EFFECT OF PREHARVEST CHEMICAL DESICCATION ON HARVEST TIME AND GRAIN QUALITY IN RICE (ORYZA SATIVA L.)

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MODARAY MASHHOUD M.; ESFAHANI MASOUD; NAHVI M.

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Journal: Journal of Water and Soil Science Year:2008 | Volume:11 | Issue:42 (A) Page(s): 81-91

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Title

EFFECT OF PREHARVEST CHEMICAL DESICCATION ON HARVEST TIME AND GRAIN QUALITY IN RICE (ORYZA SATIVA L.)

Author(s)

MODARAY MASHHOUD M. | ESFAHANI MASOUD | NAHVI M. | Issue Writer Certificate

Keywords

CHEMICAL DESICCANTQ3

GRAIN QUALITYQ3

RICEQ2

Abstract

In order to reduce the rainfall damages on RICE yield at harvest stage, a field experiment was conducted at RICE Research Institute of Iran, Rasht, in 2004 by using Sodium Chlorate as a CHEMICAL DESICCANT. Five seed moisture contents of Dorfak RICE cultivar were considered as experimantal treatments [24 - 28% (M1), 22 - 24% (M2), 20 -22% (M3). 18 - 20% (M4) and control (M5= conventional harvesting)]. The experiment was carried out in a randomized complete block design with three replications and the effects of treatments on grain yield, head RICE yield,seed germination rate and percentage, kernel breakage, kernel cracking, amylose content, gelatinization temperature and gel consistency were evaluated. Results showed that the whole plant and grain moisture contents were significantly reduced in all experimental treatments compared with control. M2 and M3 both cosiderably reduced the plant moisture content in which harvesting occurred 12 and 8 days respectively sooner than the control. In M1, due to high grain moisture and non - simultaneous grain filling in different tillers, many of panicles desiccated prior to maturity lost their quality. In M4, the crop harvested was only 2 days earlier than the control. Analysis of variance showed that there were no significant effects of treatments on evaluated traits. It seems that RICE plant could be reliably desiccated by Sodium Chlorat and harvested earlier without any adverse effects on its quality and quantity.

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APA: Copy

MODARAY MASHHOUD, M., ESFAHANI, MASOUD, & NAHVI, M.. (2008). EFFECT OF PREHARVEST CHEMICAL DESICCATION ON HARVEST TIME AND GRAIN QUALITY IN RICE (ORYZA SATIVA L.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 11(42 (A)), 81-91. SID. https://sid.ir/paper/14982/en

Vancouver: Copy

MODARAY MASHHOUD M., ESFAHANI MASOUD, NAHVI M.. EFFECT OF PREHARVEST CHEMICAL DESICCATION ON HARVEST TIME AND GRAIN QUALITY IN RICE (ORYZA SATIVA L.). WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2008;11(42 (A)):81-91. Available from: https://sid.ir/paper/14982/en

IEEE: Copy

M. MODARAY MASHHOUD, MASOUD ESFAHANI, and M. NAHVI, “EFFECT OF PREHARVEST CHEMICAL DESICCATION ON HARVEST TIME AND GRAIN QUALITY IN RICE (ORYZA SATIVA L.),” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 11, no. 42 (A), pp. 81–91, 2008, [Online]. Available: https://sid.ir/paper/14982/en

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