IOSR-JAVS   Volume-15 ~ Issue-5 ~ May 2022

ABSTRACT: The study was conducted in Goalpara District of Assam. Random sampling technique was used for selection of blocks, Villages and Proportionate random sampling for selection of banana growers. From the list of all the banana growers, 100 growers were selected using proportionate sampling method i.e. 31 Marginal, 33 small, 21 semi medium and 15 Medium respectively. For collection of primary data from the respondents' pre structured interview schedules were widely used. Secondary data related to the study were collected from various sources like Agriculture development office of the block, journals, magazines etc. The marketable surplus for Banana in.......

Key words: Marketable surplus, Price Spread, Marketing efficiency, Producer's share in consumer rupees.

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[2]. National Horticultural Board 2019-20.
[3]. Goalpara District Agricultural office, Assam, 783121.
[4]. Mali, BK., Bhosale, S.S., Shendge P.N., Kale P.V., (2000). Economics of production and marketing of banana in Jalgaon district of Western Maharashtra. Indian J. Agric. Mark, 17(1), 173-181.

ABSTRACT: Three storage pests Sitophilus zaemais, Callosobruchus maculatus and Tribolium castaneum were separately subjected to direct contact with powders of Romarinus officinalis and permethrin was used as a positive control in the bioassay. The insecticidal activity of the powder on each of the pests was determined by its toxicity. At 2.50 (wt/wt), of R. officinalis on S. zeamais highest toxicity was recorded at all periods of observations with no significant differences. Similarly, the results of activities of R. officinalis on C. maculatus at all doses significantly (P≤0.001) controlled adult C. maculatus when compared with the control. The treatment dose 0.25 (wt/wt) of R. officinalis on adult T. castaneum (P≤0.001) significantly effected control at all periods of observations. Regardless of the pest under study, R. officinalis at 2.50 (wt/wt) was significantly the most effective when compared with other doses in the bioassay except when compared with the level of toxicity of permethrin to any of the beetles under investigation

Key words: Rosemarinus officinalis, Sitophilus zeamais, Callosobruchus maculatus, Tribolium castaneum, Toxicity, Powder and adult pests

[1]. Abdollahzadeh, G., Sharifzadeh, M.S. and Damalas, C.A. (2015). Perception of the beneficial and harmful effects of pesticides among Iranian rice farmers influence the adoption of biological control. Crop Protection, 75:124-131
[2]. Alao, F.O. and Adebayo, T.A (2011) Comparative toxicology of botanical and synthetic insecticides against major field insect pests of cowpea (Vigna unguiculata (L) (Walp). Journal of Natural Products and Plant Resources, 1 (3): 86-95.
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[4]. Babarinde, G.O., Babarinde, S.A., Agboola, D.O. and Ajayeoba, S.I. (2011). Effect of harvesting methods on physiochemical and microbial qualities of honey. Journal of Food and Science Technology, 48(5) 628-634.
[5]. Babarinde, S.A., Adeyemi, O.A., Odewole, A.F., Yisa, S., Oke, O.O. and Adeyemo, A.O. (2016). Phytochemical composition and insecticidal properties of mechanically extracted castor seed oil against cowpea seed bruchid (Callosobruchus maculatus Fabricius) infesting Bambara groundnut. Elixir Agriculture 92: 39086-39092..

ABSTRACT: For plants, light is one of the most important environmental factors representing the energy source in photosynthesis. Light is the basic signal that regulates the growth and development processes of the plant throughout its entire life cycle. Light condition (light intensity, light quality, and photoperiod) is one of the most important environmental variables in regulating vegetable growth, development, and photochemical accumulation, especially for vegetables grown in controlled environments. With the development of light-emitting diode (LED) technology, studies have become more common in order to regulate light environments and to provide ideal light quality, intensity, and photoperiod for indoor environments. The aim of this review is to collect the effect of different light spectra on the morphology and physiology of the lettuce grown in a closed system.

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[2]. Baek, G. Y., Kim, M. H., Kim, C. H., Choi, E. G., Jin, B. O., Son, J. E., & Kim, H. T. 2013. The Effect of LED light combination on the anthocyanin expression of lettuce. IFAC Proceedings Volumes, 46(4), 120-123.
[3]. Bian, Z., Cheng, R., Wang, Y., Yang, Q., & Lu, C. 2018. Effect of green light on nitrate reduction and edible quality of hydroponically grown lettuce (Lactuca sativa L.) under short-term continuous light from red and blue light-emitting diodes. Environmental and Experimental Botany, 153, 63-71.
[4]. Bures, S., Urrestarazu Gavilán, M., & Kotiranta, S. 2018. Artificial lighting in agriculture. Bibliotecahorticultura, 1-42.
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