Effect of the Use of Four Types of Substrates for the Production of Papaya Seedlings (Carica papaya L) in Nursery Conditions. (Original)

Abstract

The research was carried out from October 2019 to February 2020 with the objective of comparing the effect of the use of four types of substrates for the production of papaya seedlings (Carica papaya L) in nursery conditions, using the explanatory or experimental method. The methodology used allowed to carry out a completely randomized experimental design, the variables evaluated was: stem diameter, number of leaves and plant height. The evaluation period was seven days. The results allowed to conclude that the dynamics by content and quality texture within the five treatments favored the treatment T3 = 50% black earth, 25% sand and 25% compost with 94%, providing good germination and excellent morphological behavior of the seedlings ( stem diameter) at treatment T4 = 50% black earth, 20% sand and 30% humus with an average of 2.89 mm and number of leaves was T5 = 50% black earth, 20% sand and 30% compost with 8, 03 and plant height) T5 = 50% black earth, 20% sand and 30% compost, with 11.41 cm and with a low tendency of the T1 control treatment with 100% black earth content due to its low porosity capacity and because of the rains that the plants of this treatment were affected by parasitic phitoptera.