温度、光照对苦荞麦种子萌发、幼苗产量及品质的影响

以苦荞麦'黑丰一号'种子为材料,研究不同温度对种子萌发的影响;采用2因素3水平设计,研究不同温度(A1,A2和A3分别为20,25和30℃)和光照强度(B1,B2和B3分别为1,3和5×103lx)对幼苗产量及品质的影响.结果表明:苦荞麦种子萌发的适宜温度为25℃;因素A,B和A*B对幼苗产量、Vc和黄酮含量的影响均达显著水平(p≤0.05);对幼苗产量影响最好的水平组合是A2B1和A2B2,对幼苗Vc和黄酮含量影响最好的水平组合分别是A3B1和A3B2.在苦荞麦幼苗生长的不同阶段,应进行不同的温光控制,以提高产量与品质.

Effects of Temperature and Light on Seed Germination and Seedling Yield and Quality of Tartary Buckwheat (Fagopyrum tartaricum)

The seeds of tartary buckwheat (Fagopyrum tartaricum) variety 'Heifeng No. 1' were used as experimental material in an experiment to study the effects of different temperatures (A_1, A_2 and A_3, which were 20, 25 and 30 ℃, respectively) and light intensity (B_1, B_2 and B_3, which were 1, 3 and 5×10~3 lx, respectively) on its seed germination and seedling yield and quality. The results showed that 25℃ was suitable for seed germination; the factors A, B and A * B bad significant effects on the yield and contents of vitamin C and flavonoids of the seedlings (p≤0.05). The optimum combinations were A_2B_1 and A_2B_2 for seedling yield and A_3B_1 and A_3B_2 for vitamin C and flavonoid contents of the seedlings. To improve seedling yield and quality of tartary buckwheat, the levels of temperature and light intensity should be controled depending on different growth stages.