scholarly journals Genetics of Promiscuous Nodulation in Soybean: Nodule Dry Weight and Leaf Color Score

2004 ◽  
Vol 95 (2) ◽  
pp. 154-157 ◽  
Author(s):  
E. T. Gwata
Keyword(s):  
Dry Weight ◽  
Leaf Color ◽  
Soybean Nodule ◽  
Color Score

Autumnal nutrient transfers by retranslocation, leaching, and litter fall in a chestnut oak forest in southern Illinois

1982 ◽  
Vol 12 (1) ◽  
pp. 40-51 ◽  
Author(s):  
Nancy L. Ostman ◽  
George T. Weaver
Keyword(s):  
Late Summer ◽  
Dry Weight ◽  
Litter Fall ◽  
Leaf Color ◽  
Southern Illinois ◽  
Foliar Concentrations ◽  
Important Means ◽  
Study Sites ◽  
Free Falling ◽  
Leaf Dry Weight

Retranslocation from leaves was investigated as a means of retaining nutrients in stands of Quercusprinus L. on two sites in southern Illinois, where wind rapidly moves litter downslope. Foliage samples were collected from late summer until leaf fall to describe the trends of leaf dry weight and nutrient concentration (N, K, P, Ca) changes. Free-falling rain and throughfall were collected to estimate foliar leaching. Foliar concentrations of N, K, and P decreased markedly during senescence while Ca concentrations increased. The pattern of concentration change was unique for each element, and the change in N concentration was closely correlated with change in leaf color. For the study sites as a whole, leaf dry weight decreased to 70% of the original value. Of 84.2 kg N/ha in green foliage, only 22.6% was returned to the site as litter. The canopy gained 0.3 kg N/ha (0.4%) from rainfall. The 78.5% N unaccounted for is attributed to retranslocation. Similarly, from 51.4 kg K/ha; 8.2, P; and 47.8, Ca in green foliage, 9.8, 1.3, and 3.3%, respectively, were removed by leaching; 27.4, 43.7, and 85.1% were returned to the site in litter. The remaining 63.0% K, 55.0% P, and 11.5% Ca unaccounted for is attributed to retranslocation. Retranslocation and leaching of nutrients was greater on the site of higher quality. But on both sites it appears that retranslocation is an important means of retaining and conserving N, K, and P countering the effect of annual litter removal.

scholarly journals PRODUCTIVITY Pueraria phaseoloides var. Javanica FERTILIZED WITH MANURE FROM CATTLE OFFERED CONCENTRATE CONTAINNING DIET SUPPLEMENTED WITH AMMONIUM SULFAT

Pastura ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 39
Author(s):  
Tjok. Istri Putri ◽  
Ni Putu Mariani
Keyword(s):  
Ammonium Sulfate ◽  
Weight Ratio ◽  
Dry Weight ◽  
Optimal Dosage ◽  
Pueraria Phaseoloides ◽  
Leaf Color ◽  
Randomized Design ◽  
Number Of Leaves ◽  
The Difference ◽  
Number Of Branches

This study aims to determine the optimal dosage of manure derived from cattle fed concentrated rations supplemented ammonium sulfate which can increase the productivity of Pueraria phaseoloidesvar .Javanica. The design used in this experiment was Completely Randomized Design (RAL) with 4 treatments and 5 replications. The four treatments were fertilized with doses of 10, 15, 20 and 25 tons / ha, respectively for the treatment of A, B, C and D, so overall there were 20 pot experiments. The study was conducted for 12 weeks. Observed variables were plant length, number of leaves, number of branches, dry weight (DW) of leaves, DW of stem DW, total BK, leaf color, leaf stem ratio (LSR) and leaf weight ratio”(LWR). The results showed that legumes treated A B, C and D produced high crop, leaf area, leaf color, LSR and LWR were not significantly different (P> 0.05). The treated legume C. resulted in a significantly higher leaf number than the treated legume A, B and D (P <0.05). The number of branches and DW leaves on legumes treated with C were significantly higher (P <0.05) than those receiving treatment A. and were not significantly different with legumes treated with B and D (P> 0.05). The DW of stem and total DW production from legume treated C were significantly higher with those treated with A and B (P <0.05) and the difference was not significant with those treated with D (P> 0.05). From the results of the study it can be concluded that legume treated with C or fertilized with manure derived from cattle fed concentrate containning diet supplemented ammonium sulfate at a dose of 20 tons / ha yield of leguminous productivity Peuraria phaseoloides var. javanica maximum. Keywords: manure, pueraria phaseoloides, productivity.

scholarly journals Analysis of Heat Tolerance in New Guinea Impatiens (Impatiens hawkeri) Utilizing Diallel Analysis

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 499B-499
Author(s):  
Kerry M. Strope ◽  
Mark S. Strefeler
Keyword(s):  
Heat Tolerance ◽  
Selection Index ◽  
Dry Weight ◽  
Leaf Color ◽  
Flower Bud ◽  
Branch Number ◽  
Node Number ◽  
Combining Abilities ◽  
Flower Diameter ◽  
Heat Tolerant

Four heat-tolerant (`Celebration Cherry Red', `Celebration Rose', `Lasting Impressions Shadow', and `Paradise Moorea') and three non-heat-tolerant (`Lasting Impressions Twilight', `Danziger Blues', and `Pure Beauty Prepona') cultivars were identified using a Weighted Base Selection Index. These cultivars were used as parents in a full diallel crossing block with reciprocals and selfs. Progeny from five parents (25 crosses) were evaluated for heat tolerance. Four floral (fl ower number, flower diameter, flower bud number, and floral dry weight) and five vegetative characteristics (visual rating, leaf size rating, vegetative dry weight, branch number, and node number) were evaluated with emphasis placed on continued flowering under long-term heat stress. In addition, progeny from all seven parents (49 crosses) were evaluated for inheritance of adaxial leaf color, abaxial leaf color, vein color, and flower color. Significant differences were found in each data category (P < 0.001) with the exception of node number, which was not significant. Flower number varied from 0 to 2, flower diameter varied from 0 to 41 mm, floral dry weight varied from 14 to 105 mg, bud number varied from 0 to 12, branch number varied from 5 to 15, and vegetative dry weight varied from 220 to 607 mg. General and specific combining abilities of the parents were evaluated as was heritability. It was found that the four heat-tolerant cultivars had higher general combining abilities. Heat tolerance has low heritability and is controlled by many genes.

scholarly journals Competitiveness of Bradyrhizobium japonicum inoculation strain for soybean nodule occupancy  

2022 ◽  
Author(s):  
Dragana Miljakovic ◽  
Jelena Marinković ◽  
Maja Ignjatov ◽  
Dragana Milosević ◽  
Zorica Nikolić ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Bradyrhizobium Japonicum ◽  
Dry Weight ◽  
Soil Conditions ◽  
Nodule Occupancy ◽  
Enterobacterial Repetitive Intergenic Consensus ◽  
Shoot Dry Weight ◽  
Soybean Nodule ◽  
Commercial Inoculant ◽  
Selection For

The competitiveness of Bradyrhizobium japonicum inoculation strain against indigenous rhizobia was examined in a soil pot experiment. The effect of inoculation strain was evaluated under different soil conditions: with or without previously grown soybean and applied commercial inoculant. Molecular identification of inoculation strain and investigated rhizobial isolates, obtained from nodules representing inoculated treatments, was performed based on 16S rDNA and enterobacterial repetitive intergenic consensus (ERIC) sequencing. Inoculation strain showed a significant effect on the investigated parameters in both soils. Higher nodule occupancy (45% vs. 18%), nodule number (111% vs. 5%), nodule dry weight (49% vs. 9%), shoot length (15% vs. 7%), root length (31% vs. 13%), shoot dry weight (34% vs. 11%), shoot nitrogen content (27% vs. 2%), and nodule nitrogen content (9% vs. 5%) was detected in soil without previously grown soybean and applied commercial inoculant. Soil had a significant effect on the shoot, root and nodule nitrogen content, while interaction of experimental factors significantly altered dry weight and nitrogen content of shoots, roots and nodules, as well as number of nodules. Nodulation parameters were significantly related with shoot dry weight, shoot and nodule nitrogen content. Symbiotic performance of inoculation strains in the field could be improved through co-selection for their competitiveness and effectiveness.  

scholarly journals Leaf Color Retention, Dark Respiration, and Growth of Red-leafed Japanese Maples Under High Night Temperatures

1990 ◽  
Vol 115 (1) ◽  
pp. 135-140 ◽  
Author(s):  
D.L. Deal ◽  
J.C. Raulston ◽  
L.E. Hinesley
Keyword(s):  
Plant Growth ◽  
Dark Respiration ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Leaf Color ◽  
Respiration Rates ◽  
Color Retention ◽  
Total Plant ◽  
Early Fall ◽  
Leaf Dry Weight

Red- and purple-leafed seedlings and clonal material selected for superior color and growth under northern climatic conditions may exhibit progressive color loss and reduced growth rates when exposed to the hot summers and high night temperatures of more southern climates. Studies were conducted to characterize the color loss associated with red-leafed seedlings of Acer palmatum Thunb. (Japanese maple), and to determine to what extent night temperatures affect the dark respiration, growth, and anthocyanin expression of A. palmatum `Bloodgood'. The percentage of seedlings within each of five color classes was determined for five dates from spring to early fall. Significant shifts in class distribution occurred on every evaluation date tested. The class changes contributing the most to these shifts varied with age of leaf material and date. Dark respiration rates increased by 0.09 mg CO2/g leaf dry weight per hour for every 1C rise in temperature, regardless of exposure duration. Dark respiration rates of 0.69 and 1.73 mg CO2/g per hour were found at 14 and 26C, respectively. The greatest amount of growth occurred during weeks 6 through 8 at a night temperature of 14C. Plant growth during this period increased by an average 51%, compared to that at warmer night temperatures. Ultimately, total plant growth at 14C decreased 7%, 19%, and 32% as night temperatures increased from 18 to 22 to 26C. Leaf redness index values at 14 or 18C were from two to seven times greater than those at warmer night temperatures.

scholarly journals 192 Growth Response of Salix nigra Marsh. to Fertilization, Humate Additive, and Mycorrhizae Inoculation in a CU Soil Container Study

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 424A-424
Author(s):  
Jason Grabosky ◽  
Nina Bassuk
Keyword(s):  
Root Zone ◽  
Dry Weight ◽  
Fractional Factorial ◽  
Fertilizer Treatment ◽  
Root Weight ◽  
Agricultural Field ◽  
Leaf Color ◽  
Salix Nigra ◽  
Tree Roots ◽  
The Impact

CU soil is a material primarily composed of clay loam soil and crushed stone designed for use under pavement to promote street tree root growth in a durable pavement section, such as sidewalks or parking lots. One concern is the low total soil fraction from which tree roots can meet nutritive demands. At issue is the long-term nutrient management of street trees once the root zone has been rendered inaccessible due to the pavement wearing surface, although in 3-year field tests, there were no differences found between a CU soil material and an agricultural field control. CU soil treatments were produced in a fractional factorial design with a patent applied for, processed humate additive, a nursery production fertilization treatment, and a mycorrhizae inoculation package of Pt and various VAM species. The mycorrhizae/fertilizer treatment was eliminated for plant availability restrictions. Bare-root seedlings of Salix nigra Marsh. were grown in treatment containers for 5 months. A Minolta SPAD-502 was used to evaluate relative chlorophyll content as an indication of leaf tissue nutrient levels. Plant growth as a function of root dry weight, shoot dry weight, and shoot: root ratio was analyzed. Soil analyses were conducted on media samples collected at the end of the study to evaluate the impact of humate admixes in nutrient availability. The fertilization treatments positively influenced leaf color, shoot weight, root weight, and shoot: root ratio. There was no impact from the mycorrhizae inoculation on leaf color or growth. There was no impact from the humate additive on leaf color or growth. There were no additive effects found in the treatment levels.

scholarly journals Year-round Production of Flowering Calathea crocata: Influence of Light and Carbon Dioxide

HortScience ◽  
1993 ◽  
Vol 28 (9) ◽  
pp. 897-898 ◽  
Author(s):  
Johan M. Van Huylenbroeck ◽  
Pierre C. Debergh
Keyword(s):  
Carbon Dioxide ◽  
Day Treatment ◽  
Dry Weight ◽  
Photosynthetic Photon Flux Density ◽  
Photon Flux ◽  
Photon Flux Density ◽  
Leaf Color ◽  
Photosynthetic Photon Flux ◽  
Natural Conditions ◽  
Inductive Treatment

Programmed flower induction of Calathea crocata Morr. et Joris is possible under the controlled environmental conditions of a multilayer growing room. A photoperiod of 10 hours for 9 weeks, growth at 18C, and a photosynthetic photon flux density (PPFD) of 71 μmol·s-l·m-2 induced flowering in more than 95% of the plants and in 50% to 80% of the shoots. In the meantime, none of the plants under natural conditions was induced. Significantly more flowers were induced when PPFD during the short-day treatment was 71 rather than 56 μmol·s-1·m-2. Flowers became visible 14 to 16 weeks after the start of the inductive treatment. Moreover, raising the CO2 concentration to 900 ppm for 5 months increased the leaf area and dry weight by 40%, and resulted in darker leaf color, longer flower stalks, and significantly accelerated flowering (10 days).

scholarly journals Respon pertumbuhan vegetatif padi varietas IPB 4S pada kondisi cekaman kekeringan

Agromix ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 218-226
Author(s):  
Nasrudin Nasrudin ◽  
Efrin Firmansyah
Keyword(s):  
Drought Stress ◽  
Leaf Area ◽  
Root Length ◽  
Growth Parameters ◽  
Field Capacity ◽  
Dry Weight ◽  
Leaf Color ◽  
Rice Varieties ◽  
Root Dry Weight ◽  
Randomized Design

Drought stress affected growth and decreases rice yield. The use of high yielding varieties and drought tolerance is a strategic step that can be applied during drought stress. The aim of this research was to examine the response of the growth of IPB 4S rice varieties on planting media with drought stress during vegetative phase. The research used a nonfactorial Completely Randomized Design with six levels: field capacity, 10% of field capacity, 20% of field capacity, 30% of field capacity, 40% of field capacity, and 50% of field capacity. The treatments were repeated three times. The growth parameters were plant high, number of tiller, leaf color, leaf area, root length, root dry weight, canopy dry weight, and biomass. The results showed that the drought stress significantly different to leaf area, root length, canopy dry weight, and biomass but were not significantly different to plant height, number of tiller, leaf color, dan root dry weight. Increased of drought stress 30 to 50% of field capacity decreased of leaf area, canopy dry weight, and biomass, but increased root length.

scholarly journals Nutritional Value of Crisphead ‘Iceberg’ and Romaine Lettuces (Lactuca sativa L.)

2016 ◽  
Vol 8 (11) ◽  
pp. 1 ◽  
Author(s):  
Moo Jung Kim ◽  
Youyoun Moon ◽  
Dean A. Kopsell ◽  
Suejin Park ◽  
Janet C. Tou ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lactuca Sativa ◽  
Nutritional Value ◽  
Dry Weight ◽  
Leaf Color ◽  
Total Carotenoids ◽  
Green Leaves ◽  
Total Anthocyanins ◽  
Health Promoting ◽  
Growing Conditions

<p>Lettuce (<em>Lactuca sativa</em> L.) is one of the most popular vegetables worldwide, but is often viewed as low in nutritional value. However, lettuce contains health-promoting nutrients and biosynthesis of such phytochemicals varies depending on cultivar, leaf color and growing conditions. Studies of such parameters on the nutritional value have not been conclusive because the lettuce samples were collected from heterogeneous growing conditions and/or various developmental stages. In our study nutritional composition was evaluated in the two most popular lettuce types in Western diets, romaine and crisphead ‘Iceberg’, with red or green leaves grown under uniform cultivating conditions and harvested at the same developmental stage. In the investigated lettuce cultivars, insoluble fiber content was higher (<em>P </em>≤ 0.05) in romaine than crisphead lettuces. Alpha-linolenic acid (omega-3 polyunsaturated fatty acid) was the predominant fatty acid and was higher in romaine than crisphead. Iron and bone health-promoting minerals (Ca, Mg and Mn) were significantly higher (<em>P</em> ≤ 0.001) in romaine. The content of Beta-carotene and lutein in romaine (668.3 ug g<sup>-1</sup> dry weight) was ~45% higher than in crisphead (457.3 ug g<sup>-1</sup>dry weight). For leaf color comparison, red cultivars provided higher amount of minerals (Ca, P, Mn and K), total carotenoids, total anthocyanins and phenolics than green cultivars. Based on our study results, romaine was generally higher in nutrients analyzed, especially red romaine contained significantly higher amount of total carotenoids, total anthocyanins and phenolics. Therefore, romaine type lettuces with red rather than green leaves may offer a better nutritional choice.</p>

scholarly journals Karakterisasi Plasma Nutfah Ubi Jalar Berdaging Umbi Predominan Ungu

2016 ◽  
Vol 16 (2) ◽  
pp. 85
Author(s):  
Widiati H. Adil
Keyword(s):  
Vitamin A ◽  
Sweet Potato ◽  
Dry Weight ◽  
Health Data ◽  
Anthocyanin Content ◽  
Leaf Color ◽  
Nutrition Value ◽  
Color Purple ◽  
Tuber Root

<p>Characterization of Sweet Potato with Purple Flash Predominant Color. Sweet potato is a source of energy which is available in the form of sugar and carbohydrate. It is also sources of various vitamins and minerals which are essential for human health, such as calcium, ferro, vitamin A and C. Effort have to be made to diverse the use of sweet potato as fungsional food focus on size and its nutrition value, especially the use of anthocyanin for health. Data of characteristic of dry weight, shape, and flesh of sweet potato predominant color, leaf color and shape were collected from sweet potato planted in Cibadak and from the catalog of food crops genetic resources. Ten accessions which have predominant color number 9 (strongly pigmented with anthocyanin) or secondary color purple were selected for anthocyanin measurement using spectrometer. There was no correlation between dry weight and tuber root shape and anthocyanin content. On the other hand, predomint color of flesh tuber root had correlation with anthocyanin content, the darker the purple color the higher anthocyanin content, ranged from 508.45 to 645.37 ppm.</p><p> </p><p><strong>Abstrak</strong></p><p>Ubi jalar merupakan bahan pangan sumber energi dalam bentuk gula dan karbohidrat. Umbi ini mengandung vitamin dan mineral yang dibutuhkan oleh tubuh, seperti kalsium, zat besi, vitamin A maupun C. Upaya penganekaragaman pemanfaatan ubi jalar sebagai pangan fungsional perlu mempertimbangkan hubungan antara ukuran umbi dengan kadar nutrisi, khususnya pemanfaatan kandungan antosianin bagi kesehatan. Data karakteristik bobot bahan kering dan bentuk umbi plasma nutfah ubi jalar diperoleh dari katalog plasma nutfah tanaman pangan dan dari pertanaman koleksi ubi jalar di Cibadak. Sebanyak 10 aksesi ubi jalar berdaging umbi warna predominan ungu atau warna sekunder daging umbi ungu dipilih untuk dianalisis kadar antosianinnya dengan menggunakan spektrometer. Penelitian ini bertujuan mengevaluasi karateristik beberapa plasma nutfah ubi jalar berdaging umbi warna ungu koleksi Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian. Tidak terdapat korelasi antara bobot kering dengan bentuk umbi dan besarnya kandungan antosianin. Semakin pekat warna ungu daging umbi semakin tinggi kadar antosianinnya. Beberapa aksesi lokal mempunyai kandungan antosianin yang tinggi, yaitu antara 508,45-645,37 ppm.</p>

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