Abstract
Flooding has become a common occurrence due to climate change leading to prolonged water-logging which suffocates plant rooting, thus reduced growth, yield or total loss. Limited research has been conducted on the same. This study is aimed at investigating the effect of flooding period on the early growth of Grevillea robusta nursery seedlings in Njoro, Kenya. An experiment was set up for 2 months in Egerton University Agroforestry tree nursery using a six months old Grevillea seedlings. Completely randomized block design (RCBD) with 4 treatments replicated 3 times was used. The treatments were: Non-flooding, 2 days flooding, 4 days flooding and 6 days flooding. Data was collected for shoot, foliage and root variables and analyzed using SAS statistical package while means were separated using least significance difference (LSD). Non-flooding recorded the highest performance for all the shoot and foliage variables while the least was 2 days flooding. On the other hand, 6 days flooding was the second in performance for most of the variables especially 3rd internode length (20.2 mm) and fresh shoot biomass (56.4 g) were significantly (P=0.002 and 0.05) higher respectively compared with 2 days flooding (13.5 mm and 46.7 g) respectively. In conclusion, flooding affects the growth of Grevillea seedlings negatively by reducing their growth and this was more pronounced in 2 days flooding. However, for 6 days flooding, the seedlings seem to adjust through development of adaptive strategies in the roots. Further research needs to be conducted on other species and also prolonged flooding period.
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Claims 6
Claim · model-written summary
Non-flooding gave the highest performance for the shoot and foliage variables, with 2 days flooding the lowest.
- Taxon
- Grevillea robusta
Grevillea robustat0 - Organ / stage
- shoot and foliage variablese1
- Treatment
- Non-floodinge1
- Outcome
- performancee1
- Direction
- higheste1
- Comparator
- 2 days floodinge1
- Setting
- Njoro, Kenyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e0“This study is aimed at investigating the effect of flooding period on the early growth of Grevillea robusta nursery seedlings in Njoro, Kenya.”
e1“Non-flooding recorded the highest performance for all the shoot and foliage variables while the least was 2 days flooding.”
Claim · model-written summary
6 days flooding ranked second in performance for most variables, behind non-flooding.
- Taxon
- Grevillea robustaGrevillea robustat0
- Treatment
- 6 days floodinge2
- Outcome
- performancee2
- Direction
- seconde2
- Comparator
- Non-floodinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e1“Non-flooding recorded the highest performance for all the shoot and foliage variables while the least was 2 days flooding.”
e2“On the other hand, 6 days flooding was the second in performance for most of the variables especially 3rd internode length (20.2 mm) and fresh shoot biomass (56.4 g) were significantly (P=0.002 and 0.05) higher respectively compared with 2 days flooding (13.5 mm and 46.7 g) respectively.”
Claim · model-written summary
3rd internode length of 6 days flooding seedlings was higher than with 2 days flooding.
- Taxon
- Grevillea robustaGrevillea robustat0
- Treatment
- 6 days floodinge2
- Outcome
- 3rd internode lengthe2
- Direction
- highere2
- Value
- 20.2 mme2
- Qualifier
- 13.5 mme2
- Comparator
- 2 days floodinge2
- Setting
- Njoro, Kenyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e2“On the other hand, 6 days flooding was the second in performance for most of the variables especially 3rd internode length (20.2 mm) and fresh shoot biomass (56.4 g) were significantly (P=0.002 and 0.05) higher respectively compared with 2 days flooding (13.5 mm and 46.7 g) respectively.”
e0“This study is aimed at investigating the effect of flooding period on the early growth of Grevillea robusta nursery seedlings in Njoro, Kenya.”
Claim · model-written summary
Fresh shoot biomass of 6 days flooding seedlings was higher than with 2 days flooding.
- Taxon
- Grevillea robustaGrevillea robustat0
- Treatment
- 6 days floodinge2
- Outcome
- fresh shoot biomasse2
- Direction
- highere2
- Value
- 56.4 ge2
- Qualifier
- 46.7 ge2
- Comparator
- 2 days floodinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e2“On the other hand, 6 days flooding was the second in performance for most of the variables especially 3rd internode length (20.2 mm) and fresh shoot biomass (56.4 g) were significantly (P=0.002 and 0.05) higher respectively compared with 2 days flooding (13.5 mm and 46.7 g) respectively.”
Claim · model-written summary
Flooding reduced Grevillea seedling growth, more so with 2 days flooding.
- Taxon
- Grevillea robustaGrevillea robustat0
- Treatment
- floodinge3
- Outcome
- growthe3
- Direction
- negativelye3
- Qualifier
- more pronounced in 2 days floodinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e3“In conclusion, flooding affects the growth of Grevillea seedlings negatively by reducing their growth and this was more pronounced in 2 days flooding.”
Claim · model-written summary
Seedlings given 6 days flooding seem to adjust through adaptive strategies in the roots.
- Taxon
- Grevillea robustaGrevillea robustat0
- Treatment
- 6 days floodinge4
- Outcome
- seedlings seem to adjuste4
- Qualifier
- development of adaptive strategies in the rootse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“early growth of Grevillea robusta nursery seedlings”
e4“However, for 6 days flooding, the seedlings seem to adjust through development of adaptive strategies in the roots.”