Abstract
The objective was to assess the production and efficiency of the initial growth of pigeon pea or guandul ( Cajanus cajan) var. Negro and EGV22 with and without nitrogen fertilizing. The plants were planted in plastic bags during summer 2012. Two nitrogen fertilization treatments were applied at 90 d of germination (+N and -N). The variables were: number of nodules (NN), length of root (LR), weight of nodules (WN), height of plant (HP), total dry matter (TDM), leaf area index (LAI), specific leaf area (SLA), and rate of assimilation (RA), relative rate of growth (RRG) and rate of crop growth (RCG). A full-randomized experimental design was used with a factorial arrangement 2 x 2 and regression analysis. Differences were observed (P < 0.05) among varieties for NN, HP, so and RCG, where the highest average HP was obtained by EGV22 variety. For the nitrogen factor, its application decreased (P < 0.05) NN, WN, and HP. It is concluded that Negro variety can be used in the production systems since it has great TDM and the best establishment for the environmental conditions of Ecuador tropic.
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Claims 6
Claim · model-written summary
The two varieties differed significantly in nodule number, plant height and crop growth rate.
Not reportedDirection
Verbatim
e0“Differences were observed (P < 0.05) among varieties for NN, HP, so and RCG, where the highest average HP was obtained by EGV22 variety.”
Claim · model-written summary
EGV22 had the highest mean plant height.
- Taxon
- pigeon pea
Cajanus cajant0 - Material
- EGV22 varietye0
- Outcome
- average HPe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest average HP was obtained by EGV22 variety.”
t0“pigeon pea”
Claim · model-written summary
Nitrogen application significantly decreased nodule number.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- nitrogen factore0
- Outcome
- NNe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the nitrogen factor, its application decreased (P < 0.05) NN, WN, and HP.”
t0“pigeon pea”
Claim · model-written summary
Nitrogen application significantly decreased nodule weight.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- nitrogen factore0
- Outcome
- WNe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the nitrogen factor, its application decreased (P < 0.05) NN, WN, and HP.”
t0“pigeon pea”
Claim · model-written summary
Nitrogen application significantly decreased plant height.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- nitrogen factore0
- Outcome
- HPe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For the nitrogen factor, its application decreased (P < 0.05) NN, WN, and HP.”
t0“pigeon pea”
Claim · model-written summary
Negro was recommended for production given its dry matter and establishment under Ecuadorian tropical conditions.
- Taxon
- pigeon peaCajanus cajant0
- Material
- Negro varietye0
- Outcome
- can be used in the production systemse0
- Setting
- Ecuador tropice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Negro variety can be used in the production systems since it has great TDM and the best establishment for the environmental conditions of Ecuador tropic.”
t0“pigeon pea”
The same questions in other papers
nitrogen · symbiosis · Cajanus cajan (pigeon pea)Positive and negative results
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- positive
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nitrogen · growth · Cajanus cajan (pigeon pea)Positive and negative results
1 paper in the same direction as this paper · 6 in the opposite direction
- positive
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4 papers more in this group
See all 8 papers →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.