Effect of planting date and density on yield and yield components of Medicinal plant pumpkin (Cucurbita pepo L.)

بوم شناسی کشاورزی

Article 18, Volume 6, Issue 2 - Serial Number 20, June 2014, Pages 383-392   

Document Type: Scientific - Research

DOI: 10.22067/jag.v6i2.22665

Authors

Fatemeh Choopan^* ; Mohammad Bannayan Aval; Ghorbanali Asadi; Javad Shabahng

Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad,Iran

Abstract

To study the effects of planting date and planting density on quantitative traits of medicinal plant, Schneider squash (Cucurbita pepo L.), an experiment was conducted at research field of Ferdowsi University of Mashhad, in year 2012. A split plot arrangement based on Randomized Complete Block Design with three replications was used. Treatments consisted of three planting date levels (1 May, 11 May and 21 May) and two density levels (2.5 and 4 Plants per m-2) which were allocated to main plots and sub plots, respectively. At the end of the growing season, the seed yield, fruit yield, number of fruits (per ha-1), number of seed (per m-2), number of seed per fruit, seed weight per fruit, 1000- seed weight and harvest index were measured. Results showed that the second planting date (11 May) results in highest amount of the quantitative study traits. The density of 2.5 plants per m-2, compared to the density of 4 plants per m-2, could result in highest yield and yield components. The interactions of planting date and density were not significant in terms of fruit and seed yield but among the other yield components, significantly affect the number of seed (per m-2), the number of seed per fruit and the seed weight per fruit at the probability level of 5%. Overall this study showed that the optimum planting date and suitable density can play an important role in increasing fruit and seed yield of the pumpkin plant, considering the usefulness of this plant in the food, cosmetics, and medicinal industry.

Keywords

Medicinal plant; Planting distance; Growing period length; Environmental factors

References

ADAS consulting Ltd. 2002. Calendula as Agronomic Raw Material for Industrial Application (CARMINA). (Final Project Report). ADAS Terrington, King’s Lynn, Norfolk, 50 pp.

Aroiee, H., Kashi, A., and Omidbaigi, R. 2000. Effects of salinity and nitrogen nutrition on free-proline and oil content of common pumpkin. Seed and Plant 16(3): 359-373.

Baghdadi, H. 2003. Evaluation of planting date and density on seed yield of pumpkin. In Second Congress on Medicinal Plants, Tehran, Iran 68 pp. (In Persian with English Summary)

Barkhi, A., Rashed-Mohassel, M., Nassiri-Mahallati, M., Hosseini, S., and Moazzen, S. 2009. Effect of planting pattern and plant density on growth, yield and yield components of maize (Zea mays L.) in competition with redroot pigweed (Amaranthus retrofelexus). Iranian Journal of Crop Sciences 11: 67-81. (In Persian with English Summary)

Dodman, A., Shiranirad, A.H., and Naghvi, M. 2010. Effect of planting date and density plant on yield and oil percentage in (Cucurbita pepo L.). In: Eleventh Iranian Crop Science Congress. Environmental Sciences Research Institute, Shahid Beheshti University, Tehran, Iran p. 24–26.

Ebadi, A., Gholipour, A.G., and Nikkhah Bahrami, R. 2008. Effect of bead pruning and between row spacing on yield and yield components of pumpkin (Cucurbita pepo L.). Pajouhesh-va-Sazandegi 78: 41-47. (In Persian with English Summary)

Evans, G.C. 1972. The quantitative analysis of plant growth. University of California Press. ISBN, 0-520-02204-

Ghanbari, A., Nadjafi, F., and Shabahang, J. 2007. Effects of irrigation regimes and row arrangement on yield, yield components and seed quality of pumpkin (Cucurbita pepo L.). Asian Journal of Plant Sciences 6(7): 1072- 1079.

Gholipouri, A., and Nazarnejad, H. 2007. The effect of stem pruning and nitrogen levels on some physiochemical characteristics of pumpkin seed. Pakistan Journal of Biological Sciences 10(20): 3726-3729.

Hadley, P., Summerfield, R., and Roberts, E. 1983. Effects of temperature and photoperiod on reproductive development of selected grain legume crops. Temperate legumes: The physiology, genetics and nodulation. Davies, DR, p. 19-41.

Labbafi, M., Allahdadi, I., Akbari, G., Najafi, F., KhalAaj, H., and Mehrafarin, A. 2012. Quality/Quantity changes in oil and morphological traits of medicinal pumpkin (Cucurbita pepo L.) under different cultivation practices. Journal of Medicinal Plants 11: 212-220. (In Persian with English Summary)

Melissa, W.A.L., Allison, R., Kenneth, R.J., and Barbara, Z.A. 2008. The effects of repeated planting, planting density and specific transfer pathways on PCB uptake by Cucurbita pepo grown in field conditions. Science of the Total Environment 405 (1-3): 14-25.

Moazzen, S.H., Daneshian, J., Valadabad, S.A., and Baghdadi, H. 2006. Study of plant and phosphate fertilization on some agronomic characters and seed and fruit yield of pumpkin (Cucurbita pepo L.). Iranian Journal of Medicinal and Aromatic Plants 22(4): 397-409. (In Persian with English Summary)

Moradi Marjaneh, E. 2012. Quantitative analyses of growth and development of Cucurbita pepo L. in response to plant density and nitrogen fertilizer. MSc Thesis, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran. (In Persian with English Summary)

Nerson, H. 2005. Effects of fruit shape and plant density on seed yield and quality of squash. Scientia Horticulturae 105(3): 293-304.

Parkash, S., Jamwal, R., and Thakur, D. 1994. Response of field pumpkin (Cucurbita pepo) to sowing date and plant spacing. Indian Journal of Agronomy 39(3): 488-488.

Rahnama, A. 2007. Plant Physiology. Puran Research Publications, Tehran, Iran. 143 pp. ISBN, 978-964-2547-95-1. (In Persian)

Sandhu, P. 1984. Effect of sowing dates, phosphorus, levels and herbicides on the response of Rhizobium inoculation in lentil. Lens Newsletter 11: 35.

Shabahang, J., Khorramdel, S., Asadi, G., meerabai, A., and Nemati, H. 2010. Effect of row spacing and row spacing on yield components, seed yield and Pumpkin oil (Cucurbita pepo L.). Journal of Agroecology 2(3): 417-427. (In Persian with English Summary)

Sharma, R. 2004. Agro-Techniques of Medicinal Plants: Daya Publishing House, Delhi, 264 pp.

Thomas, D., Breve, M., Raymer, P., Dasilva, J. 1990. Planting date effect and double-cropping potential of rape in the southeastern United States. Applied Agricultural Research 5: 205-211.

Zhang, X. 1998. Regulatory Situation of Herbal Medicines A worldwide Review. World Health Organization 26.