Premium
Beeinflussung der Assimilatspeicherungsprozesse in der Sommergerstenähre durch Kinetinbehandlungen
Author(s) -
Aufhammer W.,
Solansky S.
Publication year - 1976
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19761390411
Subject(s) - leaf blade , kinetin , biology , flag (linear algebra) , horticulture , agronomy , mathematics , explant culture , biochemistry , pure mathematics , in vitro , algebra over a field
Effect of kinetin treatments on the accumulation of assimilates in the ears of spring barley Using individual plants of spring barley, cultivar Emir, during the grain‐filling period the attempt was made to increase the production of assimilates and their storage in the ear by exactly timed and located application of kinetin solution. The production of assimilates in the flag leaf and their distribution were controlled by 14 CO 2 ‐labelling. The experiments showed the following results: 1. Treatments of the whole ear or the growing grain respectively with kinetin solution increased the ability of the ear to attract assimilates and increased the storage of assimilates, formed in the flag leaf. Moreover an increase in the assimilation rate of the flag leaf could be observed. 2. Treatments of the flag leaf blade with kinetin solution induced retention‐effects of assimilates in this organ. After a temporary depression a distinct and continuous increase of the assimilation rate became apparent. 3. After treatments of the ear (resp. the grains) as well as after treatments of the flag leaf increasing yields were achieved as the result of increasing thousand‐kernel‐weights. The results are discussed under physiological and yielding aspects.