scholarly journals Dry matter accumulation and partitioning of two taro (Colocasia Esculenta (L.) Schott) cultivars under Inceptisol soils in Samoa

2016 ◽  
Vol 34 (2) ◽  
pp. 40
Author(s):  
Walter Fa'amatuainu ◽  
Falaniko Amosa
Keyword(s):  
Life Cycle ◽  
Data Analysis ◽  
Growth Pattern ◽  
Dry Matter ◽  
Block Design ◽  
Colocasia Esculenta ◽  
Humid Tropics ◽  
Dry Matter Accumulation ◽  
Plant Parts

Taro (Colocasia esculenta) crop is widely grown throughout the humid tropics for its edible leaves, petioles and corms. In this research total dry matter (DM) accumulation and its partitioning between different plant parts were studied to determine their growth pattern over the plants’ life cycle (i.e. 35, 70, 105, 140 and 175 days after planting (DAP). An experiment with randomised complete block design (RCBD) having five treatments (DAP) and three replications (blocks) was setup for each of the two improved taro cultivars (Samoa 1 and Samoa 2). After harvest dry matter of each taro plant was estimated for its five parts: leaf blades, petioles, corms, roots and suckers. The data analysis showed that in both the cultivars the DM accumulation and its partitioning to different plant parts (i.e. the leaf blades (LDM), petioles (PDM), roots (RDM), corms (CDM) and suckers (SDM)) varied significantly (p

scholarly journals Effect of biostimulants on dry matter accumulation and gas exchange in plantain plants (Musa AAB)

2019 ◽  
Vol 13 (2) ◽  
pp. 151-160
Author(s):  
Diana Mateus-Cagua ◽  
Gustavo Rodríguez-Yzquierdo
Keyword(s):  
Gas Exchange ◽  
Dry Matter ◽  
Photosynthetic Activity ◽  
Leaf Gas Exchange ◽  
Block Design ◽  
Dry Matter Accumulation ◽  
Vegetative Phase ◽  
Physiological Processes ◽  
Randomized Complete Block Design ◽  
Positive Effect

Biostimulants can potentially improve plant growth and development, modifying physiological processes. This study evaluated the effect of four biostimulants on the growth of ‘Hartón’ plantain plants and the leaf gas exchange during the vegetative phase. This experiment was developed on a plantain farm’s nursery in Fuente de Oro (Colombia) with a randomized complete block design with four replicates. The treatments were the biostimulants: Bactox WP®: Bacillus subtilis (Bs); Baliente®: Bacillus amyloliquefaciens (Ba); Tierra Diatomeas®: silicon dioxide (Si); Re-Leaf®: salicylic acid (SA) and the control (water). All products had a positive effect on the accumulation of total dry matter (DM) (between 58.4 and 21.9%) and on the photosynthetic activity (a maximum of 110 and 24.3% in first and second evaluation), as compared to the control, while no differences were found (P>0.05) for the foliar emission rate and chlorophyll content between the treatments. The plants treated with Bs had the greatest DM accumulation at the end of the study and a constant, high photosynthetic activity. All the while Bs, Ba and Si managed to stimulate greater early photosynthetic activity. According to the results, the use of these biostimulants during the vegetative phase had an effect on the physiological processes that enhance DM accumulation in plantain plants, which could be potentially useful for the transplanting stage and increase the reserves used during their establishment and development in the field.

Growth, nutrient uptake and yield of tanier (Xanthosoma spp.) grown under semiarid conditions

1969 ◽  
Vol 78 (3-4) ◽  
pp. 87-98
Author(s):  
Ricardo Goenaga
Keyword(s):  
Nutrient Uptake ◽  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Plant Parts ◽  
Class A ◽  
Zn Uptake ◽  
Optimum Water ◽  
Semiarid Conditions

There is tittle information regarding optimum water requirement for tanier grown under semiarid conditions with irrigation. A study was conducted to determine the growth, nutrient uptake and yield performance of tanier plants irrigated with the equivalent of fractions of evapotranspiration. The irrigation regimes were based on class A pan factors ranging from 0.33 to 1.32 with increments of 0.33. Tanier plants grown under field conditions were harvested for biomass production about every 6 weeks during the growing season. At each harvest, plants were separated into various plant parts to determine dry matter accumulation, N, P, K, Ca, Mg, and Zn uptake and yield. During the first 278 days after planting, plants replenished with 99 and 132% of the water lost through evapotranspiration (WLET) exhibited similar total dry matter content; however, their dry matter content was significantly greater than that in plants supplied with 33 and 66% WLET. The amount of N, P, K, Ca, Mg, and Zn taken up by plants replenished with 99 and 132 WLET was similar, whereas the content of these nutrients in plants replenished with 33 and 66% WLET was considerably lower. The yield of plants replenished with 99% WLET was considerably greater than that of plants supplied with 33 and 66% WLET, but significantly lower than that from plants receiving 132% WLET. Maximum cormel yields of 19,479 kg/ha were obtained from plants replenished with 132% WLET.

MACRONUTRIENTS ABSORPTION AND DRY MATTER ACCUMULATION IN GRAIN SORGHUM

2018 ◽  
Vol 17 (1) ◽  
pp. 15
Author(s):  
IRAN DIAS BORGES ◽  
ELAINE CRISTINA TEIXEIRA ◽  
LORENA MARTINS BRANDÃO ◽  
ANTÔNIO AUGUSTO NOGUEIRA FRANCO ◽  
MARCOS KOITI KONDO ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Dry Matter ◽  
Sandy Loam ◽  
Block Design ◽  
Grain Sorghum ◽  
Semiarid Region ◽  
Dry Matter Accumulation ◽  
Sigmoidal Function ◽  
Randomized Block Design ◽  
Red Latosol

ABSTRACT - The present study aimed to determine the curves of macronutrients and dry matter accumulation in grain sorghum DKB 599, grown in a semiarid region. A field experiment was conducted on a sandy loam eutrophic red Latosol (Oxisol) in Janaúba, State of Minas Gerais (MG), Brazil, in a randomized block design with four replications. As statistical method, a nonlinear regression, sigmoidal function with three parameters was used. After drying, the plants were weighed and ground to determine N, P, K, Ca, Mg and S concentration. Grain sorghum plants accumulate nutrients in their shoots in the following order: N> K> Ca> P> Mg> S. The highest concentrations of K and N were observed in stems and grains, respectively. In the conditions of this experiment, the most favorable time to perform nitrogen and potassium topdressing fertilization is when the plants present seven fully expanded leaves or 24 days after the emergency (DAE). Keywords: fertilization, growth, nutrition, Sorghum bicolor. ABSORÇÃO DE MACRONUTRIENTES E ACÚMULO DE MATÉRIA SECA NO SORGO GRANÍFERO RESUMO - Este trabalho teve como objetivo determinar as curvas de acúmulo de matéria seca e macronutrientes no sorgo DKB 599 cultivado em região semiárida. O experimento foi conduzido em campo sobre um Latossolo Vermelho eutrófico, de textura franco-argilosa, no município de Janaúba-MG, Brasil, em delineamento experimental de blocos casualizados, com quatro repetições. Utilizou-se o modelo de regressão não linear, função sigmoidal com três parâmetros como método estatístico. Após secagem, cada parte da planta foi pesada e moída para, em seguida, determinarem-se os teores de N, P, K, Ca, Mg e S. As plantas de sorgo granífero acumulam nutrientes em sua parte aérea na seguinte ordem: N > K > Ca > P > Mg > S. As maiores concentrações de K e N foram observadas, respectivamente, nos caules e nos grãos. Nas condições de condução do experimento, a época mais propícia para realizar a adubação nitrogenada e potássica em cobertura é quando as plantas apresentam sete folhas totalmente expandidas ou 24 dias após a emergência (DAE). Palavras-chave: fertilização, crescimento, nutrição, Sorghum bicolor.

scholarly journals Organic cultivation of okra with ground cover of perennial herbaceous legumes

2013 ◽  
Vol 31 (3) ◽  
pp. 450-456 ◽  
Author(s):  
Diego Mathias N da Silva ◽  
Fábio Luiz Oliveira ◽  
Paulo Henrique Grazziotti ◽  
Claudenir Fávero ◽  
Mateus Augusto L Quaresma
Keyword(s):  
Dry Matter ◽  
Crop Yields ◽  
Block Design ◽  
Ground Cover ◽  
Bare Soil ◽  
Vegetable Production ◽  
Dry Matter Accumulation ◽  
Herbaceous Legumes ◽  
Organic Cultivation ◽  
Randomized Block Design

The management of green manure with perennial herbaceous legumes has emerged as an interesting practice for vegetable production, improving the cultivation environment and increasing crop yields. In the present study we evaluated the organic okra cultivation in soil covered with perennial herbaceous legumes. The treatments consisted of okra grown in bare soil (control) or covered with tropical kudzo (Pueraria phaseoloides), perennial soybean (Glycine wightii), calopogonium (Calopogonium muconoides), Pinto peanut (Arachis pintoi) and Stylosanthes capitata and Stylosanthes macrocephala. A randomized block design with four replications was used. The weeding of legumes was realized before the okra was sown and this allowed the addition of quantities of dry matter, highlighting the potential of tropical kudzo (3.74 t ha-1), perennial soybean (1.55 t ha-1) and peanut (1.30 t ha-1). Okra cropped in soil covered with tropical kudzo and perennial soybean had the weed lowest dry matter accumulation until 150 days after sowing the okra. At 150 days after sowing the okra, only the areas covered with peanut and calopogonium had higher volumes of water in the soil compared to the control. Throughout the harvest, the okra plants grown in soil covered with perennial soybean and tropical kudzo showed the greatest heights. The maximum okra fruit yield (16.23 t ha-1) was obtained by growing okra in soil covered with perennial soybean.

scholarly journals Effect of harvest period on the quality of storage roots and protein content of the leaves in five cassava cultivars (Manihot esculenta, Crantz)

2003 ◽  
Vol 46 (2) ◽  
pp. 295-305 ◽  
Author(s):  
Edvaldo Sagrilo ◽  
Pedro Soares Vidigal Filho ◽  
Manoel Genildo Pequeno ◽  
Carlos Alberto Scapim ◽  
Maria Celeste Gonçalves Vidigal ◽  
...  
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Starch Content ◽  
Block Design ◽  
Matter Content ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Storage Roots ◽  
Fresh Matter

The effect of harvest period on the quality of storage roots and leaves of cassava cultivars was determined in an experiment carried out in a randomized complete block design with four replications in a split plot scheme, with five cultivars in the plots and ten harvest times in the subplots. The IAC 13 cultivar had the highest rate of dry matter accumulation in the storage roots and the Mico cultivar the lowest. The period of least dry matter content in the storage roots occurred later for the Fécula Branca, Mico and IAC 14 cultivars, and the minimum starch content in the storage roots occurred later for the Fécula Branca and Mico cultivars. In general, the IAC 13, IAC 14 and Fécula Branca cultivars had higher dry matter content in the storage roots, while higher starch content in the dry and fresh matter were obtained in the Fécula Branca cultivar. The crude protein content in the leaves decreased as the plant aged.

scholarly journals Growth and Dry Matter Accumulation of Okra (Abelmoschus esculentus L.) as Influenced by Different Plating Pattern Under Okra - Cowpea (Vigna unguiculata L.) Intercropping

2019 ◽  
Vol 7 ◽  
pp. 81-96
Author(s):  
A.K.M.R.B. Maduwanthi ◽  
Brintha Karunarathna
Keyword(s):  
Leaf Area ◽  
Vigna Unguiculata ◽  
Dry Matter ◽  
Block Design ◽  
Abelmoschus Esculentus ◽  
Dry Matter Accumulation ◽  
Area Index ◽  
Sole Crop ◽  
Significant Difference ◽  
Sole Cropping

Compared to sole cropping, intercropping systems can more efficiently use the existing resources which ultimately lead to improved plant growth and dry matter accumulation. So, most of the farmers in developing countries can follow the intercropping systems with high yielding crop combinations. The experiment was carried out at the Crop Farm of Eastern University, Sri Lanka in 2018 to investigate the growth and dry matter accumulation in okra (Abelmoschus esculentus L.) as influenced by different planting patterns under okra-cowpea (Vigna unguiculata L. Walp) intercropping in sandy regosol. The experiment was laid out in a Randomized Complete Block Design (RCBD). Treatments were okra as a sole crop (T1), cowpea as a sole crop (T2), alternative planting of okra and cowpea (T3), 60/150 cm paired row planting of okra with two rows and three rows of cowpea in between paired rows (T4 and T5) and 75/120 cm paired row planting of okra with two rows and three rows of cowpea in between paired rows (T6 and T7). Plant height, root length, fresh and dry weights of plant, leaf area, leaf area index, canopy width and cumulative yield of okra were higher in T5, while chlorophyll content showed no significant difference (P>0.05) with different planting patterns. The present study concluded that 60/150 cm paired row planting of okra with three rows of cowpea in between paired rows (T5) would be the most suitable planting system in sandy regosol to achieve better growth and dry matter in okra.

scholarly journals Effect of Agronomic Biofortification of Sulphur and Boron on the Growth and Yield of Mustard (Brassica campestris L.) Crop

2020 ◽  
pp. 1-8
Author(s):  
M. A. Awal ◽  
M. H. O. Rashid ◽  
M. M. Rahman
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Dry Matter ◽  
Block Design ◽  
Growth And Yield ◽  
Combine Application ◽  
Dry Matter Accumulation ◽  
Yield Attributes ◽  
Mustard Crop ◽  
Agronomic Biofortification

Background and Objective: Sulphur and boron are found as most critical nutrient elements for the better growth and yield of mustard crop however no such concrete information for their uses in field production of this crop is yet to be reported. Therefore, an experiment was conducted to investigate the effect of agronomic biofortification of sulphur and boron nutrients on the growth and yield of mustard crop. Study Design: The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates. Place of Study: The experiment was carried out in the Crop Botany Field Laboratory, Bangladesh Agricultural University, Mymensingh. Methodology: Three doses of sulphur (S) viz. 0, 20 and 40 kg ha-1 and three doses of boron (B) viz. 0, 0.5 and 1.0 kg ha-1 and their possible combinations were used as basal doses. Field data were collected from periodic destructive samplings on the plant height, number of leaves and branches per plant, total dry matter accumulation and finally yield components and yield. Results: Sulphur and boron fertilizations significantly influence the plant height, production of branches and leaves per plant, dry matter accumulation and yield attributes and yield of mustard crop. The mustard crop fertilized with 40 kg S ha-1 in combination with 1 B kg ha-1 produced taller plant, higher number of branches and leaves in each plant and higher amount of dry matter per plant while these plant traits were found as minimum when the growing the mustard crops in control plots i.e. the plants received neither sulphur nor boron. Application of sulphur @ 40 kg ha-1 along with boron @ 1 kg ha-1 produced the highest seed yield (2.73 t ha-1) whereas the lowest seed yield (1.08 t ha-1) was found where no sulphur and boron were applied. Conclusion: The result conclude that combine application of sulphur and boron @ 40 and 1 kg per hectare, respectively was found to be most effective dose in enhancing growth and yield of mustard crop.

scholarly journals Inoculation of Wheat Plants with Pseudomonas spp. and Azospirillum brasilense under Drought Stress

2020 ◽  
pp. 1-7
Author(s):  
Samuel Luiz Fioreze ◽  
Magaiver Gindri Pinheiro ◽  
Yriá Dias Pereira ◽  
Sonia Purin da Cruz
Keyword(s):  
Drought Stress ◽  
Azospirillum Brasilense ◽  
Dry Matter ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Morphological Characters ◽  
Stress Inoculation ◽  
Dry Matter Accumulation ◽  
Water Restriction ◽  
Pseudomonas Spp

Aims: To investigate the effect of inoculation and co-inoculation of Pseudomonas spp. and Azospirillum brasilense on the morphophysiological characters of wheat (Triticum aestivum L.) under drought stress conditions. Study Design: A randomized complete block design was used in a split plot scheme with four replicates. The plots consisted of irrigated and drought conditions. The subplots consisted of control (without inoculation), inoculation of Pseudomonas spp., inoculation of A. brasilense and co-inoculation of Pseudomonas spp. + A. brasilense. Liquid inoculant was used for two bacteria. Place and Duration of Study: Agricultural Experimental Area of the Federal University of Santa Catarina, Campus of Curitibanos, SC, Brazil, between July and October 2018. Methodology: Inoculation was performed at the time of sowing. Water deficit was characterized by irrigation suppression after plant emergence, considering a 25-day period without significant rainfall. At the end of the water restriction period, SPAD (Soil Plant Analysis Development) index and morphologic parameters of wheat plants was determined. Results: Drought stress decreased dry matter accumulation of wheat plants, in terms of number of tillers, above ground dry matter and root-shoot ratio. Inoculation or co-inoculation with Pseudomonas spp. and A. brasilense did not affect plant growth. Under drought stress, SPAD index was higher in plants co-inoculated with Pseudomonas spp. and A. brasilense. Conclusion: Although maintains SPAD index of wheat plants under drought stress, inoculation and co-inoculation with Pseudomonas spp. and A. brasilense do not influence the morphological characters of wheat plants.

scholarly journals Dry matter accumulation and crude protein concentration in Brachiaria spp. cultivars in the humid tropics of Ecuador

2017 ◽  
Vol 5 (2) ◽  
pp. 66 ◽  
Author(s):  
Jonathan R. Garay ◽  
Santiago Joaquin Cancino ◽  
Pedro Zárate Fortuna ◽  
Martín A. Ibarra Hinojosa ◽  
Juan C. Martínez González ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Protein Concentration ◽  
Humid Tropics ◽  
Dry Matter Accumulation

scholarly journals Additional variability in engineered Cowpea (Vigna unguiculata (L.) Walp) exposed to alpha-spin nano particles

2021 ◽  
Vol 8 (1) ◽  
pp. 121-131
Author(s):  
Hauwa Aliyu Kana ◽  
Emmanuel Hala Kwon-Ndung
Keyword(s):  
Dry Matter ◽  
Agricultural Development ◽  
Agronomic Traits ◽  
Block Design ◽  
Development Program ◽  
Principal Component ◽  
Botanical Garden ◽  
Nano Particles ◽  
Dry Matter Accumulation ◽  
Significant Difference

Field study was conducted at the Botanical Garden, Federal University of Lafia, between August and October 2017 to investigate the effect of alpha nano spin on nine advanced varieties of cowpea obtained from Institute of Agriculture Research (IAR), Zaria and one local variety from Nasarawa Agricultural Development Program (NADP), Lafia which served as the control. These seeds were exposed to alpha-spin nano-particles at four different periods; 20 mins, 40 mins and 60 mins termed as T1, T2 & T3 respectively while the untreated seeds 0 mins were termed T0 (control). The experimental design was a Randomized Complete Block Design with four replications. Data were collected on agronomic traits, yield components and grain yield, which were subjected to Analysis of Variance and Principal Component Analysis. Laboratory studies were also carried out to determine the pattern of Dry matter accumulation at two weeks interval for six weeks. Results of harvested seeds revealed that Sampea 5, inoculated at 40 mins treatment produced black seeds colour from brown seed colour parent. Results also showed a significant difference among treatments and varieties for mean plant height, the mean number of leaves, mean number of pods and mean pod length. Total dry matter accumulation of leaves, 100 disc leaves and stems over time varied among treatments and varieties. The first three Principal Components (PCs) accounted for 83.1% of the total variation implying their high selection stability. The detailed results are presented and discussed in this paper as a measure of the future selection of useful variants of the improved cowpea for sustainable cowpea production.

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