湖南农业科学
湖南農業科學
호남농업과학
HUNAN AGRICULTURAL SCIENCES
2014年
7期
14-17
,共4页
张艳贵%宁金花%谢娜%刘斌彧
張豔貴%寧金花%謝娜%劉斌彧
장염귀%저금화%사나%류빈욱
水稻%绿叶数%高位分蘖,产量结构
水稻%綠葉數%高位分蘗,產量結構
수도%록협수%고위분얼,산량결구
rice%number of green leaves%tillering at high position%yield structure
为明确水稻分蘖期的耐淹能力，以常规稻湘早籼45为供试材料，在分蘖期设计不同淹水深度及淹水持续时间的淹涝胁迫试验，观测绿叶数、株高、茎数、生育期、产量结构的变化情况。试验结果表明：同一生育期，同一淹水深度，绿叶数的变化和淹水时间负相关，不同淹水深度2/3淹较全淹明显；株高变化，同一生育期，不同淹水深度，全淹较2/3淹明显；茎的变化，同一生育期，全淹高位分蘖率高于2/3淹；生育期的变化，淹水时间5 d以上，2/3淹较全淹长；同一生育期，全淹较2/3淹对产量的影响大。
為明確水稻分蘗期的耐淹能力，以常規稻湘早秈45為供試材料，在分蘗期設計不同淹水深度及淹水持續時間的淹澇脅迫試驗，觀測綠葉數、株高、莖數、生育期、產量結構的變化情況。試驗結果錶明：同一生育期，同一淹水深度，綠葉數的變化和淹水時間負相關，不同淹水深度2/3淹較全淹明顯；株高變化，同一生育期，不同淹水深度，全淹較2/3淹明顯；莖的變化，同一生育期，全淹高位分蘗率高于2/3淹；生育期的變化，淹水時間5 d以上，2/3淹較全淹長；同一生育期，全淹較2/3淹對產量的影響大。
위명학수도분얼기적내엄능력，이상규도상조선45위공시재료，재분얼기설계불동엄수심도급엄수지속시간적엄로협박시험，관측록협수、주고、경수、생육기、산량결구적변화정황。시험결과표명：동일생육기，동일엄수심도，록협수적변화화엄수시간부상관，불동엄수심도2/3엄교전엄명현；주고변화，동일생육기，불동엄수심도，전엄교2/3엄명현；경적변화，동일생육기，전엄고위분얼솔고우2/3엄；생육기적변화，엄수시간5 d이상，2/3엄교전엄장；동일생육기，전엄교2/3엄대산량적영향대。
In order to determine the waterlogging tolerance ability of rice at tillering stage, taking normal rice variety Xiangzaoxian45 as experimental material to conduct waterlogging stress experiment which designed with different waterlogging depths and waterlogging lasting time at tillering stage. Through observed the changes in number of green leaves, plant height, stem number, growth period, yield structure, the results indicated that for changes in number of green leaves, if the rice was at the same growth period and with the same waterlogging depth, it negatively correlated with waterlogging time, if the rice was at the same growth period but with the different waterlogging depths, it was more obvious in treatment with 2/3 depth of waterlogging in comparison with treatment with complete waterlogging; for changes in plant height, if the rice at the same growth period but with different waterlogging depths, it was more obvious in treatment with complete waterlogging in comparison with treatment with 2/3 depth of waterlogging; for changes in stem, if rice was at the same period but with different waterlogging depths, the tillering rate at high position in treatment with complete waterlogging was higher than that in treatment with 2/3 depth of waterlogging; for changes in growth period, if waterlogging time was more than 5 d, the growth period in treatment with 2/3 depth of waterlogging was longer than that in treatment with complete waterlogging; if the rice at the same growth period, the inlfuence of treatment with complete waterlogging on rice yield was more in comparison with treatment with 2/3 depth of waterlogging.
