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通过对油桃5个品种总根、须根、粗根及抗逆性的调查研究,结果表明:在壤土中4年生油桃5个品种的根型都属于垂直状根系,根系垂直分布在10~100cm。早红2号、瑞光3号、NJN78、早红宝石、NJN72总根量、须根量依次减少,其耐旱、耐瘠薄性依次减弱,而抗风能力由强到弱排序为早红宝石、NJN78、早红2号、NJN72、瑞光3号。总根在20~40cm土层中分布最多,须根早红宝石、瑞光3号、NJN72 3个品种在20~40cm土层中分布最多,其余2个品种在40~60cm土层中分布最多。
The results showed that the root types of 5 varieties of 4 - year nectarines belong to vertical root system in loamy soil, and the root system is vertically distributed in the range of 10 ~ 100cm. The total amount of root and root of NJN78, Zaohong 2, Ruiguang 3, NJN78, early ruby and NJN72 decreased in sequence, and their drought tolerance and infertility decreased in turn, while the wind resistance ability was from strong to weak as early ruby, NJN78, Red 2, NJN72, Ruiguang 3. The distribution of total root in 20 ~ 40cm soil layer was the highest, and that of the three varieties of early root ruby, Ruiguang 3 and NJN72 were most distributed in 20 ~ 40cm soil layer, while the other two varieties were most distributed in 40 ~ 60cm soil layer.