Application of Plant Growth Regulators in Chestnut

- Jun 11, 2018 -

1.Effect on high yield cultivation of chestnut

Naphthyl bismuth glycoside rooting powder : The spraying of rooting powder on mature chestnut trees can reduce the pupa phenomenon and increase the 1000-grain weight and yield per plant.


2.Increased output of chestnut control

Chestnut saplings thrive, with large shoot growth, fewer branches, large crowns and bald pods, resulting in shifting parts and low yields, which is a major problem in production.


Paclobutrazol: Treated with 15% paclobutrazol powder soil before germination, each 4g up to no more than 10g for treatment, can inhibit the growth of shoots, make the internodes shorter, increase the thickness, leaves hypertrophy, dark green leaves, As a result, the mother stalks are stout, and they have strong continuous results and high yield.


3.Effect on Bold Growth and Elongation Growth of Chinese Chestnut

(1)Gibberellin acid: Treatment with 100, 200 mg/L gibberellin has a significant effect on the elongation of the resulting shoots.


(2)6-benzylaminopurine(6-BA): Treatment with 100 mg/L of 6-benzylaminopurine significantly promoted the thickening of the resulting shoots.


(3)Ethephon: Ethephon promotes the thickening and elongation of the resulting shoots. The treatment with 50 mg/L has a significant promoting effect on the thickening growth, and the treatment with 50 mg/L and 100 mg/L has a significant effect on elongation. Growth has a significant role in promoting.


(4)Paclobutrazol: 1500mg/L treatment had a significant promotion effect on the thickening of the resulting shoots, and had a significant inhibitory effect on the elongation of the resulting shoots.


4.Effects on the number of female flower clusters and male inflorescences

(1)Gibberellin acid: Treatment with 50 mg/L and 100 mg/L gibberellic acid significantly increased female flower clusters and decreased male inflorescence numbers.


(2)6-Benzylaminopurine(6-BA): treatment with 6-benzylaminopurine 200 mg/L can significantly increase the number of female flowers, but there is also a certain role in promoting male but not obvious.


(3) Ethephon: Ethephon has the effect of promoting the female at high concentrations and inhibiting the female at high concentrations. It can significantly increase female flower clusters at 50 mg/L, and significantly inhibit female flowers at 100 mg/L and 200 mg/L.


(4) Paclobutrazol: At 500 mg/L and 1000 mg/L, female flower differentiation can be significantly increased.


5.Effect on the number of chestnuts

(1)Gibberellin acid: Treatment with 50 mg/L and 100 mg/L significantly promoted the cedarworm.


(2) Ethephon: The effect on the number of awnings was particularly obvious. After treatment with 100 mg/L and 200 mg/L, chestnut twigs did not grow.


(3)Paclobutrazol: It has a promoting effect on the number of awnings. When 1000 mg/L or 1500 mg/L, it can significantly increase the number of awnings.

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