Tag Archives: growth

1541-1554 N. Ruangsuriya and K. Sungthongwises
Growth and yield response of sweet potato (Ipomoea batatas var. batatas) under acid sandy soil, northeast of Thailand
Abstract |
Full text PDF (483 KB)

Growth and yield response of sweet potato (Ipomoea batatas var. batatas) under acid sandy soil, northeast of Thailand

N. Ruangsuriya and K. Sungthongwises*

Agronomy section, Faculty of Agriculture, Khon Kaen University, TH40002 Khon Kaen, Thailand
*Correspondence: skiriy@kku.ac.th

Abstract:

Sweet potato is one of the major crops grown for food, animal feed and industrial products. The yield obtained in the Northeast of Thailand is far below its genetic potential due to soil degradation, erosion, acidification, loss of organic matter, waterlogging and salinization causing nutrient deficiency. The objectives of this research are to investigate yield components, accumulation of nutrients and food nutrition of different sweet potato species under acidic sandy soil. The experiment with four replications was laid out in a farmer’s field at Phu Wiang and Nong Ruea District, Khon Kaen Province, where young smart farmers are interested to grow sweet potato. Trials were planted for 2 years using four species of sweet potato: (A) Honey Sweet, (B) Okinawan Orange, (C) Okinawan Purple and (D) Purple Sweet Lord. All plots were treated with a basal application of 1.56 t ha-1 of cow and poultry manure with 0.03 t ha-1 of chemical fertilizer formula (N12-P4-K4). An addition of 0.15 t ha-1 of chemical fertilizer formula (N12-P4-K20) was made at 15 and 30 days after growing. The results show that Okinawan Orange and Purple Sweet Lord were higher growth in Phu Wiang district than Nong Ruea district. If the cost and unit price are the same, Okinawan Orange will give farmers a higher return than Purple Sweet Lord. Regarding the leaf residues of Okinawan Orange and Purple Sweet Lord are suitable to be used for fish farming, because they contain the highest protein and carbohydrates.

Key words:

, , , ,



793-804 Y.N. Sassine, T.K. Sajyan, A. El Zarzour, A.M.R. Abdelmawgoud, M. Germanos and S.M. Alturki
Integrative effects of biostimulants and salinity on vegetables: Contribution of bioumik and Lithovit®-urea50 to improve salt-tolerance of tomato
Abstract |
Full text PDF (190 KB)

Integrative effects of biostimulants and salinity on vegetables: Contribution of bioumik and Lithovit®-urea50 to improve salt-tolerance of tomato

Y.N. Sassine¹, T.K. Sajyan¹²*, A. El Zarzour¹, A.M.R. Abdelmawgoud³, M. Germanos¹ and S.M. Alturki⁴

¹Lebanese University, Faculty of Agriculture, Department of Plant Production, Beirut, Lebanon
²University of Forestry, Faculty of Agronomy, Department of Agronomy, 10 Kliment Ohridski blvd, BG1797 Sofia, Bulgaria
³National Research Center, Department of Vegetable Researches, Dokki, Cairo, Egypt
⁴King Faisal University, College of Agricultural and Food Sciences, Department of Arid Land Agriculture, P.O. Box 400, Al Ahsa 31982, Kingdom of Saudi Arabia
*Correspondence: tony.sajyan@st.ul.edu.lb

Abstract:

The separate and combined effect of lithovit-urea50 and bioumik was tested on salt-stressed tomato crops. Salinity was induced using three different NaCl solutions (2, 4 and 8 dS m-1). Under the salinity effect, all aspects of plant growth were inhibited. Total chlorophyll and carotenoids reduced from mg g-1 FW and 1.1 mg g-1 FW at 2 dS m-1 to reach 1.01 mg g-1 FW and 0.66 mg g-1 FW at 8 dS m-1 in control plants. Plants treated by the combination of both products had the highest chlorophyll and carotenoids content with 2.24 mg g-1 FW and 1.34 mg g‑1 FW, 1.88 mg g-1 FW and 1.05 mg g-1 FW, and 1.39 mg g-1 FW and 0.86 mg g-1 FW respectively at 2, 4 and 8 dS m-1. Treating plants by this combination maximized flower number, fruit weight, yield and fruit diameter at 2 dS m-1 (17 flowers, 47.93 g, 431.1 g plant-1 and 3.23 cm respectively) and 4 dS m-1 (15flowers, 36.45 g, 291.85 g plant-1 and 2.8 cm respectively). The separate application of bioumik minimized cell electrolyte leakage at 2 dS m-1 (8.82%) compared to control (11.43%). Additionally, plants treated by lithovit-urea and bioumik had the highest relative water content with 107.3%, 96.5% and 91.2% respectively at 2, 4 and 8 dS m-1. N, Ca and Mg in roots were significantly the highest at 2 dS m-1 (4.5%, 2.6% and 0.5% respectively), at 4 dS m-1 (3.74%, 2.49% and 0.48% respectively) and at 8 dS m-1 (3.21%, 2.61% and 0.32% respectively). K content in roots was maximized following the separate application of bioumik with 3.21% at 2 dS m-1 and 2.55% at 8 dS m-1. Conclusively, lithovit-urea and bioumik helped plants in tolerating salt-stress with an optimal effect obtained after their combination.

Key words:

, , , , ,



1772-1780 A. Ilgaza and A. Arne
Comparative effect of different amount of inulin and symbiotic on growth performance and blood characteristics 12 weeks old calves
Abstract |
Full text PDF (167 KB)

Comparative effect of different amount of inulin and symbiotic on growth performance and blood characteristics 12 weeks old calves

A. Ilgaza and A. Arne*

Latvia University of Life Sciences and Technologies, Faculty of Veterinary Medicine, K. Helmana street 8, LV-3004 Jelgava, Latvia
*Correspondence: astra.arne@gmail.com

Abstract:

The study was focused on assessment of the effect of prebiotic inulin (from Jerusalem artichoke (JA) powder it contain ~50% of inulin) and mixed with probiotic preparation call synbiotic thereof on growth performance and blood parameters of milk calf. In total, 70 milk calves (50+/-5 kg; 23+/-5 d.old) were used in a 57-d experiment. The seven dietary treatments consisted of the control diet (CoG); diet CoG supplemented with different amount of prebiotics (PreG6; PreG12; PreG24; accordingly 6g, 12 or 24 g of JA) and three different amount of synbiotics (SynG6; SynG12; SynG24; accordingly inulin and probiotic 0.25 g Enterococcus faecium (2×109 CFU g-1). Throughout the study prebiotic (PreG) and synbiotic (SynG) groups calf average daily gain (ADG) was increased (p < 0.01) than CoG, the end of study the highest ADG reached PreG12 than SynG12 and it was (p < 0.01) compare with CoG. At the end of te study PreG6 and SynG6;12 hematocrit was higher (p < 0.05), but PreG12;24 and SynG24 (p < 0.01) than CoG. Hemoglobin PreG and SynG12;24 was higher (p < 0.01) compare with CoG. WBC was lower (p < 0.05) PreG24, but there were no differences between synbiotic groups (SynG) compare CoG. PLT was (p < 0.01) higher PreG and SynG supplemented groups than CoG. Total protein PreG12; SynG6;12 (p < 0.01) higher compare CoG. Glucose PreG6;12 is lower (p < 0.05) than CoG. In conclusion, 12g and 24g of JA powder and the same amount ja powder mixed with probiotic Enterococcus faecium can improve the 4 to 12 weeks old calf performance and health status. However, new synbiotic didn’t improve inulin action.

Key words:

, , , ,



552–561 A.V. Miftakhutdinov, E.R. Saifulmulyukov and E.A. Nogovitsina
Alleviation of technological stresses by a feed supplement
Abstract |
Full text PDF (712 KB)

Alleviation of technological stresses by a feed supplement

A.V. Miftakhutdinov, E.R. Saifulmulyukov* and E.A. Nogovitsina

South Ural State Agrarian University, 13 Gagarina street, RU457100 Troitsk, Chelyabinsk Region, Russia
*Correspondence: ernest_saif@mail.ru

Abstract:

Technological stresses affect the productivity of broiler-type chicken and are related directly to poultry farming intensification. Heat stress occurring in conditions of high density keeping, especially at high summer ambient temperatures, is very important. Stress factors influence the metabolic processes in poultry, while reducing the production parameters of operation and, by extension, the efficiency of broiler farming.
The objective of this research was to identify the efficiency of a feed supplement in alleviating technological stresses in poultry industry.
Use of supplement (the preparation contains succinic acid, L-carnitine, betaine, inorganic salts of zinc, manganese, copper and lithium) preserved the production performance of broiler-type chickens in the pre-slaughter period, by reducing the technological load on the poultry body, as it was indicated by an increase in the efficiency of fattening by 16.2 conditional units, meat yield by 1.4%, gross income by 49.2% and a decline in mortality rate by 1.5%. The data on production efficiency indicators of broiler feeding were obtained on a large sample – 6136 heads.

Key words:

, , , , , , , , ,



113–126 D.B. Issa, S.M. Alturki, T.K. Sajyan, Y.N. Sassine
Sorbitol and lithovit-guano25 mitigates the adverse effects of salinity on eggplant grown in pot experiment
Abstract |
Full text PDF (766 KB)

Sorbitol and lithovit-guano25 mitigates the adverse effects of salinity on eggplant grown in pot experiment

D.B. Issa¹, S.M. Alturki², T.K. Sajyan¹²*, Y.N. Sassine¹⁴

¹Department of plant production, Faculty of Agriculture, Lebanese University, Beirut, Lebanon
²Department of Arid Land Agriculture, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 400, Al Ahsa 31982, Kingdom of Saudi Arabia
²University of Forestry, 10 Kliment Ohridski blvd, BG1797 Sofia, Bulgaria
⁴Department of Agricultural Biotechnology, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al Ahsa 31982, Kingdom of Saudi Arabia
*Correspondence: tony.sajyan@st.ul.edu.lb

Abstract:

This trial aimed to study the separate effects of nano-fertilizers and sugar alcohols in mitigating salt-stress on eggplant (Solanum melongena L) crop. For this purpose, two different concentrations of lithovit®-guano25 (A1:0.5 g L-1 and A2:1 g L-1) and sorbitol (B1:5 g L-1 and B2:10 g L-1) were sprayed on eggplant irrigated by three NaCl solutions (EC1:1.5 dS m-1, EC2:3 dS m-1 and EC3 6 dS m-1). Control plants were salt-stressed without any product. Results revealed an inhibitory effect of increasing in salt-stress on vegetative traits (plant height, leaf number, weights of plant parts and root mass fraction), reproductive traits (fruit number, fruit weight, yield plant-1, fruit diameter) and photosynthetic pigments. Control plants at EC6 had the highest cell electrolyte leakage (51.26%). Plant height and fruit number were maximized by A1 at all salinity levels. Additionally, A2 increased fruit weight by 89.98g, 85g and 92.3g compared to control respectively at 1.5, 3 and 6 dS m-1. Yield plant-1 increased by this treatment at all EC levels. At 3 and 6 dS m-1, A2-treated plants had the highest chlorophyll a (respectively 1.67 and 1.4mg g-1 fresh weight), total chlorophyll (respectively 2.38 and 1.9mg g-1 fresh weight) and carotenoids (respectively 193 and 172μg g-1 fresh weight) contents. A2-treated plants had the lowest cell electrolyte leakage at 1.5 dS m-1 (14.27%), 3 dS m-1 (25.31%) and 6 dS m-1 (37.78%). Treating plants with B1 and B2 maximized respectively fruit diameter at 1.5 dS m-1 and water content in all plant parts at 3 dS m-1. Both products helped plants reducing the adverse effects caused by salinity.

Key words:

, , , , ,



483-491 A.J. Kryeziu, N. Mestani, Sh. Berisha and M.A. Kamberi
The European performance indicators of broiler chickens as influenced by stocking density and sex
Abstract |
Full text PDF (485 KB)

The European performance indicators of broiler chickens as influenced by stocking density and sex

A.J. Kryeziu, N. Mestani, Sh. Berisha and M.A. Kamberi*

Department of Biotechnology in Zootechny, Faculty of Agriculture and Veterinary, The University of Prishtina, “Bill Clinton” Boulevard, nn, XK10000, Prishtinë, Republic of Kosovo.
*Corresponding author: E-mail: muhamet.kamberi@uni-pr.edu

Abstract:

The aim of this study was to investigate the influence of different stocking densities on the growth performance of Ross 308 broiler chickens up to six weeks of age. A total of 216 one-day broiler chicks were randomly assigned to three treatment groups based on the stocking density: Low (LSD) = 14 chickens m-2, Medium (MSD) = 18 chickens per m2 and High (HSD) = 22 chickens m-2, with four replications. Higher body weight gain (TWG) was observed for the low (2,043.89 g) and medium (2,008.03 g) compared to the high (1,901.51 g) density. The study revealed that chickens of the LSD treatment consumed significantly (P < 0.01) more feed compared to the HSD chickens. High stocking density (22 m-2) tended to improve feed conversion ratio compared to medium (18 m-2) and low (14 m-2) stocking density, but the differences were not significant (P > 0.05). From the results of this study it can be concluded that broiler chicks can be stocked up to 22 chickens m2, as far as required standards are assured.

Key words:

, , , ,



543-552 D. Lazdiņa, A. Bārdulis, A. Bārdule, A. Lazdiņš, M. Zeps and Ā. Jansons
The first three-year development of ALASIA poplar clones AF2, AF6, AF7, AF8 in biomass short rotation coppice experimental cultures in Latvia
Abstract |
Full text PDF (577 KB)

The first three-year development of ALASIA poplar clones AF2, AF6, AF7, AF8 in biomass short rotation coppice experimental cultures in Latvia

D. Lazdiņa*, A. Bārdulis, A. Bārdule, A. Lazdiņš, M. Zeps and Ā. Jansons

Latvian State Forest Research Institute Silava, 111 Rigas str., LV2169 Salaspils, Latvia; *Correspondence: dagnija.lazdina@silava.lv

Abstract:

Hybrid aspen and willows are the fastest growing tree species used for biomass production in short rotation coppice (SRC) cultures in Latvia. Poplars are suitable for cultivation in Latvia, however, their potential for this purpose as SRC in Latvia and North Eastern Europe has not yet been investigated. There is an increasing interest in using poplar clones to establish short rotation plantations. The aim of this study is to analyse the productivity of the Italian poplar clones AF2, AF6, AF7, AF8 and their potential use for biomass production, as well as the effect of fertilization on the development and survival of trees. The experimental plot consisted of drained mineral soil with the initial spacing of trees ranging from 9,000 to 10,000 trees ha-1 (1.5 m x 0.7–0.5 m). Weed management has been carried out on the plantation once per season every year. Four management methods were tested – control (no fertilization), fertilization with waste water sludge 10 t DM ha-1, wood ash 6 t ha-1, mineral fertilizer NPK (12:5:14) 100 kg ha-1. In the second year, the height of the trees ranged from 0.2 to 2.64 m, on average 1.12 ± 0.005 m. The annual increments during the third year ranged from 0.01–2.14 m, on average 0.787 ± 0.004 m. At the end of the third season, the tree diameters at breast height of all clones varied greatly from 0.36 cm to 4.4 cm. The trees reached average diameters of 1.48 ± 0.007 cm; the tree heights ranged from 0.36 m to 4.24 m and were 1.99 ± 0.01 m, on average at the end of the third season. Depending on the clone and treatment, the amount of fresh biomass was 1.57–10.67 t ha-1(planting density 10,000 trees), and one fifth of the biomass, on average, was located in branches. Sewage sludge fertilizer contributed to the development of the micropatogen Venturia sp., resulting in lower initial retention and delayed development. Mineral fertilizers were the most effective. No animal and frost damages were observed. Overall, the results indicate a significant potential for us for using poplar for bioenergy production, with the optimal rotation age for bioenergy production being more than 3 years.

Key words:

, , ,



743-748 T. Univer, D. Kviklys, J. Lepsis and N. Univer
Early performance of ‘Auksis’ apple trees on dwarfing rootstocks in the Baltic region
Abstract |
Full text PDF (51 KB)

Early performance of ‘Auksis’ apple trees on dwarfing rootstocks in the Baltic region

T. Univer¹, D. Kviklys², J. Lepsis³ and N. Univer¹

¹Polli Horticultural Research Centre of the Institute of Agricultural and Environmental Sciencesof the Estonian University of Life Sciences, Polli, 69108, Viljandimaa, Estonia; e-mail: toivo.univer@emu.ee
²Lithuanian Institute of Horticulture, Kauno 30, LT-54333 Babtai, Kaunas distr., Lithuania;e-mail: d.kviklys@lsdi.lt
³Pure Horticultural Research Station, Abavas 2, Pure, LV-3124, Latvia;e-mail: janis.lepsis@puresdis.lv

Abstract:

‘Auksis’ apple trees on P22, P59, P61, P62, P66, P67, PB-4, Pure 1, B.9, B.396, M.9 and M.26 rootstocks were planted in Estonia, Latvia and Lithuania in 2005. After five growing season, the strongest growth and the highest yield were recorded in Lithuania. The growth rate of trees on B.396, B.9, P62, P67, P66 and Pure 1 was similar to those of trees M.9. The rootstocks P22, P59 and PB-4 appeared to be more dwarfing than M.9. The highest cumulative yield of ‘Auksis’ was obtained from trees grafted on M.9, M.26, P62 and P67. The least productive were trees on PB-4 rootstock at all the places. Effects of rootstock on fruit weight were modest. Rootstock and location interaction was recorded for P61 in growth vigour control, and P22 and Pure 1 in cumulative yield.

Key words:

, , ,



51-58 R. Sestras, E. Tamas, D. Pamfil, L. Mihalte,A. Sestras, L. Chis and C. Qin
The influence of the genotype upon the in vitro and in vivo growth of greenhouse carnations
Abstract |
Full text PDF (45 KB)

The influence of the genotype upon the in vitro and in vivo growth of greenhouse carnations

R. Sestras¹, E. Tamas¹, D. Pamfil¹, L. Mihalte¹,A. Sestras², L. Chis² and C. Qin³

¹University of Agricultural Sciences and Veterinary Medicine, Faculty of Horticulture, 3-5Manastur St., 3400 Cluj-Napoca, Romania, e-mail: rsestras@usamvcluj.ro
²Horticultural Research Station, 3-5 Horticultorilor St., Cluj-Napoca, Romania
³School of Life Science, Shanghai University, Shanghai, 200436, China

Abstract:

Carnations are familiar, widespread, and are among the most popular cut flowers. There is great diversity of greenhouse cultivars belonging to Dianthus caryophyllus L, habitually multiplied through cuttings or micro-propagation. In order to establish whether or not there is a connection between the vigour of the plants technically mature from the greenhouse and their in vitro growth, several traits of greenhouse carnation, grown both in vivo and in vitro were analysed in five cultivars (Polka, Tanga, Dark Tempo, Delphi and Indios). The influence of the genotype upon the vigour of the plants and upon the characteristics of the greenhouse flowers, as well as upon some features of the in vitro growth of the plantlets, was significant. The variability under in vivo conditions ranged from 5.0 to 17.8%, while the characteristics analysed in vitro showed a large span of variability values (s% = 7.9–51.0). Overall, the heritability showed high values for the analysed characteristics, both under in vivo (H2 = 0.660–0.949) and in vitro (H2 = 0.502–0.946) conditions. No statistically ensured correlations were recorded between the plant growth under in vivo conditions and of those with the same genotype under in vitro conditions; therefore the greater vigour of some genotypes from the greenhouse did not imply their more accentuated growth in vitro. The cultivars conspicuous for their superior characteristics will be used as genitors within the improvement programmes and also recommended to be tested for inclusion in the Official Catalogue of Plants.

Key words:

, , , , , ,