@article{oai:ishikawa-pu.repo.nii.ac.jp:00000073,
 author = {塚口, 直史 and TSUKAGUCHI, Tadashi},
 journal = {石川県立大学年報, [Ishikawa Prefectural University] Annual Report},
 month = {Mar},
 note = {The land and climate in most part of Japan are suitable for rice cultivation. Rice plants can grow in the paddy field condition, in which roots are exposed to anoxic environments. Due to its soil chemical characteristics, paddy field has high productivity and crop production in paddy field is extremely sustainable. One of the environmental factors which reduce yield or quality of rice in Japan is temperature in summertime, in which rice grains are filled. Extreme high temperatures cause male sterility. Though not so high temperature, daily temperature higher than 25 ℃ cause chalky kernels, which reduce the market value of rice. Researchers are working for developing tolerant varieties and technologies which reduce the occurrence of chalky kernels.},
 pages = {6--9},
 title = {日本にやさしいイネの話},
 volume = {22},
 year = {2011},
 yomi = {ツカグチ, タダシ}
}