id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72625	Peltonen, Jari; Virtanen, Ari; Helenius, Jaakko; Suopelto, Juha; Kiltilä, Kari; Eloranta, Esko	Determination of barley nitrogen status with chlorophyll meter for high β-amylase in grains	1995	7	.pdf	application/pdf	3906	197	58	According to the res- ults of this study it can be stated that the critical SPAD values at pollination (i.e. pollen grains on well-developed stigmatic hairs, GS 52-58) are 37 SPAD units for grain yield and 41 SPAD units for P-amylase activity. Key words: P-amylase activity, grain protein concentration, grain yield, chlorophyll content, plant tissue N status ntroduction P-amylase is an importantbarley (Hordeum vul- gäre L.) protein, determining the technical qual- ity of starch used for various industrial process- es in Finland (Helenius 1992).	cache/afs-72625.pdf	txt/afs-72625.txt