Glomus intraradices Attenuates the Negative Effect of Low Pi Supply on Photosynthesis and Growth of Papaya Maradol Plants

Table 1

Arbuscular mycorrhizal colonization (%) in papaya Maradol roots, at week five of the experiment. Data are means (𝑛=5). Values with the same letter in each strain across the Pi gradient had no statistical difference (Tukey 95%). Values with the same uppercase letter in the row had no statistical difference.

Mycorrhizal condition	Phosphorus (mM)
	0.0	0.3	0.6	1.0*
−Mic	0.0	0.0	0.0	0.0
+Mic1	82.0aA	16.0bA	10.0bA	nc
+Mic2	76.0aA	37.0bB	32.0bB	nc

*Total control with Pi 0 mM where arbuscular mycorrhizal colonization was not observed; −Mic: without mycorrhiza, +Mic1: commercial strain, +Mic2: noncommercial strain. nc = not considered.