Responses to boron deficiency in 7 varieties of rape (Brassica napus L.)
Responses to boron deficiency in 7 varieties of rape (Brassica napus L.)
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发表时间：
2004
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影响因子：
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通讯作者：
S. Lei;Nian Fu-zhao;Z. Hua;Xue Fangsen;Meng Jin-ling
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作者：
S. Lei;Nian Fu-zhao;Z. Hua;Xue Fangsen;Meng Jin-ling
盆栽试验结果表明，8Z05和宁优7号为硼高效倾向品种，华双3号、6203、97009和97081为硼中效品种，泰比多尔为硼低效品种。B_2处理(B0.30 mg/kg土)与B_3(B1.00 mg/kg土)处理在同一品种上的人工授粉结果表明，在B_2水平上，硼低效品种的生殖生长受阻程度大于硼效率品种和硼效率倾向品种。缺硼条件下，硼高效品种能尽量将吸收的硼分配到生长中心，或优先向幼嫩器官转运，满足生长所需的硼比低效品种少。这可能是硼高效的生理机制之一。
8Z05 and Ningyou No.7 were proved to be boron-efficiency tendency cultivars; Huashuang 3, 6203, 97009 and 97081 be boron mid-efficiency cultivars; Tapidor be a boron-inefficiency cultivar according to the data of Qingyou No.10 and Bakow by pot culture experiments. Results of artificial pollination between B_2 treatment (B 0.30mg/kg soil) and B_3 (B 1.00mg/kg soil) treatment in the same genotype showed that reproductive growth of boron inefficiency cultivars were more hampered than boron-efficiency and boron-efficiency tendency cultivars in the B_2 level. Under boron deficiency, boron efficiency cultivars could try their best to distribute boron absorbed to the growth centers, or preferential translocation of boron to young organs, and they need less boron to satisfy the growth than boron inefficiency cultivars. Maybe it was one of the boron efficiency physiological mechanisms.