摘要
为筛选出适合北疆临冬播小麦品种,采用田间试验,比较了18个小麦品种的出苗率、叶面积指数、干物质积累及产量等。结果表明,越冬期4cm最低地温为-7.93℃条件下,春小麦品种平均出苗率(53.23%)显著高于冬小麦品种(34.20%),宁春系列品种的平均出苗率(60.83%)高于新春系列品种(42.67%);冬小麦品种的平均生育期较春小麦品种长6d且晚熟,新春系列品种的平均生育期(103d)长于农麦和永良系列品种(88d)及宁春系列品种(92d)。新春48号和新冬41号出苗率分别45.60%和52.00%,基本苗数分别为342.00万和390.00万/hm^(2),穗数分别为459.00万和365.00万/hm^(2),穗粒数分别为34.90和33.84;叶面积指数峰值分别为3.96和3.52;总光合势分别为247.00和231.21(m^(2)·d)/m^(2),干物质积累总量和经济系数均较高;生育期分别为104和106d;产量均显著高于其他品种。综合各项指标,新春48号和新冬41号适合北疆地区临冬播种。
In order to choose the wheat varieties suitable for planting in the approaching winter in northern Xinjiang,field experiments were conducted to systematically compare the emergence rate,leaf area index,dry matter accumulation and yield of 18 wheat varieties.The results showed that the average emergence rate of spring wheat varieties (53.23%) was significantly higher than that of winter wheat varieties (34.20%) and the average emergence rate of Ningchun series varieties (60.83%) was higher than that of Xinchun series varieties (42.67%)under the lowest geothermal temperature was-7.93℃.The average growth period of winter varieties was 6d later ripening than that of spring varieties.The average growth period of the spring wheat ratieties (103d) was longer than that of the Nongmai and Yongliang varieties (88d) and the Ningchun varieties (92d).The emergence rates of Xinchun 48 and Xindong 41 were 45.60%and 52.00%,respectively.The basic seedling number were 3.42×10^(6)/ha^(2) and 3.90×10^(6)/ha^(2),the number of ears were 4.59×10^(6)/ha^(2) and 3.65×10^(6)/ha^(2),and the number of spikes were 34.90 and33.84,respectively;the leaf area index peakes were 3.96 and 3.52;the total photosynthetic potentials were 247.00and 231.21(m^(2)·d)/m^(2).The dry matter weight,economic coefficients,and yield of Xinchun 48 and Xindong 41 were higher than the other varieties,the growth periods were 104 and 106d,respectively.According to the results of this study,Xinchun 48 and Xindong 41 were suitable for planting in the approaching winter in northern Xinjiang.
作者
苏文平
王欢
艾木拉姑丽·库尔班
赵鑫琳
薛丽华
章建新
刘俊
孙诗仁
Su Wenping;Wang Huan;Aimulaguli·Kuerban;Zhao Xinlin;Xue Lihua;Zhang Jianxin;Liu Jun;Sun Shiren(College of Agronomy,Xinjiang Agricultural University,Urumqi 830052,Xinjiang,China;Grain Crops Research Institute of Xinjiang Academy of Agricultural Sciences,Urumqi 830091,Xinjiang,China)
出处
《作物杂志》
北大核心
2021年第6期108-114,共7页
Crops
基金
新疆自治区区域协同创新专项(科技援疆计划)(2019E0258)
国家自然科学基金(31760364)
新疆农业科学院科技创新重点培育专项(kjkcpy-003)。
关键词
临冬播种
小麦品种
出苗率
生育特性
产量
Planting in the approaching winter
Wheat varieties
Emergence rate
Growth characteristics
Yield
