The above-mentioned results indicated that LM21 carbon metabolism characteristic was superior to YN15.That was physiology foundation for weight per 1000 kernels and number of kernels per spike of YN15 less than notably LM21.

• 以上结果都表明鲁麦21的碳代谢特性优于烟农15，这也是鲁麦21的穗粒数和千粒重显著大于烟农15的生理基础。