Mulching has become an important practice in modern field production. The use of mulches in vegetable production is undergoing a radical change away from high input, nonrenewable resources, such as plastic, to the use of high-residue organic mulches from cover crop. The purpose of this present study was to compare the growth and yield of tomato when grown under different organic and inorganic mulches. The experiment was conducted with four treatments in two consecutive years (2016-2017 and 2017-2018) at instructional farm of Sasya Shyamala Krishi Vigyan Kendra, Arapanch and different blocks of South 24 Parganas district. Among the treatments, maximum yield 60.3 t/ha and 58.7 t/ha were recorded under poly mulches in the consecutive years.
Mango is a crop of economic importance for its high export potentiality and usage as fresh and processed products of many kinds. However, increase its shelf life with maintaining postharvest quality and acceptability for long period is prime concerned since mango is a climacteric crop and cannot store for more than 5-7 days after ripening at ambient condition. Low temperature storage along with controlled atmospheric condition is being practised to keep fruits fresh. Controlled atmospheric storage reduces physiological processes, delayed ripening, but, can cause off flavour, internal tissue degradation, poor colouration and other physiological disorders. With the growing consciousness on bad effect of various chemical techniques and environmental hazards emphasizes a need to develop consumer friendly and environment friendly technology to increase shelf life of mango fruits with maintaining its quality and general acceptability. Use of edible coating is now becoming popular because it is a hazard free and environment friendly approach. It has tremendous potentiality to prolong shelf life of mango as whole fruit or fresh cut pieces. Generally, Aloe vera based edible coatings with chitosan have been studied for mango. The present review organised the various study exhaustively on different aspect of postharvest physiology of mango with use of edible coating which shall benefit the researchers for future study.
Molecular identification/ characterization of Bemisia tabaci (Genn.) collected across five agroecological zones of West Bengal, India revealed that it resembles genetic group Q. Seed treatment with thiamethoxam 70WS 3 g/ kg seed incorporated with seedling treatment with acetamiprid 20SP @ 1g/ l, seedling rising under insect proof net and border netting with insect proof net showed efficacy with reducing the occurrence and dispersal of thrips Scirtothrips dorsalis Hood, mite Polyphagotersonemus latus and whiteflies B. tabaci; while their least incidence was observed with IPM module (integration of seed treatment, seedling treatment, seedling raising under insect proof net, border netting technology, installation of yellow sticky trap and need based spot application of spiromesifen and diafenthiuron), with 92.97, 82.68 and 72.97% reduction, respectively; and 98.56% reduction of chilli leaf curl virus (CLCV) incidence could be obtained through IPM with maximum yield of green chili (1.66 t/ ha). Panchagavya, dasaparni and bhramvastra appeared as potent biopesticides in reducing the CLCV causative agents.
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