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Rice flour special rice varieties Xiangzaoxian , No. 33, and high-yielding Early Hybrid Rice Combination Luliangyou 996 test materials, using the radionuclide tracer technology and conventional technology combination , two chemical modifiers their rice amylose content (Amylose Content, AC) and its physiological basis for the following conclusions : 1 , spraying chemical regulator can be directed to regulation of rice noodles rice AC also have some impact on the yield . The full heading spraying modifier A can reduce rice rice AC while spraying regulator B improve rice AC . The regulator rice rice production varieties modifier A 33 yield increase Xiangzaoxian regulator B to reduce its production , two regulators are so Luliangyou 996 lower production , but compared with the control , the difference not significant . Impact , spraying chemical regulator rice rice grain starch accumulation process , and ultimately change the AC . The full heading spraying modifier A only promote rice rice grouting early grain starch accumulation can promote the grouting late amylopectin based grain starch accumulation , and ultimately reduce the rice the AC ; the Spraying regulator B also promote rice rice early grain filling stage of grain starch accumulation , but weakened late grain filling stage grain starch accumulation , and ultimately improve rice AC . 3 , spraying chemical regulator can change the characteristics of the rice paddy Source - Library , affect its production . The spraying modifier A No. 33 Xiangzaoxian increase \lower production ; the two modifiers destroyed 996 grouting late Luliangyou source - library coordination , leading to its cut . , Spraying chemical regulator can not only change the growth characteristics of of rice rice plants aboveground , also affect the root activity . The the full heading spraying regulators can enhance rice rice root activity , coordinating the shoot and root growth , increased plant phosphorus absorption rate , increase the phosphorus content of the various parts of the shoot .
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