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吉龙99在适应区出苗至成熟生育日数为108d左右,需≥10℃活动积温2 000℃左右。该品种幼苗期第一叶鞘紫色,叶片绿色,茎绿色。株高248cm,穗位高93cm,成株可见12片叶。果穗圆筒形,穗轴粉色,穗长18.1cm,穗粗5.0cm,穗行数14~16行,籽粒硬粒型、黄色,百粒重36.2g。吉龙99品质优良、耐密,高产优势明显,茎秆坚韧,根系发达,抗旱、抗倒伏;抗玉米螟、大斑病、小斑病,丝黑穗病,耐低温。该品种适应性广,籽粒饱满,封尖好,果穗均匀,轴硬不易碎,籽粒
Jilong 99 in the adaptive zone emergence to mature birth days is about 108d, need ≥ 10 ℃ activity accumulated temperature of about 2 000 ℃. The variety of seedling first leaf sheath purple, green leaves, stems green. Plant height 248cm, ear height 93cm, adult plant visible 12 leaves. Ear cylindrical, pink spike, ear length 18.1cm, spike coarse 5.0cm, spike rows 14 to 16 lines, grain hard type, yellow, one hundred weight 36.2g. Jilong 99 has the advantages of good quality, tight tolerance, obvious superiority of high yield, stalk toughness, developed roots, drought resistance and lodging resistance; resistance to corn borer, big spot disease, small spot disease, head smut and low temperature resistance. The varieties of wide adaptability, full grains, a good tip, uniform ears, the shaft is hard and not broken, the grain