STUDYING RELATIONS OF SOME GROWTH IDICES OF SUNFLOWER AS A SECOND CROP IN VARAMIN REGION

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ESFANDIARI E.; AZIZPOUR K.; SHAKIBA MOHAMMAD REZA; AALIARI HOUSHANG; JAVANSHIR A.; HEJAZI A.A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2004 | Volume:14 | Issue:1 Page(s): 69-85

Download Full-Text

Persian Verion

View:

945

Download:

Cites:

Information Journal Paper

Title

STUDYING RELATIONS OF SOME GROWTH IDICES OF SUNFLOWER AS A SECOND CROP IN VARAMIN REGION

Author(s)

Keywords

GROWTH INDICESQ2

SECOND CROPQ4

SUNFLOWERQ2

VARAMINQ4

Abstract

An experiment based on a randomized complete block design with three replications was conducted in 2001, to determine a suitable SUNFLOWER cultivar as a SECOND CROP, in VARAMIN region. The cultivars under study were belonged to three early (Zariya, Hybrid 25 and Chemianka), middle (Armavirski, Hybrid 33 and Golshid) and late (Progress, Record and Gabor) maturity groups and in two types, hybrid (Hybrid 25, Hybrid 33 and Golshid) and commercial (other cultivars). The stem dry matter in all cultivars increased until the stage of 50 percent flowering, but decreased afterwards. Total dry weight of shoots increased in all cultivars, but a slight decrease in some cultivars, due to falling of leaves and other plant parts, which was observed in later stages. CGR, due to the presence of proper environmental conditions, increased from beginning of growth period, and reached to its maximum value in the flowering stage and then decreased. RGR of different maturity groups was decreased from the beginning of growth period. The rate of decrease was faster at the beginning but slower in the later stages when interplant competition, due to canopy expansion, decreased. LAI increased until the stage of 50 percent flowering and decreased afterwards. The rate of increase was slow at first and then, due to relative leaf area expansion and higher rate of photosynthesis, increased rapidly and reached to its maximum value in the stage of 50 present flowering. It was finally decreased because of shading and senescence of lower leaves, decreased. The Hybrid 25 was the highest yielding cultivar but was not significantly different from Progress, Record, Gabor, Hybrid 33 and Chemianka. Among maturity groups, late maturing cultivars, because their longer period from planting to 50 percent of flowering and seed filling duration, yielded more than the others.

Cites

اثر تاریخ کاشت و پیش تیمار بذر بر مراحل فنولوژیک، خصوصیات مرفولوژیک و عملکرد دانه آفتابگردان

References

Cite

APA: Copy

ESFANDIARI, E., AZIZPOUR, K., SHAKIBA, MOHAMMAD REZA, AALIARI, HOUSHANG, JAVANSHIR, A., & HEJAZI, A.A.. (2004). STUDYING RELATIONS OF SOME GROWTH IDICES OF SUNFLOWER AS A SECOND CROP IN VARAMIN REGION. JOURNAL OF AGRICULTURAL KNOWLEDGE, 14(1), 69-85. SID. https://sid.ir/paper/28747/en

Vancouver: Copy

ESFANDIARI E., AZIZPOUR K., SHAKIBA MOHAMMAD REZA, AALIARI HOUSHANG, JAVANSHIR A., HEJAZI A.A.. STUDYING RELATIONS OF SOME GROWTH IDICES OF SUNFLOWER AS A SECOND CROP IN VARAMIN REGION. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2004;14(1):69-85. Available from: https://sid.ir/paper/28747/en

IEEE: Copy

E. ESFANDIARI, K. AZIZPOUR, MOHAMMAD REZA SHAKIBA, HOUSHANG AALIARI, A. JAVANSHIR, and A.A. HEJAZI, “STUDYING RELATIONS OF SOME GROWTH IDICES OF SUNFLOWER AS A SECOND CROP IN VARAMIN REGION,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 14, no. 1, pp. 69–85, 2004, [Online]. Available: https://sid.ir/paper/28747/en

Related Journal Papers