摘要
Richards方程能较好地模拟小麦子粒的灌浆过程。大粒饱满品种鄂恩 1号子粒灌浆活跃期长 ,灌浆后期子粒增重势头旺盛 ;大粒不饱满品系“95A - 10”子粒灌浆活跃期短 ,光合产物供应不足 ,“流”不通畅是限制子粒增重的主要因素 ;小粒饱满品种华麦 8号的灌浆特性介于二者之间。鄂恩 1号、“95A - 10”为强、弱势子粒灌浆同步型品种 ;鄂恩 1号的灌浆曲线偏左 ,“95A - 10”的灌浆曲线偏右。华麦 8号为强。
The grain filling processes of 3 typical wheat cultivars were modeled with Richards equation,and relationships of resource and sink limiting grain weight increasing was analyzed The result showed that,the grain filling processes could be better modeled by using Richards equation The grain active growth duration of 'Een No 1' with large and plump grains was long,and the tendency of grain filling and increasing grain weight was vigorous In contrary,the grain active growth duration of '95A-10' with large grain volume but wrinkled grain was short The supply of photosynthetic product for grain filling was not enough,and the flow of nutrient substances was inhibited,and it was key factor limiting grain weight of '95A-10' the grain filling processes of vigorous grain and weak grain of 'Een No 1' and '95A-10' were synchronization,but 'Hua mai No.8' was asynchronous.The curves of grain filling of 'Een No.1' was inclined to the left,but '95A-10' was inclined to the right
出处
《湖北农业科学》
北大核心
2001年第6期26-28,共3页
Hubei Agricultural Sciences
