When the watermelon seedlings are unearthed, they are brought out of the ground together with the seed coat, causing the phenomenon that the cotyledons cannot be stretched in time. This phenomenon is called unearthed shells (guarantians call them "caps").
First, the reasons for uncovered shell (a) seed coat thick or seed germination when the soaking time is too short, seed coat can not fully absorb water, soften, and difficult to withdraw from the cotyledons. (b) After the sowing, the soil covered by the soil is too shallow, and the earth pressure on the seeds cannot be covered with the seed coat on the cotyledon. (3) Insufficient soil moisture affects the growth of radicles and hypocotyls. At the same time, due to the lighter weight of dry soils, there is insufficient pressure on the seed coat shape. (4) If the temperature is too low, it is not conducive to the activity of the internal enzymes of the seeds, resulting in the impediment of the growth of the embryonic axis of the young root tree, which cannot be removed from the seed coat.
Second, prevention and control measures (a) appropriate to extend the soaking time, to cut open the seed center does not see dry heart is appropriate. (b) If too little soil is found after sowing, a layer of fine soil or nutrient soil may be added. (C) When the soil is dry, use a spray can to spray warm water through the sun, but be careful to spray thoroughly, not repeatedly spray, and can not be poured "headwater." (4) Once the uncovered seedlings are found, artificial shelling should be carried out in a timely manner. Method: In the morning or after appropriate watering, when the seed coat is wet and soft, hold the seedlings in one hand and gently push the seed coat in one hand. Let the seed coat float and slowly remove the cotyledons.
Various products of Wild Medium Fruit Black Lycium, providing product images and basic parameters with each Black Goji Berry ; Prevents skin wrinkles from developing earlier, leaving skin younger and more energized. It not only can prevent the premature generation of skin wrinkles, but also can supplement the nutrition and eliminate the harmful free radicals in the body. Anthocyanins are natural sunscreens that block the UV rays from damaging the skin. About 85% of skin cells survive if protected with anthocyanins.We are a professional Chinese supplier of Wild Medium Fruit Black Lycium, and look forward to your cooperation!
Wild Medium Fruit Black Lycium
Wild Medium Fruit Black Lycium,Wild Medium Wolfberry Black Dates,Wild Black Wolfberry Tea,Wild Black Wolfberry Juice
Ningxia ZhongYuanDa Agel Ecommerce Ltd. , https://www.freshwolfberry.com