm PBZ for 18 h + spacing 30 × 30 cm (T12), yielded optimal outcomes. This treatment led to reduced seed scape height (71.42 cm), enhanced leaf greenness (83.39 SPAD), delayed flowering (131.67 days) and minimized lodging (18.92%). Moreover, it achieved the highest plot yield (156.00 g) and economic return with a benefit-cost ratio of 3.26:1. Thus, bulb dipping in 100 ppm PBZ for 18 h + spacing 30 × 30 cm (T12) is recommended to enhance onion seed yield and quality under challenging ago- climatic conditions, after multi-location validation.

Indexed as

OnionsSeedsTriazolesIndiaSeasonsTemperaturepaclobutrazolTriazolesBulbDippingHeight reductionOnionPhysiologySeedSeed quality

Identifiers

PMID42481521
PMCPMC13389244

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.