摘要
为提高糜子抗倒伏能力,利用遮雨棚和水分控制池进行糜子控制水分试验,研究不同水分条件对糜子抗倒伏指标及产量的影响。结果表明:在营养生长阶段,提高土壤水分含量能显著提高齐黍1号糜子产量、株高、根干重等指标,但抗折力和生物产量并没有得到显著提高,因而倒伏系数并没有显著提高,抗倒伏能力没有降低;降低土壤含水量,齐黍1号糜子产量、株高、根干重、茎秆抗折力等指标没有显著降低,但生物产量有所下降,倒伏系数有所降低,抗倒伏能力提高。在生殖生长阶段,提高土壤水分含量能显著提高齐黍1号糜子籽实产量和生物产量,但糜子株高、根干重、抗折力并没有显著提高,导致倒伏系数显著提高,抗倒伏能力降低;在干旱胁迫条件下,齐黍1号糜子的产量、根干重、生物产量指标没有显著降低,株高、抗折力、倒伏系数指标有所降低,抗倒伏能力有所提高。
In order to improve lodging resistance of broomcorn millet,the experiment of water control by millet was carried out by using shelter and water control pond,we studied the effect of water conditions on lodging index and yield of broomcorn millet.The results showed that at the stage of vegetative growth,increasing soil moisture content could significantly increase the yield,plant height and root dry weight,the lodging coefficient did not increase significantly and lodging resistance did not decrease;Reducing soil water content,biological yield decreased,lodging coefficient decreased and lodging resistance improved.At the stage of reproductive growth,increasing soil moisture content could significantly increase the yield and biological yield,lodging coefficient improved and lodging resistance decreased;Reducing soil water content,the index of plant height,bending resistance and lodging coefficient decreased,lodging resistance improved.
作者
王宇先
WANG Yu-xian(Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences,Qiqihar 161006,China)
出处
《黑龙江农业科学》
2019年第10期18-21,共4页
Heilongjiang Agricultural Sciences
基金
国家谷子高粱产业技术体系(CARS-07-06B)
齐齐哈尔市科技局农业科技攻关项目(NYGG-201910)
关键词
糜子
倒伏
产量
broomcorn millet
lodging index
yield
