Luffa plants require a minimum isolation distance of 500 to 1000 meters to avoid cross-pollination and maintain the purity of the variety. When selecting loofah seeds, it's essential to choose plants that exhibit the desired characteristics of the specific strain. Ideal seed plants should have short and uniform internodes, moderate leaf size, short petioles, early fruiting, and consistent thickness along the entire length of the fruit. These selected plants are then manually pollinated, and after the process, they are covered with paper bags to prevent accidental hybridization.
The bagging technique involves placing a small paper bag over the female flower after self-pollination using the male stamen. Once the flower begins to wilt, the corolla can be carefully removed, allowing the fruit to develop properly while marking it clearly to avoid confusion. Typically, 3 to 4 fruits per plant are retained for seed production. The best time to harvest the seeds is after the plants have naturally withered and the fruits have been cut open. The seeds should then be dried thoroughly before storage to ensure viability and quality. This careful selection and handling process helps preserve the genetic integrity of the loofah strain for future planting.
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