scholarly journals Optimum Planting Dates for Intercropping Cucumber, Squash, and Muskmelon with Strawberry

2008 ◽  
Vol 18 (4) ◽  
pp. 656-659 ◽  
Author(s):  
Bielinski M. Santos ◽  
Camille E. Esmel ◽  
Silvia Slamova ◽  
Elizabeth A. Golden
Keyword(s):  
Cucumis Sativus ◽  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Field Trials ◽  
Planting Dates ◽  
Air Temperatures ◽  
Summer Squash ◽  
Cucumber Yield

Three separate field trials were conducted to determine the most appropriate planting dates for intercropping cucumber (Cucumis sativus), summer squash (Cucurbita pepo), and muskmelon (Cucumis melo) with strawberry (Fragaria ×ananassa), and their effect on ‘Strawberry Festival’ strawberry yields. ‘Straight Eight’ cucumber, ‘Crookneck’ summer squash, and ‘Athena’ muskmelon were planted every 15 days from 25 Jan. to 23 March. None of the three intercropped species affected strawberry yield up to 60 days before the end of the season on 25 March. Cucumber yield responded quadratically to planting dates, rapidly increasing from 25 Jan. to 23 Feb. and declining afterward. Warmer temperatures favored summer squash yield, with the highest yields when planted on 23 Feb. or later. Muskmelon yields decreased as air temperatures increased, and the best planting dates were between 25 Jan. and 9 Feb. In summary, cucumber and summer squash seemed to be favored by planting under warmer temperatures, whereas muskmelon thrives under cooler weather.

scholarly journals Age-related Resistance of Diverse Cucurbit Fruit to Infection by Phytophthora capsici

2009 ◽  
Vol 134 (2) ◽  
pp. 176-182 ◽  
Author(s):  
Kaori Ando ◽  
Sue Hammar ◽  
Rebecca Grumet
Keyword(s):  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Phytophthora Capsici ◽  
Vegetable Production ◽  
Age Related ◽  
Cucumber Fruit ◽  
Summer Squash ◽  
Pronounced Reduction ◽  
Green Stage

Phytophthora capsici causes severe losses in vegetable production, including many cucurbit crops. Our previous work showed that cucumber (Cucumis sativus) fruit are most susceptible to P. capsici when they are very young and rapidly elongating, but develop resistance as they approach full length at 10 to 12 days postpollination (DPP). In this study, fruit from seven additional cucurbit crops representing four species, melon (Cucumis melo), butternut squash (Cucurbita moschata), watermelon (Citrullus lanatus), and zucchini, yellow summer squash, acorn squash, and pumpkin (Cucurbita pepo), were tested for the effect of fruit development on susceptibility to P. capsici. Field-grown fruit of the different crops varied in overall susceptibility. Zucchini and yellow summer squash were the most susceptible, with the majority of fruit exhibiting water-soaking symptoms within 24 hours postinoculation. Fruit from all of the crops exhibited size-related decrease in susceptibility, but to varying degrees. Cucumber had the most pronounced effect. In infested fields, cucumber fruit were found to be most frequently infected at the blossom end. Comparison of the peduncle and blossom end showed a difference in susceptibility along the length of the fruit for cucumber, butternut squash, and zucchini. Greenhouse-grown, hand-pollinated pumpkin, acorn squash, and butternut squash showed an age-related decrease in susceptibility similar to field-grown fruit. For all of these fruit, a pronounced reduction in susceptibility accompanied the transition from the waxy green to green stage at ≈3 to 8 DPP.

scholarly journals EFEITO DO NÍVEL DE UMEDECIMENTO DO SUBSTRATO SOBRE A GERMINAÇÃO DE CUCURBITACEAS

1993 ◽  
Vol 23 (2) ◽  
pp. 157-160 ◽  
Author(s):  
Nilson Lemos de Menezes ◽  
Terezinha Lucia Denardin da Silveira ◽  
Lindolfo Storck
Keyword(s):  
Cucumis Sativus ◽  
Cucumis Melo ◽  
Cucurbita Pepo

Avaliou-se a germinação e o tamanho inicial das plântulas de pepino (Cucumis sativus), melancia (Citrulius lanatus), melão (Cucumis melo) e mogango (Cucurbita pepo) cujas sementes foram submetidas as condições do teste padrão de germinação, em rolos de papel toalha, umedecidas com as seguintes quantidades de água: 1,0; 1,5; 2,0; 2,5; 3,0 e 3,5 vezes o peso do papel. Os graus de umedecimento que proporcionam as maiores porcentagens de germinação para pepino e melancia são 2,0 a 2,5 vezes o peso do papel. Para o melão os melhores resultados de germinação são conseguidos com graus de umedecimento de 2,0 a 3,0 vezes o peso do papel, enquanto que para o mogango as quantidades de água requeridas são maiores do que para as demais espécies, devido ao maior tamanho de suas sementes. O aumento da quantidade de água no substrato proporciona aumentos no tamanho da parte aérea das Cucurbitaceas, porém o comprimento das raízes pode sofrer reduções variáveis, de acordo com a espécie estudada, quando a umidade está acima da faixa considerada ideal.

Fusarium oxysporum f.sp. melonis. [Descriptions of Fungi and Bacteria].

1970 ◽  
Author(s):  
P. Holliday
Keyword(s):  
North America ◽  
Fusarium Oxysporum ◽  
Cucumis Sativus ◽  
Geographical Distribution ◽  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Damping Off ◽  
Leaf Chlorosis ◽  
Vascular Elements

Abstract A description is provided for Fusarium oxysporum f.sp. melonis. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cucumis melo. DISEASE: Causes a destructive wilt of muskmelon and cantaloupe. The casaba or winter melon is resistant (e.g. var. Honey Dew). Infection occurs on seedlings (pre-emergence and post-emergence damping-off) and older plants (leaf chlorosis, stunting and generai wilt). Streaks appear on the stems up to 0.6 m long; they become necrotic and bear the salmon-pink sporulating masses. In some cases stem cracks develop and a brownish exudate forms. The vascular elements become orange-red and the fruit is much reduced in size. The formae speciales of F. oxysporum from muskmelon and watermelon (Citrullus lanatus) will each attack the seedlings of both hosts, but older plants are susceptible only to their own f.sp. Generally the virulence of a given isolate is greater on its original host (12: 744; 27: 307; 31: 473; Leach, 1936). Cucumber (Cucumis sativus) and marrow (Cucurbita pepo) are resistant (39: 117). GEOGRAPHICAL DISTRIBUTION: Generai in North America (U.S.A., Canada) and Europe. Also reported from Asia (Formosa, Iraq, Japan, Philippines) and Australasia (Australia). TRANSMISSION: Through soil and seed (Leach, 1936).

scholarly journals Planting Date Influences on Yield and Fruit Size of Jack-olantern Pumpkins

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 759E-759
Author(s):  
Elizabeth T. Maynard*
Keyword(s):  
Cucurbita Pepo ◽  
Fruit Size ◽  
Field Trials ◽  
Gold Medal ◽  
Planting Date ◽  
Average Weight ◽  
Mature Fruit ◽  
Planting Dates ◽  
Similar Weight ◽  
Magic Lantern

In northern Indiana, jack-o-lantern pumpkins (Cucurbita pepo) can be planted from late May through June to produce mature fruit for sales associated with Halloween. Field trials were conducted to evaluate the influence of planting date on pumpkin yield and yield components. `Gold Medal' and `Magic Lantern' pumpkins were each seeded on three planting dates (PD) in 2002 (31 May, 10 and 20 June 10) and 2003 (5, 16, and 25 June). Each planting date was harvested between 100 and 110 days after planting. The weight per plant of pumpkins that were completely mature (orange) was greatest for the June 10 planting in 2002 (14.9 kg vs. 12.5 kg for 1st and 12.2 kg for 3rd PD), but did not differ among dates in 2003 (PD1: 10.9 kg, PD2: 10.4 kg, PD3: 9.0 kg). The number of orange pumpkins per plant was lowest for the 20 June 2002 planting (1.63 vs. 1.88 for 1st and 1.91 for 2nd PD) but did not differ among dates in 2003 (PD1: 1.08, PD2: 1.20, PD3: 1.19). The average weight of an orange pumpkin was lowest for the 31 May 200 planting date (7.17 kg vs. 8.35 kg for 2nd and 7.89 kg for 3rd PD) and highest for the 5 June 2003 planting date (10.6 kg vs. 9.07 kg for 2nd and 8.16 kg for 3rd PD). In both years the last planting date produced the least weight per plant, and in 2002 the fewest number, of pumpkins that had begun to turn orange plus fully orange pumpkins. The two cultivars produced similar weight per plant and responded similarly to planting date, but `Gold Medal' produced fewer and larger fruit. No planting date consistently produced the greatest yield or largest fruit.

Cladosporium cucumerinum. [Descriptions of Fungi and Bacteria].

1972 ◽  
Author(s):  
M. B. Ellis
Keyword(s):  
Cucumis Sativus ◽  
Geographical Distribution ◽  
Cucumis Melo ◽  
Seed Treatment ◽  
Cucurbita Pepo ◽  
Host Reaction ◽  
Young Fruit ◽  
Cladosporium Cucumerinum

Abstract A description is provided for Cladosporium cucumerinum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cucumis sativus, Cucumis melo, Cucurbita pepo. DISEASE: Scab of Cucurbits, especially cucumber (Cucumis sativus), muskmelon and cantaloupe (C. melo), and pumpkin, squash and marrow (Cucurbita pepo). Symptoms are most severe on the young fruit where deeply sunken lesions are formed, up to 1 cm diam. and with a gummy exudate. On older fruit infection is restricted by the host reaction and results in the formation of brown, cork-like scabs. Foliage infection (necrotic, water-soaked spots sometimes with a gummy exudate) is not very destructive. Sporulation on the leaf tends to be sparse. At favourable temperature the apical shoots of young plants are killed back. GEOGRAPHICAL DISTRIBUTION: Widespread in N. America and Europe; also in parts of Africa, S. and E. Asia, Panama and Trinidad. The disease has not been reported from Australasia or S. America (CMI Map 310, ed. 2, 1968). Additional records not mapped are Israel and Lebanon. TRANSMISSION: Probably by air dispersed conidia, and the pathogen survives between crops on host debris. Although seed treatment has been recommended (34: 341; 44, 311) C. cucumerinum is probably rarely seed-borne (47, 3058).

scholarly journals Draft Genome Sequences of Six Strains of Lactococcus lactis (Phylum Firmicutes), Spanning the Seeds of Cucumis sativus L. (Cucumber), Cucumis melo L. (Cantaloupe), and Cucurbita pepo var. turbinate (Acorn Squash)

2020 ◽  
Vol 9 (37) ◽  
Author(s):  
Eman M. Khalaf ◽  
Manish N. Raizada
Keyword(s):  
Cucumis Sativus ◽  
Lactococcus Lactis ◽  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Draft Genome ◽  
Genome Sequences ◽  
Cucumis Sativus L ◽  
Content Type ◽  
Cucumis Melo L

ABSTRACT We announce the draft genome sequences of six strains of Lactococcus lactis (EKM101L, EKM102L, EKM201L, EKM203L, EKM501L, and EKM502L). These candidate plant probiotics were isolated from surface-sterilized seeds of Cucumis sativus L. (cucumber), Cucumis melo L. (cantaloupe), and Cucurbita pepo var. turbinate (acorn squash). They display beneficial activities, including biocontrol.

scholarly journals Requirement for Pollenizer in New Monoecious Hybrid Cucumber ‘NC-Sunshine’

2012 ◽  
Vol 22 (2) ◽  
pp. 191-195 ◽  
Author(s):  
Todd C. Wehner ◽  
Rakesh Kumar
Keyword(s):  
Cucumis Sativus ◽  
Cucurbita Pepo ◽  
Fruit Set ◽  
Yield Traits ◽  
Marketable Yield ◽  
Cucumber Yield

Monoecious cucumber (Cucumis sativus) plants generally produce enough pollen for fruit set. The amount of pollen required for fruit set depends on the number of pistillate flowers produced by the cultivar. ‘NC-Sunshine’ is a new monoecious slicing hybrid cucumber with a high percentage of pistillate nodes. Because of the high percentage of pistillate nodes, a pollenizer might be required to maximize pollination to get high total and early yield. Hence, an experiment was conducted at three locations to evaluate the effect of the pollenizer ‘Poinsett 76’ on yield of ‘NC-Sunshine’ compared with no pollenizer ‘Gray Zucchini’ squash (Cucurbita pepo). Differences (P ≥ 0.05) due to pollenizer, location, and the interaction of pollenizer and location on ‘NC-Sunshine’ yield traits were detected. Pollenizer influenced cucumber yield at two of three locations. Results indicated that the pollenizer ‘Poinsett 76’ significantly increased total, marketable, and early yield of ‘NC-Sunshine’. The percentage of early and marketable yield was also higher with the pollenizer ‘Poinsett 76’. In addition, the use of a pollenizer decreased cull yield. Therefore, a pollenizer is needed for monoecious hybrids having a high percentage of pistillate nodes.

scholarly journals DETECCIÓN POR RT-PCR DEL VIRUS DEL AMARILLAMIENTO Y ENANISMO EN CUCURBITÁCEAS (CYSDV) DEL CENTRO-NORTE DE MÉXICO

2012 ◽  
Vol 35 (Especial_5) ◽  
pp. 43
Author(s):  
María G. Álvarez-Ojeda ◽  
César E. Guerrero-Gámez ◽  
Alberto Morales-Loredo ◽  
Yasmín I. Chew-Madinaveitia ◽  
Hazael Gutiérrez-Mauleón ◽  
...  
Keyword(s):  
Cucumis Sativus ◽  
Bemisia Tabaci ◽  
Cucumis Melo ◽  
Cucurbita Pepo ◽  
Citrullus Lanatus ◽  
Rt Pcr ◽  
Cucumis Sativus L ◽  
Nuevo Leon ◽  
Nuevo León ◽  
Cucumis Melo L

Durante los años 2008 y 2009 se muestrearon plantas de melón (Cucumis melo L.), sandía (Citrullus lanatus Thumb), calabacita (Cucurbita pepo L.) y pepino (Cucumis sativus L.), así como especímenes de mosquita blanca (Bemisia tabaci Genn.) en diferentes localidades de los Estados de Nuevo León, Coahuila y Durango. Después de extraer el ARN, las muestras se analizaron con la técnica de RT-PCR, con oligonucleótidos específicos que amplifican regiones conservadas que codifican para las proteínas p22, de choque térmico y la cápside del virus del amarillamiento y enanismo de las cucurbitáceas (CYSDV). Se detectó el virus CYSDV en plantas de melón y sandía, así como mosquita blanca colectada en varias localidades. Se encontraron 26 muestras positivas al virus CYSDV de 129 plantas de la familia Cucurbitaceae en los tres estados estudiados de la región Norte-Centro de México. Los productos de amplificación fueron clonados y secuenciados, y se compararon con las secuencias disponibles en el GenBank. Las secuencias obtenidas a partir de las muestras positivas presentaron de 96 a 100 % de similitud con secuencias de Estados Unidos, España y otros países.

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