Jujube fruit monitoring

Jujube fruit monitoring

Fruit fracturing . typically occurred in the fruit begins to full red coloring to red crisp ripe stage, . mostly the fruits that developed by very early maturing varieties blossoms in mid-September. . The early, mid and late varieties developing in very early September as well as the late-maturing . varieties develop in October and mid-mature numerous later blossom form fruits are . hardly ever fracturing. Happens cracking year are the rainy period ends early, . mid-August to very early September with the drought year. Rainy season ends late, mid-August . to early September with dry spell years, even if the simple cracking varieties are . seldom splitting, or does not occur cracking.The .

major actions to avoid breaking: ‘chosen anti . fruit breaking varieties, which is an essential step to resolve splitting; a from late July, as soon as every 15 days spray 3g/kg calcium chloride solution once until the . harvest, or 8 months late, in the fruit surface area spray 50 to 100 times lime . service; b very early August to early September .
watering when drought, dirt wetness progressively continued to be at 12% to 14%, can . through cover movie, straw or straw crown to decrease water dissipation, and also . prompt drainage to stop waterlogging, make the soil water-containing . remained secure, can greatly lower the splitting price; c very easy breaking varieties can be timely harvesting and handling in . mature duration in order to stay clear of fracturing losses.After .

the jujube start coloring usually occurs immature fruit drop sensation, recognized as . preharvest fruit drop. To avoid this phenomenon can be splashed naphthalene . acetic acid. Use method is in 10 to 15 days of late mature and before mature . splashing 50 to 70 mg/kg concentrations of naphthalene acetic acid or pimacol service one time. When splashing, it calls for fruit . surface, track packed with medications, delaying stalk abscission cell disintegration . time, make the fruit gets to maturity and afterwards typical harvest. After spraying naphthalene . acetic acid, there are no damaging effects on fruit high quality. Naphthalene acetic . acid can not straight soluble in water, prior to using, you need to use a tiny of . alcohol or boiling water to totally dissolved naphthalene acetic acid, then . diluted with water to the use focus. For instance, 5g naphthalene acetic acid plus 50ml of 95% . ethanol, drinking to dissolve totally, after that poured into 100 kg water, mix well that was 5mg/kg . concentrations of naphthalene acetic acid solution. Naphthaalene acetic acid . liquified with alcohol can be kept, when spraying, directly take a certain . amount of naphthalene acetic acid mother liquor thinned down with water. Dissolved naphthalene . acetic acid with alkali option, initially placed the naphthalene acetic acid right into . beaker, add a little water and also heated up to the boil, then slowly include a tiny . amount food base, as well as continue mixing up until totally liquified naphthalene . acetic acid, quit home heating, after cooling down can be watered down with water. Include alkali . have to not place right into boiling water at as soon as, to prevent a great deal of carbon . dioxide bubbles launched, the fluid overflow beaker. Pimacol can be directly dissolved . in water and salt, much more convenient than naphthalene acetic acid. Naphthalene . acetic acid as well as pimacol can be combined with neutral pesticide and also urea, yet can not . be used with alkaline pesticides, such as Bordeaux.In .

enhancement, it can utilize the spray PCPA. Apply 10 to 20 mg/kg focus of . PCPA (ie chlorinated acetic acid) for stopping preharvest jujube fruit decline likewise . have a good result, spraying time is the very same as naphthalene acetic acid.Finally

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ripening harvest, after spraying naphthalene acetic acid and also various other plant development regulatory authorities, the jujube harvest would certainly be suitably delay, track with sticks, . raised harvesting challenging. If it takes place, can properly delay the .
harvest timeScience Articles< img src="https://rdmintl.com/wp-content/uploads/2021/06/c9nVuj.gif" alt="Science Articles" boundary="0"/ >, or spray 200 mg/kg ethephon ripening harvest.Source: http://www.cospcn.com

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