盐胁迫对2个不同盐敏感性水稻品种（系）叶片光合特性与产量的影响

荆培培,任红茹,杨洪建,戴其根

Effects of Saline Stress on Leaf Photosynthesis Characteristics and Grain Yield of Two Rice Cultivars (Lines)

Peipei Jing,Hongru Ren,Hongjian Yang,Qigen Dai

表2 盐胁迫对水稻关键生育时期的干物重及阶段干物重积累的影响

Table 2 Effects of saline stress on dry matter weight and dry matter accumulation of rice at the main growth stages

基因型 Genotype	盐浓度(%) Salt concentration	干物重Dry matter weight (t/hm²)			拔节-抽穗Jointing-heading		抽穗-成熟Heading-maturity
基因型 Genotype	盐浓度(%) Salt concentration	拔节期 Jointing	抽穗期 Heading	成熟期 Maturity	积累量(t/hm²) Accumulation	比例(%) Percentage	积累量(t/hm²) Accumulation	比例(%) Percentage
武运粳30	0	3.4a	10.7a	17.4a	7.2a	41.5	6.7a	38.7
Wuyunjing 30	0.07	2.7bc	8.3bc	13.5bc	5.6b	41.3	5.2c	38.6
	0.14	2.3e	7.0d	11.4c	4.7c	41.2	4.4d	38.3
	0.21	1.9f	5.6f	9.1e	3.7d	40.9	3.5e	38.5
	0.28	1.5g	4.6gh	7.4g	3.0e	40.8	2.8f	38.3
	0.35	1.3gh	3.8h	6.1h	2.5f	40.7	2.3g	38.2
振稻23309	0	2.7bc	8.3bc	14.3b	5.6b	39.3	6.0b	42.0
Zhendao 23309	0.07	2.6c	8.0bc	13.7bc	5.4b	39.1	5.7b	41.8
	0.14	2.5cd	7.3d	12.4c	4.8c	38.7	5.1c	41.5
	0.21	2.2e	6.3e	10.7cd	4.1cd	38.4	4.4d	41.3
	0.28	2.0f	5.6f	9.4e	3.6d	38.2	3.8e	40.8
	0.35	1.8f	5.0g	8.4f	3.2e	37.9	3.4ef	40.3