EFFECT OF WEATHER TEMPERATURE AND SOLAR RADIATION ON GRAIN YIELD AND YIELD COMPONENTS OF RICE UNDER DIFFERENT LOCAL CLIMATES IN MAZANDARAN PROVINCE

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FATHI NAHID; PIRDASHTI HEMMATOLLAH; NASIRI MORTEZA; BAKHSHANDEH ESMAEIL

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2017 | Volume:19 | Issue:1 Page(s): 163-176

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Title

EFFECT OF WEATHER TEMPERATURE AND SOLAR RADIATION ON GRAIN YIELD AND YIELD COMPONENTS OF RICE UNDER DIFFERENT LOCAL CLIMATES IN MAZANDARAN PROVINCE

Author(s)

FATHI NAHID | PIRDASHTI HEMMATOLLAH | NASIRI MORTEZA | BAKHSHANDEH ESMAEIL | Issue Writer Certificate

Keywords

DIFFERENT LOCAL CLIMATESQ1

REGRESSION ANALYSISQ2

RICEQ2

SOLAR RADIATIONQ2

WEATHER TEMPERATUREQ1

Abstract

This study aimed to investigate the effect of DIFFERENT LOCAL CLIMATES on grain yield (GY) and yield components (YC) of two different RICE cultivars (cvs. ‘Tarom Hashemi’ and ‘Shiroudi’) and also to quantify the relationships between GY and YC with the average of WEATHER TEMPERATURE (T, °C) and SOLAR RADIATION (SR, MJ m-2 d-1) during the growing season of RICE. Three field experiments were conducted separately based on the randomized complete blocks design with four replications, at the paddy fields of Babolsar, Amol and Polesefid cities in northern Iran in 2014. The results indicate that the effect of DIFFERENT LOCAL CLIMATES were statistically significant on GY, the number of panicles, length of panicle, weight of panicle, total number of grain in each panicle and the number of filled grain (P<0.01). In all traits, the values related to Polesefid were lower than both Amol and Babolsar which can be resulted in lower T and SR during the RICE growing, especially in the reproductive stage. Decline in T and SR due to increasing in the above mean sea level were cased a decrease in GY and biological yield of both cultivars (about 10-25 percent, depending on the cultivar). In addition, GY was affected by decrease in T more than SR. Consequently, the results shown that we simply can quantify the variation in GY in both cultivars under DIFFERENT LOCAL CLIMATES and also can calculate a possible reduction in GY due to the delay in transplanting.

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APA: Copy

FATHI, NAHID, PIRDASHTI, HEMMATOLLAH, NASIRI, MORTEZA, & BAKHSHANDEH, ESMAEIL. (2017). EFFECT OF WEATHER TEMPERATURE AND SOLAR RADIATION ON GRAIN YIELD AND YIELD COMPONENTS OF RICE UNDER DIFFERENT LOCAL CLIMATES IN MAZANDARAN PROVINCE. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 19(1 ), 163-176. SID. https://sid.ir/paper/209641/en

Vancouver: Copy

FATHI NAHID, PIRDASHTI HEMMATOLLAH, NASIRI MORTEZA, BAKHSHANDEH ESMAEIL. EFFECT OF WEATHER TEMPERATURE AND SOLAR RADIATION ON GRAIN YIELD AND YIELD COMPONENTS OF RICE UNDER DIFFERENT LOCAL CLIMATES IN MAZANDARAN PROVINCE. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2017;19(1 ):163-176. Available from: https://sid.ir/paper/209641/en

IEEE: Copy

NAHID FATHI, HEMMATOLLAH PIRDASHTI, MORTEZA NASIRI, and ESMAEIL BAKHSHANDEH, “EFFECT OF WEATHER TEMPERATURE AND SOLAR RADIATION ON GRAIN YIELD AND YIELD COMPONENTS OF RICE UNDER DIFFERENT LOCAL CLIMATES IN MAZANDARAN PROVINCE,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 19, no. 1 , pp. 163–176, 2017, [Online]. Available: https://sid.ir/paper/209641/en

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