Granular systemic insecticides for control of green peach aphid (Myzus persicae)and their effect on yield and quality of tobacco grown in riverside lankas

1982 ◽  
Vol 28 (4) ◽  
pp. 381-384 ◽  
Author(s):  
J. A. V. Prasadarao ◽  
A. Hanumantharao ◽  
D. Subbarao ◽  
G. Ramaprasad
Keyword(s):  
Myzus Persicae ◽  
Green Peach Aphid ◽  
Systemic Insecticides ◽  
Yield And Quality ◽  
Effect On Yield

Development of Organically Complexed-Bioaugmented Boron-Coated DAP and Its Effect on Yield and Quality of Canola (Brassica napus L.)

2021 ◽  
Author(s):  
Tayyaba Samreen ◽  
Muhammad Imran ◽  
Zahir Ahmad Zahir ◽  
Muhammad Zulqernain Nazir ◽  
Saima Noureen ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Brassica Napus L ◽  
Yield And Quality ◽  
Effect On Yield

scholarly journals DETERMINATION OF HERBAGE YIELD AND QUALITY OF DIFFERENT SOYBEAN VARIETIES

2021 ◽  
Vol 10 (20) ◽  
pp. 13-18
Author(s):  
Yasin Akinci ◽  
Mahmut Kaplan
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Soybean Cultivars ◽  
Dry Matter Digestibility ◽  
Yield And Quality ◽  
Herbage Yield ◽  
Effect On Yield

Objectives of the present study are to determine the variations in forage yield and quality of soybean cultivars. Experiments were conducted in randomized complete blocks design with 3 replications during the growing season of 2016. A total of 10 cultivars were used as the plant material of the experiments (Bravo, A3127, Traksoy, İlksoy, Mersoy, Nova, SA-88, Arısoy, Safir, Atakişi). Cultivars had a significant effect on yield and chemical composition. Results revealed that green herbage yields varied between 826.39 - 1199.17 kg/da, dry hay yields between 247.71 - 357.90 kg/da, crude protein yields between 16.91 - 39.86 kg/da, acid detergent fiber (ADF) ratios between 26.56 - 34.61%, neutral detergent fiber (NDF) ratios between 38.43 - 44.85%, crude ash contents between 7.20 - 11.22%, crude protein contents between 6.66 - 13.53%, dry matter digestibility (DDM) values between 61.94 - 68.21%, dry matter intake (DMI) values between 2.68 - 3.12% and relative feed values (RFV) between 2.68 - 3.12. The results of the study showed that A3127 cultivar was found to be prominent with green herbage yield (1199.17 kg/da) and dry hay yield (357.90 kg/da) and Safir cultivar was found to be prominent with crude protein yield (39.86 kg/da). It was concluded that the soybean cultivars A3127 and Safir could be recommended for hay production.

Trials of Spraying and Cultural Practices on Cotton in Uganda. II. Use of Extended Protection

1976 ◽  
Vol 12 (2) ◽  
pp. 163-176
Author(s):  
J. C. Davies
Keyword(s):  
Cultural Practices ◽  
Heliothis Armigera ◽  
Seed Cotton ◽  
Yield And Quality ◽  
Significant Yield ◽  
Consequent Effect ◽  
Effect On Yield ◽  
Spray Treatment

SUMMARYTrials are described comparing the effects of applying four, eight and 12 sprays of various insecticides on control of Heliothis armigera Hub, and Earias biplaga Wlk., and the consequent effect on yield and quality of seed cotton produced. Yields of unsprayed cotton ranged from 300–900 kg/ha, while four sprays of DDT gave 1000–1200 kg/ha. Increasing the number of sprays to 12, using three insecticides (DDT, endosulfan and carbaryl) gave increments of 300–600 kg/ha over the standard four spray treatment. Eight sprays gave smaller but significant yield increases, and endosulfan, dicrotophos and carbaryl were particularly promising in such regimes. A mixed DDT/phenthoate spray was not superior to DDT used alone. Spraying reduced the percentage of stained cotton.

IRRIGATION, SPACING AND NITROGEN EFFECTS ON YIELD AND QUALITY OF PICKLING CUCUMBERS GROWN FOR MECHANICAL HARVESTING

1980 ◽  
Vol 60 (3) ◽  
pp. 923-928 ◽  
Author(s):  
JOHN O’SULLIVAN
Keyword(s):  
Fruit Quality ◽  
Plant Density ◽  
Plant Population ◽  
Limiting Factor ◽  
Plant Populations ◽  
Yield And Quality ◽  
High Plant Density ◽  
Pickling Cucumbers ◽  
Effect On Yield

The effects of plant spacing and irrigation at two rates of N in 1977 and 1978 and one rate of N in 1979 on yield and quality of pickling cucumbers (Cucumis sativus L.) harvested once-over was investigated. Plant populations significantly affected yield, with highest yields produced at the highest population of 64 plants/m2 each year. Irrigation and N rate had no significant effect on yield. Lack of soil moisture was not a limiting factor on yield during the critical growth stage of early fruit set in any year. Plant population also significantly affected fruit quality. In general, fruit quality decreased as plant population increased. Irrigation affected fruit quality only in 1977 while N rate affected quality in 1977 and 1978. Fruit color was affected by irrigation and N, but not by plant populations. Planting arrangement had no significant effect on yield or quality. Tissue N decreased with increasing population and irrigation in 1977 and indicated an increased demand for N when cucumbers are produced with irrigation at high plant density.

EFFECT OF PASMO DISEASE OF FLAX ON THE YIELD AND QUALITY OF LINSEED OIL

1951 ◽  
Vol 29 (4) ◽  
pp. 339-351 ◽  
Author(s):  
W. E. Sackston ◽  
R. B. Carson
Keyword(s):  
Iodine Number ◽  
Oil Content ◽  
Linseed Oil ◽  
Rust Infection ◽  
Yield And Quality ◽  
Effect On Yield

Heavy infections of pasmo significantly reduced the oil content of flaxseed and the iodine number of the oil. The effects of pasmo infection on oil content and iodine number of the oil were similar to those caused by a hot, dry climate. Oil content was affected similarly by pasmo infection and by flax rust infection, but the two diseases had dissimilar effects on iodine number of the oil. Greatest reductions in oil content and iodine number resulted from pasmo inoculations made when the flax plants were flowering. Inoculations made when the seed was ripening had little or no effect on yield and quality of linseed oil.

scholarly journals Suplementação de boro em diferentes épocas: Efeito no rendimento e na qualidade de sementes de trigo

2016 ◽  
Vol 11 (2) ◽  
pp. 05
Author(s):  
Andre Pich Brunes ◽  
Elisa Souza Lemes ◽  
André Oliveira de Mendonça ◽  
Sandro de Oliveira ◽  
Francisco Amaral Villela
Keyword(s):  
Application Time ◽  
Germination Test ◽  
Plant Seed ◽  
Factor B ◽  
Yield And Quality ◽  
Physiological Quality ◽  
Effect On Yield ◽  
Thousand Seed Weight ◽  
Number Of Seeds

<p>O objetivo do trabalho foi avaliar a influência da aplicação de boro em diferentes épocas no rendimento e na qualidade de sementes de trigo. O delineamento experimental utilizado foi inteiramente casualizado em esquema fatorial A X B, sendo o fator A: cultivares FUNDACEP Horizonte e BRS Campeiro, e fator B: época de aplicação, (Sem aplicação de boro, aplicação na semeadura, no perfilhamento, na floração e 15 dias após floração). A dose de boro aplicada, via solo, em todas as épocas foi de 10 kg ha<sup>-1</sup> na forma de tetraborato de sódio (boráx). Após a colheita, avaliaram-se número de espigas, número de sementes por planta, rendimento de sementes por planta, peso hectolítrico e peso de mil sementes. A qualidade fisiológica das sementes produzidas foi avaliada por testes de vigor e de germinação. A adubação de trigo com 10 kg ha<sup>-1 </sup>de boro na forma de bórax nas diferentes épocas de aplicação, não prejudica rendimento, germinação e vigor das sementes das cultivares de trigo FUNDACEP Horizonte e BRS Campeiro. O peso volumétrico das sementes só teve redução na aplicação no perfilhamento para a cultivar FUNDACEP Horizonte e na floração para a cultivar BRS Campeiro.</p><p align="center"><strong><em>Boron supplementation at different times: Effect on yield and quality of wheat seeds</em></strong></p><p><strong>Abstract:</strong> The aim of this study was to evaluate the effect of boron application at different times on the yield and seeds quality of wheat. The experimental design was a completely randomized factorial AXB, with factor A: FUNDACEP Horizonte and BRS Campeiro cultivars, and factor B: application time, (No application of boron, application at sowing, tillering, flowering and 15 days after flowering). The boron dose into the soil at all times was 10 kg ha-1 in the form of sodium tetraborate (borax). After harvest, were evaluated number of ears, number of seeds per plant, seed yield per plant, hectoliter weight and thousand seed weight. The physiological quality of seeds produced was assessed through the vigor tests and germination test. Fertilizing wheat with 10 kg ha-1 of boron as borax at different times of application, without prejudice yield, germination and vigor of wheat FUNDACEP Horizonte and BRS Campeiro cultivars. The hectolitre weight of the seeds was reduced only in the application at tillering to FUNDACEP Horizonte cultivar and flowering for BRS Campeiro cultivar.</p><p><strong> </strong></p>

Changes in goat milk composition during lactation and their effect on yield and quality of hard and semi-hard cheeses

2005 ◽  
Vol 59 (1) ◽  
pp. 55-63 ◽  
Author(s):  
B. Fekadu ◽  
K. Soryal ◽  
S. Zeng ◽  
D. Van Hekken ◽  
B. Bah ◽  
...  
Keyword(s):  
Goat Milk ◽  
Milk Composition ◽  
Yield And Quality ◽  
Effect On Yield

scholarly journals Lowering Nitrogen and Increasing Potassium Application Level Can Improve the Yield and Quality of Panax notoginseng

2020 ◽  
Vol 11 ◽  
Author(s):  
Xiaohong Ou ◽  
Xiuming Cui ◽  
Duanwei Zhu ◽  
Lanping Guo ◽  
Dahui Liu ◽  
...  
Keyword(s):  
Field Experiments ◽  
Synergistic Effects ◽  
Panax Notoginseng ◽  
Sugar Accumulation ◽  
K Value ◽  
Combined Application ◽  
Saponin Biosynthesis ◽  
Yield And Quality ◽  
Effect On Yield

Excessive nitrogen (N) application and potassium (K) supplement deficiency is a common problem in Panax notoginseng cultivation. However, synergistic effects of lowering N and increasing K application on yield and quality of P. notoginseng have not been reported. Field experiments in two locations with different N and K combined application were conducted to study the effects on yield and quality. Then, the saponin accumulation mechanisms were explored by pot and hydroponic culture with 2- or 3-year-old seedlings. The investigation showed that 70% of P. notoginseng cultivation fields reached abundant levels of total nitrogen (TN) but had deficient levels of total potassium (TK), which may be detrimental to balance the N/K uptake of P. notoginseng. Moreover, the average biomass was 18.9 g, and P. notoginseng saponin (PNS) content was 6.95%; both were influenced by the N/K values of P. notoginseng. The field experiments indicated that compared to the conventional N and K application (N:K = 2:1), lowering N and increasing K application (N:K = 1:2) decreased root rot rate by 36.4–46.1% and increased survival rate, root biomass, and yield, as well as PNS content by 17.9–18.3, 5.7–32.9, 27.8–57.1, and 5–10%, respectively. The mechanism of lowering N and increasing K application on the PNS content improving was due to the decreasing of N/K value, which promoted photosynthesis, sugar accumulation, and the expression of saponin biosynthesis genes. Therefore, lowering N and increasing K application to the ratio of 1:2 would have great potential to improve the synergistic effect on yield and quality of P. notoginseng cultivation.

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