scholarly journals The effect of cultural and climatic conditions on the yield and quality of peppermint oil /

1916 ◽  
Author(s):  
Frank Rabak
Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1427
Author(s):  
Gulen Ozyazici

Environmental contamination and the excessive use of inorganic fertilizers resulting in stagnant yields of field crops which necessitate the utilization of combined fertilization approach under changing climatic conditions. Current study was aimed to clarify the influence of several fertilizer sources (chemical, organic, organomineral fertilizers) on yield and quality of coriander (Coriandrum sativum L.). The results revealed that the fertilizer sources significantly affected the yield of coriander cultivars. The absence of “Year x Variety x Fertilizer Type” interactions for any of the noted parameters signaled that the detected “Variety x Fertilizer Type” interactions were constant regardless of the year factor. The recorded values of traits according to fertilizer sources different for the plant height from 61.85 to 69.67 cm, number of branches from 5.98 to 7.71 (piece/plant), number of umbels per the main umbel from 5.62 to 7.18 pieces, seed yield from 1.06 to 1.66 t/ha, the biological yield from 4.29 to 5.70 t ha−1, harvest index from 25.29 to 29.41%, essential oil ratio from 0.29 to 0.33%, and essential oil yield from 3.1 to 5.6 L ha−1. Erbaa variety was observed to be superior over the rest of the varieties producing the maximum values of 6.5 L ha−1 of essential oil, 0.36% essential oil content, 30.9% harvest index, 1.81 t/ha seed yield, and 5.9 t ha−1 biological yield with the treatment of chemical fertilizers.


2010 ◽  
Vol 28 (2) ◽  
pp. 222-226 ◽  
Author(s):  
Luis Eduardo C Antunes ◽  
Nara Cristina Ristow ◽  
Ana Cristina R Krolow ◽  
Sílvia Carpenedo ◽  
Carlos Reisser Júnior

The strawberry cultivation is an important economic activity in the Rio Grande do Sul State, Brazil, however the number of offered cultivars to the growers is reduced. The yield and quality of strawberry (Fragaria x ananassa Duch.) cultivars Camarosa, Galexia, Earlibrite, Festival, Plarionfre and Sabrosa was evaluated under the climatic conditions of Pelotas, Rio Grande do Sul State. We determined the number, mass, total soluble solids (TSS ºBrix), total titratable acidity (TTA), antocianin level and fresh fruits produced in an experimental unit. We also determined the production of fruits per hectare and per plant. The statistical design used in the experiment was of completely randomized blocks with 6 treatments (cultivars) and 4 replicates where the experimental unit was composed of 8 plants. The harvest began in the first half of August, extending to the second half of December, totalling 20 weeks. Plarionfre, Earlibrite and Festival cultivars showed higher production from the first half of October until the end of the first half of November. Camarosa reached higher productivity, mass of plants and fruit weight. There were no differences between the evaluated cultivars in the levels of TSS, antocianin, ATT and pH during the period of evaluation.


2010 ◽  
Vol 58 (2) ◽  
pp. 185-193 ◽  
Author(s):  
M. Bajnok ◽  
L. Szemán ◽  
J. Tasi

No significant studies have yet been reported in Central Europe on the yield and quality of winter harvest pastures. The aim of the research was to collect information about the effect of pre-utilisation (June, July and August) and winter harvest date (November, December, January) on the quantity and quality of fodder from Festuca arundinacea stands. The dry matter, energy, ADF, ADL and ergosterol contents of the yield were examined and it was found that: 1. A shorter regeneration period between harvests resulted in lower dry matter levels, but also in a higher energy concentration and lower ergosterol concentration. 2. The yield and energy concentrations decreased, whereas the ADF, ADL and ergosterol concentrations increased as the winter progressed. 3. Fodder harvested in November produced the best results in terms of yield quantity and quality. The highest yield and energy values were thus achieved by harvesting in November, regardless of pre-utilisation. Despite the cold and the long period of snow cover, the energy values of samples harvested in December and January showed no significant decrease. The weather conditions were more important for fodder quantity and quality than the frequency or date of harvesting. Thus, under the continental climatic conditions in Hungary, extensive utilisation, until late November or early December, is recommended.


2011 ◽  
Vol 51 (No. 6) ◽  
pp. 271-277 ◽  
Author(s):  
W. OPITZ VON BOBERFELD ◽  
K. BANZHAF ◽  
F. HRABE ◽  
J. SKLADANKA ◽  
S. KOZLOWSKI ◽  
...  

In addition to the results published in the first communication (Opitz von Boberfeld et al., 2006) this paper presents crude protein, energy (ME) and ergosterol concentrations of autumn saved herbage at different sites in Central Germany, Poland, Hungary and the Czech Republic. Within these sites, the influence of the factors pre-utilisation and winter harvest date was tested over three consecutive years. Related to the different climatic conditions of the sites, crude protein concentrations of the growths pre-utilised in July varied from 149 g/kg in November to 134 g/kg of dry matter (DM) in January. The influence of climatic conditions was different on each location and varied depending on the year. Generally, the consistent effect of the factor “site” related to altitude could not be observed. While the energy concentrations decreased with advancing winter and partly reached the values below 6 MJ ME/kg of DM in January, the ergosterol concentrations increased. The results demonstrate that under Central European conditions autumn saved herbage, pre-utilised in July, could provide adequate quantity and quality for suckler cows until December. Afterwards, the utilisation of preserved forages becomes essential.  


2011 ◽  
Vol 39 (1) ◽  
pp. 119
Author(s):  
Vasile VÂNTU ◽  
Costel SAMUIL ◽  
Ioan ROTAR ◽  
Alexandru MOISUC ◽  
Iosif RAZEC

The pastoral area of Romania, covering of over 4.8 million ha, has been influenced, over the last decades, by natural and human factors, which affect the normal functioning of the grassland ecosystem. The aim of this paper is to point out the dynamics of phytocoenotic biodiversity, as a result of applying grassland technical measures, in order to improve the yield and quality of grassland ecosystems with minimum effects on the environment. Therefore, the main aim of our study is to establish a positive relationship between biodiversity and the optimum quantity of organic fertilizers, which would improve the quality and quantity of the yield, without diminishing the floristic biodiversity. In the case of the studied grasslands, the phytocenotic biodiversity is influenced by the type of fertilization, the used rates and by the soil and climatic conditions. These grasslands may be improved by manure fertilization and reasonable usage, if proper management is applied. In Gradinari, Caras-Severin county, the dominant species are Festuca rupicola and Calamagrostis epigeios, in Magurele, Brasov county, Agrostis capillaris, Festuca pratensis, Poa pratensis and Trifolium repens, and in Pojorata, Suceava county, Agrostis capillaris, Trisetum flavescens, Trifolium repens and T. pratense species. The highest number of identified species (43) has been recorded by the meadow made up of Agrostis capillaris and Festuca rubra, from Pojorata, Suceava county.


2021 ◽  
Vol 2 (44) ◽  
pp. 21-21
Author(s):  
Alexander Saakian ◽  
◽  

In 2005-2015. studied the effect of liquid organic fertilizer BIOOD-1 as foliar feeding on the yield and quality of various potato varieties in changing meteorological conditions. According to the results of the experiments, it was established that the most stable yields under various weather conditions were shown by the potatoes of the mid-season variety Bryansk delicacy. The low starch content of varieties Nevsky, Udacha was noted in years of high humidity, but with a lack of moisture, the starch content of these varieties increased in the background variant and in the experiment with organic fertilization. Keywords: CLIMATIC CONDITIONS, HYDROTHERMAL COEFFICIENT, MEAN SENIOR PRECIPITATION, POTATO, YIELD, STARCH, HUMIC FERTILIZERS


Author(s):  
O. A. Iusova ◽  
P. N. Nikolaev ◽  
V. S. Vasiukevich ◽  
I. V. Safonova ◽  
N. I. Aniskov

Among spring grain crops, oats are one of the main crops in Siberia. Taking into account climatic factors and production demands, breeding for increased productivity and adaptability to local natural and climatic factors, resistance to biotic and abiotic stresses appears to be currently relevant. This is a key factor for a permanent increase in both yield and quality of agricultural products. The aim of the study is to determine the group of adaptive oat varieties by the content of crude fat in grain for introduction into production and inclusion in breeding programs. The studies were carried out in the conditions of the southern forest-steppe of the Omsk Region during 2013-2018. The indicator of the range of crude fat content according to V.A. Zykin (d), index of ecological plasticity according to D.I. Baranskiy (O), homeostaticity according to V.V. Khangildin (Hоm), an indicator of intensity according to R.A. Udachin (I), the relative stability of the trait N.A. Sobolev (St²), an indicator of the level of stability of the variety according to E.D. Nettevich (PUSS) were calculated. The final assessment of adaptability was based on the sum of the ranks. The minimum range of crude fat content was observed in varieties Irtysh 23 and Fakel (d = 1.87 and 2.97%). Cultivars Irtysh 23, Tarsky 2, Fakel, Sibirskiy Hercules and Sibirskiy golozerny differed in plasticity (O = 6.4–13.6) and homeostaticity (Hom = 0.82). The variety Irtysh 13 (Hom = 0.23) was also homeostatic. The stability of the trait according to N.A. Sobolev characterized all varieties (St² = 0.94–0.99), according to E.D. Nettevich – Irtysh 13, Irtysh 23, Pamyati Bogachkova and Fakel (PUSS = 193.4-305.5%). Having an assortment of estimated indicators of adaptive parameters, it is advisable to apply the ranking and conduct the final assessment according to the sum of the ranks received by each variety. The varieties Irtysh 23 and Fakel (∑ ranks = 23 and 25) and Sibirskiy Holozerny (∑ ranks = 26) are the most adaptive in terms of the content of crude fat in grain for the conditions of the southern forest-steppe of Western Siberia.


Author(s):  
L.A. Chaikovskaya ◽  
◽  
V.V. Klyuchenko ◽  
M.I. Baranskaya ◽  
O.L. Ovsienko ◽  
...  

The use of biological products based on effective strains of microorganisms with a range of useful properties is one of the aspects of biological farming. The long-term field experiments were conducted in the soil and climatic conditions of the Crimea. А positive effect of the combined use of mineral fertilizers (NPK calculated at P30) and pre-sown inoculation of seeds (biopreparation based on L. nimipressuralis CCM 32-3) on the yield and quality of winter wheat grain was shown. The increase in grain productivity of winter wheat by 31 % compared to control (on average for 3 years) and grain quality indicators: protein and gluten – up to 12.5% and 28.0 % (in the control 9.9% and 19.2%, respectively) was revealed.


2021 ◽  
Vol 43 ◽  
pp. e53105
Author(s):  
Marcela Padilha Iastremski ◽  
Juliano Tadeu Vilela de Resende ◽  
Cristhiano Kopanski Camargo ◽  
Marcos Guilherme Ruthes ◽  
Marco Antonio Pereira Santos

The use of genotypes more adapted to climatic conditions can contribute to increase the yield of onion producers. The goal of this study was to evaluate the agronomic performance of 15 onion genotypes in the soil and climatic conditions of Guarapuava, state of Paraná. The study was conducted in the experimental area of Horticulture, Cedeteg campus, Universidade Estadual do Centro-Oeste (UNICENTRO), Guarapuava, state of Paraná, Brazil, from July to November 2018. The experimental design used was randomized blocks, with four replications, and the treatments consisted of four commercial cultivars Optima F1, Bella Dura, Sirius F1, Soberana F1 and eleven experimental genotypes N1, N2, N3, N4, N5, N6, N7, N8, N9, AF4241 and AF4243. Biometric characteristics of the plants, production components and early flowering were evaluated. Plants presented between 6 and 9 leaves, in which N1, N3, N4 and N6 had less than 7 leaves, differing statistically from the others. The cultivar Optima F1 and the genotypes N2, N3, N5, N6, N7 and N8 presented the tallest plants, with 66.1 to 76.0 cm. The pseudostem diameter did not differ significantly between genotypes, showing values between 15.2 and 20.4 mm. Total productivity was higher in genotypes N2, N6, N5, N4, N3, N7 with values from 43.6 to 50.3 t ha-1. The highest average bulb mass was found in N2, N4, N6, Sirius F1, Optima F1 and Soberana F1, with 74.2 to 91.1 g bulb-1. Regarding the commercial classification, the genotypes N2, N4, N5, N6 and the cultivars Sirius F1 and Soberana F1 presented more than 50% bulbs of classes 3+3C+4. Early flowering did not occur in any of the analyzed genotypes. The use of cultivars with high productive performance and adapted to climatic conditions, when handled properly, can result in greater yield and quality of bulbs.


2021 ◽  
Vol 31 (3) ◽  
pp. 91-97
Author(s):  
Nyambuu Erdenebat ◽  
Oyungerel Janlav ◽  
Undarmaa Davaasambuu ◽  
Tsegmid Vanchinkhuu

The purpose of this study was to compare the new technology methods of growing two-stem tomatoes with the method of growing one main stem during the testing of small fruit tomato varieties that are adapted to the soil and climatic conditions of Mongolia. When growing tomato varieties with 2 stems, Seminis-SV7160TC, Galaxy and TY Candy varieties had 169-171 days from germination to 80% of fruit ripening, which is 4-6 days later than growing with 1 main stem. When growing tomato varieties with 2 stems, it is possible to produce 10 or more stems per plant with 10 stems per plant or 10 stems per plant, but the delay in fruit ripening affected the yield and quality of the crop. Жижиг жимст лоолийн (Lycopersicon Esculentum. Mill) сортуудыг 2 ишээр ургуулах шинэ технологийг туршсан дүнгээс Монгол орны хөрс, цаг уурын нөхцөлд дасан зохицох жижиг жимстэй лоолийн сортуудыг сорих, туршихдаа шинэ технологиудын нэг  болох 2 ишээр ургуулах аргыг 1 гол ишээр ургуулах аргатай харьцуулан судлах зорилгоор энэхүү судалгааг явуулсан. Лоолийн сортуудыг 2 ишээр ургуулахад  Seminis-SV7160TC, Galaxy, TY Candy сортуудад соёололтын жигдрэлтээс үр жимсний болцын 80% хүртэлхи хугацаагаар тооцоход 169-171 хоног байсан нь  1 гол ишээр ургуулснаас 4-6 хоногоор оройтсон. Лоолийн сортуудыг 2 ишээр  ургуулахад   салаа иш тус бүрт 5 ш багцэцэг буюу 1 ургамалд 10 ш байхаар ургуулсан. Энэ арга нь  1 ишээр ургуулснаас 3 ш-ээр илүү  багц үр жимс авах боломжтой байсан ч үр жимсний боловсролтын хугацаа оройтсон нь ургацын хэмжээ, чанарт нөлөөлж байсан. Лоолийн сортуудбг 2 ишээр ургуулсан хувилбаруудад  1 м2-ын ургац  KT Orange(5.3 кг), Seminis-SV7160TC(6.3 кг), Galaxy(6.6 кг), TY Candy(6.1 кг), TY 777(6.0 кг) байсан бол 1 гол ишээр  ургуулсан сортуудыг хяналт болгож ижил нөхцөлд ургуулахад  KT Orange(3.6 кг),Seminis-SV7160TC(5.0 кг), Galaxy(6.0 кг),TY Candy(4.8 кг),TY 777(5.3 кг), Вишнийвидный(5.7 кг)  байсан. Эндээс үзэхэд  шинэ технологийн арга болох залгалтын аргыг ашиглахад  сорт тус бүр дээр 0,3-1.7 кг\м2-аар ахиу буюу  3-17 %-ийн нэмүү ургацтай байсан. Түлхүүр үг: гол иш, 2 иш, багцэцэг, үржимс, ургац


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