DIVERSITY OF CROP CULTIVARS IN IRAN

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KOUCHAKI A.; NASSIRI M.; JAHANBIN G.H.; ZARAE A.

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Journal: Desert Year:2004 | Volume:9 | Issue:1 Page(s): 49-67

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Information Journal Paper

Title

DIVERSITY OF CROP CULTIVARS IN IRAN

Author(s)

KOUCHAKI A. | NASSIRI M. | JAHANBIN G.H. | ZARAE A. | Issue Writer Certificate

Keywords

CROP CULTIVARSQ4

RACES DIVERSITYQ2

CROPS IN IRANQ4

Abstract

Tendency towards monoculture has caused a pronounced decline in genetic range in agro ecosystems. On the other hand, the number of improved cultivars with a narrow tolerance level and a so called limited date of performance has been on the increase. In spite of the availability of a tremendous number of commercial varieties, crop production is restricted to a limited number of these varieties. Iran is rich in terms of genetic resources, and diversity of genotypes. Races and populations have been high in number in the past, but this has been reduced to only a few numbers of varieties that presently constitute the main sources of crop production. In this study biodiversity of field crops was investigated at variety level by collecting data from 183 counties in 27 provinces. Based on these data, variety richness, Sorenson similarity index, and Margalef richness index were calculated. Results indicated that despite variance among provinces, wheat and rice exhibited to be the highest in number of variety richness, while oil crops the lowest. From among 34 wheat varieties grown in the country, 10 varieties cover 84% while two varieties 29% of acreage of wheat indicating a low spatial diversity for varieties as based on Shannon index. Even for rice with a high level of variety richness, indices did not exceed 1.5-1.7.

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APA: Copy

KOUCHAKI, A., NASSIRI, M., JAHANBIN, G.H., & ZARAE, A.. (2004). DIVERSITY OF CROP CULTIVARS IN IRAN. DESERT (BIABAN), 9(1), 49-67. SID. https://sid.ir/paper/5321/en

Vancouver: Copy

KOUCHAKI A., NASSIRI M., JAHANBIN G.H., ZARAE A.. DIVERSITY OF CROP CULTIVARS IN IRAN. DESERT (BIABAN)[Internet]. 2004;9(1):49-67. Available from: https://sid.ir/paper/5321/en

IEEE: Copy

A. KOUCHAKI, M. NASSIRI, G.H. JAHANBIN, and A. ZARAE, “DIVERSITY OF CROP CULTIVARS IN IRAN,” DESERT (BIABAN), vol. 9, no. 1, pp. 49–67, 2004, [Online]. Available: https://sid.ir/paper/5321/en

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