Estimating leaf area of plantain

Obiefuna, J. C.; Ndubizu, T.O.C.

doi:10.1016/0304-4238(79)90051-7

Cited by 32 publications

(14 citation statements)

References 5 publications

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“…The shoot parameters measured included plant height (PH), circumference of the pseudostem at soil level (PC) and leaf area (LA). Leaf length and leaf widest width were measured and LA was calculated according to Obiefuna and Ndubizu (1979). Leaf dry weight (LW) and pseudostem dry weight (PSW) were also recorded.…”

Section: Methodsmentioning

confidence: 99%

Relative performance of root and shoot development in enset and East African highland bananas

Blomme¹,

Sebuwufu²,

Addis³

et al. 2010

African Crop Science Journal

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East African highland bananas and enset belong to the genera Musa and Ensete (Ensete ventricosum), respectively. The root, corm and shoot growth of field-established enset and East African highland banana cultivars was assessed. Banana and wild enset plants were assessed in Uganda, while domesticated enset plants were assessed in Ethiopia. Growth traits of the enset and banana mats in Uganda were recorded at flower emergence of the banana plant crop, while enset plants in Ethiopia were assessed at 4 and 5 years after planting. The results obtained in Uganda indicate that enset had a significantly (P<0.05) shorter and thicker pseudostem compared to banana. In addition, enset had a larger root system with thicker cord roots. Results further showed that young enset plants had a significantly lower shoot-root ratio compared to the bananas. The shoot-root ratio in enset is, however, clone dependent and increases with an increase in age. The results also showed that root density in enset sharply decreases with increasing soil depth. Par ailleurs, enset a un plus grand système fondamental avec les racines de corde plus épaisses. Les résultats poussés ont montré que ces jeunes plantes d'enset ont une grande proportion des rejetons en comparaison avec celle des bananes. La proportion des rejetons de enset est cependant un clone dépendant des augmentations de l'âge. Les résultats ont montré aussi que la densité des racines de enset diminue avec l'augmentation de la profondeur du sol.

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Section: Methodsmentioning

confidence: 99%

Relative performance of root and shoot development in enset and East African highland bananas

Blomme¹,

Sebuwufu²,

Addis³

et al. 2010

African Crop Science Journal

View full text Add to dashboard Cite

show abstract

“…At 3 and 6 months after planting (MAP), data were collected on plant height (from soil level to the V-junction of the topmost opposite petioles), plant base girth (cm), number of live leaves and total leaf area (cm 2 ) per plant following Obiefuna and Ndubizu (1979). Four plants each across the fertilizer treatments were subjected to destructive sampling at 3 and 6 MAP to assess the dry matter accumulation and partitioning to the above-ground and below-ground components.…”

Section: Data Collectionmentioning

confidence: 99%

Nitrogen and potassium fertilizer influenced nutrient use efficiency and biomass yield of two plantain (Musa spp. AAB) genotypes

Chinekenwa¹,

Baiyeri²

2015

Afr. J. Agric. Res.

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). The nutrient use efficiencies of the applied nutrients were also studied. Analysis of variance showed that fertilizer combination significantly (p<0.05) influenced the genotype performance and genotype-by-fertilizer interaction effects. Growth and DMY in both genotypes were superior where both nutrients were applied together. 'PITA 24' maintained a better growth, higher DMY, and greater efficiency of nutrient use than 'Agbagba'. Both genotypes had the best growth where N was applied at 200 or 400 kg.ha -1 in combination with 300, 600 or 900 kg.ha -1 of K 2 O. The control plants were the poorest.

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“…Plant height was measured from the plant base (substrate level) to the Vjunction of the topmost opposite petioles, whereas pseudostem base diameter was taken at the plant base using a vernier calliper. The total leaf area per plant (length × widest width × 0.8) was calculated for all the live leaves following Obiefuna and Ndubizu (1979). The plants were subjected to destructive sampling at the end of the study to assess the dry matter yield partitioned to the above-ground and below-ground components.…”

Section: Data Collection and Analysismentioning

confidence: 99%

Responses of macropropagated <i>Musa</i> plantlets to transient moisture stress in six nursery substrates

Baiyeri¹,

Aba²

2015

Agro-Sci.

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Moisture stress causes serious devastating effects on crops ranging from retarded growth, tissue desiccation, and severe yield drop to outright death. In this study, the efficacy of six nursery substrates formulated in varying volume ratios of composted plantain fruit/bunch wastes (PFW), sawdust (SD), poultry manure (PM) and topsoil (TS) were evaluated on growth and moisture stress tolerance of macropropagated banana plantlets in the nursery. Un-amended topsoil was evaluated alongside five other substrates in completely randomized design (CRD) of ten replications. Two uniform sets of 10-week-old plants were used in the study. Watering was withdrawn on one set for 2 weeks, while the other set (watered daily throughout the study period) served as the control. The 2-week moisture stress was followed by a 4-week rehydration period, and thereafter, a second cycle water stress was induced for 3 weeks after which the plants were sampled for growth and dry matter accumulation. Results showed significant (p < 0.05) variability in plant growth and dry matter yield (DMY) across the nursery substrates, vis-à-vis the induced moisture stress. Plant growth and DMY were superior in PFW:SD:PM and PFW:SD:PM:TS, and were comparably good in most other media that contained PM and or PFW. The deleterious effects of the induced moisture stress were most severe in plants raised in unamended topsoil. In addition to poor growth and reduced DMY observed in the stressed plants, these plants allotted a greater proportion of the accumulated dry matter to the underground components. It was evident from the study that inclusion of composted organic materials in nursery substrates supports the efficient utilization of available water by the plants. The use of organic substrates therefore holds promise for moisture stress management in nurseries. Irrigation (interval or volume) could be regulated to save labour, cut cost and optimize crop water use.

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Estimating leaf area of plantain

Cited by 32 publications

References 5 publications

Relative performance of root and shoot development in enset and East African highland bananas

Relative performance of root and shoot development in enset and East African highland bananas

Nitrogen and potassium fertilizer influenced nutrient use efficiency and biomass yield of two plantain (Musa spp. AAB) genotypes

Responses of macropropagated <i>Musa</i> plantlets to transient moisture stress in six nursery substrates

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