scholarly journals Both Traditional and Semi-bush Tropical Pumpkin Can Be Intercropped with Beans or Cowpeas

HortScience ◽  
2004 ◽  
Vol 39 (3) ◽  
pp. 525-528 ◽  
Author(s):  
Patrick Chesney ◽  
Linda Wessel-Beaver ◽  
Donald N. Maynard
Keyword(s):  
Puerto Rico ◽  
Phaseolus Vulgaris ◽  
Vigna Unguiculata ◽  
Growth Habit ◽  
Fruit Size ◽  
Cucurbita Moschata ◽  
Percentage Cover ◽  
Maximum Percentage ◽  
Stages Of Growth ◽  
Short Season

Most cultivars of tropical pumpkin (Cucurbita moschata Duchesne) are large, trailing plants. New semi-bush (SB) genotypes need to be tested against traditional long vine (LV) types. Both types of pumpkin have large amounts of interplant space during the early stages of growth that might allow for the planting of an intercrop. To test this hypothesis, as well as the performance of tropical pumpkins of varying growth habit, double rows of beans (Phaseolus vulgaris L.) or cowpeas [Vigna unguiculata (L.) Walp.] were intercropped between rows of SB or traditional LV tropical pumpkin in Spring and Fall 1993 in Lajas and Isabela, Puerto Rico. In general, interactions between intercrop treatment and pumpkin genotype were not significant. At its maximum percentage cover (MC) the LV genotype covered, or nearly covered, the entire plot while the SB genotype covered 50% of the plot or less. The SB pumpkin was harvested 5 to 27 days earlier than the LV type. Yield was two to 12 times greater, and average fruit size three to six times greater in the latter. Planting of an intercrop did not reduce pumpkin yield. Green-shelled yields of intercropped legumes averaged ≈700 kg·ha-1. Genotype of the pumpkin maincrop did not affect legume green-shelled yields in Lajas. In Isabela, legume green-shelled yields were 50% higher in SB than in LV pumpkin plots. Legume dry grain yields were greatly reduced in LV compared to SB plots. Intercropping of tropical pumpkin with a short season legume that can be harvested green-shelled is an efficient intercropping system that offers additional yield from the legume without sacrificing yield from the pumpkin maincrop. Both SB and LV pumpkins can be used in an intercrop system, but pumpkin yields were much greater with the LV genotype.

scholarly journals Pumpkin (Cucurbita moschata) breeding priorities based on a survey among Puerto Rican consumers

1969 ◽  
Vol 74 (3) ◽  
Author(s):  
Manuel E. Carbonell ◽  
Linda Wessel-Beaver ◽  
Felicita Varela ◽  
Brunilda Luciano
Keyword(s):  
Puerto Rico ◽  
Skin Color ◽  
Consumer Preferences ◽  
Fruit Size ◽  
Fruit Shape ◽  
Breeding Program ◽  
Sample Survey ◽  
Medium Size ◽  
Cucurbita Moschata ◽  
Orange Yellow

A sample survey of consumer preferences was conducted in order to determine what characteristics should be given highest priority in a pumpkin (Cucurbita moschata) breeding program for Puerto Rico. A total of 527 people from all regions of the island participated in the survey. Very few preference differences were found due to regions, age groups, sex, or frequency of consumption. Pulp color was the most important characteristic considered when purchasing pumpkin. Most participants preferred an orange-yellow internal color. Skin color was also an important consideration. Respondents strongly preferred a 'pinta' or piebald pumpkin skin. Fruit size was important to many surveyed: most preferred a medium size fruit. Most respondents said they bought pieces rather than whole fruit. Skin type and fruit shape were not important considerations for most respondents. In addition to selection for increased yield, a pumpkin breeding program for Puerto Rico should emphasize selection of genotypes with deep orange-yellow pulp, a 'pinta' skin color and medium-sized fruits.

Response of four common bean cultivars to granular inoculant in a short-season dryland production system

2001 ◽  
Vol 81 (3) ◽  
pp. 385-390 ◽  
Author(s):  
T. Nleya ◽  
F. Walley ◽  
A. Vandenberg
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Field Experiments ◽  
Growth Habit ◽  
Dry Mass ◽  
Phaseolus Vulgaris L ◽  
Host Genotype ◽  
Early Maturity ◽  
Uninoculated Control ◽  
Short Season

Common bean (Phaseolus vulgaris L.) is considered to be a poor N fixer relative to other legumes. However, considerable genotypic variability between cultivars is known to exist. Determining the importance of the host genotype to the symbiotic process will assist breeders in developing bean cultivars with improved N2 fixing capacity. Field experiments were conducted at two locations in Saskatchewan for two seasons to assess the N2 fixation rates of four common bean cultivars differing in growth habit and maturity. Beans were inoculated using a granular inoculant applied in the seedrow or in a sideband, or not inoculated at all. Inoculation resulted in greater nodule dry mass, shoot dry mass, seed yield and amount of N derived from atmosphere as compared with the uninoculated control. The response to inoculant application was cultivar specific, with N derived from the atmosphere ranging from a low of 51% (CDC Camino) to a high of 78% (CDC Pinnacle). The cultivars responded similarly to inoculant placement. The sideband treatment was associated with a delay in maturity. This may limit the suitability of this treatment where early maturity of the crop is critical. Key words: Phaseolus vulgaris, common bean, Rhizobium, N2 fixation, inoculation

scholarly journals Efeito da temperatura na germinação de sementes de vigna, feijoeiro e soja

1983 ◽  
Vol 40 (1) ◽  
pp. 575-583
Author(s):  
P.R.C. Castro ◽  
A. Archila ◽  
F.F.A. Aguiar ◽  
M.de Almeida
Keyword(s):  
Glycine Max ◽  
Phaseolus Vulgaris ◽  
Vigna Unguiculata

Estudou-se em condições controladas, o efeito das temperaturas de 14, 21 e 28°C na germinação de três cultivares de Vigna unguiculata, Phaseolus vulgaris e Glycine max. As sementes foram acondicionadas em placas de Petri com algodão e papel de filtro , mantidos sob alta umidade. Maior germinação foi observada a 21°C em relação as temperaturas de 14 e 28°C, para os cultivares de vigna, feijoeiro e soja. Melhor germinação foi apresentada pelos cultivares de feijoeiro Carioca e Goiano Precoce, seguidos pelo feijoeiro 'Rosinha' , vigna ' EPACE 1' e soja 'Davis' a 21ºC. Os cultivares de vigna, adaptados a altas temperaturas, apresentaram problemas na germinação a 14ºC. Normalmente a velocidade de emergência do hipocólito revelou-se inferior a velocidade de emergência da radícula.

scholarly journals Assessment of Phaseolus vulgaris L and Vigna unguiculata (L.) Walp leaves for antifungal metabolites against two bean fungal pathogens Colletotricum lindemuthianum and Phaeoisariopsis griseola

2014 ◽  
Vol 13 (15) ◽  
pp. 1657-1665
Author(s):  
Alex Diana ◽  
Norentilde;a-Ramirez ra ◽  
Julian Velasquez-Ballesteros Oscar ◽  
Murillo-Perea Elizabeth ◽  
Jairo Mendez-Arteaga Jonh ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Vigna Unguiculata ◽  
Fungal Pathogens ◽  
Phaseolus Vulgaris L ◽  
Phaeoisariopsis Griseola ◽  
Antifungal Metabolites

scholarly journals Intoxicações por plantas em ruminantes e equídeos no Sertão Paraibano

2009 ◽  
Vol 29 (11) ◽  
pp. 919-924 ◽  
Author(s):  
Tales S. Assis ◽  
Rosane M.T. Medeiros ◽  
José Allan S. de Araújo ◽  
Antônio F.M. Dantas ◽  
Franklin Riet-Correa
Keyword(s):  
Phaseolus Vulgaris ◽  
Vigna Unguiculata ◽  
Ricinus Communis ◽  
Mangifera Indica ◽  
Anacardium Occidentale ◽  
Sorghum Vulgare ◽  
Brachiaria Decumbens ◽  
Crescentia Cujete ◽  
Ipomoea Asarifolia ◽  
Aspidosperma Pyrifolium

Foi realizado um levantamento das intoxicações por plantas em 20 municípios do Sertão Paraibano, onde foram entrevistados 50 produtores e 11 médicos veterinários. De acordo com o levantamento realizado, Ipomoea asarifolia e Mascagnia rigida são as intoxicações mais importantes. Indigofera suffruticosa, as plantas cianogênicas (Sorghum vulgare, Piptadenia macrocarpa e Manihot spp.), Mimosa tenuiflora, Aspidosperma pyrifolium e Crotalaria retusa são plantas importantes como causa de intoxicações na região. Os entrevistados relataram casos esporádicos de intoxicação por Ricinus communis, Enterolobium contortisiliquum, Prosopis juliflorae Brachiaria decumbens. Ziziphus joazeiro, Passiflora sp., Caesalpina ferrea e Crescentia cujete foram mencionadas como causa de abortos em ruminantes. Frutos de Crescentia cujete foram administrados a duas cabras prenhes causando mortalidade perinatal e abortos. As cascas de feijão (Phaseolus vulgaris e Vigna unguiculata) e as folhas de Licania rigida (oiticica) são associadas à sobrecarga ruminal em bovinos. As frutas de Mangifera indica (manga)e Anacardium occidentale (cajú) são responsabilizadas por causarem intoxicação etílica. Dalechampia sp. e Croton sp. foram citadas pelos entrevistados como possíveis plantas tóxicas, que ainda não tiveram sua toxicidade comprovada.

scholarly journals A Comparison of Pseudomonas solanacearum- resistant Tomato Cultivars as Hybrid Parents

1995 ◽  
Vol 120 (6) ◽  
pp. 891-895 ◽  
Author(s):  
William G. González ◽  
William L. Summers
Keyword(s):  
Combining Ability ◽  
Growth Habit ◽  
Fruit Size ◽  
General Combining Ability ◽  
Pseudomonas Solanacearum ◽  
Virulent Strains ◽  
Small Fruit ◽  
Indeterminate Growth Habit ◽  
Race 1 ◽  
Tomato Cultivars

Seven tomato Lycopersicon esculentum lines, `Venus', `Saturn', `Rodade', `Rotam 4', `Hawaii 7998', `UC-82B', and `Stevens', and their 21 crosses were evaluated for their ability to resist infection by seven virulent strains of Pseudomonas solanacearum E.F. Sm. representing race 1 biovars 1 and 3. The Gardner and Eberhart model III analysis was used to evaluate the response of lines in crosses to P. solunaceurum infection. General combining ability mean squares were significant for all strains and in 5 of 7 instances specific combining ability mean squares were significant. In four instances the parent vs. cross contrast was significant. `Hawaii 7998' was resistant to all seven strains of P. solanacearum, whereas `Rotam 4' and `Rodade' were resistant to biovar 3 and two races of biovar 1. `Venus' and `Saturn' were resistant to two other biovar 1 strains. `Hawaii 7998' transmitted greater resistance than the other resistant parents, but its small fruit size and indeterminate growth habit make it a poor choice for a hybrid parent.

scholarly journals SILVERING OF CUCURBITA MOSCHATA (DUCHESNE) POIR ASSOCIATED WITH BEMISIA TABACI GENN. (HOMOPTERA: ALEYRODIDAE) IN PUERTO RICO

1969 ◽  
Vol 74 (4) ◽  
pp. 477-478
Author(s):  
Alejandro E. Segarra-Carmona ◽  
Julio Bird ◽  
Jaime Escudero ◽  
Guillermo Fornaris-Rullán ◽  
Rosa A. Franqui
Keyword(s):  
Puerto Rico ◽  
Bemisia Tabaci ◽  
Cucurbita Moschata

SILVERING OF CUCURBITA MOSCHATA (DUCHESNE) POIR ASSOCIATED WITH BEMISIA TABACI GENN. (HOMOPTERA: ALEYRODIDAE) IN PUERTO RICO

scholarly journals Plant Population Affects Yield and Fruit Size of Pumpkin

HortScience ◽  
1999 ◽  
Vol 34 (6) ◽  
pp. 1076-1078 ◽  
Author(s):  
Stephen Reiners ◽  
Dale I.M. Riggs
Keyword(s):  
Growth Habit ◽  
Plant Competition ◽  
Fruit Size ◽  
Field Studies ◽  
Plant Population ◽  
Lower Yield ◽  
Marketable Yield ◽  
Plant Populations ◽  
Fruit Number ◽  
Row Width

Field studies were conducted in 1996 on two pumpkin (Cucurbita pepo L.) cultivars, `Howden' (vining-type growth habit) and `Wizard' (semi-bush growth habit), at two locations to determine the effect of plant population and row width on marketable yield. Increasing plant populations from 2990 to 8960 plants per hectare resulted in significantly greater fruit number and yield at both locations and for both varieties. Average fruit size declined at the highest populations. Increasing row width from 1.8 to 3.6 m resulted in a slight but significant decrease in number of fruit per hectare with no effect on other yield parameters. At one location, the effect of row width on yield and number of fruit per hectare depended on the population. At low populations, row width did not influence yield or fruit number; at high populations, wide rows produced lower yield and fewer fruit than narrow rows. The results demonstrate that growers may increase pumpkin yield by increasing plant populations but should use narrower row widths and wider in-row spacing. Growers who choose higher populations should ensure that all inputs are optimized to reduce potential plant-to-plant competition and use regionally adapted cultivars.

AAC Whitehorse great northern dry bean

2015 ◽  
Vol 95 (1) ◽  
pp. 175-177
Author(s):  
P. M. Balasubramanian ◽  
H.-H. Mündel ◽  
S. Chatterton ◽  
R. L. Conner ◽  
A. Hou
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Size ◽  
Growth Habit ◽  
Field Resistance ◽  
Research Centre ◽  
Phaseolus Vulgaris L ◽  
Dry Bean ◽  
Large Seed ◽  
White Mould ◽  
Early Maturing

Balasubramanian, P., Mündel, H.-H., Chatterton, S., Conner, R. L. and Hou, A. 2015. AAC Whitehorse great northern dry bean. Can. J. Plant Sci. 95: 175–177. AAC Whitehorse is a high-yielding, early-maturing great northern bean (Phaseolus vulgaris L.) cultivar with an upright, indeterminate bush growth habit, large seed size and partial field resistance to white mould. AAC Whitehorse was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB. AAC Whitehorse is suitable for irrigated wide row production in Alberta and Saskatchewan.

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