草业学报 ›› 2024, Vol. 33 ›› Issue (3): 139-149.DOI: 10.11686/cyxb2023165
• 研究论文 • 上一篇
李妍1,2(), 马富龙1,2, 韩路1,2, 王海珍3()
收稿日期:
2023-05-17
修回日期:
2023-06-19
出版日期:
2024-03-20
发布日期:
2023-12-27
通讯作者:
王海珍
作者简介:
E-mail: whzzky@163.com基金资助:
Yan LI1,2(), Fu-long MA1,2, Lu HAN1,2, Hai-zhen WANG3()
Received:
2023-05-17
Revised:
2023-06-19
Online:
2024-03-20
Published:
2023-12-27
Contact:
Hai-zhen WANG
摘要:
为筛选出适宜新疆南部干旱区种植的紫花苜蓿品种,以美国‘WL’系列6个不同秋眠级苜蓿品种作为研究对象,连续3年调查不同品种的生育期、越冬率、生长速率与初花期的鲜、干草产量、株高、叶茎比、干鲜比,并采用灰色关联度分析法进行综合评价。结果表明:WL358返青最早,WL712最晚;生长速率以WL440最快,WL168最慢,分别为2.30和1.98 cm·d-1。不同品种的株高随种植年限依次递增,随刈割次数依次递减;各茬生长期(至初花期)逐渐缩短,生长速率加快,3年平均株高以WL440最高(90.73 cm),品种间株高无显著差异(除WL343外)。各年份不同茬次叶茎比呈递增趋势,叶茎比以WL168最高(0.69),干鲜比以WL525最高(0.23)。鲜、干草产量随种植年限逐渐增大;3年平均鲜、干草产量均以WL358最高,分别为98.21与21.26 t·hm-2,WL168鲜草产量(76.37 t·hm-2)与WL525干草产量(16.37 t·hm-2)最低。分析结果表明,影响干草产量的各因子依次为生长速率、鲜草产量、干鲜比、株高、单株干重、叶茎比;6个参试品种的综合评价结果为WL358>WL440>WL168>WL343>WL712>WL525。分析认为WL358品种的综合表现好,适宜在南疆地区种植。
李妍, 马富龙, 韩路, 王海珍. 美国‘WL’系列不同秋眠级苜蓿品种在南疆的生产性能与适应性评价[J]. 草业学报, 2024, 33(3): 139-149.
Yan LI, Fu-long MA, Lu HAN, Hai-zhen WANG. Productivity and adaptability of ‘WL’ alfalfa varieties with different fall dormancy in the extremely arid region of Southern Xinjiang[J]. Acta Prataculturae Sinica, 2024, 33(3): 139-149.
品种 Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
返青 Returning green | 返青期 Returning green period | 分枝期 Branching period | 现蕾期 Squaring period | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | |
WL343 | 3-17 | 3-24 | 4-9 | 4-30 | 5-13 (57) | 6-28 (46) | 7-28 (30) | 9-22 (25) |
WL712 | 3-19 | 3-25 | 4-8 | 5-3 | 5-18 (60) | 6-28 (41) | 7-29 (31) | 9-21 (23) |
WL440 | 3-18 | 3-20 | 4-7 | 5-3 | 5-19 (62) | 6-29 (41) | 7-26 (27) | 9-20 (25) |
WL358 | 3-13 | 3-16 | 4-6 | 5-1 | 5-18 (66) | 6-29 (42) | 7-28 (29) | 9-23 (26) |
WL525 | 3-19 | 3-20 | 4-7 | 5-4 | 5-21 (63) | 6-28 (38) | 7-27 (29) | 9-23 (27) |
WL168 | 3-16 | 3-18 | 4-8 | 5-5 | 5-20 (65) | 6-28 (37) | 7-29 (31) | 9-21 (23) |
表1 不同秋眠级紫花苜蓿品种的生育期
Table 1 The comparison of growth period of different fall dormancy alfalfa varieties (月-日Month-day)
品种 Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
返青 Returning green | 返青期 Returning green period | 分枝期 Branching period | 现蕾期 Squaring period | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | 初花期 Early flowering period (d) | |
WL343 | 3-17 | 3-24 | 4-9 | 4-30 | 5-13 (57) | 6-28 (46) | 7-28 (30) | 9-22 (25) |
WL712 | 3-19 | 3-25 | 4-8 | 5-3 | 5-18 (60) | 6-28 (41) | 7-29 (31) | 9-21 (23) |
WL440 | 3-18 | 3-20 | 4-7 | 5-3 | 5-19 (62) | 6-29 (41) | 7-26 (27) | 9-20 (25) |
WL358 | 3-13 | 3-16 | 4-6 | 5-1 | 5-18 (66) | 6-29 (42) | 7-28 (29) | 9-23 (26) |
WL525 | 3-19 | 3-20 | 4-7 | 5-4 | 5-21 (63) | 6-28 (38) | 7-27 (29) | 9-23 (27) |
WL168 | 3-16 | 3-18 | 4-8 | 5-5 | 5-20 (65) | 6-28 (37) | 7-29 (31) | 9-21 (23) |
品种Variety | 绝对生长速率Absolute growth rate (AGR) | 相对生长速率Relative growth rate (RGR) | 平均Average | |||||||
---|---|---|---|---|---|---|---|---|---|---|
第1茬 First cutting | 第2茬 Second cutting | 第3茬 Third cutting | 第4茬 Fourth cutting | 第1茬 First cutting | 第2茬 Second cutting | 第3茬 Third cutting | 第4茬 Fourth cutting | 绝对生长 速率AGR | 相对生长 速率 RGR | |
WL712 | 1.75± 0.28ab | 2.77± 0.34bc | 2.27± 0.25a | 2.39± 1.27a | 0.068± 0.004ab | 0.126± 0.007ab | 0.106± 0.009a | 0.185± 0.180a | 2.29± 0.42a | 0.121± 0.049a |
WL343 | 1.55± 0.26c | 2.80± 0.34b | 2.08± 0.24abc | 1.71± 0.94a | 0.069± 0.003a | 0.126± 0.006ab | 0.104± 0.010a | 0.168± 0.160a | 2.03± 0.56a | 0.117± 0.042a |
WL440 | 1.82± 0.37a | 3.05± 0.40a | 2.19± 0.30ab | 2.15± 1.30a | 0.069± 0.003ab | 0.129± 0.006a | 0.105± 0.010a | 0.181± 0.180a | 2.30± 0.53a | 0.121± 0.047a |
WL358 | 1.71± 0.28abc | 2.91± 0.32ab | 2.06± 0.32bc | 2.16± 1.39a | 0.065± 0.002c | 0.127± 0.006ab | 0.104± 0.011a | 0.182± 0.180a | 2.21± 0.51a | 0.119± 0.049a |
WL525 | 1.60± 0.22bc | 2.83± 0.36b | 2.15± 0.39ab | 1.20± 1.29a | 0.068± 0.003ab | 0.126± 0.006ab | 0.104± 0.011a | 0.177± 0.180a | 2.14± 0.51a | 0.119± 0.046a |
WL168 | 1.76± 0.25ab | 2.56± 0.29c | 1.94± 0.39c | 1.64± 0.70a | 0.067± 0.003ab | 0.124± 0.008b | 0.102± 0.012a | 0.162± 0.150a | 1.98± 0.41a | 0.114± 0.040a |
表2 不同秋眠级紫花苜蓿品种的生长速率
Table 2 The growth rate of different fall dormancy alfalfa varieties (cm·d-1)
品种Variety | 绝对生长速率Absolute growth rate (AGR) | 相对生长速率Relative growth rate (RGR) | 平均Average | |||||||
---|---|---|---|---|---|---|---|---|---|---|
第1茬 First cutting | 第2茬 Second cutting | 第3茬 Third cutting | 第4茬 Fourth cutting | 第1茬 First cutting | 第2茬 Second cutting | 第3茬 Third cutting | 第4茬 Fourth cutting | 绝对生长 速率AGR | 相对生长 速率 RGR | |
WL712 | 1.75± 0.28ab | 2.77± 0.34bc | 2.27± 0.25a | 2.39± 1.27a | 0.068± 0.004ab | 0.126± 0.007ab | 0.106± 0.009a | 0.185± 0.180a | 2.29± 0.42a | 0.121± 0.049a |
WL343 | 1.55± 0.26c | 2.80± 0.34b | 2.08± 0.24abc | 1.71± 0.94a | 0.069± 0.003a | 0.126± 0.006ab | 0.104± 0.010a | 0.168± 0.160a | 2.03± 0.56a | 0.117± 0.042a |
WL440 | 1.82± 0.37a | 3.05± 0.40a | 2.19± 0.30ab | 2.15± 1.30a | 0.069± 0.003ab | 0.129± 0.006a | 0.105± 0.010a | 0.181± 0.180a | 2.30± 0.53a | 0.121± 0.047a |
WL358 | 1.71± 0.28abc | 2.91± 0.32ab | 2.06± 0.32bc | 2.16± 1.39a | 0.065± 0.002c | 0.127± 0.006ab | 0.104± 0.011a | 0.182± 0.180a | 2.21± 0.51a | 0.119± 0.049a |
WL525 | 1.60± 0.22bc | 2.83± 0.36b | 2.15± 0.39ab | 1.20± 1.29a | 0.068± 0.003ab | 0.126± 0.006ab | 0.104± 0.011a | 0.177± 0.180a | 2.14± 0.51a | 0.119± 0.046a |
WL168 | 1.76± 0.25ab | 2.56± 0.29c | 1.94± 0.39c | 1.64± 0.70a | 0.067± 0.003ab | 0.124± 0.008b | 0.102± 0.012a | 0.162± 0.150a | 1.98± 0.41a | 0.114± 0.040a |
年份Years | 茬次Cutting | WL358 | WL440 | WL712 | WL168 | WL343 | WL525 |
---|---|---|---|---|---|---|---|
2020 | 第1茬First cutting | 62.49±11.22b | 60.66±8.31b | 62.63±9.21b | 64.03±10.54b | 54.14±8.32c | 77.81±9.84a |
2021 | 第1茬First cutting | 101.87±7.90a | 101.77±13.38a | 108.59±10.20a | 109.35±8.32a | 101.85±12.83a | 107.97±8.91a |
第2茬Second cutting | 83.41±10.45a | 82.99±10.24a | 83.79±10.71a | 82.00±11.97a | 78.94±12.72a | 80.95±9.48a | |
第3茬Third cutting | 80.75±12.87a | 86.44±11.93a | 79.18±9.27a | 78.76±12.60a | 78.68±11.11a | 81.58±15.17a | |
第4茬Fourth cutting | 48.90±12.04a | 56.72±16.90a | 53.05±22.06a | 69.81±17.17a | 59.91±20.17a | 56.18±11.81a | |
2022 | 第1茬First cutting | 132.72±22.36a | 133.47±28.46a | 115.46±21.02b | 132.32±20.41a | 104.09±19.10b | 110.22±15.81b |
第2茬Second cutting | 112.70±11.91ab | 120.08±14.93a | 105.54±13.95b | 95.52±10.29c | 108.25±12.80b | 110.22±13.87b | |
第3茬Third cutting | 88.58±9.94bc | 96.01±8.22ab | 103.79±12.52a | 81.69±13.32c | 91.72±8.21b | 94.65±15.27b | |
第4茬Fourth cutting | 76.09±8.69bc | 78.47±6.72b | 92.67±8.18a | 70.33±14.19cd | 66.36±7.16d | 71.73±13.40bcd | |
平均Mean | 87.50±25.48ab | 90.73±25.32a | 89.41±21.50ab | 87.09±21.93ab | 82.66±19.97b | 87.92±19.05ab |
表3 不同秋眠级紫花苜蓿品种株高
Table 3 The plant height of alfalfa varieties with different fall dormancy (cm)
年份Years | 茬次Cutting | WL358 | WL440 | WL712 | WL168 | WL343 | WL525 |
---|---|---|---|---|---|---|---|
2020 | 第1茬First cutting | 62.49±11.22b | 60.66±8.31b | 62.63±9.21b | 64.03±10.54b | 54.14±8.32c | 77.81±9.84a |
2021 | 第1茬First cutting | 101.87±7.90a | 101.77±13.38a | 108.59±10.20a | 109.35±8.32a | 101.85±12.83a | 107.97±8.91a |
第2茬Second cutting | 83.41±10.45a | 82.99±10.24a | 83.79±10.71a | 82.00±11.97a | 78.94±12.72a | 80.95±9.48a | |
第3茬Third cutting | 80.75±12.87a | 86.44±11.93a | 79.18±9.27a | 78.76±12.60a | 78.68±11.11a | 81.58±15.17a | |
第4茬Fourth cutting | 48.90±12.04a | 56.72±16.90a | 53.05±22.06a | 69.81±17.17a | 59.91±20.17a | 56.18±11.81a | |
2022 | 第1茬First cutting | 132.72±22.36a | 133.47±28.46a | 115.46±21.02b | 132.32±20.41a | 104.09±19.10b | 110.22±15.81b |
第2茬Second cutting | 112.70±11.91ab | 120.08±14.93a | 105.54±13.95b | 95.52±10.29c | 108.25±12.80b | 110.22±13.87b | |
第3茬Third cutting | 88.58±9.94bc | 96.01±8.22ab | 103.79±12.52a | 81.69±13.32c | 91.72±8.21b | 94.65±15.27b | |
第4茬Fourth cutting | 76.09±8.69bc | 78.47±6.72b | 92.67±8.18a | 70.33±14.19cd | 66.36±7.16d | 71.73±13.40bcd | |
平均Mean | 87.50±25.48ab | 90.73±25.32a | 89.41±21.50ab | 87.09±21.93ab | 82.66±19.97b | 87.92±19.05ab |
品种Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | |
WL358 | 0.2406±0.0790a | 0.3285±0.0588a | 0.1598±0.1143a | 0.3968±0.0409a | 0.2149±0.0312a | 0.5421±0.0950a | 0.2304±0.0064a | 0.5881±0.2868a |
WL440 | 0.2225±0.0484a | 0.3206±0.0868a | 0.1355±0.1231a | 0.4106±0.0940a | 0.2274±0.0009a | 0.4786±0.0375a | 0.2435±0.0124a | 0.6322±0.1307a |
WL712 | 0.2498±0.0669a | 0.3407±0.0387a | 0.1583±0.1293a | 0.3837±0.0713a | 0.2378±0.0563a | 0.5252±0.0241a | 0.2061±0.0110a | 1.0191±0.6684a |
WL168 | 0.2624±0.0844a | 0.2867±0.0909a | 0.1734±0.1259a | 0.4803±0.0692a | 0.2329±0.0316a | 0.5563±0.0068a | 0.2199±0.0047a | 1.0437±0.6544a |
WL343 | 0.2431±0.0611a | 0.3621±0.0890a | 0.1521±0.1287a | 0.3976±0.0958a | 0.1920±0.0020a | 0.4912±0.0622a | 0.2237±0.0113a | 0.4422±0.1745a |
WL525 | 0.2336±0.0809a | 0.3574±0.0349a | 0.1572±0.1080a | 0.3942±0.0326a | 0.2623±0.0048a | 0.5252±0.0436a | 0.1941±0.0250a | 0.3546±0.0024a |
表4 不同秋眠级紫花苜蓿品种不同茬次干鲜比和叶茎比
Table 4 The dry-fresh ratio and leaf-stem ratio of different fall dormancy alfalfa varieties in different cutting times
品种Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | 干鲜比 Dry-fresh ratio | 叶茎比 Leaf-stem ratio | |
WL358 | 0.2406±0.0790a | 0.3285±0.0588a | 0.1598±0.1143a | 0.3968±0.0409a | 0.2149±0.0312a | 0.5421±0.0950a | 0.2304±0.0064a | 0.5881±0.2868a |
WL440 | 0.2225±0.0484a | 0.3206±0.0868a | 0.1355±0.1231a | 0.4106±0.0940a | 0.2274±0.0009a | 0.4786±0.0375a | 0.2435±0.0124a | 0.6322±0.1307a |
WL712 | 0.2498±0.0669a | 0.3407±0.0387a | 0.1583±0.1293a | 0.3837±0.0713a | 0.2378±0.0563a | 0.5252±0.0241a | 0.2061±0.0110a | 1.0191±0.6684a |
WL168 | 0.2624±0.0844a | 0.2867±0.0909a | 0.1734±0.1259a | 0.4803±0.0692a | 0.2329±0.0316a | 0.5563±0.0068a | 0.2199±0.0047a | 1.0437±0.6544a |
WL343 | 0.2431±0.0611a | 0.3621±0.0890a | 0.1521±0.1287a | 0.3976±0.0958a | 0.1920±0.0020a | 0.4912±0.0622a | 0.2237±0.0113a | 0.4422±0.1745a |
WL525 | 0.2336±0.0809a | 0.3574±0.0349a | 0.1572±0.1080a | 0.3942±0.0326a | 0.2623±0.0048a | 0.5252±0.0436a | 0.1941±0.0250a | 0.3546±0.0024a |
品种 Variety | 干鲜比Dry-fresh ratio | 叶茎比Leaf-stem ratio | ||||||
---|---|---|---|---|---|---|---|---|
2020 | 2021 | 2022 | 平均Average | 2020 | 2021 | 2022 | 平均Average | |
WL358 | 0.23±0.01ab | 0.20±0.02a | 0.26±0.03a | 0.23±0.03a | 0.79±0.19cd | 0.45±0.11a | 0.48±0.22a | 0.57±0.19a |
WL440 | 0.22±0.03ab | 0.21±0.02a | 0.25±0.02a | 0.23±0.02a | 1.00±0.29ab | 0.51±0.15a | 0.41±0.13a | 0.64±0.32a |
WL712 | 0.21±0.01b | 0.19±0.01a | 0.23±0.04a | 0.21±0.02a | 0.85±0.14bcd | 0.70±0.53a | 0.43±0.13a | 0.66±0.21a |
WL168 | 0.22±0.02ab | 0.21±0.01a | 0.26±0.05a | 0.23±0.03a | 0.89±0.16bc | 0.70±0.54a | 0.48±0.18a | 0.69±0.20a |
WL343 | 0.22±0.02ab | 0.20±0.01a | 0.25±0.03a | 0.22±0.02a | 1.06±0.20a | 0.44±0.09a | 0.41±0.12a | 0.64±0.37a |
WL525 | 0.23±0.05a | 0.21±0.03a | 0.25±0.05a | 0.23±0.02a | 0.70±0.14b | 0.41±0.06a | 0.40±0.10a | 0.51±0.20a |
表5 不同秋眠级紫花苜蓿品种干鲜比与叶茎比
Table 5 The dry-fresh ratio and leaf-stem ratio of different fall dormancy alfalfa varieties
品种 Variety | 干鲜比Dry-fresh ratio | 叶茎比Leaf-stem ratio | ||||||
---|---|---|---|---|---|---|---|---|
2020 | 2021 | 2022 | 平均Average | 2020 | 2021 | 2022 | 平均Average | |
WL358 | 0.23±0.01ab | 0.20±0.02a | 0.26±0.03a | 0.23±0.03a | 0.79±0.19cd | 0.45±0.11a | 0.48±0.22a | 0.57±0.19a |
WL440 | 0.22±0.03ab | 0.21±0.02a | 0.25±0.02a | 0.23±0.02a | 1.00±0.29ab | 0.51±0.15a | 0.41±0.13a | 0.64±0.32a |
WL712 | 0.21±0.01b | 0.19±0.01a | 0.23±0.04a | 0.21±0.02a | 0.85±0.14bcd | 0.70±0.53a | 0.43±0.13a | 0.66±0.21a |
WL168 | 0.22±0.02ab | 0.21±0.01a | 0.26±0.05a | 0.23±0.03a | 0.89±0.16bc | 0.70±0.54a | 0.48±0.18a | 0.69±0.20a |
WL343 | 0.22±0.02ab | 0.20±0.01a | 0.25±0.03a | 0.22±0.02a | 1.06±0.20a | 0.44±0.09a | 0.41±0.12a | 0.64±0.37a |
WL525 | 0.23±0.05a | 0.21±0.03a | 0.25±0.05a | 0.23±0.02a | 0.70±0.14b | 0.41±0.06a | 0.40±0.10a | 0.51±0.20a |
品种Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | |
WL358 | 40.40±9.72a | 9.88±5.32a | 39.32±9.40abc | 8.04±0.41ab | 34.55±4.28a | 7.19±2.33a | 20.71±11.11a | 4.91±2.74a |
WL440 | 25.97±12.17a | 6.33±4.36a | 37.35±3.29abc | 7.86±0.33ab | 37.00±0.04a | 8.56±1.71a | 16.26±9.13a | 4.18±2.44a |
WL712 | 37.55±21.33a | 4.10±0.70a | 43.52±2.40a | 9.89±2.34a | 32.27±1.06a | 6.56±1.68a | 18.63±8.74a | 3.65±1.64a |
WL168 | 37.12±12.52a | 9.42±5.17a | 24.66±0.64bc | 5.66±1.20ab | 27.01±3.61a | 5.61±0.38a | 13.64±2.58a | 3.01±0.34a |
WL343 | 30.29±8.10a | 6.91±2.76a | 42.17±0.21ab | 8.31±0.21ab | 39.17±13.23a | 7.79±1.29a | 12.18±10.23a | 2.80±2.46a |
WL525 | 35.24±13.05a | 8.61±5.96a | 23.39±4.70c | 5.47±0.28b | 41.02±23.77a | 4.76±1.15a | 13.16±0.50a | 2.48±0.23a |
表6 不同秋眠级紫花苜蓿品种不同茬次鲜草与干草产量
Table 6 The fresh and hay yields of different fall dormancy alfalfa varieties in different cutting times (t·hm-2)
品种Variety | 第1茬First cutting | 第2茬Second cutting | 第3茬Third cutting | 第4茬Fourth cutting | ||||
---|---|---|---|---|---|---|---|---|
鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | 鲜草产量 Fresh yield | 干草产量 Hay yield | |
WL358 | 40.40±9.72a | 9.88±5.32a | 39.32±9.40abc | 8.04±0.41ab | 34.55±4.28a | 7.19±2.33a | 20.71±11.11a | 4.91±2.74a |
WL440 | 25.97±12.17a | 6.33±4.36a | 37.35±3.29abc | 7.86±0.33ab | 37.00±0.04a | 8.56±1.71a | 16.26±9.13a | 4.18±2.44a |
WL712 | 37.55±21.33a | 4.10±0.70a | 43.52±2.40a | 9.89±2.34a | 32.27±1.06a | 6.56±1.68a | 18.63±8.74a | 3.65±1.64a |
WL168 | 37.12±12.52a | 9.42±5.17a | 24.66±0.64bc | 5.66±1.20ab | 27.01±3.61a | 5.61±0.38a | 13.64±2.58a | 3.01±0.34a |
WL343 | 30.29±8.10a | 6.91±2.76a | 42.17±0.21ab | 8.31±0.21ab | 39.17±13.23a | 7.79±1.29a | 12.18±10.23a | 2.80±2.46a |
WL525 | 35.24±13.05a | 8.61±5.96a | 23.39±4.70c | 5.47±0.28b | 41.02±23.77a | 4.76±1.15a | 13.16±0.50a | 2.48±0.23a |
品种Variety | 鲜草产量Fresh yield | 干草产量Hay yield | ||||||
---|---|---|---|---|---|---|---|---|
2020 | 2021 | 2022 | 平均Average | 2020 | 2021 | 2022 | 平均Average | |
WL358 | 24.71±0.28a | 123.86±0.85a | 146.07±19.38a | 98.21±64.62a | 5.66±0.06a | 21.06±0.91a | 37.07±4.67a | 21.26±15.71a |
WL440 | 19.91±0.71ab | 103.95±11.89a | 129.36±0.85a | 84.41±57.28a | 4.55±0.16ab | 20.66±2.40a | 33.17±0.26a | 19.46±14.35a |
WL712 | 21.76±0.86ab | 111.65±2.96a | 152.28±46.69a | 95.23±66.79a | 5.43±1.71ab | 20.68±0.68a | 27.70±7.44a | 17.94±11.39a |
WL168 | 24.26±5.87a | 93.85±2.41a | 111.01±12.38a | 76.37±45.94a | 6.07±1.47a | 18.28±4.14a | 28.15±3.13a | 17.50±11.06a |
WL343 | 8.21±0.43b | 120.35±39.77a | 127.26±14.86a | 85.27±66.83a | 1.92±0.10b | 25.69±5.86a | 28.43±2.64a | 18.68±14.58a |
WL525 | 28.01±1.84a | 89.73±13.71a | 135.87±9.62a | 84.54±54.12a | 6.14±0.40a | 18.59±0.49a | 24.37±3.71a | 16.37±9.32a |
表7 不同秋眠级紫花苜蓿品种3年产草量
Table 7 The grass yield of different fall dormancy alfalfa varieties in three years (t·hm-2)
品种Variety | 鲜草产量Fresh yield | 干草产量Hay yield | ||||||
---|---|---|---|---|---|---|---|---|
2020 | 2021 | 2022 | 平均Average | 2020 | 2021 | 2022 | 平均Average | |
WL358 | 24.71±0.28a | 123.86±0.85a | 146.07±19.38a | 98.21±64.62a | 5.66±0.06a | 21.06±0.91a | 37.07±4.67a | 21.26±15.71a |
WL440 | 19.91±0.71ab | 103.95±11.89a | 129.36±0.85a | 84.41±57.28a | 4.55±0.16ab | 20.66±2.40a | 33.17±0.26a | 19.46±14.35a |
WL712 | 21.76±0.86ab | 111.65±2.96a | 152.28±46.69a | 95.23±66.79a | 5.43±1.71ab | 20.68±0.68a | 27.70±7.44a | 17.94±11.39a |
WL168 | 24.26±5.87a | 93.85±2.41a | 111.01±12.38a | 76.37±45.94a | 6.07±1.47a | 18.28±4.14a | 28.15±3.13a | 17.50±11.06a |
WL343 | 8.21±0.43b | 120.35±39.77a | 127.26±14.86a | 85.27±66.83a | 1.92±0.10b | 25.69±5.86a | 28.43±2.64a | 18.68±14.58a |
WL525 | 28.01±1.84a | 89.73±13.71a | 135.87±9.62a | 84.54±54.12a | 6.14±0.40a | 18.59±0.49a | 24.37±3.71a | 16.37±9.32a |
图1 参试苜蓿品种各指标之间的相关性FD: 秋眠级Fall dormancy; FY: 鲜草产量Fresh yield; HY: 干草产量Hay yield; PH: 株高Plant height; PDM: 单株干重Dry mass per plant; AGR: 绝对生长速率Absolute growth rate; RGR: 相对生长速率Relative growth rate; LSR: 叶茎比Leaf-stem ratio; HFR: 干鲜比Hay-fresh ratio. *: P<0.05; **: P<0.01.
Fig.1 Correlationship of each index of alfalfa varieties
项目 Item | 等权关联度 Equal weighted correlative degree | 排序 Ranking |
---|---|---|
相对生长速率Relative growth rate | 0.804 | 1 |
鲜草产量Fresh yield | 0.769 | 2 |
干鲜比Dry-fresh ratio | 0.765 | 3 |
绝对生长速率Absolute growth rate | 0.765 | 4 |
株高Plant height | 0.761 | 5 |
单株干重Dry mass per plant | 0.742 | 6 |
叶茎比Leaf-stem ratio | 0.725 | 7 |
表8 紫花苜蓿品种各指标与干草产量的关联度及排序
Table 8 The correlative degree and ranking between seven indexes and hay yield of alfalfa varieties
项目 Item | 等权关联度 Equal weighted correlative degree | 排序 Ranking |
---|---|---|
相对生长速率Relative growth rate | 0.804 | 1 |
鲜草产量Fresh yield | 0.769 | 2 |
干鲜比Dry-fresh ratio | 0.765 | 3 |
绝对生长速率Absolute growth rate | 0.765 | 4 |
株高Plant height | 0.761 | 5 |
单株干重Dry mass per plant | 0.742 | 6 |
叶茎比Leaf-stem ratio | 0.725 | 7 |
指标Index | 品种 Variety | |||||
---|---|---|---|---|---|---|
WL358 | WL440 | WL712 | WL168 | WL525 | WL343 | |
干鲜比Dry-fresh ratio | 0.9989 | 0.9982 | 0.9955 | 0.9992 | 0.9955 | 0.9972 |
叶茎比Leaf-stem ratio | 0.9753 | 0.9886 | 0.9902 | 0.9965 | 0.9747 | 0.9873 |
单株干重Dry mass per plant | 0.7730 | 0.6912 | 0.7127 | 0.7495 | 0.7302 | 0.9545 |
株高Plant height | 0.5238 | 0.6637 | 0.6074 | 0.4785 | 0.6055 | 0.3608 |
绝对生长速率Absolute growth rate | 0.9782 | 0.9881 | 0.9841 | 0.9603 | 0.9700 | 0.9662 |
相对生长速率Relative growth rate | 0.9998 | 0.9998 | 1.0000 | 0.9985 | 0.9998 | 0.9998 |
干草产量Hay yield | 0.9030 | 0.9012 | 0.8138 | 0.7619 | 0.7115 | 0.8917 |
鲜草产量Fresh yield | 0.6587 | 0.3866 | 0.5189 | 0.3335 | 0.4387 | 0.4914 |
返青期Returning green period | 0.9523 | 0.7126 | 0.5113 | 0.8826 | 0.7233 | 0.5454 |
越冬率 Overwintering survival rate | 0.9867 | 0.9792 | 0.9177 | 0.9949 | 0.8974 | 0.9026 |
关联度Correlative degree | 0.8750 | 0.8310 | 0.8050 | 0.8160 | 0.8050 | 0.8100 |
排序Ranking | 1 | 2 | 5 | 3 | 6 | 4 |
表9 不同秋眠级苜蓿品种的关联度与排序
Table 9 The correlative degree and ranking of alfalfa varieties with different fall dormancy
指标Index | 品种 Variety | |||||
---|---|---|---|---|---|---|
WL358 | WL440 | WL712 | WL168 | WL525 | WL343 | |
干鲜比Dry-fresh ratio | 0.9989 | 0.9982 | 0.9955 | 0.9992 | 0.9955 | 0.9972 |
叶茎比Leaf-stem ratio | 0.9753 | 0.9886 | 0.9902 | 0.9965 | 0.9747 | 0.9873 |
单株干重Dry mass per plant | 0.7730 | 0.6912 | 0.7127 | 0.7495 | 0.7302 | 0.9545 |
株高Plant height | 0.5238 | 0.6637 | 0.6074 | 0.4785 | 0.6055 | 0.3608 |
绝对生长速率Absolute growth rate | 0.9782 | 0.9881 | 0.9841 | 0.9603 | 0.9700 | 0.9662 |
相对生长速率Relative growth rate | 0.9998 | 0.9998 | 1.0000 | 0.9985 | 0.9998 | 0.9998 |
干草产量Hay yield | 0.9030 | 0.9012 | 0.8138 | 0.7619 | 0.7115 | 0.8917 |
鲜草产量Fresh yield | 0.6587 | 0.3866 | 0.5189 | 0.3335 | 0.4387 | 0.4914 |
返青期Returning green period | 0.9523 | 0.7126 | 0.5113 | 0.8826 | 0.7233 | 0.5454 |
越冬率 Overwintering survival rate | 0.9867 | 0.9792 | 0.9177 | 0.9949 | 0.8974 | 0.9026 |
关联度Correlative degree | 0.8750 | 0.8310 | 0.8050 | 0.8160 | 0.8050 | 0.8100 |
排序Ranking | 1 | 2 | 5 | 3 | 6 | 4 |
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