Effect of Different Harvesting and Threshing Methods on  Seed Quality of Rice Varieties

Govindaraj, M; Masilamani, P.; Asokan, D.; Rajkumar, P.; Selvaraju, P.

doi:10.20546/ijcmas.2017.608.281

Cited by 17 publications

(9 citation statements)

References 5 publications

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“…According to different mounting positions of threshing components, there are three primary threshing technologies including cross, longitudinal and vertical harvester respectively [83] . When threshing components are installed perpendicularly to straw flow, it is called cross-direction harvester.…”

Section: Primary Threshing Technologymentioning

confidence: 99%

Review of grain threshing theory and technology

Chen

Han

et al. 2018

International Journal of Agricultural and Biological Engineering

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Threshing is the most important function of grain harvester. Grain loss and damage in harvesting are significantly related to threshing theory and technology. There are four kinds of threshing principles including impact, rubbing, combing and grinding. Four types of contact models between grain and threshing components have been constructed correspondently. Grain damage can be regarded as a function of peripheral velocity and contact pattern of impacting. Grain loss can be regarded as a function of contact pattern of rasp bars. Grain loss coming from cleaning and separation in the subsequent process of combing threshing was significantly decreased. Tangential and axial threshing technologies have been applied in grain threshing system widely. It showed that in the combined application, tangential rolls are used to accelerate grain flow, and axial rolls are used to increase threshing quality especially lower loss and damage. Conical concave may take the place of the traditional cylindrical one. With the development of sensor technology and communication technology, intelligent harvesting robot and automatic threshing system will be integrated together to improve grain quality and operation comfort.

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Section: Primary Threshing Technologymentioning

confidence: 99%

Review of grain threshing theory and technology

Chen

Han

et al. 2018

International Journal of Agricultural and Biological Engineering

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“…The germination process causes the hydrolyzed nutritional components to become simpler compounds so that they are easily digested and reduces phytic acid which is an anti-nutrient compound in legumes. Seed germination also increases the vitamin contents, especially vitamin E and a-tocopherol which function as antioxidants [17]. The handling of soybeans occurs in pregermination process wherein the soybeans have high protein and amino acid contents because the pregermination process can improve their nutritional quality without sprouting, which can reduce sensory acceptance.…”

Section: Discussionmentioning

confidence: 99%

Cookies Prepared using Peanuts, Pregerminated Soybean, and Moringa Leaf Flour Improve Food Intake and Nutritional Status in Malnourished Patients

Widodo¹,

Budiningsari²,

Susetyowati³

2019

JFNR

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Meals provided to patients in hospitals is an essential part of their treatment. The meals of malnourished patients have been observed to be devoid of basic nutrients that support patient recuperation. This study examined the effect of consumption of a energy-rich and high-protein cookie, called Pronisi, prepared using peanuts, pregerminated soybean, and Moringa leaf flour, on patients' food acceptance, food intake, and nutritional status. This was a quasi-experiment study with pretest-posttest with a control group design conducted. The subjects were malnourished-at-risk adult inpatients, divided into intervention group and the control group. The Independent T-test analyses were used to analyze the differences between two groups. Patients' acceptance of Pronisi is significantly higher in comparison to green bean porridge (p < 0.001). Energy and protein intake from in-between meals in the intervention group was significantly higher (100.68±9.79 kcal; 35.41 ± 0.71 g, respectively) compared to the control group (3.75±0.21 kcal; 2.83±0.22, respectively). There was significantly high reduction in body muscle mass percentage in the control group in comparison to the intervention group (-0.51;-0.43, respectively, p< 0.001). There was a significant difference in SNST (Simple Nutrition Screening Tool) scores in the intervention group in comparison to the control group (0.68 ; 0.63, respectively; p<0.001). Food acceptance, nutritional intake, and nutritional status of malnourished-at-risk patients was high with the provision of Pronisi.

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“…Whereas, harvesting too late may increase the risk of shattering and decrease the quality of seeds due to aging. There are a number of research information on how harvesting stages affect the seed yield in some crops like soya bean (Glycine max), rice (Oryza sativa) and cowpea (Vigna unguiculata) [15][16][17] however, little is known about Roselle. The main objective of this study was to evaluate the growth, yield and shattering characteristics of seeds of twelve accessions of Roselle harvested at different stages.…”

Section: Introductionmentioning

confidence: 99%

Growth, Yield and Shattering Dynamics of Seeds of Twelve Roselle (Hibiscus sabdariffa L.) Accessions

Tandoh

Banful

Idun

et al. 2021

JEAI

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Roselle (Hibiscus sabdariffa L.) is an important crop grown in tropical and subtropical climates with huge nutritional, economic and industrial benefits. The plant undergoes explosive shattering to disperse seeds after physiological maturity leading to high loss of seeds at the time of harvesting. A field experiment was carried out to determine the effect of different harvesting stages on the growth, yield and shattering dynamics of seeds of twelve Roselle accessions in the Department of Horticulture, Kwame Nkrumah University of Science and Technology, Kumasi from March to November, 2019. A 3x12 factorial design in Randomized Complete Block Design (RCBD) was used for the study, where factor one was harvesting stages at three levels (physiological maturity, one week after physiological maturity and two weeks after physiological maturity) and factor two was accessions at twelve levels. The study revealed that accession HS08 performed best in terms of growth (plant height, the number of leaves, number of branches and stem girth) and reproductive parameters (number of days to flowering) and accessions HS27 and HS08 produced the highest yield (number of pods, number of seeds per pod, and total seed yield). Harvesting of seeds at the physiological maturity stage happened to be the ideal time because seeds were harvested safely without any losses (0%) due to shattering as compared to the other harvesting stages. The study also established a very strong, positive and significant relationship between seed yield and number of leaves (r=0.7093) and the number of branches (r=0.9241). However, there was a strong but negative and significant relationship between seed yield and percentage seed shattering loss (r=-0.9633). There was a very strong, positive and significant relationship between number of leaves and stem girth (r=0.7769). The number of seeds per plant correlated positively with the number of pods (r=0.7358). A regression model which was given by the equation; Y (Seed yield)=670.96-0.3152 (Shattering loss), R2=0.9279, p<0.0000, indicated that shattering loss significantly affected seed yield to an extent that it contributed 93% of the variation in the seed yield.

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Effect of Different Harvesting and Threshing Methods on Seed Quality of Rice Varieties

Cited by 17 publications

References 5 publications

Review of grain threshing theory and technology

Review of grain threshing theory and technology

Cookies Prepared using Peanuts, Pregerminated Soybean, and Moringa Leaf Flour Improve Food Intake and Nutritional Status in Malnourished Patients

Growth, Yield and Shattering Dynamics of Seeds of Twelve Roselle (Hibiscus sabdariffa L.) Accessions

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