Evaluation of quantitative and qualitative parameters in cultivated genotypes of Lallemantia iberica (Bieb.) collection of National Plant Gene Bank of Iran in autumn cultivation | ||
| زراعت دیم ایران | ||
| Volume 14, Issue 2, December 2025, Pages 213-230 PDF (1.34 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/idaj.2026.371543.456 | ||
| Authors | ||
| abdollah hasanzadeh* 1; Khoshnod Alizadeh2; Hamid Fanaei3 | ||
| 1Faculty Member, West Azarbaijan Agricultural and Natural Resources Research and Education Center, (AREEO), Urmia, Iran | ||
| 21Horticulture Crop Science Research Department, West Azarbaijan Agricultural and Natural Resources Research and Education Center, (AREEO),Urmia, Iran | ||
| 3Professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran | ||
| Abstract | ||
| Introduction: Medicinal plants play a crucial role in disease prevention and therapeutic applications, and the growing global demand for herbal products has resulted in excessive harvesting from natural habitats, thereby threatening genetic resources. Lallemantia iberica (balangu), a valuable medicinal species of the Lamiaceae family, possesses notable characteristics such as drought tolerance, high economic potential, pharmaceutical value, and the capacity to be cultivated under rain-fed conditions. Given the escalating impacts of climate change and water scarcity in Iran, the identification of high-yielding and stress-tolerant genotypes has become increasingly essential. Accordingly, the present study was conducted with the objective of evaluating different balangu genotypes preserved in the National Plant Gene Bank of Iran and identifying superior genotypes suitable for rain-fed cultivation as well as potential breeding programs Methodology: This research was conducted on 117 balangu genetic accessions collected in 2016, evaluated over three cropping seasons from 2019 to 2022. In the first year, accessions were cultivated in an observational design, and based on performance-related, oil-related and uniformity traits, 49 superior samples were selected. During the second and third years, these genotypes were cultivated in three locations (Urmia, Maragheh and Karaj), under rain-fed conditions, using a randomized complete block design with two replications. Phenological, morphological, seed yield and oil-related traits were recorded, and statistical analysis included ANOVA, and LSD mean comparisons. Research findings: The results revealed that the effects of genotype, year, location and their interactions were significant for most evaluated traits, including seed yield, thousand-seed weight and plant height. Seed yield varied considerably among genotypes; genotypes 1, 14, 22, 23, 24, 36, 39, 40, 43, 44 and 48 produced the highest yields (963.5–999.7 kg ha⁻¹), while genotypes 9, 20 and 29 recorded the lowest yields. The highest thousand-seed weights belonged to genotypes 3, 10, 26, 27, 28, 29, 34 and 42. A positive association was observed between seed yield and biological yield, harvest index and oil yield. Additionally, autumn sowing proved more effective than spring sowing in enhancing seed yield across the studied regions. The study demonstrated substantial genetic diversity among balangu genotypes and confirmed that selection based on traits associated with yield—particularly number of capsules, harvest index and oil yield—can be effective. Genotypes 12 and 33 under irrigated conditions and a group of 25 superior lines under rain-fed conditions were recommended for further evaluation and breeding programs. Promoting the autumn cultivation of this species in cold and semi-cold regions could significantly enhance production stability. | ||
| Keywords | ||
| Lallemantia iberica; Seed and oil yield; Early maturity | ||
| References | ||
|
| ||
|
Statistics Article View: 3 PDF Download: 5 |
||
Journal management system. designed by sinaweb