關於馬鈴薯的問題

藍仔

小弟正在念台灣某大學,在閱讀paper時發現很多關於馬鈴薯的不懂問題
希望各位大大能幫助解決

1.我們在種植馬鈴薯時,有3~4條的莖從土的表面長出來. 這樣的地上部的莖(不含側莖)越多,代表馬鈴薯(地下)越多

2.我們在計算馬鈴薯的莖密度(stem density)時會比計算塊莖密度(tuber density)來的簡單嗎?

3.在看paper時,有一點看不懂他的材料方法,可能小弟英文功力甚差,希望有人能幫忙翻譯..
Each plot was 18 m wide (two passes with the potato planter) and 400 m long.Subplots were established at four distinct locations across the length of the plot following emergence.Each subplot included five plants, and the distance between the first and fifth plant was recorded to allow for calculating density

所以他的意思是說 400m 有分四個小區,每個小區種5種馬鈴薯嗎?那就是說400m 只種20個馬鈴薯,那也太少了吧

4.也許有大大有讀過這份paper嗎,可以密我嗎?
Evaluation of the effect of density on potato yield and tuber size distribution
或許有大大想要的,要可以密我拿.

5.還有就是一個馬鈴薯種下去,大概能生長多少個馬鈴薯?
有人知道Russet burbank 這個品種嗎?他好像單株結薯數大約是20,會很誇張嗎?還是我看錯?

感謝各位英雄來幫忙