问题:一般苗木接种菌根菌的方法有()。A、森林菌根土接种B、菌根“母苗”接种C、菌根真菌纯培养接种D、子实体接种E、菌根菌剂接种...
Tuesday, December 24, 2024
问题:一般富含脂肪和蛋白质的种子寿命比含淀粉多的种子寿命()。A、短B、相同C、长D、不确定...
Friday, January 12, 2024
Thursday, July 27, 2023
Saturday, May 17, 2025
Monday, December 30, 2024
问题:根据苗木繁殖材料不同,可以划分为()和()。按苗木培育年限不同可以分为()和()。...
Thursday, January 4, 2024
Sunday, September 29, 2024
Wednesday, December 25, 2024
Thursday, August 29, 2024
Saturday, March 16, 2024
问题:遗传品质指繁殖材料的遗传背景,主要通过()来实现。A、引种B、选种C、杂交育种D、遗传转化...
Monday, February 12, 2024
Monday, December 4, 2023
Wednesday, September 14, 2022
问题:千粒重的测定方法有3种。通常采用()测定。A、百粒法B、千粒法C、万粒法D、全量法...
Friday, January 12, 2024
Wednesday, September 14, 2022
Thursday, July 18, 2024
Saturday, December 28, 2024
问题:苗木规格和活力等指标没有达到育苗技术规程或标准规定的要求、不能出...
Monday, September 12, 2022
Thursday, July 18, 2024
问题:()是用人工的方法打破种子的休眠,促进种子萌芽的过程。...
Wednesday, May 28, 2025