Comparative Study on Agronomic Traits and Yield Among Different Edible Sunflower Varieties

doi:10.11924/j.issn.1000-6850.casb2022-0115

Abstract

Abstract:

In order to screen out suitable edible sunflower varieties for large-scale promotion in Ta’e reclamation area, seven edible sunflower varieties selected and introduced were compared with ‘Shuangxing 5’. By comparing the differences of agronomic traits, growth period and yield among different varieties, the value indexes with promotion potential were analyzed, and the dominant varieties were selected. Correlation and path analysis showed that plant height, stem diameter and grain number of the tested varieties had a significantly positive correlation with the yield. The traits with the largest direct path coefficient of edible sunflower yield were plant height and stem diameter. Regression analysis further clarified the direct relationship of plant height, stem diameter and plate diameter with the yield. The stem diameter of ‘Feitian No.1’, ‘Lefeng No.30’, ‘JK518E’ and ‘Tongqing No.5’ were significantly higher than that of the control (P<0.05). The grain size and 100-grain weight of ‘Shuangxing 44’ were significantly higher than those of the control (P<0.05). The results showed that the yield of ‘Feitian No.1’, ‘Shuangxing 44’ and ‘JK518E’ were not significantly different from that of the control. The yield of ‘Tongqing No.5’ was increased by 8.41%. In summary, ‘Shuangxing 44’ has the advantages of full grain, high 100-grain weight and large plate diameter, as well as good commodity. ‘Tongqing No.5’ has the advantages of strong plant growth, high number of grains per plate, moderate grain size and high yield, and has more extensive promotion value.

Key words: edible sunflower, Ta’e reclamation area, agronomic traits, growth period, correlation analysis, yield

CLC Number:

S565.5

LUO Jingjing, WANG Heya, LIU Yantao. Comparative Study on Agronomic Traits and Yield Among Different Edible Sunflower Varieties[J]. Chinese Agricultural Science Bulletin, 2022, 38(28): 7-12.

Figures/Tables 7

References 25

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变量	株高	茎粗	盘径	籽粒长	籽粒宽	籽粒数	百粒重	产量
平均值	215.21 cm	37.60 cm	19.93 cm	24.70 mm	10.18 mm	843.67个	22.68 g	3108.15 kg/hm²
标准差	12.61	1.93	2.18	1.66	0.77	80.88	2.44	389.7
变异系数/%	5.86	5.13	10.92	6.72	7.58	9.59	10.77	12.54

变量	株高	茎粗	盘径	籽粒长	籽粒宽	籽粒数	百粒重	产量
平均值	215.21 cm	37.60 cm	19.93 cm	24.70 mm	10.18 mm	843.67个	22.68 g	3108.15 kg/hm²
标准差	12.61	1.93	2.18	1.66	0.77	80.88	2.44	389.7
变异系数/%	5.86	5.13	10.92	6.72	7.58	9.59	10.77	12.54

	产量	株高	茎粗	盘径	籽粒长	籽粒宽	籽粒数	百粒重
产量	1	0.437	0.443	-0.092	-0.0170	0.007	0.451	0.001
株高	0.069	1	0.088	0.081	-0.180	0.494^*	0.212	-0.010
茎粗	0.065	0.728	1	0.429	0.231	-0.210	-0.531^*	0.155
盘径	0.718	0.748	0.076	1	0.079	-0.065	-0.084	-0.430
籽粒长	0.947	0.474	0.356	0.754	1	0.565^*	0.237	0.417
籽粒宽	0.978	0.037^*	0.402	0.799	0.015^*	1	-0.270	-0.182
籽粒数	0.061	0.398	0.023^*	0.739	0.343	0.278	1	-0.383
百粒重	0.996	0.956	0.538	0.068	0.085	0.471	0.117	1

	产量	株高	茎粗	盘径	籽粒长	籽粒宽	籽粒数	百粒重
产量	1	0.437	0.443	-0.092	-0.0170	0.007	0.451	0.001
株高	0.069	1	0.088	0.081	-0.180	0.494^*	0.212	-0.010
茎粗	0.065	0.728	1	0.429	0.231	-0.210	-0.531^*	0.155
盘径	0.718	0.748	0.076	1	0.079	-0.065	-0.084	-0.430
籽粒长	0.947	0.474	0.356	0.754	1	0.565^*	0.237	0.417
籽粒宽	0.978	0.037^*	0.402	0.799	0.015^*	1	-0.270	-0.182
籽粒数	0.061	0.398	0.023^*	0.739	0.343	0.278	1	-0.383
百粒重	0.996	0.956	0.538	0.068	0.085	0.471	0.117	1

自变量	直接通径系数	间接通径系数
自变量	直接通径系数	株高→产量	茎粗→产量	盘径→产量	籽粒长→产量	籽粒宽→产量	籽粒数→产量	百粒重→产量
株高→产量	0.441		0.039	0.036	-0.079	0.218	0.093	-0.006
茎粗→产量	0.447	0.039		0.192	0.103	-0.094	-0.237	0.069
盘径→产量	-0.072	-0.006	-0.031		-0.006	0.005	0.006	0.032
籽粒长→产量	-0.015	0.003	-0.003	-0.001		-0.008	-0.004	-0.006
籽粒宽→产量	0.006	0.003	-0.001	0.000	0.003		-0.002	-0.001
籽粒数→产量	0.491	0.104	-0.261	-0.041	0.116	-0.133		-0.188
百粒重→产量	0.001	0.000	0.000	0.000	0.000	0.000	0.000