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《Journal of Southwest Agricultural University》 1987-01
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PHYSIOLOGICAL MECHANISM OF KERNEL SHRIVELLING IN WHEAT

Liu Zhongqi, Mu Zhiyuan(Department of Agroaomy, Southwest Agricultural University)  
Using 23 entries of wheat with either shrivelled or plump seed characteristics, we discussed the basic physiological attributes responsible for kernel shrivelling in wheat. At nowdays productive level source is not the main reason of seed shrivelling. It spite of the positive and significant correlation between sink volume and shrivelling index (SI) (r=0.5413~(**)) the sink volumes of most tested lines are not gone out of the supply ability of source. The activty of acid sucrose invertase was higher in the plump lines than that of shrivelled ones in the later phase of kernel development. It is therefore concluded that the primary factors affecting kernel filling may be the rates of reformation and invertment of organic compounds in the sink. The filling rate was negatively and significanfly correlated with SI (r=-0.5440~(**)), which means that during the kernel filling period the transporting rate of photo-assimilates from vegetative mass to grain is another factor influencing kernel shrivelling.
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Wang Shouhai;Li Zegong, (Rice Institute, Anhui Academy of Agricultural Sciences);RESEARH ON CHANGES OF GRAIN WEIGHT AND AMYLOSE CONTENT IN RICE DURING RIPENING PROCESS[J];Journal of Anhui Agricultural Sciences;1990-01
2 Li RonggaiMeng XiangzhenWang YuzhenFeng RuiguangMeng LingqiNing Wenshu (Institute of Rice Research, HAAFS, Tanghai 063200);Study on Dry Matter Production,Accumulation, Transportation and Grain Plumpness in Intersubspecific Hybrid Rice[J];JOURNAL OF AGRICULTURAL UNIVERSITY OF HEBEI;1999-01
3 Wu Zhiquang, Lin Wengxiong and Liang Yiyuan (Dept, of Agronomy, FAC);STUDIES ON THE GRAIN-FILLING CHARACTERISTICS OF HYBRID RICE[J];;1987-02
4 Huang Qiyu and Wu Zhiqiang (Dept.of Agronomy, FAC);THE RELATIONSHIP BETWEEN THE ATPase ACTIVITY OF THE RICE SPIKE AND THE GRAIN FILLING[J];;1989-04
5 Hong Zhifan Lin Fei Zhuang Baohua Zhu Chaozhi Yang Judian (Dept. of Agronomy, FAC, Fuzhou 350002);Studies on Agro-physio-ecological Characteristics of Two-line Rice Hybrids Ⅱ. Characteristics of Dry Matter Production and Partitioning[J];;1992-02
6 Huang Yumin 1 Chen Qifeng 2 Li Yizhen 1 ( 1 Rice & Wheat Research Institute of Fujian Academy of Agricultural Sciences, Fuzhou 350001; 2 College of Crop Science, FAU, Fuzhou 350002);Changes of sink source characteristics during the cultivar improvement in rice in China[J];JOURNAL OF FUJIAN AGRICULTURAL UNIVERSITY(NATURAL SCIENCE);1998-03
7 Li Ronggai\ Meng Xiangzhen\ Wang Yuzhen\ Wang Zhenqi Feng Ruiguang Meng Lingqi\ Ning Wenshu (Rice Research Institute of Hebei,Tanghai 063200);Comparative Studies on Dry Matter Production, Photosynthetic Characters and Grain Plumpness Among Various Types of Rice[J];ACTA AGRICULTURAE BOREALL—SINICA;1998-03
8 Deng Qiyun Ma Guohui (Hunan Hybrid Rice Research Institute, Changsha 410125);A Prelminary Study on the Characters of Bundle and Its Relation to the Grain Plumpness in Intersubspecific Hybrid Rice[J];Journal of Hubei Agricultural College;1992-02
9 Zheng Fuyu (Second Rice Institute,Heilongjiang Academy of Agr. sci.);Effect of Spikelets upon Secondary Rachis Branch on Yield of Rice[J];HEILONGJIANG AGRICULTURAL SCIENCE;1997-04
10 Wu Zhenqiu Li Hongyan Peng Xinhai;A STUDY OF THE RELATIONSHIP BETWEEN MATABOLIC ACTIVITY IN ROOTS AND EARLY AGING OF HYBRID RICE[J];;1987-S1
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