scholarly journals Biology and bulb production of Eleutherine bulbosa (Iridaceae), a native species from Borneo, Indonesia

2021 ◽  
Vol 27 (2) ◽  
pp. 232-237
Author(s):  
Ni Made Armini Wiendi ◽  
Nessa Maulida ◽  
Krisantini Krisantini
Keyword(s):  
Native Species ◽  
Leaf Size ◽  
Fertilizer Application ◽  
Ornamental Plant ◽  
Rice Hulls ◽  
Secondary Axis ◽  
Size Number ◽  
Wild Harvesting ◽  
Npk Fertilizer ◽  
Shoot Emergence

Abstract Eleutherine bulbosa is a known ornamental plant of the Iris family, which originated from Central Borneo, Indonesia. The bulbs of E. bulbosa have long been used as a medicinal source by the local people of Borneo. Despite its known medicinal and other values, studies on the morphology and efficiency in bulb production of this species are limited. The aims of our study are to examine the vegetative and reproductive morphology of E. bulbosa, and to determine the effect of various dosages of NPK fertilizer on flowering and bulb production. The plants were grown in pots using potting mix consists of equal volume of burnt rice hulls, cocopeat, and organic manures (1:1:1). Our study showed that E. bulbosa has a cymose rhipidium inflorescence with 25-50 mm long peduncles, have 3-4 umbel on the secondary axis, each consists of 10-12 florets that opens in turn every day. Florets are 20-30 mm long, 20 mm in diameter, 10-15 mm pedicels, and short-lived. The perianth is white, about 25 mm wide with yellow anthers and stigma. Fruits were not formed during the duration of the study. NPK fertilizer application at the lowest dose of 1 g per pot had promoted earlier shoot emergence and vegetative growth, including plant height, leaf number, leaf size, number of tillers, and bulb production compared to control (no fertilizer). Application of fertilizer at 1 and 2 g per plant significantly promoted earlier flowering, whereas application at 3 g per plant delayed and reduced the proportion of flowering plants. The results of this study can aid in taxonomic identification and efficient cultivation of this plant for uses as potted flowering ornamentals or bulb production for different purposes. Higher cultivation and reduced wild harvesting can result in the conservation of this species.

What drives the vital rates of secondary hemiepiphytes? A first assessment for three species of Heteropsis (Araceae) in the Colombian Amazon

2015 ◽  
Vol 31 (3) ◽  
pp. 251-265 ◽  
Author(s):  
María Paula Balcázar-Vargas ◽  
Tinde R. van Andel ◽  
Paul Westers ◽  
Pieter A. Zuidema
Keyword(s):  
Growth Rates ◽  
Vegetative Propagation ◽  
Slow Growth ◽  
Gradual Increase ◽  
Leaf Size ◽  
Stem Length ◽  
Vital Rates ◽  
Size Number ◽  
Colombian Amazon ◽  
Study Species

Abstract:Secondary hemiepiphytes rely on other plants (hosts) to grow vertically. After germinating on the forest floor, their seedlings search a host to ascend. We recorded information on survival, growth, reproduction and vegetative propagation of three Heteropsis species, to evaluate what drives their vital rates. We measured 700 individuals of each study species between 2007 and 2009 in the southern Colombian Amazon. A gradual increase in stem length, leaf size, number of roots and plagiotropic branches was found with increasing height of Heteropsis individuals on their hosts. Survival of leafless non-climbing seedlings was very low (28% annually); increasing substantially (84–94%) once the seedling had ascended a host. The three Heteropsis species presented slow height growth rates (c. 2–8 cm y−1) with large variation, while a substantial percentage of the stems (31–62%) did not grow or dried out. Vegetative propagation in Heteropsis may act as a dispersion-propagation strategy to find a suitable host and reach the canopy again after falling. The slow growth rates suggest that Heteropsis individuals that have reached the canopy are rather old. Once plants have reached the tree crowns, their longevity is largely determined by the survival of the host tree.

The biosystematics of the genus Lotus (Leguminosae) in Canada. I. Cytotaxonomy

1968 ◽  
Vol 46 (5) ◽  
pp. 557-583 ◽  
Author(s):  
Ilse I. Zandstra ◽  
William F. Grant
Keyword(s):  
Native Species ◽  
Cytological Study ◽  
Tube Length ◽  
Herbarium Specimens ◽  
The North ◽  
Size Number ◽  
Single Genus ◽  
Living Material ◽  
Peduncle Length ◽  
First Time

A morphological and cytological study of native and introduced Lotus species found in Canada has been conducted on both living material and on over 600 herbarium specimens from 20 Canadian and American herbaria. Illustrations of flowers, seed, ovaries and styles, habit, and geographical distribution for each species are given. Five native species, L. denticulatus (E. Drew) Greene (annual (A), self-fertilized (S), 2n = 12), L. formosissimus Greene (perennial (P), outcrossing (O), 2n = 14), L. micranthus Benth. (A, S, 2n = 14), L. pinnatus Hook. (P, O, 2n = 14), and L. purshianus (Benth.) Clem. and Clem. (A, S, 2n = 14), and four introduced species, L. corniculatus L. (P, O, 2n = 24), L. krylovii Schischk. and Serg. (A, S, 2n = 12), L. pedunculatus Cav. (P, O, 2n = 12), and L. tenuis Waldst. et Kit. (P, O, 2n = 12) were found in Canada. Chromosome numbers are reported for the first time for L. formosissimus, L. micranthus, and L. pinnatus. Drawings of karyotypes and idiograms based on chromosome analyses are presented. Morphological observations made include style shape, pollen size and shape, seed size, number of flowers, length of standard, calyx index (length of calyx/length of calyx tube), length of peduncle, length of legume, length of petiole, and central leaflet index (leaflet length/leaflet width). Results of hydrocyanide tests on leaves of the native species were negative. The relationships of the different taxa are discussed and it is considered that both the North American and Old World species should be included in a single genus Lotus.

scholarly journals RESPON PEMBERIAN PUPUK NPK TERHADAP PERTUMBUHAN BIBIT KOPI ROBUSTA (Coffee robusta)

2020 ◽  
Vol 9 (1) ◽  
pp. 40-48
Author(s):  
Syahruni Thamrin ◽  
Junaedi Junaedi ◽  
Irmayana Irmayana
Keyword(s):  
Plant Height ◽  
Fertilizer Application ◽  
Stem Diameter ◽  
Coffee Plant ◽  
Plant Seeds ◽  
Robusta Coffee ◽  
Plant Cultivation ◽  
Number Of Leaves ◽  
Npk Fertilizer ◽  
Plant Seedlings

The study aims to determine the effect of various doses of NPK fertilizer on the growth of Robusta coffee plant seeds.  The study was conducted at the screen house of the Department of Plantation Plant Cultivation at the Pangkep State Polytechnic of Agricultural.  The study uses a simple statistical analysis with a Randomized Group Design (RBD) pattern, which is to calculate the mean (average) of each experiment, which consists of 3 levels of treatment, namely: without applying NPK fertilizer (P0), NPK fertilizer application with a dose of 14 grams (P1), application of NPK fertilizer at a dose of 18 grams (P2), and application of NPK fertilizer at a dose of 22 grams (P3). The results showed that NPK fertilizer application had no significant effect on plant height, number of leaves and stem diameter of coffee plant seedlings.    But visually, the best treatment for plant height is NPK fertilizer with a dose of 18 grams (P2), for the number of leaves is NPK fertilizer with a dose of 22 grams (P3), and for the stem diameter all treatments are the same except for the smallest P1.

scholarly journals Manually Feed NPK Fertigation Improves Growth and Yield of Chili Pepper Hybrids in Ultisol

Akta Agrosia ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 19-26
Author(s):  
Catur Herison ◽  
Rustikawati Rustikawati ◽  
Hasanudin Hasanudin ◽  
Usman K.J. Suharjo ◽  
Merakati Handajaningsih ◽  
...  
Keyword(s):  
Block Design ◽  
Fertilizer Application ◽  
Chili Pepper ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Dry Land ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Hybrid Cultivar ◽  
Planting Season

Extending the planting area to a less-fertile soil, such as Ultisols, become inevitable choice to increase the national chili pepper production in Indonesia as this types of soil is the largest part of dry land of Indonesia, about 29.7% or around 51 million ha.  However, efforts to increase its productivity by providing sufficient fertilizers application is most frequently inefficient because in the conventional fertilizer applications, broadcasted fertilizer on the soil bed, are not readily available for the plant as their solubility is limited under the plastic mulch and still in the form of granular until the end of planting season.  Fertigation, therefore, maybe the answer for this problem.  The objective of this study was to determine the best NPK fertigation method on four chili pepper hybrids.  The experiment was conducted in a randomized complete block design with three replication, and the treatments were arranged in a split plot design.  As the main plots were NPK fertigation intensity, i.e. 100%, 75%, 50%, 25% and 0% fertigation with the remnant fertilizers were circularly broadcasted surrounding the plant.  As the subplots were chili pepper hybrids, i.e. ‘Maxima’, H39, H14, and ‘UNIB CHR17’.  The results showed that there was no interaction effect of fertigation intensity indicated that all hybrid genotypes showed similar pattern of responses.  The H39 hybrid had better vegetative growth compared to other hybrids in term of plant height, dichotomous height, stem diameter, number of branches, plant fresh-weight.  Whereas the hybrid cultivar ‘Maxima’ showed the highest yield followed by H14 and cultivar ‘UNIB CHR17’.  The 100% fertigation was the best method of NPK fertilizer application for chili pepper in Ultisols.keywowrd: fertigation, chili pepper, fertilizer application, acidic soil

scholarly journals The effects of zinc biofortification of seeds and NPK fertilizer application on the growth and yield of sesame (Sesamum indicum L.)

2021 ◽  
Vol 117 (1) ◽  
pp. 1
Author(s):  
Ehiokhilen Kevin EIFEDIYI ◽  
Grace Adejoke ILORI ◽  
Henry Emeka AHAMEFULE ◽  
Abduquadir Yusuf IMAM
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Zinc Content ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
High Yield ◽  
High Zinc ◽  
Npk Fertilizer ◽  
Four Levels ◽  
Cropping Seasons

<p>Soils of the southern Guinea savanna zone of Nigeria are inherently infertile due to shortened fallow period and the continuous use of inorganic fertilizer which depletes the soil of micronutrients such as zinc over time. A field trial was carried out at the Teaching and Research Farm of the University of Ilorin, Nigeria during the 2016 and 2017 cropping seasons to evaluate the effect of zinc and NPK fertilizer on the growth, yield and zinc concentration of seeds of sesame. The experiment was laid out as a factorial fitted into a randomized complete block design (RCBD), replicated thrice. The treatment consisted of four levels of ZnSO<sub>4</sub> (0, 5, 10 and 15 kg ha<sup>-1</sup>) and four levels of NPK 15:15:15 (0, 100, 200 and 300 kg ha<sup>-1</sup>). Data collected were subjected to analysis of variance (ANOVA) and means were separated using new Duncan multiple range test at 5 % level of probability. Results obtained showed significant effects of Zn and NPK rates on plant height, number of leaves, yield per plot and yield per hectare. The application of 15 kg ha<sup>-1</sup> Zn and 300 kg ha<sup>-1</sup> (15:15:15) NPK resulted in high yield and high zinc content of seeds.</p>

scholarly journals Hitchhiking Exotic Clam: Dreissena polymorpha (Pallas, 1771) Transported via the Ornamental Plant Trade

Diversity ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 410
Author(s):  
Jiří Patoka ◽  
Barbora Patoková
Keyword(s):  
Czech Republic ◽  
Zebra Mussel ◽  
Dreissena Polymorpha ◽  
Native Species ◽  
Ornamental Plant ◽  
Decision Makers ◽  
The Czech Republic ◽  
Tropical Regions ◽  
Invasive Mussel ◽  
Ornamental Species

Ornamental aquaculture is one of the main sources of non-native species worldwide. Unintentionally transported “hitchhiking” organisms have been previously recorded; although most of these species are transported from tropical regions, here we report on the first accidental transport of the zebra mussel (Dreissena polymorpha) in a shipment of ornamental Aegagropila linnaei (Chlorophyta) from Russia to the Czech Republic. This invasive mussel is listed on the national blacklist of alien species in the Czech Republic and can be easily released in outdoor garden ponds together with A. linnaei. Since the Czech Republic is known to be a gateway for aquatic ornamental species from a European perspective, re-export to other European countries is also possible. Thus, the spread of D. polymorpha via this pathway cannot be excluded. This finding should be of importance to conservationists, traders, decision-makers and other stakeholders.

scholarly journals EFFECTIVENESS OF SOWING APPLICATION OF DIFFERENT DOSES OF UREA-AMMONIA LIQUORKAS-32, AMMONIUM SULFATE AND COMPOUND NPK FERTILIZER DIAMMOPHOSKA IN LINSEED FLAX CULTIVATION IN TEMPERATELY ARID FOREST-OUTLIER STEPPE

2021 ◽  
pp. 11-16
Author(s):  
P.Yu. Latartsev ◽  
◽  
O.I. Antonova ◽  
Keyword(s):  
Ammonium Sulfate ◽  
Seed Yield ◽  
Seed Quality ◽  
Fertilizer Application ◽  
Nitrogen Fertilizers ◽  
Resource Saving ◽  
Crop Density ◽  
Arid Steppe ◽  
Npk Fertilizer ◽  
Different Doses

The farming enterprise AO Orbita annually cultivates linseed flax on an area of more than 8 thousand hectares. The areas under crop are located in the zone of temperate-ly arid steppe where resource-saving cropping technolo-gies with direct sowing and fertilization are used. The pre-vailing soils of the arable lands are leached chernozems with low nitrogen supply, increased phosphorus and high exchange potassium. To obtain a seed yield of 2.0 t ha or more, it is necessary to optimize flax nutrition during the first month of its growth. The best fertilizers for small-seeded flax are liquid nitrogen fertilizers and, first of all, urea-ammonia liquor KAS-32containing three forms of nitrogen. However, such experiments are rare in the Re-gion. This paper presents the results of the action of at sowing application of different KAS-32rates with ammoni-um sulfate dissolved init and compound NPK fertilizerDi-ammophoska by using a converted seeder. It was found that under arid conditions (the hydrothermal index over the growing season varied from 0 to 0.6 at 0.74-0.91 normal), fertilizer application contributed to greater crop density, boll formation and the formation of seed yield by 0.06-0.8 t ha above the control. The increase made 4.2-55.9%, the pro-tein content increased to 17.04-20.16% with a protein yield of 0.257-0.412 t ha as compared to 0.24 in the control; the oil content increased to 50.2-52.2% and oil yield –to 0.784-1.128 t ha as compared to 0.736 in the control. The highest indices of yield and seed quality were obtained when 50 kg ha of KAS-32 and ammonium sulfate were applied with 80 kg ha of Diammophoska compound NPK fertilizer.

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