Effect of Source-sink Treatments on Grain-filling Properties and Seed Setting Ability of Different Panicle Type Rice Cultivars

doi:10.7668/hbnxb.2007.06.017

Abstract

Abstract: The filling properties of grains on diffferent source-sink in 2 panicle types of rice cultivate were studied in this experiment, and the data were simulated and analyzed with Logistic equation Y= K/(loae_-bt).The results indicated that the equation parameters didn't get signfficant level among diffferent source treatments of 2 rice cultivate, the final grain weight of Liaojing 263 had significantly been influenced by sink volume, and the equation parameters of Tiyou 418 get significant difference among bffferent sink treatments. The middle grain weight of Liaojing 263 responded more sensitive than the other; after treatment of source-sink, it was lower grain to Tiyou 418. The grain-filling rate of inferior grain of Liaojing 263 and Tiyou 418 was sensitive affected by the treatments of source and sink. Increasing source-sink ratio or decreasing grain density was benefit to raise average grain weight of inferior grain.

Key words: Rice, Panicle type, Grair-frfilling, Seed-setting ability

CLC Number:

S511.01

WANG Jia-yu, ZHANG Shi-chun, XU Zheng-jin, CHEN Wen-fu. Effect of Source-sink Treatments on Grain-filling Properties and Seed Setting Ability of Different Panicle Type Rice Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(6): 81-86. doi: 10.7668/hbnxb.2007.06.017.

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http://www.hbnxb.net/EN/Y2007/V22/I6/81

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