RESPONSE OF SOME INDICATORS OF VEGETATIVE AND SEED GROWTH OF THE FIRST-GENERATION HYBRID OF GYNOECIOUS CUCUMBERS FOR PROTECTED CULTIVATION TO THE DATE OF HARVEST, THE DATE OF SEED EXTRACTING AND NUTRIENT SPRAYING

Abstract

The experiment was carried out in one of the greenhouses of the Department of Horticulture and Landscaping / College of Agriculture / University of Anbar. With an area of ​​500 m2 during the autumn season 2021, two locally derived strains were pollinated and a sexual modification process was performed on them to produce male flowers and it is considered a pollinator for the other strain. The study included six dates of harvesting and seed extraction, harvesting fruits after 45, 50 and 55 days of hybridization and direct extraction of seeds, symbolized by T1, T3 and T5 sequentially, and harvesting fruits after 45, 50 and 55 days of hybridization and extracting seeds after 5 days of harvest and symbolized by T2, T4 and T6 sequentially. and spraying with three concentrations of BREXIL DUO 0, 1.5 and 3 gm. l-1 and symbolized by S0, S1 and S2 sequentially. The fruits were collected and their seeds extracted according to the dates. The harvesting date after 55 days of hybridization and the date of seed extraction after 5 days of harvesting led to an increase in stem diameter in field emergence and dry weight of field emergence of seedlings if they gave values ​​of 2.288 mm and 47.464 mg sequentially. Treatment with BREXIL DUO showed superiority In the characteristics of vegetative growth at a concentration of 3 g l-1, which amounted to 2.151 mm and 47.870 mg respectively, in addition to the specifications of the seeds represented by the percentage of germination, speed of germination, weight of seeds in fruits and average seed yield in the experimental unit in fruits that were harvested after 55 days of hybridization and date Extraction of seeds after 5 days of harvesting and spraying with a concentration of 3 g l-1 of BREXIL DUO was 99.000, 98.222 (%), 4.479, 5.266 (seed day-1), 3.416, 3.301 (gm. fruit-1), 170.700 and 165 .094 (g) respectively

Keywords

• cucumis sativus
• crosses
• seeds extraction
• harvest date
• hybrid