1 材料与方法
1.1 材料
1.2 方法
1.3 数据处理
2 结果与分析
2.1 对鲜薯产量的影响
图3 不同种茎排布处理对鲜薯产量的影响不同小写字母表示处理间差异显著(P<0.05);T1:平放顺向对称,T2:平放顺向交错,T3:平放斜向对称,T4:平放斜向交错,T5:斜插反向对称,T6:斜插反向交错。 Fig. 3 Effects on cassava fresh root yield among different stake layout treatments Different lowercase letters mean significant difference among treatments (P<0.05). T1: Horizontal-orthodromic-symmetrical; T2: Horizontal-orthodromic-interlace; T3: Horizontal-slant- symmetrical; T4: Horizontal-slant-interlace; T5: Inclined-reverse- symmetrical; T6: Inclined-reverse-interlace. |
2.2 对薯径、薯长、薯径/薯长比值的影响
图4 不同种茎排布处理对薯径、薯长、薯径/薯长比值的影响不同小写字母表示处理间差异显著(P<0.05);T1:平放顺向对称,T2:平放顺向交错,T3:平放斜向对称,T4:平放斜向交错,T5:斜插反向对称,T6:斜插反向交错。 Fig. 4 Effects on diameter, length and diameter/length ratio of cassava storage root among different stake layout treatments Different lowercase letters mean significant difference among treatments (P<0.05). T1: Horizontal-orthodromic-symmetrical; T2: Horizontal-orthodromic-interlace; T3: Horizontal-slant-symmetrical; T4: Horizontal-slant-interlace; T5: Inclined-reverse-symmetrical; T6: Inclined-reverse-interlace. |
2.3 对结薯半幅宽的影响
图5 不同种茎排布处理对结薯的行向半幅宽、垂直行向半幅宽的影响不同小写字母表示处理间差异显著(P<0.05);T1:平放顺向对称,T2:平放顺向交错,T3:平放斜向对称,T4:平放斜向交错,T5:斜插反向对称,T6:斜插反向交错。 Fig. 5 Effects on half width along row and across row of cassava storage root among different stake layout treatments Different lowercase letters mean significant difference among treatments (P<0.05). T1: Horizontal-orthodromic-symmetrical; T2: Horizontal-orthodromic-interlace; T3: Horizontal-slant-symmetrical; T4: Horizontal-slant-interlace; T5: Inclined-reverse-symmetrical; T6: Inclined-reverse-interlace. |
2.4 对不同垂直行向半幅宽薯数占比、鲜薯产量占比和鲜薯产量的影响
图6 2018年不同种茎排布处理对不同垂直行向半幅宽范围薯数占比、鲜薯产量占比及鲜薯产量的影响不同小写字母表示处理间差异显著(P<0.05);T1:平放顺向对称,T2:平放顺向交错,T3:平放斜向对称,T4:平放斜向交错,T5:斜插反向对称,T6:斜插反向交错。 Fig. 6 Effects on root number proportion, fresh root yield proportion and the fresh root yield of cassava storage root among different stake layout treatments, which was local in different half width across row in 2018 Different lowercase letters mean significant difference among treatments (P<0.05). T1: Horizontal-orthodromic-symmetrical; T2: Horizontal-orthodromic-interlace; T3: Horizontal-slant-symmetrical; T4: Horizontal-slant-interlace; T5: Inclined-reverse-symmetrical; T6: Inclined-reverse-interlace. |
2.5 对不同层深薯数占比、鲜薯产量占比和鲜薯产量的影响
图7 2018年不同种茎排布处理对不同层深薯数占比、鲜薯产量占比及鲜薯产量的影响不同小写字母表示处理间差异显著(P<0.05);T1:平放顺向对称,T2:平放顺向交错,T3:平放斜向对称,T4:平放斜向交错,T5:斜插反向对称,T6:斜插反向交错。 Fig. 7 Effects on root number proportion, fresh root yield proportion and the fresh root yield of cassava storage root among different stake layout treatments under different soil depth in 2018 Different lowercase letters mean significant difference among treatments (P<0.05). T1: Horizontal-orthodromic-symmetrical; T2: Horizontal-orthodromic-interlace; T3: Horizontal-slant-symmetrical; T4: Horizontal-slant-interlace; T5: Inclined-reverse-symmetrical; T6: Inclined-reverse-interlace. |
