Each topic is designed to focus on a particular aspect of production and provide the latest management technology for that phase of production. The seven topics covered in this bulletin are all integral parts of a successful pumpkin/gourd management program. This publication is the result of a joint effort among four of the disciplines in the University of Georgia College of Agricultural and Environmental Sciences that serve the Georgia vegetable industry. Harvesting, Curing and Storing Pumpkins and Gourds.Pumpkin and Gourd Production on Plastic Mulch.Botanical Classifications, Origins and Uses.Langston, Jr., Extension Plant Pathologist Overall, squash interspecific hybrid was the most promising rootstock for early-season high tunnel cucumber production in the Midwest United States.Edited by William Terry Kelley, Extension Horticulturistĭavid B. Cucumbers grafted with figleaf gourd rootstock had the lowest yield and the least plant growth after mid-May, indicating figleaf gourd rootstock may not be suitable for cucumber production under the current production system. Only squash interspecific hybrid rootstock improved cucumber yields in the entire production seasons. The benefits provided by using grafting technology dismissed around middle May. Grafted cucumbers with squash interspecific hybrid rootstock significantly increased vine growth from March to April and increased early-season yields (yield before 15 May) by 1.8 to 18.2 times compared with the early-season yields of the nongrafted cucumbers. Suboptimal soil conditions were encountered in the first month after transplanting. Grafted plants regardless of rootstocks ensured transplant survival even when the soil temperatures were dropped below 10 ☌. Transplant establishment, vine growth, and yield in early- and main-crop seasons were investigated. Nongrafted ‘Socrates’ and ‘Socrates’ grafted with Cucurbita moschata, squash interspecific hybrid, and figleaf gourd rootstocks were evaluated in high tunnels from March to June or July in 2016–19 at the Southwest Purdue Agricultural Center in Vincennes, IN. This study was therefore designed to compare the major types of cucumber rootstocks with the goal of identifying a rootstock with the maximized benefits for high tunnel cucumber production in the area. But their comparative performance was largely unknown for cucumber production in high tunnels in the Midwest United States. moschata) are the most used cucumber rootstocks worldwide. Figleaf gourd (Cucurbita ficifolia), Cucurbita moschata, and squash interspecific hybrid (Cucurbita maxima × C. But this technique is rarely used in the United States mainly because of the lack of information on the performance of the grafted plants under local production systems. Using grafting technology in cucumber (Cucumis sativus) production is widely adopted in Asia to enhance cucumbers’ tolerance to low temperatures.

There is a great potential to expand this technology to other high tunnel crops. Grafting technology is increasingly being accepted in the United States, particularly for tomato (Solanum lycopersicum) production under protected structures. This study reveals a novel regulatory mechanism of rootstock-induced cold tolerance. MeJA subsequently increases melatonin accumulation, forming a self-amplifying feedback loop that leads to increased H2O2 accumulation and cold tolerance. Taken together, our results suggest that melatonin is involved in grafting-induced cold tolerance by inducing the accumulation of MeJA and H2O2. Additionally, inhibition of H2O2 production attenuated MeJA-induced tolerance to cold stress. MeJA application induced H2O2 accumulation and cold tolerance, but inhibition of JA biosynthesis abolished rootstock- or melatonin-induced H2O2 accumulation and cold tolerance. Exogenous melatonin increased the accumulation of MeJA and H2O2 and enhanced cold tolerance, while inhibition of melatonin accumulation attenuated rootstock-induced MeJA and H2O2 accumulation and cold tolerance. Increased melatonin levels in leaves were associated with both increased melatonin in rootstocks and MeJA-induced melatonin biosynthesis in leaves of plants under cold stress. Here, we show that pumpkin- or figleaf gourd rootstock-enhanced cold tolerance of watermelon shoots is accompanied by increases in the accumulation of melatonin, methyl jasmonate (MeJA), and hydrogen peroxide (H2O2). Grafting is widely applied to enhance the abiotic stress tolerance of many horticultural crop species however, the signal transduction mechanism involved in this tolerance remains unknown. AbstractRoot–shoot communication has a critical role in plant adaptation to environmental stress.

Figleaf gourd when to pick up