Tolerance of Faba Bean Plants (Vicia faba) to Partial Defoliation

Casierra–Posada, Fánor; Cutler, Joseph; Reyes-Copasachoa, D.

doi:10.1007/s10343-017-0401-0

Cited by 2 publications

(6 citation statements)

References 15 publications

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“…Unlike the results found in the current study for allometric coefficients, Casierra-Posada et al (2017) found modifications in the DM distribution pattern in the different plant tissues of Vicia faba (broad beans) with 50% defoliation. The amount of accumulated biomass decreased in the roots but increased in the leaves when compared with the control plants.…”

Section: Discussioncontrasting

confidence: 99%

“…It can therefore be assumed that partially defoliated plants managed to compensate for approximately 38.8% of the leaf area in response to the partial removal of the leaf area. This same effect was observed by Casierra-Posada et al (2017), who encountered that V. faba plants subjected to partial defoliation decreased total leaf area at the end of the assay to 38.8% in plants with 50% partial defoliation compared with the control plants without defoliation. Casierra-Posada et al (2017) expected that the final leaf area would be consistent with the intensity of partial defoliation in implemented treatments.…”

Section: Discussionsupporting

confidence: 81%

“…Although no difference was found between treatments for the specific leaf area in the present study, Casierra-Posada et al (2017) indicated that the value of this variable decreased by 25% in defoliated V. faba plants when compared with a control group. The leaf weight ratio values recorded in the present study showed nonsignificant difference between the treatment means; however, the value of this variable increased 14.6% in V. faba plants subjected to 50% defoliation compared with control plants (Casierra-Posada et al, 2017). Casierra-Posada et al (2017) mentioned that when leaf area was partially reduced, stem growth increased, thus affecting root growth.…”

Section: Discussioncontrasting

confidence: 48%

“…The leaf weight ratio values recorded in the present study showed nonsignificant difference between the treatment means; however, the value of this variable increased 14.6% in V. faba plants subjected to 50% defoliation compared with control plants (Casierra-Posada et al, 2017). Casierra-Posada et al (2017) mentioned that when leaf area was partially reduced, stem growth increased, thus affecting root growth. However, the root to shoot ratio after defoliation was restored to a value similar to that of plants before partial leaf removal.…”

Section: Discussioncontrasting

confidence: 48%

“…Based on the variables applied to lettuce plants in which nonsignificant difference was found between treatments, it can be inferred that L. sativa shows tolerance to partial defoliation by leaf area removal. In addition, the tolerance of this vegetable is comparatively greater than in V. faba plants (Casierra-Posada et al, 2017). Boogaard et al (2001) reported a drastic decrease in the leaf area ratio after defoliation; however, the value of this variable increased over time in partially defoliated plants in which half of the leaves were removed and reached values of intact plants.…”

Section: Discussionmentioning

confidence: 89%

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Compensatory growth mechanisms in lettuce plants after partial defoliation

Casierra–Posada

Zapata-Casierra

Baker-Rodríguez

2021

Chil. j. agric. res.

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Leaf area loss is a frequent problem in crops, and it can be caused by biotic or abiotic factors. Reduced leaf area can produce alterations in plants, affecting their metabolism, growth, and yield. The leaf area in lettuce plants (Lactuca sativa L.) is often affected by herbivores such as slugs. The effects of partial defoliation on the growth of lettuce plants were evaluated under greenhouse conditions in Tunja, Colombia. Some plants had half of their leaves removed, while others were left intact as a control. The variables normally used in the basic analysis of plant growth were evaluated. There was nonsignificant difference between the two treatments; however, lettuce plants showed a remarkable ability to reduce the negative effect caused by partial defoliation, and they managed to maintain a balance in the root to shoot ratio, leaf area ratio, specific leaf area, leaf weight ratio, DM partitioning, and harvestable DM. Partial defoliation decreased the absolute growth rate by 17.8% and the relative growth rate by 13.8%. Additionally, the chlorophyll content index and the number of leaves increased by 16.0% and 15.4%, respectively, in plants subjected to partial defoliation compared with the control plants. These results indicate the regeneration capacity of the plants after partial defoliation.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 81%