scholarly journals Planting methods and depths for the yacon (Smallanthus sonchifolius) crop

2020 ◽  
Vol 14 (2) ◽  
Author(s):  
Mateus Agusto Lima Quaresma ◽  
Fábio Luis De Oliveira ◽  
José Franciso Teixeira Do Amaral ◽  
Magno Do Carmo Parajara ◽  
Leandro Pin Dalvi ◽  
...  
Keyword(s):  
High Altitude ◽  
Block Design ◽  
Mortality Rates ◽  
Seedling Mortality ◽  
Smallanthus Sonchifolius ◽  
Planting Methods ◽  
Tuberous Roots ◽  
Crop Development ◽  
Randomized Complete Block Design ◽  
Planting Method

Crop management is necessary in sprouting, cycle and productivity of most plants of commercial interest. However, recommendations and information are scarce for yacon cultivation, mainly regarding the possible interferences of planting method and depth in the crop development and production. Therefore, the objective was to study the influence of the planting methods and depths on yacon tuberous roots development and production in high altitude conditions. The experiment was a randomized complete block design, with four replications, in a subdivided plots scheme. The plots consisted of three planting methods (groove, pit and ridge) and subplots characterized by four planting depths (5, 10, 15, and 20 cm). Evaluations were carried out from the sprouting process of the rhizophores to the yield of tuberous roots. The planting methods in a pit and ridge had lower seedling mortality rates (27.5 and 20.2% lowers than grooves) and higher yields of tuberous roots (31.2 and 21.4% higher than grooves). The planting depths of 5 and 10 cm of the rhizophores were shown to be the most suitable for yacon cultivation for the three planting methods.

scholarly journals Planting recommendations for yacon (Smallanthus sonchifolius) in lowland conditions

2021 ◽  
pp. 564-569
Author(s):  
Mateus Augusto Lima Quaresma ◽  
Fábio Luiz de Oliveira ◽  
Leonardo F Rocha ◽  
Ariany das Graças Teixeira ◽  
Diego Mathias Natal da Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Dry Weight ◽  
Seedling Mortality ◽  
Smallanthus Sonchifolius ◽  
Shoot Dry Weight ◽  
Planting Methods ◽  
Tuberous Roots ◽  
Randomized Block Design ◽  
Planting Method

The purpose of this work was to test yacon planting practices in low elevation conditions. The experimental design was a randomized block design (RBD) with subdivided plots and four replications. Treatments comprised of three planting methods: furrow; ridges and pits; each treatment was divided into subplots, which were four planting depths: 5, 10, 15, and 20 cm. The following variables were tested: sprouting speed, vigorous sprouting rate, average time for sprouting, rhizophore mortality rate, soil temperature and moisture, shoot dry weight, and yield of rhizophores, tuberous roots, total yield, and marketable tuberous roots. The planting methods using pits and furrows had lower seedling mortality rates (30,2 and 41,4% compared to ridges), while furrow led to a higher total tuber yield (17,5 and 18,9% higher than ridges and pits), using depths of 5 and 10 cm. The system with pits also achieved significant yields at 10 cm depth. Using ridges as the planting method would be possible, at depths of 10 and 15 cm, but yields would be lowered. For the conditions of this study, the highest yield of marketable roots was obtained using furrow at 5 and 10 cm of panting depth

scholarly journals RESPONSE OF THE GROWTH AND YIELD OF CIHERANG RICE (Oryza sativa L.) AND WEEDS ON THE DIFFERENT PLANTING METHODS AND WEEDING FREQUENCIES

Agrivet ◽  
2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Djoko Heru Pamungkas ◽  
Zamroni Zamroni ◽  
Suprih Sudradjat
Keyword(s):  
Oryza Sativa ◽  
Rice Yield ◽  
Oryza Sativa L ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Rice Growth ◽  
Planting Methods ◽  
Randomized Complete Block Design ◽  
Planting Method

This study aimed to observe the growth and yield of Chiherang rice (Oryza sativa L) and weeds in response of different planting methods and weeding frequencies. We conducted the study in Semampir, Argorejo, Sedayu Sub-district, Bantul District on April until August, 2018. We arranged field study using randomized complete block design in 3x2 factorials with 3 times repetition. First factor was Jajar legowo (J) stratified as 3 levels; 2:1 (J1), 4:1 (J2), dan 6:1 (J3). Second factor was weeding frequency in 2 levels which were 2 times in 14 and 70 hst (P1) and 3 times in 14, 49 and 70 hst (P2). Observed variables include Ciherang rice growth (plant height, total tillers, percentage of productive tillers, fresh and dried weight of each plant), components of rice yield (grain dry weight of each harvest, percentage of filled grains, yield of each hectares), and weeds (type of weeds, fresh and dry weight of weeds). We analyzed results using variance analysis with significant level of 5%, followed with 5% DMRT test. We found that application of jajar legowo planting method and weeding frequency do not correlates with all growth and weeding frequency variables of Ciherang rice and weeds. 2:1, 4:1 and 6:1 jajar legowo planting methods do not show significant impact both on Ciherang rice growth and yield, and also weeds. Both 2 times (14 and 70 hst) and 3 times (14, 49 and 70 hst) also do not have significant impact on all variables observed.Keywords: Jajar Legowo, Weeding Frequency, Ciherang Rice

scholarly journals Effect of planting method and weeding regime on the performance of transplant Aman rice

2016 ◽  
Vol 27 (3) ◽  
pp. 249-255
Author(s):  
NA Azme ◽  
MD Hossain ◽  
MA Salam
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Treatment Results ◽  
Planting Methods ◽  
Free Treatment ◽  
Randomized Complete Block Design ◽  
Biological Yield ◽  
Hand Weeding ◽  
Planting Method ◽  
Experimental Treatments

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during July to December 2014 to evaluate the effect of planting method and weeding regime on the performance of transplant Aman rice. Two planting methods viz. line transplanting and haphazard transplanting and six weed control treatments viz. no weeding, one hand weeding at 21 DAT, two hand weeding at 21 and 42 DAT, pre-emergence herbicide Rifit 500 EC at 7 DAT, pre-emergence herbicide Rifit 500 EC at 7 DAT + one hand weeding at 42 DAT and weed free were used as experimental treatments with three replications in a randomized complete block design (RCBD). Planting methods, weeding treatment and their interaction significantly influenced most of the crop characters and yield components of transplant Aman rice. The highest effective tillers hill-1 (9.30),grain panicle-1 (185.4), grain yield (3.89 t ha-1), straw yield (5.57 t ha-1), biological yield (9.54t ha-1) and harvest index (41.08) were obtained from line transplanting. Complete weed free treatment produced the highest total tillers hill-1 (12.37), effective tillers hill -1 (9.89), grain yield (4.11 tha-1) and biological yield (9.94 t ha-1).The highest total tillers hill-1(13.07), effective tillers hill -1(10.70), grain yield (4.50t ha-1) and biological yield (10.79 t ha-1) were obtained from line transplanting under weed free treatment. Results revealed that line transplanting with pre-emergence herbicide Rifit 500 EC at 7 DAT + one hand weeding at 42 DAT might be used to control weeds effectively and to get higher yield of transplant Aman rice.Progressive Agriculture 27 (3): 249-255, 2016

scholarly journals Relationship between bud number in seed branches and yield aspects of sweet potato

2021 ◽  
Vol 39 (4) ◽  
pp. 451-457
Author(s):  
Amanda C Perrud ◽  
Lorrayne G Bavaresco ◽  
André R Zeist ◽  
Murilo HS Leal ◽  
André D Silva Júnior ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Block Design ◽  
Ground Level ◽  
Growth And Yield ◽  
Root Number ◽  
Consumer Market ◽  
Market Values ◽  
Tuberous Roots ◽  
Randomized Complete Block Design ◽  
Below Ground

ABSTRACT Planting sweet potato branches with the appropriate bud number and disposition, below and above ground, can favor vegetative growth and yield that better fit the marketable standards. This study aimed to explore the influence of the number of buds and their distribution ratio, above and below ground level, on the agronomic and marketable components of sweet potato tuberous roots. The experiment was carried out in a randomized complete block design with three replications. The treatments were arranged in a factorial scheme (3 x 5), with 2, 4, and 8 above-ground buds combined with 2, 4, 6, 8, and 10 below-ground buds. Branches from the UZBD 06 accession (Canadense standard) were used. Vegetative, productive, and marketable traits of roots were evaluated. The use of branches with a greater number of buds above and below ground increased shoot dry biomass. Planting seed branches with 8 buds above and 8 buds below ground provided a greater number and production of marketable roots. The use of 10 buried buds increased root number and yield in the 150-450 g marketable classes, which the consumer market values the most.

scholarly journals TAKSASI PRODUKSI MATA TUNAS SEBAGAI BENIH TEBU (SACHARRUM OFFICINARUM L.) DENGAN PENDEKATAN ANALISA REGRESI

2018 ◽  
Vol 25 (2) ◽  
pp. 273
Author(s):  
Ahmad Dhiaul Khuluq ◽  
Ruly Hamida
Keyword(s):  
Regression Analysis ◽  
Standard Error ◽  
Block Design ◽  
Stem Number ◽  
Central Java ◽  
Randomized Complete Block Design ◽  
Analysis Calculation ◽  
Independent Variable ◽  
Number Of Stems ◽  
Planting Method

<p>One of the problems encountered in the development of sugarcane (Sacharrum officinarum L.) includes the availability of sugarcane seed both in quality and quantity. Evaluation of bud sett planting method in seed production was required in order to achieve the expected results. The study was conducted at the experiment station Muktiharjo, Central Java in 2012 using PSJT 941 varieties. Treatments applied were the different number of buds on bud sett which were at 3 levels, 1 bud, 2 buds or 3 buds. Research was arranged in a randomized complete block design (RCBD) with 5 replications. Observations were conducted on germination, tillering, plant height, number of stems, number of suckers and number of buds. The data obtained were analyzed with ANOVA and further tested using the Duncan test. Production assessment modeling approach was performed by a regression analysis. Calculation of stem number on 2 buds showed the highest with 9.6 stems/m, 9.2 buds/stem and with the sucker numbers lowest at 0.38 suckers/m. The highest production buds was obtained at planting 2 buds with 847,848.06 buds/ha which can be used as 8.83 ha for the milled sugarcane plantation. Assessment of bud production per hectare could use equation Y = 159655,48.e0,171.X with the independent variable of stem numbers per meter with a correlation coefficient of 0,9007 and a standard error of 1,0699.</p>

scholarly journals Physicochemical Quality, Antioxidant Capacity and Nutritional Value in Tuberous Roots of Some Wild Dahlia Species

2019 ◽  
Vol 47 (3) ◽  
Author(s):  
Esteban A. RIVERA-ESPEJEL ◽  
Oscar CRUZ-ALVAREZ ◽  
José M. MEJÍA-MUÑOZ ◽  
María R. GARCÍA-MATEOS ◽  
María T.B. COLINAS-LEÓN ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Digital Object Identifier ◽  
Physicochemical Quality ◽  
Tuberous Roots ◽  
Randomized Complete Block Design ◽  
Selection Of

The aim of this research was to evaluate the physicochemical quality, antioxidant capacity and nutritional value in tuberous roots of some wild dahlia species. The experiment was carried out in the Department of Plant Science of the Autonomous University Chapingo, Mexico. Plants were established in a randomized complete block design with five replications. The total soluble solids (TSS), titratable acidity (TA), vitamin C (VC), total phenols (TP), antioxidant capacity (AC), inulin and its proximate composition were evaluated. Among the materials analyzed, the most outstanding wild species were Dahlia campanulata, D. coccinea and D. brevis, where D. campanulata stood out for its concentration of VC (0.05 mg 100 g-1), AC (1.88 mg VCEAC g-1), inulin, DM and TC (72.25, 24.38 and 88.37%, respectively), however, the inulin content was similar to D. coccinea (66.17%), which was also outstanding with respect to the content of TP (1.74 mg GA g-1). Likewise, D. brevis presented the highest values of RFi (5.49%) and A (78.42%). According to our results, the tuberous roots of wild dahlia species can be used as food, as well as being a source of selection of traits of nutraceutic interest for genetic improvement.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********  

scholarly journals 2,4-D Hormesis Effect on Soybean

2019 ◽  
Vol 37 ◽  
Author(s):  
J.R.O. SILVA ◽  
J.N.R. MARQUES ◽  
C.V.C. GODOY ◽  
L.B. BATISTA ◽  
A.A. SILVA ◽  
...  
Keyword(s):  
Block Design ◽  
Quadratic Model ◽  
Soybean Seeds ◽  
Grain Number ◽  
Crop Development ◽  
Randomized Complete Block Design ◽  
Hormesis Effect ◽  
Two Stages ◽  
Higher Doses ◽  
Time Of Harvest

ABSTRACT: The hormesis effect of 2,4-D, applied at two stages of soybean development, on the physiological components of crop yield, was investigated. Soybean seeds of the cultivar ‘AG 3680 IPRO’ were sown in pots containing 7 L of a substrate and kept in a greenhouse. A randomized complete block design with four replicates was used. Eighteen treatments were tested, arranged in a split-plot scheme. The plots consisted of two stages of herbicide application (V4 and V6), and the split-plots were arranged by nine 2,4-D doses (0, 5, 10, 15, 20, 25, 30, 40, and 50 g ha-1). At the time of harvest, 100 days after sowing, significant interactions between crop development stages and 2,4-D doses were observed for the number of nodes in the main stem (NNMS) and the number of pods per plant (NPP). Both NNMS and NPP were not affected by 2,4-D during V6, but they increased with doses up to 20.2 g ha-1 and 22.5 g ha-1, respectively, during V4 and declined at higher doses according to a quadratic model, thus characterizing hermetic effect. Regardless of the application stage, the number of grains per plant and weight of a thousand grains were reduced as doses increased. However, the grain number and grain mass per plant reached maximum values for doses of 20.3 g ha-1 and 12.9 g ha-1, respectively. It was concluded that 2,4-D causes hormesis effects on the soybean crop ‘AG 3680 IPRO’ pot-grown in greenhouse conditions, regardless of the application stages herein tested.

scholarly journals The Effect of Different Planting Methods on Growth and Yield of Selected of Cassava (Manihot esculenta) Cultivars

2020 ◽  
Author(s):  
A. Narmilan ◽  
S. Puvanitha
Keyword(s):  
Sri Lanka ◽  
Manihot Esculenta ◽  
Block Design ◽  
Growth And Yield ◽  
Limiting Factors ◽  
Small Scale ◽  
Storage Roots ◽  
Yield Attributes ◽  
Planting Methods ◽  
Planting Method

Background: Cassava (Manihot esculenta Crantz) is a source of carbohydrate among the population after maize and rice and highly contributes to food security and livelihood to majority of small scale farmers in Sri Lanka as well as in African continent. The production of these starchy plants is declining due to the problem of low yield, high labor cost, pest and diseases damage and shortage of land. However among the yield limiting factors of cassava, the planting method of stem cuttings which depend on plant cultivar and environmental conditions. Therefore, the present study was carried out to reveal information on the effect of planting methods on the growth and yield attributes of cassava. Methods: The field experiment was conducted at the Farmer’s field in the Batticaloa and laboratory experiment was led in South Eastern University of Sri Lanka which is located in Sri Lanka. The field trail was carried out over a period of four months during from May to September in 2018. The treatments used were three planting positions (Angled, vertical and horizontal) and two cultivars (“cv. Local” and “cv Kirikawadi”) were combined in factorial arrangement and laid out in randomized complete block design with three replications. Result: The result revealed that root yield was significantly (P d” 0.05) affected by the interaction effects of the planting position and varieties. Significant differences were observed among planting methods in all tested variables. Based on the study, storage roots yield of cassava could be enhanced by planting method of angled position.

scholarly journals Inheritance of Flowering without Vernalization in Seed-propagated Lilium formosanum Wallace

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1100C-1100
Author(s):  
David C. Zlesak ◽  
Neil O. Anderson
Keyword(s):  
Block Design ◽  
Vernalization Requirement ◽  
First Year ◽  
Dominant Allele ◽  
Seedling Mortality ◽  
Randomized Complete Block Design ◽  
Unique Species ◽  
Lilium Formosanum

A majority of commercial Lilium hybrids and species do not flower the first year from seed or scales due to an obligate vernalization requirement. The Formosa lily (L. formosanum) is a unique species within the genus Lilium because some genotypes flower from seed the first year without vernalization. The objective of this study is to determine the inheritance of stem emergence, which culminates in flowering, in seed-propagated families without vernalization. Nine L. formosanum genotypes, selected from six populations for obligate or non-obligate vernalization for flowering, were intermated to generate 23 families with 104 seedlings per family. Families were grown in a randomized complete-block design at 21 °C (day/night) and data collected were seedling mortality, stem emergence or rosetting without vernalization, and weeks to emergence. At the end of 44 weeks, rosetted genotypes were vernalized for 8 weeks (4 °C); 100% emerged. We propose this trait is controlled by two genes. For flowering without vernalization to occur, there needs to be at least one dominant allele at one of the loci. Locus Ver2 has less penetrance than Ver1. Families segregating for dominant alleles at both Ver1 and Ver2 emerged sooner (34.2 weeks) than those segregating for a dominant allele at only Ver1 (36.1 weeks) or Ver2 (37.6 weeks). Identification of these genes can aid in the development of uniform, fast-flowering L. formosanum hybrids as well as aid in the introgression of this trait into standard commercial lily classes.

Effect of stocking rate on pig performance in a wean-to-finish production system

2005 ◽  
Vol 85 (1) ◽  
pp. 1-5 ◽  
Author(s):  
J. M. DeDecker ◽  
M. Ellis ◽  
B. F. Wolter ◽  
B. P. Corrigan ◽  
S. E. Curtis ◽  
...  
Keyword(s):  
Block Design ◽  
Average Daily Gain ◽  
Mortality Rates ◽  
Morbidity And Mortality ◽  
Stocking Rate ◽  
Randomized Complete Block Design ◽  
Pig Performance ◽  
Feeder Spaces ◽  
Crossbred Pigs ◽  
Daily Gain

Crossbred pigs (n = 1,296) were used in a randomized complete block design to evaluate three stocking rate treatments (22, 27, or 32 pigs pen-1) on growth performance from weaning [5.0 ± 0.01 kg body weight (BW); 15 ± 1 d of age] to 24 wk post-weaning. Floor and feeder spaces per pig were 0.78 m2 and 4.2 cm, 0.64 m2 and 3.4 cm, and 0.54 m2 and 2.9 cm for group sizes of 22, 27, and 32, respectively. During the first 8 wk postweaning there was a tendency for average daily gain (ADG) (511, 505, and 497 g d-1, respectively; P = 0.07) and BW (35.1, 34.7, and 34.3 kg, respectively; P = 0.08) to decrease linearly as stocking rate increased. Moreover, from week 8 to 18, week 18 to 24, and for the overall period (weaning to week 24) both ADG (688, 660, and 635 g d-1 for the overall period, respectively) and BW (121.8, 117.1 and 113.1 kg at week 24, respectively) decreased linearly (P < 0.001) with increasing stocking rate. There were no treatment differences in the coefficient of variation in pig BW within a pen at any stage of the study. Morbidity and mortality rates increased linearly (8.5, 10.2, and 12.7%; P < 0.05) with increasing stocking rate. In conclusion, decreasing group size, thereby increasing floor and feeder space pig-1, reduced morbidity and mortality and increased growth rate after 8 wk post-weaning resulting in heavier pigs at 24 wk post-weaning for the smaller groups. Key words: Pigs, stocking rate, weaning, finishing

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