摘要
以马铃薯品种克新1号为材料,设对照、保水剂穴施、沟施和拌种4个处理,分析马铃薯形态特征、渗透调节物质及产量的变化。结果表明,株高随生育时期的推进逐渐增大,至淀粉积累期时,穴施处理的株高较高,是对照处理的1.21倍;植株鲜质量、干质量具有相似的变化趋势,随生育时期的推进均逐渐增加,块茎形成期后增加较为迅速,淀粉积累期时加施保水剂处理的生物量均高于对照处理。脯氨酸含量随生育时期的推进呈上升趋势,淀粉积累期时,拌种处理脯氨酸含量比对照大11.19%,其他处理均低于对照。叶片中可溶性糖含量先逐渐升高,而后下降,逐渐向薯块中转移。叶绿素含量呈单峰曲线变化。穴施处理产量最高,高出对照8.37个百分点,其次是沟施,拌种处理产量较低。加施保水剂处理基本较利于旱作马铃薯增产。
The usage of water absorbent on the relationship of morphological characters,osmoregulation substances and yield were studied using potato variety Kexin 1.Four treatments were consisted,including control group（CK）,hole pattern,sink pattern and seed dressing with water absorbent.It was concluded that plant height showed an increasing tendency with the growth duration,and that of hole pattern was 1.21 times more than CK during the starch accumulation period.The plant fresh weight and dry weight presented a similar increasing tendency,after tube initiation stage they increased quickly,and the weight of adding water absorbent treatments were relatively higher than that of CK at starch accumulation stage.Proline contents presented an increasing tendency,and its content of seed dressing with water absorbent treatment was 11.19% higher than CK,while other treatments were lower than CK.The content of soluble sugar showed increasing first,and then reduced,because of transferring into the tubes.The content of chlorophyll presented an odd peak curve.The hole pattern obtained the highest yield,which was 8.37 percent more than CK,and sink pattern followed,but seed dressing with water absorbent treatment gained lower yield.Adding water absorbent produced more potato yield in the dry land mostly.
出处
《西北农业学报》
CAS
CSCD
北大核心
2011年第10期58-63,共6页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家公益性行业(农业)科研专项(201003053-4)
水利部科技推广项目(TG1144)
关键词
马铃薯
保水剂
渗透调节物质
叶绿素
产量
Potato
Water absorbent
Osmoregulation substance
Chlorophyll
Yield
