Promoting or inhibiting bolting in Chinese cabbage
隐藏域元素占位
Promoting or inhibiting bolting in Chinese cabbage
Regulators that promote/inhibit bolting in Chinese cabbage
Gibberellic acid
For vegetables that require low-temperature vernalization to bolt and bloom, gibberellic acid can be used to induce the completion of the vernalization stage.Spraying plants or dripping growing points with 50~500 mg/L gibberellic acid solution can make two-year-growing sunshine crops early bolting and flowering under short-day conditions before overwintering.
Yiyadan
From September to early spring in warm regions, split bulbs and bolting will be a problem. In spring cultivation, from sowing to emergence, seedlings are always under low temperature conditions, and bolting often occurs.Therefore, it is often necessary to raise seedlings in hotbeds, and it has been cultivated under thermal insulation conditions until mid-September to prevent it from bolting. Spraying Yiyadan (Qingxiansu) has the effect of inhibiting bolting.Use 1000~3000 mg/L liquid medicine, spray 50 kg per mu. The spraying period is in the core or ball forming stage, and flower buds are also formed, but before the elongation, about late November to early December.After spraying green fresh element, bolting was inhibited, cracking ball was reduced, and the number of healthy and intact Chinese cabbage was increased.However, after spraying, it has some influence on the development and growth of the heart leaves, so that the ball of the bag does not feel tight, but it does not affect the appearance. However, it should be noted that due to toxicity and residue problems, the use of Yiyadan should be implemented in accordance with national policies.
Paclobutrazol
Spraying with 100 mg/L paclobutrazol at 7 true leaves, 5 times in a row, delayed the flowering of bolting-prone cultivars in suppressing plant height.
Growth Stage Products
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