干旱对花生苗期生长发育影响的研究

TheEffectofDroughtontheGrowthandDevelopment ofSeedlingStageinGroundnut

试验结果表明 ,在播后控水 36d情况下 ,品种间均未发生萎蔫 ,但茎叶生长和花芽分化均受到不同程度的影响 ,且两者受影响程度无相关性 ;茎叶表现 3种形式即轻微受影响、生长缓慢、停止生长 ,其分别占供试材料的 2 0 %、5 0 %、30 % ;花芽败育率最高的发生在茎叶停止生长和轻微受影响之中 ,高达1 0 0 %和 6 1 .1 % ,而败育率最低的发生在生长缓慢之中 ;品种间受影响程度是 :97-88<鲁花 1 1 <880 2<海花 1号 <鲁花 1 1 (辐 ) <鲁花 1 0 <白沙 1 0 1 6 <鲁花 3<鲁花 1 4<81 30 ,97-88耐旱性最强 ,花芽败育率仅有 6 .7% ,81 30耐旱性最差 ,花芽败育率高达 1 0 0 %。

Thistestshowedundertheconditionofcontrolledwaterfor 3 6daysaftersowing ,everyva rietydidn’twilt,buttheirstemsandleavesgrowthanddifferentiveofflowerbudwereaffectedindif ferentdegrees.theeffectsonthestemsandleaveswere:affectedslightly ;growingslowly ;growingre tardativelyandseperatelymadeup 2 0 % ,50 % ,3 0 %ofallthematerialstested ;forthevarietieswhich stemsandleaveswereaffectedslightlyofgrewretardatively ,theirflowerabortionratewasthehighest andseperatelyupto 1 0 0 %and 61.1 % ,whileforthegrowingslowlyone,itsflowerabortionratewas thelowest.theeffectdegreeonthevarietiestestedwas:97-88<Luhua 11 <880 2 <Haihua 1 < Luhua 11 (redioactive) <Luhua 1 0 <Baisha 1 0 1 6 <Luhua 3 <Luhua 14<81 3 0 ,amongofthem ,97- 88hasthestrongestdroughthardinessanditsflowerabortionratewasonly 6 .7% ,81 3 0hastheworst droughthardinessanditsflowerabortionratewasupto 1 0 0 % .