scholarly journals Influence of the rootstock variety on the vegetative and uvological measures of grapes

2020 ◽  
Vol 210 ◽  
pp. 05011
Author(s):  
Natalia Pavlyuchenko ◽  
Natalia Zimina ◽  
Svetlana Melnikova ◽  
Olga Kolesnikova
Keyword(s):  
Leaf Area ◽  
Growth Characteristics ◽  
Field Observations ◽  
Grape Variety ◽  
Reproductive Characteristic ◽  
Total Sugars ◽  
Positive Effects ◽  
Leaf Area Duration ◽  
On Farm ◽  
Plant Growth Characteristics

The goal of research – signification of influence of the genotype of rootstock varieties on the vegetative and reproductive characteristic of the Purple early (Fioletoviy ranniy) grafted grape variety during adaptation in the field. Observations of research was made with using rootstock varieties - PP 101-14, Kober 5BB, Vierul-3. The influence of the rootstock genotype was introduced on the basis of by the survival rate of bushes, plant growth characteristics of the Purple early (Fioletoviy ranniy) variety, and uvological properties. The least death of bushes was found by usage the rootstock Vierul -3. Was revealed influence of the rootstock genotype on the vegetative measures of the grafted variety. The genotype of the Vierul - 3 rootstock variety was materially affected the leaf-area and leaf-area duration of the bush. Was found that influence of rootstock on the reproductive properties of graft - rootstock combinations. Grafting on the rootstock Cober 5BB foster the increase slightly of yield per Bush. Uvology indicators point at a positive effects of rootstock Vierul-3 on the weight of cluster and berries, the size of cluster and berries, the structure and form of the cluster and total sugars. On-farm research of agrocenosis, is advisable to graft the rootstock Vierul-3 for Fioletoviy ranniy variety.

Effects of Plant Density and Thinning on High-Yielding Dry Beans (Phaseolus vulgaris) in Mexíco

1977 ◽  
Vol 13 (4) ◽  
pp. 325-335 ◽  
Author(s):  
Aguilar M. Immer ◽  
R. A. Fischer ◽  
Joshue Kohashi S.
Keyword(s):  
Phaseolus Vulgaris ◽  
Leaf Area ◽  
Seed Weight ◽  
Plant Density ◽  
Plant Competition ◽  
Growth And Yield ◽  
Positive Relation ◽  
Dry Beans ◽  
Leaf Area Duration ◽  
Pod Number

SUMMARYThe influence of leaf area and inter-plant competition on the growth and yield of a crop of high-yielding dry beans (Phaseolus vulgaris L.) in central Mexico was studied, using density and thinning treatments. The highest seed yield (4210 kg/ha at 14% moisture) was obtained with the highest density (28·8 plants/m2). Thinning showed that pods/plant was sensitive to inter-plant competition between 36 and 78 days after seeding (first flower at 50 days), but seeds/pod, and especially seed weight, were not sensitive. It is suggested that the close positive relation between yield and leaf area duration derives from the influence of photosynthate supply upon pod number.

scholarly journals Heritability of peach tree resistance to bacterial leaf spot

2017 ◽  
Vol 52 (5) ◽  
pp. 366-369 ◽  
Author(s):  
André Luiz Varago ◽  
Idemir Citadin ◽  
Marcos Robson Sachet ◽  
Gener Augusto Penso ◽  
Maria do Carmo Bassols Raseira
Keyword(s):  
Leaf Area ◽  
Disease Severity ◽  
Leaf Spot ◽  
Field Conditions ◽  
Broad Sense Heritability ◽  
Peach Tree ◽  
Bacterial Leaf Spot ◽  
Tree Resistance ◽  
Leaf Area Duration ◽  
Xanthomonas Arboricola

Abstract: The objective of this work was to evaluate the broad-sense heritability reaction to bacterial leaf spot (Xanthomonas arboricola pv. pruni), in peach tree populations obtained from directed crosses. Disease severity and defoliation of the genotypes were evaluated in field conditions, with posterior measurement of the healthy leaf area duration (HAD). The observed average heritability (0.51) indicates that the use of the evaluated genitors can be effective for the development of cultivars with higher resistance to the disease.

scholarly journals Assessment of Growth Characteristics of Medicinal Plants Ocimum tenuiflorum L. and Plectranthus amboinicus (Lour.) Spreng. Under Shade Net and Open Conditions

2020 ◽  
pp. 1-8
Author(s):  
J. Ambujavalli ◽  
K. Santhiya ◽  
K. Rohini ◽  
V. Kumaresan
Keyword(s):  
Medicinal Plants ◽  
Leaf Area ◽  
Plant Height ◽  
Growth Characteristics ◽  
Similar Type ◽  
Potted Plants ◽  
Ocimum Tenuiflorum ◽  
Number Of Leaves ◽  
Plectranthus Amboinicus ◽  
Microclimate Conditions

Aim: To study the effect of shade net on the growth characteristics of two medicinal plants viz., Tulsi and Indian Borage in terms of plant height, number of leaves, leaf area and flowering in relation to open condition. Place and Duration of Study: Lawspet, Puducherry, India between June 2018 and October 2018. Methodology: Tulsi and Indian Borage plants were grown in similar type of soil. The potted plants were kept in open, 35% and 75% shade net conditions and studied for 3 months. The plant height, number of leaves, and leaf area were measured including number of inflorescence branches for Tulsi. Results: The average air temperature was lower under shade net. Relative humidity was more in shade net conditions with maximum in 75% shade and least in open conditions. The number of leaves of Tulsi and Indian Borage recorded was maximum when grown under 35% shade and least in open conditions. Plant height was maximum in 75% shade for Tulsi and 35% shade in Indian Borage and least in open conditions on both the cases. Leaf area was maximum for both Tulsi and Indian Borage in 75% shade. Conclusion: Growth of the two medicinal plants was influenced by the microclimate conditions. The present study shows that the medicinal plants can be grown in shade net conditions to increase the yield of medicinally useful parts.

scholarly journals Polyploidy in tissues of plants in vitro of grape somaclones

2021 ◽  
Vol 34 ◽  
pp. 03002
Author(s):  
Viktor Klimenko ◽  
Ekaterina Lushchay ◽  
Valeryi Zlenko
Keyword(s):  
Leaf Area ◽  
Cytogenetic Analysis ◽  
Colchicine Treatment ◽  
Reverse Correlation ◽  
Grape Variety ◽  
Meristematic Tissue ◽  
Clonal Micropropagation

In vitro experimental plants obtained by clonal micropropagation of 9 grape somaclones of 5 original forms were the material for cytogenetic research. A biological microscope XSP-146TP was used for cytogenetic analysis. 823 cases of deviation from diploidy were observed in total. Significant tissue ploidy was observed in the meristematic tissue of in vitro plants of grape somaclones obtained by colchicine treatment of proembryogenic cells of various varieties. The significant direct correlation was found between the frequency of polyploidy in meristem tissues of in vitro plants and the number of chloroplasts in the stomata of grape somaclones. The reverse correlation was found between the frequency of polyploidy and the number of stomata on the leaf area. Somaclone No. 72, obtained as a result of regeneration from colchicinated proembryogenic cells of the Ruta grape variety and identified as a tetraploid (2n = 4x = 76), is recommended for use in the polyploid creation program.

scholarly journals Effects of Enriched Charcoal as Permanent 0.2% Feed-Additive in Standard and Low-Protein Diets of Male Fattening Turkeys: An On-Farm Study

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 541
Author(s):  
Hinz ◽  
Stracke ◽  
Schättler ◽  
Kemper ◽  
Spindler
Keyword(s):  
Animal Health ◽  
Matter Content ◽  
Feed Additive ◽  
Standard Diet ◽  
Dry Matter Content ◽  
Positive Effects ◽  
Low Protein ◽  
Protein Reduction ◽  
On Farm ◽  
Experimental Group

Wet litter is the most important cause of footpad dermatitis in poultry, this in turn being a highly relevant animal-related welfare indicator. This field study was subdivided into two experiments. In Experiment 1, the standard diet was supplemented by 0.2% enriched charcoal, being a non-specific absorber and therefore might be promising in reducing faecal moisture. In Experiment 2, the experimental group received a reduced crude protein diet during weeks 6–13, combined with a 0.2% enriched charcoal supplementation. The trials were each conducted with two batches on three farms under on-farm conditions. The animals were observed at 6, 10, 14 and 18 weeks of age to collect data on body weight and different health parameters. The mortality and litter samples were analysed after slaughtering. In Experiment 1, performance and health were not affected despite higher dry matter content of the litter. In Experiment 2, the weight of birds receiving the protein-reduced diet was decreased significantly throughout the experiment. However, the slaughter weight did not differ. The mortality was reduced by 0.5% in the experimental group. Therefore, it was concluded that 0.2% of enriched charcoal is not a valuable feed-additive regarding animal health, while temporary protein reduction might have positive effects.

Foliage development and leaf area duration in Pinus radiata

2013 ◽  
Vol 304 ◽  
pp. 455-463 ◽  
Author(s):  
Rafael A. Rubilar ◽  
Timothy J. Albaugh ◽  
H. Lee Allen ◽  
Jose Alvarez ◽  
Thomas R. Fox ◽  
...  
Keyword(s):  
Leaf Area ◽  
Pinus Radiata ◽  
Leaf Area Duration ◽  
Foliage Development

scholarly journals The Response of Maize Lines to Foliar Fertilizing

Agriculture ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 365
Author(s):  
Milan Brankov ◽  
Milena Simić ◽  
Željko Dolijanović ◽  
Miloš Rajković ◽  
Violeta Mandić ◽  
...  
Keyword(s):  
Amino Acids ◽  
Grain Yield ◽  
Leaf Area ◽  
Harvest Index ◽  
Growth Parameters ◽  
Growth Stages ◽  
Fresh Matter ◽  
Area Index ◽  
Positive Effects ◽  
The Impact

The objective of this study was to evaluate the impact of two foliar fertilizers applied on five maize (Zea mays L.) lines. Fertilizers were applied at different growth stages of maize, during three consecutive years (2010–2012) at the experimental field of the Maize Research Institute “Zemun Polje”, Serbia. Maize growth parameters such as fresh matter, height, leaf area and grain yield were recorded. Foliar fertilizer with amino acids (FAA) was more advantageous to maize plants compared to fertilizer containing phosphorus (FP) as a main component. Applied FAA has shown positive effects by increasing fresh matter, leaf area index, and plant height in all three years. In 2012, due to unfavorable meteorological conditions, grain yield and harvest index were very low, compared to the previous two years, although, positive effects on morphological traits were observed 21 days after treatments (DAT), as well as in the anthesis stage. The best results of 30% of grain yield and harvest index increase were recorded in line L1 in 2010 and 2011. The same line had an increase of more than 40% of fresh matter and leaf area on average for all three years. The positive effects that have been noticed in this research could recommend foliar fertilizing with fertilizer containing N in a form of an amino acids complex.

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