河南农业科学
河南農業科學
하남농업과학
JOURNAL OF HENAN AGRICULTURAL SCIENCES
2013年
12期
28-32
,共5页
高汝勇%时丽冉%崔兴国%李明哲
高汝勇%時麗冉%崔興國%李明哲
고여용%시려염%최흥국%리명철
谷子%抗旱性%种子萌发%幼苗生长%模糊隶属函数
穀子%抗旱性%種子萌髮%幼苗生長%模糊隸屬函數
곡자%항한성%충자맹발%유묘생장%모호대속함수
Setaria italica%drought resistance%seed germinnation%seedling growth%fuzzy sub-ordinate function
为鉴定黑龙港地区12个谷子品种的抗旱性,以10%、15%、20%3种质量分数的聚乙二醇(PEG )6000模拟干旱胁迫,研究各品种的发芽率、发芽指数、根长、苗高、鲜质量、活力指数,并用模糊隶属函数进行了综合评价。结果表明,3种质量分数的干旱胁迫对以上6个指标均有明显的抑制作用,且随着PEG质量分数的升高抑制作用增强。10%、15%、20% PEG 3种干旱胁迫处理对谷子种子发芽率的抑制率分别为4%、11%、26%,发芽指数抑制率分别为12%、24%、44%,根长抑制率分别为21%、44%、61%,苗高抑制率分别为8%、19%、39%,鲜质量抑制率分别为22%、34%、51%,活力指数抑制率分别为31%、50%、73%。干旱胁迫主要影响谷子种子的发芽速率和幼苗的健壮程度。抗旱性评价结果表明,赤谷16是强抗品种,晋谷31、冀谷19、豫谷1号、晋谷51、龙谷27、晋谷52、衡谷0902、龙谷11属于较抗品种,衡谷10号、长农38属于弱抗品种,晋谷46属于不抗品种。
為鑒定黑龍港地區12箇穀子品種的抗旱性,以10%、15%、20%3種質量分數的聚乙二醇(PEG )6000模擬榦旱脅迫,研究各品種的髮芽率、髮芽指數、根長、苗高、鮮質量、活力指數,併用模糊隸屬函數進行瞭綜閤評價。結果錶明,3種質量分數的榦旱脅迫對以上6箇指標均有明顯的抑製作用,且隨著PEG質量分數的升高抑製作用增彊。10%、15%、20% PEG 3種榦旱脅迫處理對穀子種子髮芽率的抑製率分彆為4%、11%、26%,髮芽指數抑製率分彆為12%、24%、44%,根長抑製率分彆為21%、44%、61%,苗高抑製率分彆為8%、19%、39%,鮮質量抑製率分彆為22%、34%、51%,活力指數抑製率分彆為31%、50%、73%。榦旱脅迫主要影響穀子種子的髮芽速率和幼苗的健壯程度。抗旱性評價結果錶明,赤穀16是彊抗品種,晉穀31、冀穀19、豫穀1號、晉穀51、龍穀27、晉穀52、衡穀0902、龍穀11屬于較抗品種,衡穀10號、長農38屬于弱抗品種,晉穀46屬于不抗品種。
위감정흑룡항지구12개곡자품충적항한성,이10%、15%、20%3충질량분수적취을이순(PEG )6000모의간한협박,연구각품충적발아솔、발아지수、근장、묘고、선질량、활력지수,병용모호대속함수진행료종합평개。결과표명,3충질량분수적간한협박대이상6개지표균유명현적억제작용,차수착PEG질량분수적승고억제작용증강。10%、15%、20% PEG 3충간한협박처리대곡자충자발아솔적억제솔분별위4%、11%、26%,발아지수억제솔분별위12%、24%、44%,근장억제솔분별위21%、44%、61%,묘고억제솔분별위8%、19%、39%,선질량억제솔분별위22%、34%、51%,활력지수억제솔분별위31%、50%、73%。간한협박주요영향곡자충자적발아속솔화유묘적건장정도。항한성평개결과표명,적곡16시강항품충,진곡31、기곡19、예곡1호、진곡51、룡곡27、진곡52、형곡0902、룡곡11속우교항품충,형곡10호、장농38속우약항품충,진곡46속우불항품충。
In order to study the drought resistance of 12 Setaria italica varieties in Heilonggang area ,the germination percentage ,germination index ,and root length ,shoot height ,fresh weight , vigor index were measured under the simulated drought conditions with PEG-6000 (10% ,15%and 20% ) ,and the ability of drought resistance was comprehensively evaluated using the fuzzy subordinate function .The results showed that the six indicators measured all declined in the three drought-sress treatments ,and the inhibition effect was enhanced as the PEG concentration in-creased .With regard to the three drought treatments (10% ,15% ,20% ) ,the inhibition rate was , respectively ,4% ,11% and 26% for germination percentage ,12% ,24% and 44% for germination index ,21% ,44% and 61% for root length ,8% ,19% and 39% for shoot height ,22% ,34% and 51% for fresh weight ,and 31% ,50% and 73% for vigor index .The drought stress mainly inf-luenced the germination rate and the robust degree of seedlings .Chigu16 was a high drought-re-sistant variety .Jingu31 ,Jigu19 ,Yugu 1 ,Jingu 51 ,Longgu 27 ,Jingu 52 ,Henggu 0902 and Longgu 11 belonged to medium drought-resistant varieties .Henggu 10 and Changnong 38 were weak drought-resistant varieties ,while Jingu 46 was a drought-sensitive variety .