DESIGNING A WHEAT IDEOTYPE WITH INCREASED SINK CAPACITY
DESIGNING A WHEAT IDEOTYPE WITH INCREASED SINK CAPACITY
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DOI：
10.1111/j.1439-0523.1994.tb00689.x
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发表时间：
1994-06-01
期刊：
影响因子：
2
通讯作者：
DENCIC, S
中科院分区：
文献类型：
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作者：
DENCIC, S
在这项调查中，基因型与分支，tetrastichon（两个小穗每节的轴），和正常的穗，以诱导库容量的变化，而高产的国内和国外品种作为其他性状的供体。 这些材料通过单交、回交和高交的方法进行杂交，并通过系谱法选择理想的基因型。 经过10年的育种理想型，其主要特点是一个高度肥沃的正常结构的穗，短秸秆，弯曲的叶片，和减少分蘖，229行进行了比较产量试验。 其中，4个品系的产量和其他性状均上级最高产量标准。 关于库容量的预期变化，在穗长、每穗粒数、每小穗粒数和每穗粒重方面取得了相当大的进展。
In this investigation, genotypes with branched, tetrastichon (two spikelets per node of the rachis), and normal spikes were used in order to induce changes in sink capacity, while high-yielding domestic and foreign varieties served as donors of other traits. These materials were crossed by the methods of single-, back-, and top crossing and the desirable genotypes were selected by the pedigree method. After 10 years of breeding for the desired ideotype, whose main features had been a highly fertile spike of normal structure, short straw, curved leaves, and reduced tillering, 229 lines were tested in comparative yield trials. Among them, four lines were superior in yield and other traits to the highest yielding standards. Regarding the expected changes in sink capacity, considerable progress was made in spike length, number of grains per spike, number of grains per spikelet, and the weight of grains per spike.