激光生物学报
激光生物學報
격광생물학보
ACTA LASER BIOLOGY SINICA
2009年
6期
805-809
,共5页
徐孟亮%陈志%肖媛%崔延春%徐国云%夏新界
徐孟亮%陳誌%肖媛%崔延春%徐國雲%夏新界
서맹량%진지%초원%최연춘%서국운%하신계
普通野生稻%水稻%耐冷性%净光合速率%叶绿素荧光参数
普通野生稻%水稻%耐冷性%淨光閤速率%葉綠素熒光參數
보통야생도%수도%내랭성%정광합속솔%협록소형광삼수
O. rufipogon Griff.%O. sativa L.%cold tolerance%net photosynthesis rate%chlorophyll fluorescence parameters
以耐冷性强弱不同的栽培稻为参比,通过自然冷胁迫与(或)人工冷处理,比较了茶陵野生稻与不同类型栽培稻经冷胁迫后的秧苗成活率、净光合速率和光系统Ⅱ光化学量子效率的变化,对茶陵野生稻苗期耐冷性作出评估.结果表明:经冷胁迫后,茶陵野生稻上述指标值的变化小于典型籼稻和爪哇稻,大于典型粳稻.说明茶陵野生稻苗期耐冷性强于籼稻和爪哇稻,但弱于粳稻.
以耐冷性彊弱不同的栽培稻為參比,通過自然冷脅迫與(或)人工冷處理,比較瞭茶陵野生稻與不同類型栽培稻經冷脅迫後的秧苗成活率、淨光閤速率和光繫統Ⅱ光化學量子效率的變化,對茶陵野生稻苗期耐冷性作齣評估.結果錶明:經冷脅迫後,茶陵野生稻上述指標值的變化小于典型秈稻和爪哇稻,大于典型粳稻.說明茶陵野生稻苗期耐冷性彊于秈稻和爪哇稻,但弱于粳稻.
이내랭성강약불동적재배도위삼비,통과자연랭협박여(혹)인공랭처리,비교료다릉야생도여불동류형재배도경랭협박후적앙묘성활솔、정광합속솔화광계통Ⅱ광화학양자효솔적변화,대다릉야생도묘기내랭성작출평고.결과표명:경랭협박후,다릉야생도상술지표치적변화소우전형선도화조왜도,대우전형갱도.설명다릉야생도묘기내랭성강우선도화조왜도,단약우갱도.
To assess the cold tolerance of Chaling wild rice (Oryza rufipogon Griff.) at seedling stage, the changes of seedling survival rate, net photosynthesis rate and photon quantum efficiency of PSⅡ after natural and/or artificial cold stress were compared among Chaling wild rice and different subspecies cultivars which were taken as controls.The results indicate that the changes of above indexes of Chaling wild rice were significantly less than those of typical indica and javanica cultivars, but higer than those of typical japonica cultivars.Based on the above results, it is concluded that the cold tolerance of Chaling wild rice at seedling stage is stronger than that of indica and javanica cultivars, but weaker than that of japonica cultivars.
