tai sao re cay dam sau va lan rong trong long dat

Co may loai than chinh,neu dac diem va cho vi du

cay ho hap suot ngay dem ca cac co quan cua cay deu tham gia ho hap .

trong qua trinh ho hap , cay lay khi oxide phan giai cac chat huu co ,san ra nang luong can thiet cho cac hoat dong song ,dong thoi thai ra khi cacbonicva hoi nuoc.

phai lam cho dat thoang tao dieu kien cho hat moi gieo va re ho hap totde gop phan nang cao nang suat cay trong.

choi la co Mo phan sinh ngon ko co mam hoa choi la phat trien thanh la