scholarly journals KERAGAMAN FENOTIPE DAN PRODUKTIVITAS LABU KUNING NUSANTARA (Cucurbita moschene Dutchene) DALAM RANGKA PENGEMBANGAN VARIETAS UNGGUL

BUANA SAINS ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 137
Author(s):  
Reza Prakoso Dwi Julianto ◽  
Astri Sumiati
Keyword(s):  
Agricultural Land ◽  
Beta Carotene ◽  
Carotene Content ◽  
High Carbohydrate ◽  
Agronomic Character ◽  
Pumpkin Seeds ◽  
Male Flowers ◽  
Materials Used ◽  
Female Flowers ◽  
Tolerance Criteria

The increase of population and the depletion of productive agricultural land causes the availability of rice as the staple food as carbohidrat becomes unbalanced. Efforts to reduce dependence on rice should be made, through the diversification of alternative food crops containing high carbohydrates. Pumpkin plants (waluh) is one of the crop that have high carbohydrate content and has many types. This research aims to collect various types of yellow squash varieties as the initial material in the assembling of superior varieties, and to identify vegetative character and agronomic character of yellow squash pumpkin varieties. The research was conducted in Randuagung Village, Lumajang Regency with height of 112 asl. The materials used in are local lumajang pumpkin seeds and local poor pumpkin. The results of this study indicate that the ratio of male flowers and female flowers on both varieties of local yellow squash showed the number of male flowers more than the number of female flowers. The beta-carotene content of local lumajang is lower than the local yellow squash is seen from the color of the pumpkin the yellow is getting faded and the taste is less sweet. The resistance to the disease of both varieties of local yellow squash indicates the tolerance criteria. The male juvenile blueberry male jungle flowers are faster than the local yellow squash lumajang, but the age of the local pumpkin flower lumajang is faster than the local yellow squash.The yellow local pumpum lumajang color is relatively the same that is brown, while the varieties of local yellow pumpkin there is a difference that is brown and green.

Studies in the Alismataceae. XI. Development of the inflorescence and flowers of Wiesneria triandra (Dalzell) Micheli

2000 ◽  
Vol 77 (11) ◽  
pp. 1569-1579
Author(s):  
W A Charlton
Keyword(s):  
Shoot Development ◽  
Annual Plant ◽  
Foliage Leaf ◽  
The Family ◽  
Unisexual Flowers ◽  
Male Flowers ◽  
Female Flowers

Wiesneria triandra (Dalzell) Micheli is an unusual annual plant of the Alismataceae with spike-like inflorescences bearing unisexual flowers. Shoot development follows the sympodial pattern of other Alismataceae, but the cycle is so condensed that initiation of each foliage leaf is followed by inflorescence formation. The plant develops a tufted habit by the formation of an unusual accesory bud adjacent to each inflorescence. Male flowers have three sepals, three petals, three stamens, and usually three carpellodes; female flowers have a similar perianth, three staminodes, and three or more carpels. Up to the first three carpels, floral parts are arranged in alternating trimerous whorls. Additional carpels may occur above and between those of the first whorl. The androecium is particularly unusual for the Alismataceae since it has conventional alternation of stamens with petals rather than the antipetalous pairs of stamens commonly perceived in the family, but the phylogenetic postion of Wiesneria within the family (as revealed by other studies) indicates that the apparently conventional androecium of Wiesneria represents a derived state rather than a primitive one. The unisexual flowers also represent a derived state.

Retinol and beta carotene content of indigenous raw and home-prepared foods in Northeast Thailand

1999 ◽  
Vol 64 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Pongtorn Sungpuag ◽  
Sommai Tangchitpianvit ◽  
Uraiporn Chittchang ◽  
Emorn Wasantwisut
Keyword(s):  
Beta Carotene ◽  
Northeast Thailand ◽  
Carotene Content

Pollination ecology of Monstera obliqua (Araceae) in French Guiana

2007 ◽  
Vol 23 (5) ◽  
pp. 607-610 ◽  
Author(s):  
Mathieu Chouteau ◽  
Melanie McClure ◽  
Marc Gibernau
Keyword(s):  
French Guiana ◽  
Pollination Ecology ◽  
Lower Portion ◽  
Floral Rewards ◽  
Pollination Mechanisms ◽  
Unisexual Flowers ◽  
Male Flowers ◽  
Female Flowers

Data on pollination ecology of Araceae are still scarce and most concern species belonging to the subfamily Aroideae (García-Robledo et al. 2004, Gibernau 2003, Ivancic et al. 2004, 2005; Maia & Schlindwein 2006). In this subfamily, inflorescences consist of unisexual flowers: female flowers are located in the lower portion and the male flowers are in the upper portion of the inflorescence (Mayo et al. 1997). In the documented neotropical Aroideae, pollinators are nocturnal beetles and pollination mechanisms take place within a floral chamber during a short flowering cycle (generally 24–48 h) with floral rewards (sterile flowers rich in proteins and/or lipids) for the beetle pollinators, the secretion of resin to secure pollen on the pollinator, and the production of heat and odours (Chouteau et al. 2007, García-Robledo et al. 2004, Gibernau & Barabé 2002, Gibernau et al. 1999, 2000, 2003; Maia & Schlindwein 2006, Young 1986).

Differential nectar production between male and female flowers in a wild cucurbit: Cucurbita maxima ssp. andreana (Cucurbitaceae)

2002 ◽  
Vol 80 (11) ◽  
pp. 1203-1208 ◽  
Author(s):  
Lorena Ashworth ◽  
Leonardo Galetto
Keyword(s):  
Reproductive Output ◽  
Male Flower ◽  
Female Flower ◽  
Cucurbita Maxima ◽  
Nectar Production ◽  
Male And Female ◽  
Nectar Sugar Composition ◽  
Nectar Sugar ◽  
Male Flowers ◽  
Female Flowers

In dioecious and monoecious plants that depend on animal vectors for reproduction, pollinators have to be attracted to male and female flowers for pollination to be effective. In the monoecious Cucurbita maxima ssp. andreana, male flowers are produced in greater quantity, are spatially more exposed to pollinators and offer pollen in addition to nectar as floral rewards. Nectar traits were compared between male and female flowers to determine any differences in the characteristics of the main reward offered to pollinators. Nectar chemical composition and sugar proportions were similar between flower types. Total nectar sugar production per female flower was threefold higher than per male flower, and nectar removal did not have any effect on total nectar production in both flower morphs. Pollinators reduced nectar standing crops to similar and very scarce amounts in both flower types. Results indicate indirectly that pollinators are consuming more nectar from female flowers, suggesting that the higher nectar production in female flowers may be a reward-based strategy to achieve the high female reproductive output observed in this species.Key words: Cucurbitaceae, Cucurbita maxima ssp. andreana, nectar production, nectar sugar composition, removal effects, standing crop.

Agricultural waste as a source of innovative and compostable composite biopolymers for food packaging: a scientific review

2021 ◽  
Author(s):  
Anna Ronzano ◽  
Roberta Stefanini ◽  
Giulia Borghesi ◽  
Giuseppe Vignali
Keyword(s):  
Food Packaging ◽  
Agricultural Land ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Natural Fibers ◽  
Scientific Review ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Regional Project ◽  
Materials Used

"The recovery of agriculture waste is one of the challenges of 2030 Agenda. Food and Agriculture Organization states that 30 % of the world’s agricultural land is used to produce food that is later lost or wasted, and the global carbon footprint corresponds to 7% of total greenhouse gases emissions. Alternatively, natural fibers contained in food and agricultural waste could be a valuable feedstock to reinforce composite biopolymers contributing to increase mechanical properties. In addition, the use of biopolymers matrix could contribute significantly to reduce the environmental footprint of the biobased compounds. Based on these premises, a regional project in Emilia-Romagna, aims to enhance agricultural waste to produce food packaging materials which in turn would contribute to the reduction of green raw materials used. This article reviews the state of art of composite biopolymers added with fillers extracted by food and agricultural waste, analyzing the literature published on scientific databases such as Scopus. The characteristics, advantages and drawbacks of each innovative sustainable material will be studied, trying to compare their various properties. The results of the work could guide companies in the choice of eco-sustainable packaging and lay the foundations for the development of the mentioned regional project."

scholarly journals The Effects of Silver Nitrate Applications on the Flower Quantity of Cucumbers (Cucumis sativus L.)

2011 ◽  
Vol 39 (1) ◽  
pp. 139 ◽  
Author(s):  
Deniz KARAKAYA ◽  
Hüseyin PADEM
Keyword(s):  
Silver Nitrate ◽  
Cucumis Sativus ◽  
Male Flower ◽  
Flower Formation ◽  
Cucumis Sativus L ◽  
Male Flowers ◽  
Female Flowers

This study was conducted to investigate the effects of silver nitrate (AgNO3) on the flower quantity of cucumbers. The seeds used in this study, which was carried out in a plastic greenhouse, in the Gazi village of Antalya Province (Turkey) the during spring and autumn 2005 breeding periods, were ‘Mostar F1’ (designated as ‘GND1’) and ‘Vesco Seeds Beith Alpha F1 (26.50 F1)’, designated as ‘GND2’ and those are the types having common production. The silver nitrate application was performed by the method of spraying on the growth tips of plants and 0, 250, 500, 750, and 1000 ppm silver nitrate doses were administered. The research was conducted with 4 repetitions having 5 plants in each repetition according to the Random Parcel Trial Pattern. In order to determine the effects of the applications, the effects of a number of female flowers and male flowers on generative characteristics of planting periods (spring and fall) were identified and the results were statistically evaluated. According to the results obtained in this research, AgNO3 has led to the formation of male flowers (no male flower formation in control), has increased the number of male flowers, and has led to a decrease in the number of female flowers. The increase in the number of male flowers varied according to the periods (in ‘GND2’).

Vitamins A, C, and E and beta-Carotene Content in Seeds of Seven Species of Vicia L.

2005 ◽  
Vol 47 (4) ◽  
pp. 487-493 ◽  
Author(s):  
Ahmet SAHIN ◽  
Yasar KIRAN ◽  
Fikret KARATAS ◽  
Senem SONMEZ
Keyword(s):  
Beta Carotene ◽  
Carotene Content

scholarly journals Investigation of the Structural Deformation Behaviour of the Subsoiler and Paraplow Tines by Means of Finitie Element Method

2017 ◽  
Vol 5 (12) ◽  
pp. 1482
Author(s):  
Kemal Cagatay Selvi
Keyword(s):  
Agricultural Land ◽  
Deformation Behaviour ◽  
Equivalent Stress ◽  
Three Dimensional ◽  
High Energy ◽  
Operating Conditions ◽  
Structural Deformation ◽  
Soil Tillage ◽  
Materials Used ◽  
Element Method

In this study, static stress-deformation analyzes (in terms of material strengths) were presented comparatively through a FEM-based simulation of the subsoiler and paraplow legs designed in a three-dimensional CAD environment. In general, both soil tillage implements with high energy requirements are being used to remove the soil compaction problem on agricultural land. The operating conditions of the implements were simulated using a FEM-based simulation program (Ansys-16). The results of static analysis obtained from the Finite Element Method (FEM) were evaluated on some different materials used in the shank design of both implements and the results were given comparatively. According to the analysis results, the maximum equivalent stress was in paraplow shank foot 122 MPa which is used C-60 material and the maximum vertical dis-placement is 0,00014 mm in the position of shank foot of subsoiler

scholarly journals Pollen load and distribution on the body of Elaeidobius kamerunicus Faust. (Coleoptera: Curculionidae) within oil palm plantations

2020 ◽  
Vol 17 (2) ◽  
pp. 81
Author(s):  
Van Basten Tambunan ◽  
Bandung Sahari ◽  
Damayanti Buchori ◽  
Purnama Hidayat
Keyword(s):  
Oil Palm ◽  
The Body ◽  
Body Parts ◽  
Pollen Load ◽  
Male And Female ◽  
Male Flowers ◽  
Pollen Distribution ◽  
Male To Female ◽  
Female Flowers ◽  
Elaeidobius Kamerunicus

<p>The African oil palm weevil,<strong> </strong><em>Elaeidobius kamerunicus</em> is an effective pollinator of oil palm. Each individual palm produces exclusively male or female inflorescence so that the success of pollination depends on the ability of the pollinator to transfer pollen from male to female flowers. The objective of this research was to study the amount of pollen carried by <em>E. kamerunicus</em> between male and female inflorescences (pollen load) and the amount of pollen carried on each part of the weevil’s body (pollen distribution). Fifty each of male and female  <em>E. kamerunicus</em> individuals were collected from male and female flowers on trees in 3 locations: Siantar (North Sumatra), Dramaga (West Java), and Morowali (Central Sulawesi). Data on pollen load and pollen distribution on the weevil’s body were analyzed using <em>ImageJ</em> software. Results show that <em>E. kamerunicus</em> individuals collected more pollen from male flowers than from female flowers. In addition, male insects carried more pollen on their bodies than female insects. Pollen distribution on weevil body parts was highest on the elytra, followed by the thorax, abdomen, legs, and head respectively.</p>

scholarly journals Changes in biologically active substances of stone fruits under the influence of low temperatures

2021 ◽  
Vol 34 ◽  
pp. 06017
Author(s):  
Irina Sobol ◽  
Ludmila Rodionova ◽  
Ludmila Donchenko ◽  
Artem Stepovoy
Keyword(s):  
Low Temperatures ◽  
Beta Carotene ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Carotene Content ◽  
Plum Varieties ◽  
Physical And Chemical ◽  
Active Substances ◽  
Acid Reduction ◽  
Pectin Substances

Sufficient consumption of natural biologically active substances (BAS) – vitamins, dietary fiber, mineral compounds – reduces the risk of developing diseases associated with negative external factors. A large number of BAS are contained in the cherry plum fruits. Cherry plum is characterized by storage short term, during which quality changes are possible. Studies have been conducted on the low temperatures effect the change of BAS in cherry plum fruits. Studied objects were five cherry plum varieties grown in the Russian southern regions – Dinnaya, Zhemchuzhina, Obilnaya, Puteshestvennitsa, Neberdzhayskaya ranyaya. It was found that during storage, the physical and chemical parameters change slightly, the dry substances content decreases (within 1.3-3.2 %), sugars (5.5-7.0 %), the total acids content increases (2.8 3.3 %). The BAS content slight decrease during storage does not significantly affect the nutritional value of cherry plum fruits. The ascorbic acid reduction is 9.8-17.3 %, the anthocyanins content decreases on average from 16.9 to 19.7 %, the beta-carotene content decreases by 8.7-14.8 %, the reduction level of pectin substances is 15.75-22.2 %. Thus, the freezing method application allows to preserve valuable BAS in cherry plum fruits and use them in the future as a basis for the production of functional food products.

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