Abstract
Abstract Rhizobial lipochitooligosacharides (Nod factors) influence the development of legume roots, including growth stimulation, nodule induction and root hair curling. However, their effect on the green parts of plants is less known, therefore we evaluated seed and foliar application of an extract containing Nod factors on pea growth and yield. Pea plants were examined from emergence to full maturity, including growth dynamics and morphological (nodule number and weight, the quantity and surface area of leaves) or physiological (photosynthesis and transpiration intensity, chlorophyll and nitrogen content) parameters. The foliar application Nod factor extract, or seed dressing followed by foliar application, resulted in the best outcomes. The number and weight of root nodules, the chlorophyll content in leaves, and the intensity of net photosynthesis were all elevated. As a consequence of Nod factor treatment, the dynamics of dry mass accumulation of pea organs were improved and the pod number was increased. A significant increase in pea yield was observed after Nod factor application. Increase of nodule and pod numbers and improved growth of roots appear to be amongst the beneficial effects of Nod factor extract on the activation of secondary plant meristems.
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Claims 7
Claim · model-written summary
Foliar application or seed dressing followed by foliar application gave the best outcomes.
- Taxon
- pea
Lathyrus oleraceust0 - Treatment
- foliar application Nod factor extracte0
- Outcome
- best outcomese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The foliar application Nod factor extract, or seed dressing followed by foliar application, resulted in the best outcomes.”
t0“pea growth and yield”
Claim · model-written summary
Nod factor application elevated root nodule number and weight.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Nod factor treatmente1
- Outcome
- number and weight of root nodulese0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number and weight of root nodules, the chlorophyll content in leaves, and the intensity of net photosynthesis were all elevated.”
e1“As a consequence of Nod factor treatment”
t0“pea growth and yield”
Claim · model-written summary
Nod factor application elevated leaf chlorophyll content and net photosynthesis.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Nod factor treatmente1
- Outcome
- chlorophyll content in leaves, and the intensity of net photosynthesise0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chlorophyll content in leaves, and the intensity of net photosynthesis were all elevated.”
e1“As a consequence of Nod factor treatment”
t0“pea growth and yield”
Claim · model-written summary
Nod factor treatment improved dry mass accumulation of pea organs.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Nod factor treatmente0
- Outcome
- dynamics of dry mass accumulation of pea organse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a consequence of Nod factor treatment, the dynamics of dry mass accumulation of pea organs were improved”
t0“pea growth and yield”
Claim · model-written summary
Nod factor treatment increased pod number.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Nod factor treatmente0
- Outcome
- pod numbere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a consequence of Nod factor treatment, the dynamics of dry mass accumulation of pea organs were improved and the pod number was increased.”
t0“pea growth and yield”
Claim · model-written summary
Nod factor application significantly increased pea yield.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- Nod factor applicatione0
- Outcome
- pea yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant increase in pea yield was observed after Nod factor application.”
Claim · model-written summary
The authors suggest that Nod factor extract activates secondary plant meristems, contributing to nodule and pod numbers and root growth.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- Nod factor extracte0
- Outcome
- activation of secondary plant meristemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increase of nodule and pod numbers and improved growth of roots appear to be amongst the beneficial effects of Nod factor extract on the activation of secondary plant meristems.”
t0“pea growth and yield”
The same questions in other papers
nodulation factor · growth · Lathyrus oleraceus (pea)Positive and negative results
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- negative
- positive
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nodulation factor · symbiosis · Lathyrus oleraceus (pea)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
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nodulation factor · yield · Lathyrus oleraceus (pea)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.