scholarly journals The Effect of Mineral, Organic and Biofertilizeres on the Growth of Zea mays L.

2018 ◽  
Vol 7 (2) ◽  
pp. 66-77
Author(s):  
Bushra Mahmoud Alwan ◽  
Ahmed Majid Kareem
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Control Treatment ◽  
Mineral Fertilizers ◽  
Maize Crop ◽  
Maize Plants ◽  
Planting Season

An Implemented pot experiment  has been conducted in Al-Qadisiyah city - sadder AL- Yusufiya - District 9 in Spring planting season 2016 to study the effect of the overlap between the mineral , organic and bio fertilization in some  growth indicators to maize crop (Zea mays) in Silt Loam texture soils with factorial experiement according to completely randomize  design (Complete random design) and with  three replicates. The expenneit has been done by adding  mineral fertilizers (240 kg N. ha-1 and 80 kg P. ha-1 and 120 kg K. ha-1) three levels (0, 50% and 100%) respectively; and two levels of organic fertilizer (0 and 10 Mg. ha-1) respectively; and two levels of bio-fertilizer (0 and 2 ml. L-1) respectively to the irrigation water. The addition of mineral , organic and bio fertilizers has a significant effecct on the dry matter amount  and the treatment (M2O1B1) is given the highest average of  the dry matter,which reaches to 57.27 g.pot-1 as compared with the control treatment (M0O0B0), reacches to 20.46 g.pot-1 and the increasing percentage reach to 179.91%. There are no significant differences between (M1O1B1) and (M2O1B1). The triple overlap among the metal and organic fertilizers and bio has a significant effect on increasing the percentages of N, P and K in maize plants%, the treatment (M2O1B1) has achieved the highest average of 3.67% N and 0.49% P and 2.19% K respectively, compared with the treatment control (M0O0B0) 2.21% N and 0.23% P and 1.33% K sequentially with  increasing which presentage reached  to  66.06 N% and 113.04 P% and 64.66 K%. There are no significant differences between the treatments (M1O1B1) and (M2O1B1).

scholarly journals Production and Implication of Bio-Activated Organic Fertilizer Enriched with Zinc-Solubilizing Bacteria to Boost up Maize (Zea mays L.) Production and Biofortification under Two Cropping Seasons

Agronomy ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 39 ◽  
Author(s):  
Azhar Hussain ◽  
Zahir Ahmad Zahir ◽  
Allah Ditta ◽  
Muhammad Usman Tahir ◽  
Maqshoof Ahmad ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Organic Fertilizer ◽  
Growth Yield ◽  
Field Conditions ◽  
Organic Fertilizers ◽  
Shoot Biomass ◽  
Maize Crop ◽  
Cropping Seasons ◽  
The Impact

Bio-activated organic fertilizers (BOZ) were produced by enriching the zinc oxide (ZnO)-orange peel waste composite with Zn solubilizing bacteria (ZSB: Bacillus sp. AZ6) in various formulations (BOZ1 (9:1), BOZ2 (8:2), BOZ3 (7:3) and BOZ4 (6:4)). The produced BOZs, along with ZnO, ZnSO4, ZSB were applied to maize crop (Zea mays L.) under field conditions in two different cropping season and the growth, yield, physiology, plant Zn contents and quality of maize were investigated. Results revealed significant variation in the aforementioned parameters with the applied amendments. The BOZ4 performed outclass by exhibiting the highest plant growth, yield, physiology, Zn contents, and quality. On average, an increase of 53%, 49%, 19%, 22%, 10%, 4%, and 30% in plant height was noticed with BOZ4 application over control, ZnO, ZnSO4, BOZ1, BOZ2, BOZ3, and ZSB, respectively. BOZ4 enhanced the dry shoot-biomass 46% than control. Likewise, the photosynthetic rate, transpiration rate, stomatal conductance, chlorophyll contents, carotenoids, and carbonic anhydrase activity were increased by 47%, 42%, 45%, 57%, 17%, and 44%, respectively, under BOZ4 over control in both cropping seasons. However, BOZ4 reduced the electrolyte leakage by 38% as compared to control in both cropping seasons. BOZ4 increased the Zn contents of grain and shoot by 46% and 52%, respectively, while reduced the phytate contents by 73% as compared to control. Application of BOZ4 revealed highest average fat (4.79%), crude protein (12.86%), dry matter (92.03%), fiber (2.87%), gluten (11.925%) and mineral (1.53%) contents, as compared to control. In general, the impact of cropping seasons on maize growth, yield, physiology, Zn contents, and quality were non-significant (with few exceptions). Thus, bio-activation of ZnO with ZSB could serve as an efficient and economical strategy for boosting up the growth, yield, physiological, and quality parameters of maize under field conditions.

scholarly journals Rekayasa Pupuk Organik dan Pengaruhnya terhadap Potensi Hasil Tanaman Jagung Hibrida (Zea mays L.)

Jurnal Agro ◽  
10.15575/80 ◽  
2014 ◽  
Vol 1 (1) ◽  
pp. 44-49
Author(s):  
Rohana Abdullah
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Organic Fertilizer ◽  
Maximum Yield ◽  
Maize Yield ◽  
Organic Fertilizers ◽  
Cow Dung ◽  
Potential Yield ◽  
Pineapple Waste

Penelitian rekayasa pupuk organik dan pengaruhnya terhadap potensi hasil tanaman jagung hibrida (Zea mays L.) telah dilakukan di Kebun Percobaan Fakultas Pertanian Univesitas Padjadjaran sejak Desember 2013 sampai akhir Februari 2014, bertujuan untuk mengetahui pengaruh formula pupuk organik dan dosis terhadap potensi hasil tanaman jagung hibrida. Rancangan percobaan adalah Rancangan Acak kelompok dengan satu faktor perlakuan, yaitu formula pupuk organik A 4 t ha-1(kompos: jerami 30%, kasmur 10%, limbah buah nenas 20%, kohe sapi 20%, kohe kelinci 20%; 21 kg SP-36+ 4,5 kg KCl 60% t kompos-1). B 5 t ha- 1(kompos: jerami 40%, kasmur 10%, limbah buah nenas 10%, kohe sapi 30%, kohe kelinci 10%; 26 kg SP-36+ 5,5 kg KCl 60% t-1kompos)., C 5 t ha-1 (kompos: jerami 20%, kasmur 10%, limbah buah nenas 0%, kohe sapi 50%, kohe kelinci 20%; 30 kg SP-36+ KCl 60% 6,0 kg.). , D 4 t ha-1(kompos: jerami 20%, kasmur 10%, limbah buah nenas 10%, kohe sapi 60%, kohe kelinci  0%; 30 kg  SP-36 + 8,5 kg t-1 KCl 60%).E 5 t ha-1(kompos: jerami 50%, kasmur 0%, limbah buah nenas 0%, kohe sapi 50%, kohe kelinci 0%; 32 kg SP-36+ 7 kg KCl 60% t kompos-1), dan kontrol [K (tanpa formula pupuk organik)]. Hasil penelitian menunjukkan bahwa semua formula pupuk organik berpotensi meningkatkan bobot biomassa kering oven, bobot pipilan kering plot dan potensi hasil tanaman jagung per hektar. Formula E 5 t ha-1 berpotensi memberi hasil maksimum  10 t ha-1. Research about organic fertilizers formulation and its effect on maize yield potency was conducted at experimental field located in Universitas Padjadjaran, Jatinangor Sumedang, West Java, since December 2013 until Februari 2014. The experiment was aimed to determine the effect of organic fertilizers formulas to maize yield potency, which was arranged using a randomized block design and repeated six times with six treatment factors A 4 t ha-1(compost of: straw  30%, spent muschroom substrate  10%, pineapple waste 20%, cow dung 20%, rabbit droppings 20%; 21 kg SP-36+ 4,5 kg KCl 60% t compost-1). B 5 t ha- 1(compost of: straw 40%, spent muschroom substrate  10%, pineapple waste10%, cow dung 30%, rabbit droppings 10%; 26 kg SP-36+ 5,5 kg KCl 60% t-1compost-1)., C 5 t ha-1 (compost of: straw 20%, spent muschroom substrate  10%, pineapple waste%, cow dung 50%, rabbit droppings 20%; 30 kg SP-36+ KCl 60% 6,0 kgt compost-1), D 4 t ha-1(compost of: straw 20%, kasmur 10%, pineapple waste 10%, cow dung 60%, rabbit droppings 0%; 30 kg  SP-36 + 8,5 kg t-1 KCl 60%t compost-1).E 5 t ha-1(compost of: straw 50%, spent muschroom substrate  0%, pineapple waste 0%, cow dung 50%, rabbit droppings 0%; 32 kg SP-36+ 7 kg KCl 60% t compost-1), dan control [K (withouthorganic fertilizer formula)]. The result indicated that organic fertilizer formulas increased dry matter weight, seed dry weight per plot and potential yield per hectare. Organic fertilizer formulas E5 t ha-1 potentiallygave the maximum yield of 10 t ha-1.

Influence of biochar application to soil on the availability of As, Cd, Cu, Pb, and Zn to maize (Zea mays L.)

Soil Research ◽  
2010 ◽  
Vol 48 (7) ◽  
pp. 638 ◽  
Author(s):  
Tshewang Namgay ◽  
Balwant Singh ◽  
Bhupinder Pal Singh
Keyword(s):  
Zea Mays ◽  
Trace Elements ◽  
Trace Element ◽  
Dry Matter ◽  
Zea Mays L ◽  
Crop Productivity ◽  
Dry Matter Yield ◽  
Soil Carbon Pool ◽  
Maize Plants

Biochar has gained importance due to its ability to increase the long-term soil carbon pool and improve crop productivity. However, little research has been done to evaluate the influence of biochar application to soil on the bioavailability of trace elements to plants. A pot experiment was conducted to investigate the influence of biochar on the availability of As, Cd, Cu, Pb, and Zn to maize (Zea mays L.). An activated wood biochar, pyrolysed at 550°C, was applied at 3 rates (0, 5, and 15 g/kg) in factorial combinations with 3 rates (0, 10, and 50 mg/kg) each of As, Cd, Cu, Pb, and Zn separately to a sandy soil. After 10 weeks of growth, plants were harvested, shoot dry matter yield was measured, and concentration of trace elements in shoots was analysed. The soil in pots was analysed for extractable trace elements. The results showed that the addition of wood biochar to soil did not have any significant effect on the dry matter yield of maize plants, even at the highest rate of application. However, trace element application significantly reduced the dry matter yield from 10 to 93% depending on the type of trace element. Biochar application decreased the concentration of As, Cd, and Cu in maize shoots, especially at the highest rate of trace element application, whereas the effects were inconsistent on Pb and Zn concentrations in the shoots. The concentrations of extractable As and Zn in soil increased with biochar application, whereas extractable Cu did not change, Pb decreased, and Cd showed an inconsistent trend. Sorption of trace elements on biochar with initial loadings up to 200 µmol at pH 7 occurred in the order: Pb > Cu > Cd > Zn > As. The results show that biochar application can significantly reduce the availability of trace elements to plants and suggest that biochar application may have potential for the management of soils contaminated by trace elements.

scholarly journals By-Plant Prediction of Dry Matter Yields at Various Growth Stages of Maize Plants (Zea mays L.) Using Leaf Greenness Indicator in Climatic Conditions of Poland

2021 ◽  
Vol 11 (20) ◽  
pp. 9513
Author(s):  
Waldemar Zielewicz ◽  
Barbara Wróbel ◽  
Piotr Szulc ◽  
Henryk Bujak ◽  
Barbara Stachowiak
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Mineral Fertilization ◽  
Stay Green ◽  
Maize Varieties ◽  
Maize Plants ◽  
Leaf Greenness ◽  
K Fertilization ◽  
Greenness Index

Predicting yield at an early growth stage allows one to optimize the amount and timing of nitrogen fertilization to maximize crop yield. The aim of the study was to determine how different nitrogen doses would affect the nutrition of two maize varieties (Zea mays L.) with this element and their yields, and to demonstrate the potential of using the SPAD index as an early-stage predictor of dry matter yield (DMY) of maize biomass. The field experiment, with different pre- and post-sown N fertilizer doses, was conducted for two years in Poland. The two-factor experiment was set up in a randomized block design with three field replicates. There were four mineral fertilization variants: (I) 120 kg N·ha−1 without P and K fertilization, (II) 120 kg N·ha−1 + PK, (III) 160 kg N·ha−1 + PK, and (IV) 200 kg N·ha−1 + PK. The second-order factor was two stay-green maize varieties: Delitop (FAO 240) and Magitop (FAO 270). The mean values of the SPAD index of maize depended on the nitrogen dose. When the dose was increased from 120 kg·ha−1 to 200 kg·ha−1 with constant P and K fertilization, the value of the leaf greenness index increased significantly. The plants of both maize varieties fertilized with nitrogen at a dose of 120 kg N·ha−1 without P and K were characterized by the lowest values of the SPAD index, regardless of the year of the experiment. When the nitrogen dose was supplemented with P and K, the plants’ nutrition with nitrogen improved significantly. The values of the SPAD index in the maize plants of the variety Magitop were significantly greater than in the plants of the variety Delitop. The coefficients of correlation calculated for both maize varieties were highly significant at all measurement dates. Therefore, it is possible to conclude that the SPAD leaf greenness index can be used as an important, reliable, and non-invasive indicator for maize yield prediction. Nutrition of maize plants with nitrogen proved to be the main determinant of variability of the biomass yield. For this reason, it was the basis for the verification of individual mineral fertilization variants. The lack of phosphorus and potassium in the dose of mineral fertilizer limited the yield regardless of the variety, as compared to the variant that was optimally balanced with the nitrogen dose.

USO DE CAMA AVIÁRIA NA PRODUÇÃO DE MILHO E QUALIDADE DA SILAGEM

2017 ◽  
Vol 16 (3) ◽  
pp. 373
Author(s):  
SILVANE DE ALMEIDA CAMPOS ◽  
ROGÉRIO DE PAULA LANA ◽  
JOÃO CARLOS CARDOSO GALVÃO ◽  
STELIANE PEREIRA COELHO ◽  
EMERSON TROGELLO ◽  
...  
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Poultry Litter ◽  
Poultry Manure ◽  
Organic Fertilizers ◽  
Corn Yield ◽  
Dry Biomass ◽  
Silage Quality

RESUMO - A cama aviária é rica em nutrientes, sobretudo em N, comparativamente a fertilizantes de origem orgânica comumente utilizados na agricultura. Além disso, os baixos custos e a alta oferta de cama aviária em várias regiões têm levado ao desenvolvimento de estudos para o seu aproveitamento como fertilizante. Objetivou-se avaliar o efeito da aplicação de doses de cama aviária, em cobertura, na produção de milho e na qualidade da silagem. O delineamento experimental foi de blocos casualizados, com seis tratamentos (0,0, 1,5; 3,0; 4,5; 6,0 e 7,5 t ha-1 de cama aviária curtida) e quatro repetições. Determinaram-se altura de planta e de espiga, diâmetro do colmo, prolificidade, peso de espiga, proporção de espigas na matéria verde, produtividade de matéria verde e seca de plantas. Após 65 dias de armazenamento, os silos foram abertos para determinação dos teores de matéria seca e de proteína bruta, perdas por gases e efluente, e perda total de matéria seca das silagens. As doses de cama aviária não afetaram as características agronômicas e avaliativas da silagem, exceto a produtividade de matéria verde e seca de plantas que responderam linearmente ao aumento das doses aplicadas. O maior incremento na produtividade de matéria verde e seca de plantas de milho ocorreu com a dose 7,5 t ha-1 de cama aviária, superando em 39,49% e 27,62%, respectivamente, o tratamento controle. A adubação orgânica com cama aviária não afetou a qualidade das silagens produzidas.Palavras-chave: adubação, resíduo orgânico, produtividade, parâmetros qualitativos, Zea mays L. USE OF POULTRY MANURE IN CORN YIELD AND SILAGE QUALITY  ABSTRACT - Poultry manure is rich in nutrients, especially N, as compared with manure commonly used in agriculture. Moreover, the low costs of organic fertilizers compared with chemical fertilizers, the high offer of poultry manure in various regions has led to the development of studies for its use as fertilizer. The objective of this study was to evaluate the effect of doses of poultry litter, in coverage, in corn silage yield and silage quality. The experiment consisted of a randomized block design with six treatments (0.0, 1.5, 3.0, 4.5, 6.0 and 7.5 t ha-1 of tanned poultry litter) and four replications. The height of plant and ear, stem diameter, prolificacy, the ear weight, the proportion of ears in green matter, the productivity of green and dry matter of plants were determined. After 65 days of storage, the silos were opened to determine the dry biomass, crude protein, losses by gases and by effluent and loss total of dry biomass of silages. The poultry litter did not affect the agronomic characteristics and quality of silage, except the productivity of green and dry matter of plants that responded linearly to the increase of the doses applied. The highest increase in the productivity of green and dry matter of corn plants occurred with the 7.5 t ha-1 of poultry litter exceeding by 39.49% and 27.62%, respectively, the control treatment. The organic fertilization with poultry manure does not affect quality of the produced silage.Keywords: fertilization, organic waste, productivity, qualitative parameters, Zea mays L.

scholarly journals Effect of an Organic Fertilizer Based on Native Rhizophagus intraradices on Zea mays L. Yield in Northern Benin

2020 ◽  
pp. 8-17
Author(s):  
Abdel D. Koda ◽  
Alain S. Yaoitcha ◽  
Marcellin Allagbe ◽  
Nadège A. Agbodjato ◽  
Gustave Dagbenonbakin ◽  
...  
Keyword(s):  
Zea Mays ◽  
Mycorrhizal Fungi ◽  
Zea Mays L ◽  
Positive Impact ◽  
Organic Fertilizer ◽  
Mycorrhizal Fungus ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Rhizophagus Intraradices ◽  
Half Dose

Aims: One of the alternatives proposed to improve the sustainability and productivity of agricultural systems is the use of organic fertilizers based on arbuscular mycorrhizal fungi. The objective of the study was to evaluate the effectiveness of the native mycorrhizal fungus Rhizophagus intraradices in the field at Ouenou in North Benin for improved maize (Zea mays L.) production. Study Design: The experimental design was a complete random block of three treatments. Mention the design of the study here. Place and Duration of Study: Endomycorrhizal infection was assessed on roots of corn plants at 78 days post-seed. Methodology: Corn variety 2000 SYN EE-W was inoculated with the strain in combination with the mineral fertilizer (NPK) half-dose. Results: Results showed that of the three treatments, the highest heights were observed in plants treated with Rhizophagus intraradices +½ dose of NPK (15:15:15) and urea. The same observations were made with respect to leaf number and leaf area of plants and grain yield. Regarding the endomycorrhizal infection of plants inoculated with Rhizophagus intraradices +½ dose of NPK (15:15:15) and urea, of the three producers, the observation was that the endomycorrhizal infection was elevated to the level of the second producer (P2) which was of the order of (50%) while the mycorrhizal intensity was lower (24.6%) in the same producer. Conclusion: The native mycorrhizal fungus R. intraradices plus the half-dose NPK plus urea, had a positive impact on most of the various parameters.

scholarly journals The effect of chromate on the synthesis of plastid pigments and lipoquinones in Zea mays L. seedlings

2014 ◽  
Vol 51 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Zbigniew Krupa ◽  
Marek Ruszkowski ◽  
Ewa Gilowska-Jung
Keyword(s):  
Zea Mays ◽  
Growth Inhibition ◽  
Root System ◽  
Dry Matter ◽  
Zea Mays L ◽  
Strong Reduction ◽  
Plant Organs ◽  
Maize Plants ◽  
Plastid Pigments ◽  
Nutrient Solutions

Maize plants cultivated on nutrient solutions containing increasing amounts of CrO<sub>4</sub><sup>2-</sup> (from 10<sup>-7</sup> to 10<sup>-4</sup> M) showed growth inhibition, strong reduction of the root system and an increase of dry matter of leaves. The highest accumulation of chromium in plant organs appeared in the roots. Chromate taken up into leaves caused changes in the content of plastid pigments and lipoquinones similar, in general, to those in senescent plants.

scholarly journals Effect of Organic and Mineral Fertilization on The Values of Soluble Potassium Insideand Outside Rhizosphere of ZeaMaize (zea mays L.)

2018 ◽  
Vol 8 (1) ◽  
pp. 37-46
Author(s):  
Raid Sh. Jarallah ◽  
Jibreel Abbas Mohammed
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Root Zone ◽  
Block Design ◽  
Organic Fertilizer ◽  
Growth Time ◽  
Mineral Fertilizers ◽  
Potassium Fertilizer ◽  
Mineral Fertilization ◽  
Four Levels

A field experiment was carried out in a private farmer's farm located in AL-Qadisiyah/ Diwaniyah/ Daghara/ Sadr Al-Daghara area to study the effect of organic and mineral fertilizers on dissolved potassium values ​​inside and outsideZea maize rhizosphere. randomized complete block design (RCBD) was designed in three replicates and included two factors: the first factor with four levels of potassiumsulphatewhich are (0, 75, 150, 225) kg K. ha-1symbolized by the symbols (K0, K1, K2, K3) Respectively, and the second factor with four levelsof organic matter (poultry residues) which are (0, 10, 20, 30) tons. ha-1 symbolized by the symbols (O0, O1, O2, O3) Respectively, the seeds of Zeamaize (Zea mays L.) were cultivated in the form of lines (DKC 6120) in the form of lines on 20/7/2016. The results showed that the addition of potassium sulphate in different levels has achieved a significant increase in the amount of soluble potassium inside and outside the soil of the root zone and for all time periods (40,70,100) days of planting and the mineral fertilizer has exceeded the organic fertilizer in increasing the amount of soluble potassium and the interaction between the highest level of potassium fertilizer 225 kg k. ha-1 and the highest level of organic fertilizer 30 tons. ha-1 (K3O3) achieved the highest amount of soluble potassium within the root zone which amounted to (0.131,0.163) cmol.kg soil-1respectively, and (0.179,0.167) cmol.kg soil-1 outside the root zone respectivelyfor the periods (40,70) days of planting respectively, while after 100 days of planting the interaction (K2O3­) achieved the highest amount of soluble potassium amounted to 0.114 cmol.kg soil-1inside the root zone andtheinteraction (K3O3) achieved the highest amount of soluble potassium amounted to 0.159 cmol.kg soil-1 outside the root zone and a decrease in the amount of soluble potassium and for all treatment is noticed with the increase of plant growth time

scholarly journals Gluconacetobacter diazotrophicus Pal5 Enhances Plant Robustness Status under the Combination of Moderate Drought and Low Nitrogen Stress in Zea mays L.

2021 ◽  
Vol 9 (4) ◽  
pp. 870
Author(s):  
Muhammad Aammar Tufail ◽  
María Touceda-González ◽  
Ilaria Pertot ◽  
Ralf-Udo Ehlers
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Zea Mays L ◽  
Growth Promotion ◽  
Nitrogen Stress ◽  
Rrna Gene ◽  
N Fixation ◽  
Gluconacetobacter Diazotrophicus ◽  
Maize Plants ◽  
Low Nitrogen

Plant growth promoting endophytic bacteria, which can fix nitrogen, plays a vital role in plant growth promotion. Previous authors have evaluated the effect of Gluconacetobacter diazotrophicus Pal5 inoculation on plants subjected to different sources of abiotic stress on an individual basis. The present study aimed to appraise the effect of G. diazotrophicus inoculation on the amelioration of the individual and combined effects of drought and nitrogen stress in maize plants (Zea mays L.). A pot experiment was conducted whereby treatments consisted of maize plants cultivated under drought stress, in soil with a low nitrogen concentration and these two stress sources combined, with and without G. diazotrophicus seed inoculation. The inoculated plants showed increased plant biomass, chlorophyll content, plant nitrogen uptake, and water use efficiency. A general increase in copy numbers of G. diazotrophicus, based on 16S rRNA gene quantification, was detected under combined moderate stress, in addition to an increase in the abundance of genes involved in N fixation (nifH). Endophytic colonization of bacteria was negatively affected by severe stress treatments. Overall, G. diazotrophicus Pal5 can be considered as an effective tool to increase maize crop production under drought conditions with low application of nitrogen fertilizer.

EFFECTS OF TEMPERATURE ON RATE AND DURATION OF KERNEL DRY MATTER ACCUMULATION OF MAIZE

1988 ◽  
Vol 68 (4) ◽  
pp. 935-940 ◽  
Author(s):  
M. TOLLENAAR ◽  
T. W. BRUULSEMA
Keyword(s):  
Growth Rate ◽  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
Dry Weight ◽  
Controlled Environment ◽  
Dry Matter Accumulation ◽  
Linear Kernel ◽  
Effects Of Temperature ◽  
Kernel Growth

The response of rate and duration of kernel dry matter accumulation to temperatures in the range 10–25 °C was studied for two maize (Zea mays L.) hybrids grown under controlled-environment conditions. Kernel growth rates during the period of linear kernel growth increased linearly with temperature (b = 0.3 mg kernel−1 d−1 °C−1). Kernel dry weight at physiological maturity varied little among temperature treatments because the increase in kernel growth rate with increase in temperature was associated with a decline in the duration of kernel growth proportional to the increase in kernel growth rate.Key words: Zea mays L, period of linear kernel dry matter accumulation, controlled-environment conditions, kernel growth rate

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