湖南农业大学学报（自然科学版）
湖南農業大學學報（自然科學版）
호남농업대학학보（자연과학판）
JOURNAL OF HUNAN AGRICULTURAL UNIVERSITY(NATURAL SCIENCES)
2009年
6期
602-605
,共4页
棉花%营养液漂浮育苗%生理生化特性
棉花%營養液漂浮育苗%生理生化特性
면화%영양액표부육묘%생리생화특성
cotton%floating nursing seedling in nutrient water-bed%physiological and biochemical characteristics
以农杂66为材料,研究了营养液漂浮育苗和营养钵育苗移栽棉生理生化特性的差异.结果表明:与营养钵育苗(对照)相比,营养液漂浮育苗有效地提高了移栽棉根系的TTC还原强度,棉株在苗期、蕾期、初花期、盛花期、铃期和吐絮期叶片的叶绿素含量分别比对照增加1.2%、19.2%、20.0%、10.6%、22.6%和13.6%,可溶性蛋白质含量分别比对照增加5.6%、12.3%、5.5%、8.7%、8.2%和4.1%,可溶性糖含量分别比对照增加3.1%、8.3%、8.1%、4.0%、3.2%和3.8%,叶片光合效率得到改善.在棉花整个生长发育时期,营养液漂浮育苗移栽棉叶片的超氧化物歧化酶(SOD)和过氧化物酶(POD)活性均明显高于对照,膜脂过氧化产物丙二醛(MDA)含量均低于对照(除苗期外).营养液漂浮育苗移栽棉叶片的游离脯氨酸含量逐渐增加,游离氨基酸含量高于对照,能有效改善棉株的生理代谢.
以農雜66為材料,研究瞭營養液漂浮育苗和營養缽育苗移栽棉生理生化特性的差異.結果錶明:與營養缽育苗(對照)相比,營養液漂浮育苗有效地提高瞭移栽棉根繫的TTC還原彊度,棉株在苗期、蕾期、初花期、盛花期、鈴期和吐絮期葉片的葉綠素含量分彆比對照增加1.2%、19.2%、20.0%、10.6%、22.6%和13.6%,可溶性蛋白質含量分彆比對照增加5.6%、12.3%、5.5%、8.7%、8.2%和4.1%,可溶性糖含量分彆比對照增加3.1%、8.3%、8.1%、4.0%、3.2%和3.8%,葉片光閤效率得到改善.在棉花整箇生長髮育時期,營養液漂浮育苗移栽棉葉片的超氧化物歧化酶(SOD)和過氧化物酶(POD)活性均明顯高于對照,膜脂過氧化產物丙二醛(MDA)含量均低于對照(除苗期外).營養液漂浮育苗移栽棉葉片的遊離脯氨痠含量逐漸增加,遊離氨基痠含量高于對照,能有效改善棉株的生理代謝.
이농잡66위재료,연구료영양액표부육묘화영양발육묘이재면생리생화특성적차이.결과표명:여영양발육묘(대조)상비,영양액표부육묘유효지제고료이재면근계적TTC환원강도,면주재묘기、뢰기、초화기、성화기、령기화토서기협편적협록소함량분별비대조증가1.2%、19.2%、20.0%、10.6%、22.6%화13.6%,가용성단백질함량분별비대조증가5.6%、12.3%、5.5%、8.7%、8.2%화4.1%,가용성당함량분별비대조증가3.1%、8.3%、8.1%、4.0%、3.2%화3.8%,협편광합효솔득도개선.재면화정개생장발육시기,영양액표부육묘이재면협편적초양화물기화매(SOD)화과양화물매(POD)활성균명현고우대조,막지과양화산물병이철(MDA)함량균저우대조(제묘기외).영양액표부육묘이재면협편적유리포안산함량축점증가,유리안기산함량고우대조,능유효개선면주적생리대사.
Nongza66 were employed for studying the regularities of physiological and biochemical characteristics of cotton transplants in the field by comparing the difference between the floating nursing seedling in nutrient water-bed (FNSNWB) and nutritive bowls nursing seedling (NBNS). The results showed that compared with NBNS method,by FNSNWB method,firstly the TTC reductive intensity of root system was strengthened,secondly,contents of leaf chlorophyll were increased by 1.2%,19.2%,20.0%,10.6%,22.6% and 13.6% from seedling to boll opening stage,respectively,thirdly,during cotton whole growth period,the content of soluble protein in leaves of cotton transplants were increased by 5.6%,12.3%,5.5%,8.7%,8.2% and 4.1%,respectively;and fourhtly,contents of soluble sugar were increased by 3.1%,8.3%,8.1%,4.0%,3.2% and 3.8% from seedling to boll opening stage,respectively,In short,photosynthetic efficiency of cotton leaves could be improved by FNSNWB. During different stages of development,the activities of superoxide dismutase (SOD) and peroxidase (POD) in cotton leaves by FNSNWB were significantly higher than that of the NBNS,but accumulation of malondiadehyde(MDA) decreased. Meanwhile,contents of proline and free amino acid of cotton leaves were increased by FNSNWB. These results demonstrated that the FNSNWB could effectively improve physiological metabolisms of cotton plant.
