Control of Weeds in the Japanese Pumpkin Hybrids

Abstract

The Japanese pumpkin known as "Tetsukabuto" is the result of crossing selected lines of squash. Squashes are highly susceptible to weed interference due to slow initial growth, requiring more considerable attention as to their control. Studies focusing on the losses caused by weeds to Japanese pumpkin hybrids are scarce. Thus, this study aimed to evaluate the influence of weed control on the fruit yield of Japanese pumpkin hybrid cultivars. A randomized block design with four replications in a 3x4 factorial scheme was used. Three cultivars (Corina F1, Triunfo F1, and Takayama F1) and four weed control periods, without weed control, weed control from 0 to 30 and from 0 to 60 days after transplanting (DAT), and weed control throughout the crop cycle (continuous control) were evaluated. The harvest was carried out at 105 DAT, and it was evaluated population density of the weed community, yield, fruit diameter, fruit fresh mass, number of fruits per plant, pulp thickness, and internal fruit cavity thickness. The weed control from 0 to 60 DAT and continuous weed control resulted in the lowest weed population density and weed dry matter. The weed control from 0 to 60 DAT provided a higher number of fruits per plant, fruit diameter, fruit fresh mass, and thicker pulp. The highest development and fruit yield of Japanese pumpkin hybrids was observed when the plants were free from weed interference until 60 days after transplanting.

Effects of including of Japanese Pumpkin Seeds and Pomace in the Diets of Pacific White Shrimp (Penaeus vannamei)

“…Pumpkins are species of the genus Cucurbita, which belong to the Cucurbitaceae family and are represented by about 15 species, the main representatives being the species Cucurbita maxima, Cucurbita moschata and Cucurbita pepo [1,2]. Global pumpkin production exceeded 23.7 million tons in 2021, with China leading the global production, followed by India [3].…”

“…Tetsukabuto), popularly known as 'Cabotiá', is a hybrid species that crosses the C. maxima and C. moschata lineages [1,5]. This species has important cultivation characteristics, such as precocity, rusticity, high productive potential, quality, and long shelf life [1]. Pumpkin is mainly used in the production of jams and sweets.…”

Avaliação setorial do uso da água no Brasil: uma análise de equilíbrio geral computável (CGE)

“…Cabe destacar que o aumento na produção de alimentos não advém somente da expansão das áreas agrícolas, mas também do aumento da produtividade, que pode ocorrer devido a irrigação como mostra os estudos de (Silva Paz et al 2000;Guerra et al 2003) e do uso de fertilizantes como destacou o estudo da Fiesp 2015em projeções para 2025.…”