Growth analysis of sideoats grama [Bouteloua curtipendula (Michx.) Torr.] in different plant strata
This study evaluated the growth patterns of sideoats grama [Bouteloua curtipendula (Michx.) Torr.] across its basal (BS), middle (MS), and apical (AS) strata. The experiment began from April to August 2022 at the Renewable Natural Resources (RNR) greenhouse of the Antonio Narro Autonomous Agrarian...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AcademicPres
2025-06-01
|
| Series: | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
| Subjects: | |
| Online Access: | https://www.notulaebotanicae.ro/index.php/nbha/article/view/14414 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study evaluated the growth patterns of sideoats grama [Bouteloua curtipendula (Michx.) Torr.] across its basal (BS), middle (MS), and apical (AS) strata. The experiment began from April to August 2022 at the Renewable Natural Resources (RNR) greenhouse of the Antonio Narro Autonomous Agrarian University (UAAAN), Saltillo, Coahuila, Mexico. Leaf area index (LAI), specific leaf area (SLA), leaf area duration (LAD), biomass duration (BDM), absolute growth rate (AGR), relative growth rate (RGR), net assimilation rate (NAR), and crop growth rate (CGR), were measured at 14-day intervals over 120 days after sowing (DAS). Means were compared using ANOVA and Tukey’s HSD post-hoc test (p < 0.05). At 92 DAS, the basal stratum exhibited a maximum LAI of 2.83. The SLA was higher in apical stratum at 120 DAS, reaching 679.1 cm2 g-1. The highest LAD was recorded in middle stratum at 92 DAS, with a value of 7302.2 cm² day-1. The highest BMD was recorded in stratum BS at 120 DAS, with a value of 523 g day-1. The AGR was higher in stratum BS (p ≤ 0.005), with maximum values recorded at 92 DAS, reaching 0.694 g day-1. The RGR showed the highest growth in basal stratum (p ≤ 0.005), with a maximum growth recorded at 50 DAS of 0.192 g g-1 day-1. Regarding NAR, the highest value was observed in basal stratum at 50 DAS, with 0.0048 g cm2 day-1. The highest values were also present in stratum BS at 92 DDS, with a value of 0.00364 g cm² day-1. The basal stratum showed the greatest increase in all the variables measured, highlighting in RGR, AGR and NAR, indicating its greater productive potential and better-quality forage, useful to optimize management and productivity in pastures with sideoats grama.
|
|---|---|
| ISSN: | 0255-965X 1842-4309 |