Effects of nitrogen and plant spacing on the phenological characteristics, morphology and the yield of medical pumpkin (Cucurbita pepo L.)

Sadeghi -Bakhtouri, A.; Mohammadi, H.; Pasban Eslam, Bahman

doi:10.22092/ijmapr.2017.109707

Document Type : Research Paper

Authors

¹ Agriculture Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran

² East Azarbaijan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Tabriz, Iran

https://doi.org/10.22092/ijmapr.2017.109707

Abstract

In order to investigate the effect of nitrogen and plant spacing on phenological characteristics, morphology, and fruit yield in pumpkin (Cucurbita pepo L.), an experiment was conducted at the farm of Agriculture Faculty, Azarbaijan Shahid Madani University, during 2013. The study was performed as factorial in a complete randomized block design with three replications. The treatments consisted of nitrogen at five levels (0, 50, 100 and 200 Kg ha^-1) and plant spacing with a square array at three levels (30, 60 and 90 cm). According to the results, the planting time until flowering and fruiting was longer in the treatment of 200 kg N. The number of nodes, sub-branches, and leaves per plant was higher in the planting space of 90 cm along with 200 Kg ha^-1 nitrogen. The higher plant length and fruit yield were recorded for the planting space of 60 cm along with 150 Kg ha^-1 nitrogen. The highest leaf dry weight was related to the 200 Kg ha^-1 nitrogen. The use of 150 Kg ha^-1 nitrogen caused to the highest number of male and female flowers, fruit fresh weight, number of seeds per fruit. The higher leaf dry weight, male and female flowers, and fruits per plant were obtained in the planting space of 90 cm. Finally, the application of 150 Kg ha^-1 nitrogen and planting space of 60 cm led to the highest number of fruits and fruit yield in unit area.

Keywords

References

- Aroue, H., Omidbaigi, R. and Kashe, E., 2000. Study of difeerent levels of nitrogen on some characters of medical pumpkin. Journal of Pajouhesh and Sazandegi, 48: 4-9.

- Baghdadi, H., 2004. Effect of planting density and date on seed yield of medical pumpkin. Second Congress of Medical Plants, Tehran, Iran, 27-28 January: 68.

- Bhilla, H.S., 1985. Response of muskmelon within row plant spacing. Indiana Academic Science, 94: 99-100.

- Botella, M.A., Cerda, A., Martinez, V. and Lips, S.H., 1994. Nitrate and ammonium uptake by wheat seeding as affected by salinity and light. Journal of Plant Nutrition, 17: 839-850.

- Cantliff, D.J., 1981. Alteration of sex expression cucumber due to changes in temperature, height intensity and photoperiod. Journal of the American Society of Horticulture Science, 106: 133-136.

- Duncan, W.G., 1973. Insulate and temperature effects on maize growth and yield. Crop Science, 13: 187-191.

- Ebadi, A., Golypour, A. and Nikkhah Bahrami, R., 2006. Effect of pruning and plant distances on yield and yield components of medical pumpkin. Journal of Pajouhesh and Sazandegi in Agronomy and Horticulture, 78: 41-47.

- Edelstein, M., Nerson, H., Nadler, K. and Burger, Y., 1989. Effects of population density on the yield of bush and vine spaghetti squash. Horticulture Science, 70: 398-400.

- Gardner, F.P., Pearce, R.B. and Mitchell, R.L., 1985. Physiology of Crop Plants. Iowa State University Press, 327p.

- Golypouri, A., Rahimzadeh Khoie, F., Mohammadi, S.A. and Bayat, H., 2004. Effect of nitrogen and stem pruning on yield of medical pumpkin (Cucurbita pepo L.). Journal of Agricultural and Natural Resources Science, 13: 32-40.

- Hafideh, F.T., 2002; Effect of foliage density and plant spacing on the number of flowers produced, sex expression, and early and total fruit weight of summer squash (Cucurbita pepo L.cv. Lita hybrid). Journal of Agriculture science, 28: 178-183.

- Ito, H. and Saito, T., 1960. Factors responsible for the sex expression of the cucumber plant. Tohoku Journal of Agriculture Research, 1: 287-308.

- Marcelis, L.F.M., 1992. The dynamics of growth and dry matter distribution in cucumber. Annals of Botany, 69: 487-492.

- Moazen, Sh., Daneshian, J., Valadabadi, S.A. and Baghdadi, H., 2005. Evaluation of plant density and different phosphorus levels on agronomic traits and fruit and seed yields of medical pumpkin. Iranian Journal of Medicinal and Aromatic Plants, 22: 397-409.

- Murkovic, M., Piirronen, V., Lampi, M., Krashofer, T. and Gerhard, S., 2004. Changes chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil. (Part 1: non-volatile compounds). Journal of Food Chemistry, 84: 359-365.

- Nerson, H., 2005. Effects of fruit shape and plant density on seed yield and quality of squash. Horticulture Science, 105: 293-304.

- Reiners, S. and Riggs, D., 1999. Plant population affects yield and fruit size of pumpkin. Horticulture Science, 34: 1076-1078.

- Reiners, S. and Riggs, D.I.M., 1997. Plant Spacing and variety affect pumpkin yield and fruit size, but Supplemental nitrogen does not. Horticulture Science, 32: 1037-1039.

- Robinson, R.W. and Decker-walters, D.S., 1997. Cucurbits. CAB International, 226p.

- Rylski, I., 1974. Effects of season on parthenocarpic and fertilized summer Squash (Cucurbita pepo L.). Journal of Experimental Agriculture, 10: 39-44.

- Sajed, M.A., Hosseini Moghaddam, H., Yazdani, D. and Ahmadieaval, P., 2001. Effect of plastic cover of soil, planting space and amount of potassium and phosphorus on growth and seed and oil yields of Medical pumpkin. National Congress of Iran Medical Plants, Tehran, Iran, 24-26 January: 188.

- Siami, A., Heidari, R. and Dastpak, A., 2003. Measurement of oil content and study of fatty acids of seeds in cucumber cultivars. Journal of Pajouhesh and Sazandegi, 59: 16-19.

- Stepleton, S.C., Chris Wien, H. and Morse, R.A., 2000. Flowering and fruit set of pumpkin cultivars under field conditions. Horticulture Science, 35: 1074-1077.

- Swiader, J.M. and Moor, A., 2002. SPAD-chlorophyll response to nitrogen fertilization. Journal of plant nutrition, 25: 1089-1100.

- Wang, X. and Below, F.E., 1998.Accumulation and partitioning of mineral nutrients in wheat as influenced by nitrogen form. Journal of Plant Nutrition, 21: 49-61.

- Yadegari, M. and Barzgar, R., 2009. Study of plant space of medical pumpkin and ethylen spraying effect on fruit and seed production. Journal of Agronomy and Plant Breeding, 6: 1-9.

- Zehtabesalmasi, S., Javanshir, A, Omidbeigi, R., Alyari, H., Gasemigolezani, K. and Afshar, J., 2002. Effect of planting date and limited irrigation on essence and antol of anison medical plant. Journal of Agricultural Science, 13: 47-56.

Iranian Journal of Medicinal and Aromatic Plants Research

Effects of nitrogen and plant spacing on the phenological characteristics, morphology and the yield of medical pumpkin (Cucurbita pepo L.)

References

References

Volume 33, Issue 1 - Serial Number 81
May 2017
Pages 51-61

Effects of nitrogen and plant spacing on the phenological characteristics, morphology and the yield of medical pumpkin (Cucurbita pepo L.)

References

References

Volume 33, Issue 1 - Serial Number 81May 2017Pages 51-61

Volume 33, Issue 1 - Serial Number 81
May 2017
Pages 51-61