COMPARISON OF LOW AND OPTIMUM TEMPERATURE EFFECTS ON MORPHOLOGICAL TRAITS AND YIELD OF RICE VARIETIES AT DIFFERENT GROWTH STAGES

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GHADIRNEZHAD S.R.; FALAH A.

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Journal: JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES) Year:2013 | Volume:5 | Issue:2 Page(s): 155-164

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Title

COMPARISON OF LOW AND OPTIMUM TEMPERATURE EFFECTS ON MORPHOLOGICAL TRAITS AND YIELD OF RICE VARIETIES AT DIFFERENT GROWTH STAGES

Author(s)

GHADIRNEZHAD S.R. | FALAH A. | Issue Writer Certificate

Keywords

RICE VARIETIESQ2

COLD STRESSQ2

MORPHOLOGICAL TRAITSQ1

GROWTH STAGESQ2

Abstract

In order to comparison of low and optimum temperature effect on MORPHOLOGICAL TRAITS and yield of RICE VARIETIES at different GROWTH STAGES, an experiment was performed as split plot factorial based on completely randomized design (CRD) in green house of Iran’s rice research Institute (Amol) During 2010, in three repetitions. This treatment included 5 RICE VARIETIES as main factor in order Shirudi, Fajr, local Tarom, Hybrid and line 843 and 2 levels of temperature T1 and T2 in order 13 and 32oc along with 5 levels of growth G1 to G5 in order, after transplanting to tillering, stem elongation, booting, flowering, grain filling that were as two sub factors. Three seedlings were planted in each pot. At the first, all of them were kept in normal temperature then they were kept in 13 c° for 15 days then they were transferred to 32 c° place. After treatment temperatures in each growth stage plant height, number of tillers and leaves per hill, shoot and leaf dry weight in hill and after harvesting panicle length and yield were measured. The analysis of variance results show that the effects of cultivar, levels of growth and temperature and their interactions effects on all morphological characters are significant at one percent level of probability. Interaction effect of variety and temperature showed that most tolerant variety in relation to temperature stress along with least percentage yield (19%) is shirudiy variety and the most sensitive variety in relation to stress with most percentage of yield decrease (29%) was local tarom. By reducing the temperature from 13oc to 32oc plant height, number of tillers and leaves per hill, number of green leaves in the hill, shoot and leaf dry weight in hill were decreased.

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APA: Copy

GHADIRNEZHAD, S.R., & FALAH, A.. (2013). COMPARISON OF LOW AND OPTIMUM TEMPERATURE EFFECTS ON MORPHOLOGICAL TRAITS AND YIELD OF RICE VARIETIES AT DIFFERENT GROWTH STAGES. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), 5(2), 155-164. SID. https://sid.ir/paper/182306/en

Vancouver: Copy

GHADIRNEZHAD S.R., FALAH A.. COMPARISON OF LOW AND OPTIMUM TEMPERATURE EFFECTS ON MORPHOLOGICAL TRAITS AND YIELD OF RICE VARIETIES AT DIFFERENT GROWTH STAGES. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)[Internet]. 2013;5(2):155-164. Available from: https://sid.ir/paper/182306/en

IEEE: Copy

S.R. GHADIRNEZHAD, and A. FALAH, “COMPARISON OF LOW AND OPTIMUM TEMPERATURE EFFECTS ON MORPHOLOGICAL TRAITS AND YIELD OF RICE VARIETIES AT DIFFERENT GROWTH STAGES,” JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), vol. 5, no. 2, pp. 155–164, 2013, [Online]. Available: https://sid.ir/paper/182306/en

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