Cucumber hybrid seed production of the

In the "Cucumber Hybrid Seed Production Project" experiment of the Tianjin Institute of Cucumber, which was undertaken by Tancheng County, it was found that the number and yield of the first seeded melon seedling directly affected the yield of the plot and the yield of 667 square meters. The first species was found. Melon has a large number of seeds, thousands of major grains, and high yields, resulting in high yield per unit area. The first seed melon seeding condition and yield status have a lot to do with the location of the melon. The first species of melon remains in Sections 5-6. The number of seeds, 1000-grain weight, and yield are significantly reduced compared to Section 7 and remain in Section 8-9 compared to Section 7 There is also a downward trend in production. The first species of melons stays too early (ie, stays at the 5-6 throne). On the one hand, the development of female flowers and male flowers is not sound enough, the pollination quality is poor, and the seeds are few; on the other hand, the functional leaves below the melon position are less. Insufficient supply of nutrients, reproductive growth and nutrient growth compete for nutrients, affecting the growth and development of seeds, resulting in the lower 1000-grain weight of the first seed melon. If the first seed melon is too late (that is, it stays in the eighth to ninth position), it will directly affect the time for the second melon and the subsequent melons to reduce the number of melons per plant. Ascending, the yield of seeds per unit area decreased. Therefore, when cucumbers are hybridized and seeded, the first seed melon should remain in section 7 of the mother's locust or its upper section, but it is generally not advisable to stay below the seventh section. China Agricultural Network Editor